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PROPRIETARY INFORMATIONTHIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OFBOSE CORPORATION WHICH IS BEING FURNISHED ONLY FORTHE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCTBY AN AUTHORIZED SERVICE CENTER OR OWNER OF THEBOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR USEDFOR ANY OTHER PURPOSE.
Software Update Information
The software in the AV28 Media center can be updated using a software update CD available fromBose® service. Refer to procedure 2 on page 70, Console-Key Special Function Features, todetermine the software version of the unit. Contact Bose Service or refer to the Bose serviceextranet site for information regarding the latest software revision; click on Lifestyle® music centersand then AV28 media center. http://serviceops.bose.com
Contents
Safety Information ............................................................................................................................2Electrostatic Discharge Sensitive (ESDS) Device Handling .........................................................2Specifications ................................................................................................................................ 3-5Theory of Operation ................................................................................................................... 6-28Disassembly/Assembly ............................................................................................................ 29-30Setting-up a Computer to Issue TAP Commands ........................................................................31Issuing TAP Commands to the AV28 media center .....................................................................32General Test Procedure Notes .......................................................................................................32Functional/Performance Verification Tests ............................................................................. 33-34Adjustment/Performance Verification Procedures ................................................................ 35-37Figure 1. AM Test Setup ....................................................................................................................35Figure 2. Tap Test Cable Part Number 264565 ..................................................................................38Part List Notes.................................................................................................................................38Main Part List ...................................................................................................................................39Figure 3. Exploded View ....................................................................................................................40Main PCB 260318-0 Electrical Part List ................................................................................... 41-55Tuner PCB 260322-1 Electrical Part List ................................................................................. 56-60Head Unit Packaging Part List .......................................................................................................61Figure 4. Console Packaging ............................................................................................................61Figure 6. Laser Current Measurement Point ......................................................................................62Figure 5. DVD Player Rear Panel ......................................................................................................62Laser Current Measurement ..........................................................................................................62Integrated Circuit Diagrams ..................................................................................................... 63-67Changing House Codes .................................................................................................................68Figure 7. House Code Settings .........................................................................................................68Zone 2 Operation ............................................................................................................................69Figure 8. Zone 2 Remote Control Switch Setting ..............................................................................69Console-Key Special Function Features ......................................................................................70
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1. Parts that have special safety characteristics are identified by the symbol on schematicsor by special notes on the parts list. Use only replacement parts that have critical characteristicsrecommended by the manufacturer.
2. Make leakage current or resistance measurements to determine that exposed parts are accept-ably insulated from the supply circuit before returning the unit to the customer. Use the followingchecks to perform these measurements:
A. Leakage Current Hot Check-With the unit completely reassembled, plug the AC line corddirectly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leakagecurrent tester or a metering system that complies with American National Standards Institute(ANSI) C101.1 “Leakage Current for Appliances” and Underwriters Laboratories (UL) 6500 IEC60065 paragraph 9.1.1. With the unit switch first in the ON position and then in OFF position,measure from a known earth ground (metal water-pipe, conduit, etc.) to all exposed metal parts ofthe unit (antennas, handle bracket, metal cabinet, screw-heads, metallic overlays, control shafts,etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Anycurrent measured must not exceed 0.5 milliamp. Reverse the unit power cord plug in the outlet andrepeat test. ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATEA POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THEUNIT TO THE CUSTOMER.
B. Insulation Resistance Test Cold Check-(1) Unplug the power supply and connect a jumperwire between the two prongs of the plug. (2) Turn on the power switch of the unit. (3) Measure theresistance with an ohmmeter between the jumpered AC plug and each exposed metallic cabinetpart on the unit. When the exposed metallic part has a return path to the chassis, the readingshould be between 2 and 5.2 Megohms. When testing 3 wire products, the resistance measured tothe product enclosure should be between 2 and infinite Meg ohms. Also, the resistance measuredto exposed output/input connectors should be between 4 and infinite Meg ohms. When testing 2wire products, the resistance measured to exposed output/input connectors should be between 4and infinite Meg ohms. If it is not within the limits specified, there is the possibility of a shock haz-ard, and the unit must be repaired and rechecked before it is RETURNED TO THE CUSTOMER.
ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) DEVICE HANDLING
This unit contains ESDS devices. We recommend the following precautions when repairing,replacing or transporting ESDS devices:
• Perform work at an electrically grounded work station.
• Wear wrist straps that connect to the station or heel straps that connect to conductive floor mats.
• Avoid touching the leads or contacts of ESDS devices or PC boards even if properly grounded.Handle boards by the edges only.
• Transport or store ESDS devices in ESD protective bags, bins, or totes. Do not insert unpro-tected devices into materials such as plastic, polystyrene foam, clear plastic bags, bubble wrap orplastic trays.
SAFETY INFORMATION
3
Specifications
Physical Description:Dimensions: 15.8" W x 11.0" D x 3.5" H (40.1 x 27.9 x 8.9 cm)Weight: 8.2 lbs. (3.7 kg)Cover: AluminumBase: Molded plasticDisplay: Vacuum fluorescentInputs:TAPE: 2 Vrms, maximumAUX: 2 Vrms, maximumVCR: 2 Vrms, maximumTV: 2 Vrms, maximumDigital: S/PDIF (1 each for TV, VCR, TAPE, and AUX)Composite video: NTSC or PAL format 1Vpp with sync 75 OhmS-Video: Luminance 1Vpp, chrominance 0.3Vpp
Component video: NTSC or PAL 1Vpp with sync on YOptical input: S/PDIF digital, mapped to inputFM antenna: 75 OhmAM antenna: 12uHTV sensor: NTSC/PAL/HDTV/480p compatiblePower: 33 Vdc, 2.1mm jack, provided by DCS91 power packSerial data port: 3.5mm miniature stereo jack, data in/outRemote control receiver: RF or IR, user selectableOutputs:Speaker Zone 1: S/PDIF and variable analogSpeaker Zone 2: S/PDIF and variable analogRecord L and R: Fixed audioRecord digital: S/PDIF and OpticalOptical output: S/PDIF, -15 to -21 dBmComposite video: NTSC or PAL 1Vpp with sync 75 OhmS-Video: Luminance 1Vpp, Chrominance 0.3Vpp
IR: Controls other manufacturer's IR operated devices,universal method
FM Tuner:Tuning range: 87.7 MHz-107.9 MHzDe-emphasis: 75 usecChannel spacing: 200 kHzSensitivity, mono usable: 13 dBfStereo, 50 dB quieting: 38 dBfSignal-to-noise @ 65 dBf: Mono: 74 dBf, Stereo: 70 dBfNoise ratio @ 65 dBf: Mono: 85, Stereo: 85Harmonic distortion, 1 kHz, @ 65dBf Mono: 0.3%, Stereo: 0.4%Capture ratio @ 45 dBf: 2.0 dBAM rejection @ 45 dBf: 60 dBAdjacent channel selectivity, 200 kHz,for both channels, @ 45 dBf:
13 dB
Alternate channel selectivity, 400 kHz,for both channels, @ 45 dBF:
70 dB
Image rejection: 45 dBRF inter-modulation: 65 dBSub-carrier product rejection @ 65 dBf: 55 dBFrequency response 30 Hz-15 kHz: +1.0 dBStereo channel separation @ 1 kHz: 35 dBAuto stop level (seek): 30 dBfMono/Stereo threshold: 40 dBf
4
Specifications
AM Tuner:Channel spacing: 10 kHz
Test Parameter Condition 530-550kHz
560-590kHz
600-700kHz
710-950kHz
960-1400kHz
1410-1610kHz
1620-1710kHz
Nominal 55 52 50 49 48 47 47AmbientLimit
61 57 55 55 53 52 52UsableSensitivity1,dBuV/m
EnvironmentalLimit
67 63 61 60 59 58 58
Nominal 26 26 27 23 23 25 22AdjacentChannelSelectivity2, dB
Ambient Limit 21 21 22 18 18 20 17
Nominal 30 30 30 30 30 29 27AlternateChannelSelectivity2, dB
Ambient Limit 25 25 25 25 25 24 22
Nominal 35 37 40 40 40 40 40ImageRejectionRatio, dB
Ambient Limit 30 32 35 35 35 35 35
Nominal 50 50 50 50 50 50 50Ambient Limit 45 45 45 45 45 45 45
Signal to NoiseRatio, dB
EnvironmentalLimit
40 40 40 40 40 40 40
Nominal 0.6 0.6 0.6 0.6 0.6 0.6 0.6AmbientLimit
1.4 1.4 1.4 1.4 1.4 1.4 1.4Distortion, %
EnvironmentalLimit
2.0 2.0 2.0 2.0 2.0 2.0 2.0
Nominal -3 -3 -3 -3 -3 -3 -3FrequencyResponse, dB@ 220 Hz, 2.0kHz
Ambient Limit -6 -6 -6 -6 -6 -6 -6
Auto StopLevel, dBuV/m
70 ± 7 65 ± 7 63 ± 7 60 ± 7 54 ± 7 48 ± 7 48 ± 7
Single disc CD/DVD:Supported formats: DVD video, Audio CD, CD-R, CD-R/W, MP3 CDCD performance:
Parameter Nominal Limit Test DiscDefect Tracking (void) 1.0 mm 0.8 mm ABEX test disc TCD-725A
Defect Tracking (black dot) 1.0 mm 0.8 mm ABEX test disc TCD-725RDefect Tracking (scratch) 1.6 mm 1.0 mm ABEX test disc TCD-721 R
Defect Tracking(finger print)
75 mm 65 mm ABEX test disc TCD-725R
Defect Tracking(warped disc)
1.0 mm 0.7 mm ABEX test disc TCD-732RA
Defect Tracking(eccentric disc)
210 mm 140 mm ABEX test disc TCD-714R
Cueing Time 2 sec 3 sec Phillips TS4, tracks 1-15
5
Specifications
Analog Inputs:Input level: Full scale output; 2 Vrms maximum, 200 mVrmsInput impedance: 33 kInput coupling: AC coupledAnalog Outputs:Output level: 2 VrmsOutput level from FM: 0.6 VrmsOutput level from AM: 0.4 VrmsSource impedance @ 1 kHz: 220 OhmsLoad impedance: 10 k, 2 k minimumOutput coupling: AC coupledHeadphone Jack:Connector: Mini stereo jackOutput level: 31 mW at THD <0.15% into a 32 Ohm loadElectrical S/PDIF Input:Sampling rates accommodated: 32 kHz, 44.1 kHz, 48 kHzBits recognized and accepted: 16, 20, 24Input impedance: 75 OhmsInput coupling: AC coupledOptical S/PDIF Input:Sampling rates accommodated: 32 kHz, 44.1 kHz, 48 kHzBits recognized and accepted: 16, 20, 24Connector: TOSLINKElectrical/Optical S/PDIF Output:Sampling rates accommodated: 32 kHz, 44.1 kHz, 48 kHzProtocol: SDMI (Secure Digital Music Initiative)Remote Control:Range: 65 ft (20m)RF frequency: 27.145 MHz
6
Theory of Operation
PCB Assembly P/NMain PCB 260318-0IR PCB Part of 260318-0Headphone PCB Part of 260318-0Tuner PCB 260322-1Keypad PCB 254141
1.0 Overview
The AV28 media center is a self-contained DVD/CD/MP3 disc player with an AM/FM tuner for usewith Bose® powered speaker systems. In addition to the two internal sources (DVD/CD and AM/FM tuner), it allows playing up to four external audio sources: TV, VCR, AUX, and TAPE. A 27MHz,one-way RF remote control operates the unit without line-of-sight restriction; provisions for infraredremote control of the media center also exist. An integrated IR Blaster allows limited control ofother manufacturer’s equipment (TV’s, VCR’s and Cable/Satellite Set-Top boxes). The AV28 mediacenter has two independent audio output zones, accessible through circular DIN connectors in theback of the product.
The AV28 media center contains five PCBs:
There are some components shown on schematics whose reference designators end in –NV;these components are not loaded by manufacturing, but their pads exist on the PCB.
Block Diagram
U1CS9800
DVD Decoder IC
Flash
VFD
DVD ROMDrive
IR BlasterBoard
TV PowerDongle
PowerSupplySynch
IRReceiver
ConsoleButtons
UEIBlaster IC RF Remote
XCVR
Audio Path PowerSupply
ETAP
AT
AP
I
CCB Bus
Power Fail
DRAM
Video Path
AM / FMTuner
7
Theory of Operation
Voltage Type PCB Location(schematic page)
Input Outputs
+33 Linear Power Pack 120VAC +12V, +5.1V, +3.3V+12 Switching Tuner (3) V_RAW DVD drive, VFD, +10V+10 Linear Tuner (3) +12 Tuner, Transceiver, Audio path, +8V+8 Linear Main (9) +10 Video circuits+5.1 Switching Main (9) V_RAW DVD drive, Audio path, +3.3+3.3 Switching Main (9) V_RAW Flash, DRAM, U1 I/O & core, misc. logic+2.5 Linear Main (9) +3.3 U1 PLL circuits
2.0 Power Supply Electronics
2.1 Architecture
V_RAW is provided to the console by an external power pack and is approximately 33VDC. Thepower pack is a linear transformer. In addition to the usual large capacitor and full-bridge dioderectifier, a PTC thermistor (effectively a reset-able fuse) is contained in the power pack to protectthe unit under fault conditions. V_RAW enters the console on the tuner PCB, passes through anNTC thermistor to eliminate power supply startup surges, and is fed to the +12V supply and theflat-flex cable, which feeds it to the +5.1V and +3.3V supplies on the Main PCB.
Power Supply Block Diagram
2.2 Switching Power SuppliesSee SD254135 sheet 9 and SD256131 sheet 3 for the power supply circuits.
The switching power supplies are ST L4973D3.3 regulator ICs (U802 and U803 on the Main PCB,and U301 on the Tuner PCB). The power supplies are designed as step-down Buck converters.The voltage fed back to the chip on pin 13 determines the output voltage; the chip’s control circuitrywill work to keep this voltage at +3.3V. The +5.1V and +12V supplies use resistor divide-downnetworks to obtain the +3.3V feedback voltage.
The reference designators discussed in this section correspond to the +12V regulator on the tunerboard; the designs of the +5.1V and +3.3V regulators are nearly identical. A number of additionalcomponents exist to provide filtering functions.
+33VDCS9X
Linear
+12VSMPS
+5.1VSMPS
+3.3VSMPS
+2.5VLinear
+10VLinear
+8VLinear
AC linevoltage
from wall
8
Theory of Operation
2.3 Supply Synchronization Generator
To limit radiated noise, all three switching supplies (12V, 5V and 3.3V) are synchronized to thesame control frequency. This frequency is varied by U1, as needed, to keep noise out of the AMtuner.
U805 is a 74HC592 8-bit binary counter IC with an input register. An 11.2896 MHz clock signal isfed to the counter clock (CCK) pin, and the chip counts on positive edges of this signal. Inputs Athrough H are loaded to the register on positive edges of the register clock (RCK) signal, and theregister outputs are loaded to the counter when the active-low counter load (/CLOAD) is asserted.These two signals are driven by the chip’s own active-low ripple carryout (/RCO), which is also theoutput to the level shifter circuit. The active-low counter clock enable (/CCKEN) is pulled low by a100 Ohm resistor, and the active-low asynchronous counter clear (/CCLR) is tied to the MainPCB’s hardware reset line. The /RCO output is fed to a level shifter circuit (Q801 and Q804).
The synchronization clock is fed to all three switching power supply regulators in the console. Theclock frequency will be either 98.1704 kHz or 101.7081 kHz, depending on the state ofSUPPLY_FREQ_SEL, driven by U1. U1 picks the state based on AM tuner frequency.
2.4 Power Fail Detection
Q802 and Q803 detect a power failure by asserting the active-low /POWER_FAIL signal when theconsole input voltage V_RAW falls below a given threshold (equivalent to an AC line voltage ofabout 75 VACRMS). This signal is fed to U1 as an interrupt so the micro can perform some shut-down functions before it is held in reset; see section 3.1.2 for additional information.
2.5 Grounding
R321 on the Tuner PCB connects PGND (the ground provided to the product by the power pack)and GND (tuner signal ground). The power supply ground on the Main PCB is connected to GNDonly at C832 and C828.
Additional signal ground connections between the Main and Tuner PCBs and between the PCBsand the conductive paint on the plastics are made by conductive gasket material attached to theplastic cover and base.
IC Pin Components Connected Pin Function1 R301, C302, C303 Sets switching frequency (when not controlled
externally)10 C308 Drives internal D-MOS11 R322 Inhibits supply12 R302, C305, C307 Lead-lag filter for compensation loop13 R304, R305 Voltage feedback for control18 C304 +5.1V for external reference19 C306 Sets supply soft-start time constant20 None Supply frequency switching synchronization
(see note)
9
Theory of Operation
2.6 Troubleshooting
Verifying functionality of the power supply system by measuring the DC levels on each supply(including the power pack) is sufficient for basic troubleshooting.
If power supply problems are suspected, or if DC levels on the supplies are incorrect, evaluateand correct these parameters with no power applied:
• Check continuity between J104 and pin 8 of each supply.• Measure the resistance of R321 on the Tuner PCB.• Measure the resistance of feedback resistors (R304 and R305 in the +12V supply) in each supply.• Verify that no supply voltage output is shorted to ground.
3.0 Control Electronics
The majority of the control electronics are located on the Main PCB, the notable exceptions beingthe Infrared Blaster diodes and receiver module (located on an auxiliary PCB under the DVD-ROMdrive tray) and the RF transceiver circuitry (located on the Tuner PCB).
3.1 Processor
U1 is a CS98000 DVD decoder IC that also functions as the media center’s main processor.
U1 contains two built-in 32-bit RISC processors, a DSP core, a memory interface which supportsSDRAM and FLASH ROM, an ATAPI interface, a DMA controller, an MPEG video decoder, on-board data and instruction caches, a digital video interface, digital audio processing, a generalpurpose interface, and numerous general-purpose I/O.
One RISC processor in U1 (RISC0) manages the ATAPI interface to the DVD-ROM drive, andhandles all low-level details associated with playback/navigation of DVD and CD discs. RISC0sends standard ATAPI control commands to the drive and receives MPEG-compressed audio,video, and control information back. It decodes the MPEG information from the DVD-ROM drive onthe ATAPI bus and stores the decoded video into SDRAM for later readout to the video interface. Italso oversees the onboard DSP core, as required, when decoding digital audio data, and sends itout the digital audio interfaces.
The second RISC processor (RISC1) runs Bose® software that handles system control, as-sembles VFD and On-Screen Display (OSD) information, and controls I/O functions includingreading the console buttons, receiving the RF and IR remote control commands, driving the OSDand VFD display on the console, controlling the AM/FM tuner sub-circuit, and driving the IR blastercontrols.
Connections to U1 are made throughout SD254135.
10
Theory of Operation
3.1.1 Processor Clock
U1 is clocked by a crystal inverter-oscillator whose nominal frequency is 27 MHz.
A 10KW resistor (R713) biases one gate of U701, a 74VHCU04 [high-speed, unbuffered] inverter.The crystal in the inverter’s feedback path is designed for a 22pF load, achieved by the seriescombination of the two 30pF load capacitors C704 and C707 and other stray capacitance in theinput gates of U1. R714 sets the pole in the oscillator’s loop response, and R715 buffers the outputbetween the oscillator and U1. See sheet 8 of SD254135.
After the signal is buffered by U1, the 27 MHz clock drives the video circuitry. Frequency accuracywithin ±50ppm of this oscillator circuit is necessary for color video operation.
3.1.2 Processor Reset
U703 generates a 140ms reset pulse at power-on and any time the +3.3V supply dips below 2.93volts (corresponding to an AC line voltage of about 40VACRMS. The pulse is buffered by two ofthe gates of U701, a 74VHCU04 inverter, and distributed as active-low /RESET1. The reset signalensures reliable startup of U1 at power-up and after a brownout.
See the comments in section 2.4 regarding power-fail detection.
3.2 MemorySee sheet 1 of SD254135.
The U1 memory interface supports both SDRAM and flash memory of various sizes. Both memoryICs are connected to the same bus, and a chip select chooses between the two devices. The typeof memory cycle that is run depends on which address space is needed.
3.2.1 FLASH
U2 is a 1-megaword by 16-bit Flash memory IC. FLASH memory is nonvolatile, meaning that itsstored data is not lost when the chip loses power. The FLASH is used to store all applicationsoftware for the product (including software to run on both of U1’s RISC processors and its DSP).This software is programmed into the FLASH by Manufacturing during In-Circuit Test. The FLASHalso stores nonvolatile user parameters, such as AM/FM presets and OSD setup preferences.
U2 shares the memory address and data bus with U3, but its cycle is different from the SDRAM:flash access is asynchronous and does not use a memory clock. Address (pins 1-9, 18-24, and48) and chip select (pin 26) is presented to the chip, and data appears 1 access time later on thedata bus. The flash chip only supplies 16-bit data to U1; the other data bus lines are not drivenduring flash access.
U2 can be programmed in-circuit by U1; this allows media center software updates in the field viaCD-ROM. During reprogramming, the new program is held in SDRAM (along with the operatingprogram) until checksum-verified, then written permanently to FLASH.
11
Theory of Operation
3.2.2 SDRAM
U3 is a 2-megaword by 32-bit synchronous dynamic random access memory (SDRAM) IC. Whenthe media center powers-up, the application program from the FLASH is shadowed into and ex-ecuted out of the SDRAM to improve speed. The SDRAM is also used to hold blocks of com-pressed and decompressed audio and video data, as well as numerous variables and flags, asrequired by the software.
For SDRAM accesses, a memory clock of about 100 MHz that synchronizes data access is sentto the chip at pin 68. Data commands for accesses are coded in the /RAS and /CAS signals (pins18 and 19), and data read/write selection is done by the /WE signal (pin 17). The address to bewritten or read is given on the address bus (pins 25-27 and 60-66). The 32-bit data bus containsthe word to be written or read after the pipeline delay of the memory chip. The detailed operation ofthe SDRAM is outside the scope of this document.
3.3 Remote control
3.3.1 RF TransceiverSee sheet 2 of SD256131.
The AV28 media center RF transceiver operates at 27.145 MHz using on-off keying (OOK). TheRF transceiver circuits are located on the Tuner PCB. The antenna for the RF transceiver systemis the DC power cord attached to J104; a 10mH inductor in the power pack facilitates transmissionand reception over the zip cord. The RF signal is capacitively coupled to the V_RAW line by C214.
3.3.1.1 Receiver
The remote control receiver module is an AM receiver; it takes the RF signal from the antenna line,demodulates it, and outputs the received data to the data slicer circuit. U104, an LM393 dualcomparator, acts as a data slicer and outputs TTL-level signals for the received data waveform.The RF_DATA_RCV output line connects to U1 through J103.
3.3.1.2 Transmitter
The AV28 media center contains a transmitter for future bidirectional remote control operation.Q202 and Y201 form a crystal oscillator that is powered when the XMIT/RCV_SEL line from U1 ishigh. The output of the oscillator is fed to Q205, a Class-C RF amplifier. Data is sent on the trans-mitter by way of the RF_DATA_XMIT line from U1, which powers the amplifier. The amplifier’soutput is fed through a tank circuit and the filtering network.
3.3.1.3 Filtering network
Passive components on the V_RAW line provide filtering for the RF remote signal: L203, C218, andC217 form a 27.145 MHz notch; L205, C219, and C216 form a 45.290 MHz (second harmonic of27.145 MHz) notch. C222, C223, and C224 aid in limiting undesired radiated emissions. FB1 is aferrite bead designed to improve tuner performance by limiting radiated self-noise in the FM band.
12
Theory of Operation
3.3.1.4 RF Remote Control
The RF remote control contains a similar transmitter to the one described in section 3.3.1.2. Theremote’s DIP switch functions are as follows:
Switches 1-4: 4-bit House Code. All AV28 media centers are shipped set to respond to HouseCode 0000 (switches 1-4 all down).
To change the House Code of an AV28 media center, do the following:
1. Turn it OFF using the ALL OFF button on the media center.
2. Press and hold the STORE button on the console.
3. While holding the STORE button, press any button on an RF remote set for the desired HouseCode. When the AV28 receives this RF message, it will adopt the new House Code as its own.
Switches 5-6: 2-bit Zone Code. If switch 6 is up, the remote will control Zone 1. If switch 5 is up, theremote will control Zone 2. If BOTH switches are up, the remote will control BOTH zones.
Switches 7-9: 3-bit Room Code. The AV28 is capable of controlling up to 7 speakers in each zone.Each speaker has a 3-bit Room Code. Zone 1, Room A (000) is defined as the primary room (theconsole buttons will also control this room), and is the Room Code set as a default on all LS28/35bass module speakers shipped with the AV28. To control the media center’s variable analog out-puts, the RF remote control needs to be set for Room G (110).
3.3.2 Infrared Transceiver
The AV28 media center contains a built-in IR Blaster capable of sending control commands out theblack lens along the bottom front of the product to other manufacturers’ A/V equipment. Similarly,an IR receiver is built-in which allows the media center to be controlled by any IR remote controlcapable of sending Bose AV28 control commands.
3.3.2.1 Infrared Blaster IC
The IR Blaster IC (U704) is an 8-bit microcontroller located on the main board, sold by UEI elec-tronics. The IC is pre-programmed with an extensive set of IR control commands for a number ofother manufacturers’ devices. Devices able to be controlled are limited to TV’s, VCR’s, Cable Set-Top Boxes and Satellite Set-Top Boxes. Over one hundred manufacturers are represented, cover-ing the U.S./North American, European, South American and Asian markets. To enable sending IRcontrol commands, the user must select the desired Manufacturer and Device Codes from lists inthe OSD System Setup menus.
Additionally, the AV28 is capable of “teaching” an IR learning remote the commands required tocontrol the media center. When the user enables the Transmit IR function in the System SetupOSD menu, the AV28 will automatically echo all received RF remote control messages out its IRBlaster in Bose AV28 IR format. An IR learning remote can then be taught to control the AV28 byholding it near the front of the media center as the user presses the desired RF buttons.
13
Theory of Operation
3.3.2.2 Infrared Blaster Diodes
Four diodes located on the IR PCB transmit infrared messages to external A/V equipment. U704provides the modulated data for the diodes; Q703 and Q706 supply the +5V drive voltage, andR729 and R730 on the Main PCB limit the IR transmit current (setting the transmit brightness).
3.3.2.3 IR Emitter
For situations where the position of the AV28 does not allow its built-in IR Blaster signals to prop-erly control an external product, a supplemental IR Emitter “dongle” can be plugged into the back ofthe media center and pointed more directly at the equipment in question. This “dongle” is essentiallya combination cable and IR-transmitter diode, and plugs into the jack labeled “IR Emitter (J704).”Q703/Q705 provide the +5V drive voltage for the dongle, and R739/R740 limit the drive current toabout 50mA.
3.3.2.4 Infrared Receiver Module
The IR PCB contains an infrared receiver module. This module allows the media center to becontrolled by any IR remote control capable of sending Bose® AV28 IR commands (NOTE: Re-ceive IR needs to be enabled via the System Setup menus in the OSD first, however). The MainPCB supplies +5.1V to the module. The module performs light filtering functions, optical to electricalconversion, demodulation about a 38-kHz carrier, and level shifting to provide TTL-level outputs toU1. The plastic housing surrounding this area is translucent to infrared. Infrared control must beenabled in the OSD to be functional.
3.3.2.5 Infrared Troubleshooting
During the Power-On Self-Test (POST) phase, the console attempts a query of the IR Blaster ICand an infrared loopback test; TAP query and the console keypad provide access to test results.
If the IR Blaster IC query fails, concentrate troubleshooting efforts on U704 on the Main PCB.
Symptoms of successful queries to the IR Blaster IC and failed loopback tests require trouble-shooting of the IR PCB. First, verify cable placement and integrity. Verify basic receiver modulefunctionality by injecting an infrared signal (for example, a Bose Wave Radio remote) and measur-ing pin 3 of J1000 on an oscilloscope. To test basic transmitter functionality, verify diode conductionand orientation, then issue TAP commands to control a Bose Wave Radio.
Troubleshooting customer complaints regarding control integration exceeds the scope of thisdocument.
14
Theory of Operation
3.3.2.6 IR Key CodesThe following table describes the key codes capable of being generated by the built-in UEI Blasterchip:
Note: No IR sent.
TV CBL SAT VCRKey
Code#
Function Name T C S V
1 Power / Standby Power,Standby
Power,Standby
Power,Standby
Power,Standby
2 Digit 1 Digit 1 Digit 1 Digit 1 Digit 1
3 Digit 2 Digit 2 Digit 2 Digit 2 Digit 24 Digit 3 Digit 3 Digit 3 Digit 3 Digit 35 Digit 4 Digit 4 Digit 4 Digit 4 Digit 46 Digit 5 Digit 5 Digit 5 Digit 5 Digit 57 Digit 6 Digit 6 Digit 6 Digit 6 Digit 68 Digit 7 Digit 7 Digit 7 Digit 7 Digit 79 Digit 8 Digit 8 Digit 8 Digit 8 Digit 810 Digit 9 Digit 9 Digit 9 Digit 9 Digit 911 Digit 0 Digit 0 Digit 0 Digit 0 Digit 012 Enter Channel Enter Channel Enter Channel Enter Channel Enter13 -/-- , / 10+ -/--, 10+ -/--, 10+ -/--, 10+ -/--, 10+14 Previous
ChannelPreviousChannel
PreviousChannel
PreviousChannel
PreviousChannel
15 20+ 20+ 20+ 20+ 20+16 Channel Up /
Program UpChannel Up Channel Up Channel Up Channel Up
17 Channel Down /Program Down
Channel Down Channel Down Channel Down Channel Down
18 TV/VIDEO TV/VIDEO A/B TV/DSS,TV/SAT
TV/VCR
19 Input ---- ---- ---- Input Select20 Play ---- ---- ---- Play21 Stop ---- ---- ---- Stop22 Fast Forward ---- ---- ---- (Search)
Forward23 Rew ---- ---- ---- (Search)
Reverse24 Pause ---- ---- ---- Pause25 Guide Guide Guide Guide ----26 Exit Exit Exit Exit ----27 Select Select Select Select ----28 Up Up Up Up ----29 Down Down Down Down ----30 Left Left Left Left ----31 Right Right Right Right ----32 Record ----- ----- ----- Record
15
Theory of Operation
4.0 Audio Electronics
The AV28 is a 2-Zone audio system, meaning that users can simultaneously listen to one audiosource in one room and a second audio source in another. Therefore, much of the audio pathhardware is split into two sections: Zone 1 hardware and Zone 2 hardware.
Furthermore, the media center outputs each zone’s audio content in two different forms: analogand digital. The analog outputs are standard left/right, 2Vrms (max) signals similar to those foundon past Bose® products. Some of these outputs are variable level, with volume control cells inseries with them. Other analog outputs are fixed level, and remain at the 2Vrms (max) level, re-gardless of the user’s volume setting. Examples of variable outputs would be the headphoneoutputs and the analog left/right signals on the Speaker Output mini-DIN connectors. The only fixedanalog outputs are the Record Out left and right signals. See the diagrams, below.
The digital outputs are serial digital audio data streams in S/PDIF format. These output streamscontain the same audio source material as their analog counterparts in each Zone, but the left/rightinformation has been digitized and combined into a single datastream. The S/PDIF outputs, how-ever, may send either 2-channel (PCM) audio, or bursts of compressed multichannel audio (in AC-3, AAC, MPEG-2, MP-3, or DTS formats). The amplitude information within the S/PDIF streamsnever varies with volume level; instead, speakers receiving the streams will perform the volumecontrol function.
There are both analog and digital options for all AV28 audio inputs, as well. A simplified diagram ofthe audio path would therefore be:
U303CS4224
Z1 Codec w/Volume Control
Internal AnalogAudio Sources
(Tuner, DVD 2-ChannelMixdown)
U201TEA6422
ANALOG MUX(Selects the desired
analog inputfor each Zone)
Zone 1Speaker Output
(Variable)
Zone 2Speaker Output
(Variable)
Zone 1Headphone Output
Zone 1Record Output
(Fixed)
External AnalogAudio Sources
(TV, VCR, AUX, Tape)
U403CS4224
Z2 Codec w/Volume Control
DVD-ROMPlayback
(DVD, CD)
U501CS8415
S/PDIF MUX(Selects the
desiredS/PDIF input)
Zone 1 DigitalS/PDIF Output
Zone 2 DigitalS/PDIF Output
External DigitalAudio Sources
(TV, VCR, AUX, Tape)
Record DigitalS/PDIF Output
U1CS98KDVD
DECODER
U306CS8405
Z1 S/PDIFXMTR
U406CS8405
Z2 S/PDIFXMTR
ATAPIPORT
16
Theory of Operation
Analog audio sources to be played in Zone 1 or Zone 2 are selected by U201, the TEA6422 analogMUX IC. The chip has separate left/right output pairs for each zone, and is controlled by U1 via theserial I2C interface. Its outputs are fed into the Zone1/Zone2 audio codecs (U303 and U304).
The codecs first digitize the analog signals using onboard 24-bit A/D (analog to digital) converters.The digitized result (in I2S format) is then simultaneously fed out to the Zone1/Zone2 S/PDIFtransmitters (U306/U406) and back into the codecs. Once back in the codecs, signals are con-verted back to analog via 24-bit DAC’s (digital to analog converters), passed through onboardvolume control cells, then outputted once again as left/right signal pairs. U305 and U405 formdifferential amplifiers that increase the codec audio outputs to a full-scale level of 2Vrms, and filter-out unwanted high-frequency digital noise. The resulting analog signals feed the headphone out-puts as well as the Zone 1 and Zone 2 speaker outputs. Volume control levels are set by U1 viathe I2C interface. Zone 1 signals pass through a set of mute transistors, Q300 through Q304,which quiet the Zone 1 speaker outputs when the headphones are plugged-in.
The same I2S signals which feed the Zone 1 S/PDIF transmitter (U306) also feed U202, a CS4340DAC. This DAC creates the fixed-level analog signals sent out the analog left/right Record Outputs.
A set of logic gates, U302, U304, U402 and U404 (74LCX157 Quad 2-Input Digital MUX chips) areused to route I2S signals (consisting of a Data line, Master Clock, L/R Frame Clock and Bit Clock)between the codecs and the S/PDIF transmitter chips. These digital MUX chips are controlled byU1 using a set of individual logic lines (where a +3.3V level selects the “B” inputs, and a 0V levelselects the “A” inputs). These logic lines have various schematic names, and are connected to theSELECT pin of each 74LCX157. These same chips route the digital audio signals from U1 (also inI2S format), discussed next.
Digital audio input streams are selected by U501, the S/PDIF MUX chip, before being funneled intoU1, the CS98K DVD Decoder IC. In this way, the CS98K’s onboard DSP can decode the desiredstream if it happens to be in a compressed audio format (AAC, AC-3, MPEG-2, MP3, DTS orMLP). U501 selects the desired stream based on I2C commands from U1.
Streams played from discs in the DVD-ROM drive are clocked out of the CS98K at a sample rateequal to the rate at which they were recorded. CD audio (CD-DA) discs all require a 44.1kHzsample rate. Audio from DVD video discs typically requires a 48kHz sample rate, but may useother rates. External streams received through the S/PDIF MUX will need to be clocked out of theCS98K at a sample rate synchronous to the clock encoded into the stream (may be many differentrates). The CS98K’s AC-97 port is hard-wired to an external 44.1kHz clock. Therefore, streamsclocked out of this port only support a 44.1kHz sample rate. The CS98K’s PCM output ports sharea single clock rate which can be set by U1 to any desired frequency (AUD-DO_0, AUD-DO_1,AUD_DO_2 and AUD_DO_3, sheet 8 of the schematics, are the data lines).
17
Theory of Operation
The AV28 Signal Routing and Clocking Diagram, which follows, shows the fully-detailed audiopath, including clocking information. The legend at the bottom identifies which signals are analog,which are digital, and what the relevant clock rates/sources are.
AV28 AUDIO PATH:Signal Routing and Clocking
U1
S/PDIFSOURCES
U304
74HC157MUX
74HC157MUX
U402
ZONE 1 OUT
ZONE 2 OUT
AUX EXT
OPTICAL EXT
TAPE EXT
VCR EXT
TV EXT
U501
0
1
2
3
4
5
6
OUT
CS8415S/PDIFMUXAND
RCVROPTICAL
S/PDIFRCVR
J501
ANALOG L/R
I2S: U303 PROVIDES CLOCK (ALWAYS 44.1 kSPS)
I2S: U1 OR U501 PROVIDES CLOCK (SOURCE DEPENDENT)
I2S: U303, U1 OR U501 PROVIDES CLOCK
S/PDIF: UP TO 96 kSPS
CS8405S/PDIFXMTR
U406
74HC157MUX
U404ZONE 2S/PDIF
DIGITALOUTPUT
J701
OPTICALS/PDIF
DRIVER
S/PDIFRECORDOUTPUT
OPTICALS/PDIF
RECORDOUTPUT
VCR EXT
AUX EXT
TAPE EXT
TUNER
DVD MIXDOWN
TV EXT
U201
TEA6422ANALOG
MUX1
2
3
4
5
6
1
2
3
ANALOGL/R
SOURCES
CS4340DAC
D/A
U503
D/A
CS4340DAC
U202
U306
CS8405S/PDIFXMTR
U302
74HC157MUX
U303
ZONE 2ANALOG
L/RVARIABLEOUTPUT
ZONE 1ANALOG
L/RVARIABLEOUTPUT
ANALOGL/R
RECORDOUTPUT
ZONE 1S/PDIF
DIGITALOUTPUT
ANALOGHEADPHONE
OUTPUTNJM4556BUFFER
U205
U1CS98K
(LS500C)DVD
DECODER
AC-97 PORT(CONFIGURED AS I2S)
I2SAUDIOPORT
D0
D1
D2
D3
IN
ATAPIXFACE
DVD ROM
74HC157MUX
U502
74HC157MUX
U505
CS4224CODEC
A/DVOLUME
CELLD/A
U403
A/D D/AVOLUME
CELL
CS4224CODEC
Port supports many samplerates (but D0-D3 and INalways share the same rate).
Port must alwaysrun at 44.1kHzsample rate(clocked by U303).
18
Theory of Operation
Although the AV28 is a 2-zone audio system, as discussed, the clocking limitations of the hard-ware occasionally restrict which forms of audio can be simultaneously played out the two zones ata given time. In these situations, Zone 1 (assumed to be the primary zone) would be allowed toplay the digital source while Zone 2 would be downgraded to playing an analog input source. Forexample, a user could not play a DVD video disc in Zone 1 and simultaneously listen to the exter-nal AUX digital input source in Zone 2, since the CS98K’s PCM output port can only clock out asingle digital stream at a time. The system, in this case, would use the CS98K to decode the DVDvideo disc’s audio for Zone 1, and would select the external AUX analog inputs to play in Zone 2.
The following tables describe the resulting audio formats when playing each combination ofsources simultaneously in the two zones:
As shown, for consistency, Zone 2 speaker outputs generally only plays the analog external inputs(AUX, TAPE, VCR and TV). The exception here is when both Zone1 and Zone2 are listening to thesame external input; in this case, both zones will play the external digital inputs (if present), toensure that audio-path delays are identical for each zone.
When an external input source (AUX, TAPE, VCR or TV) is chosen for Zone1, the AV28 automati-cally checks for the presence of a digital input stream and plays it if it exists. If it doesn’t, the AV28will default to playing the analog inputs.
TYPE OF AUDIO INPUT ALLOWED TO PLAY OUT EACH ZONE(Zone 1 result shown on top in bold, Zone2 result shown on bottom in italic)
Source Selected for Zone 1
Off AM FM Tape AUX VCR TV DVD MP3CD CD
OffOffOff
AnalogOff
AnalogOff
DigitalOff
DigitalOff
DigitalOff
DigitalOff
DigitalOff
DigitalOff
DigitalOff
AMOff
AnalogAnalogAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
FMOff
AnalogAnalogAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
TapeOff
AnalogAnalogAnalog
AnalogAnalog
DigitalDigital
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
AUXOff
AnalogAnalogAnalog
AnalogAnalog
DigitalAnalog
DigitalDigital
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
VCROff
AnalogAnalogAnalog
AnalogAnalog
DigitalAnalog
DigitalAnalog
DigitalDigital
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
TVOff
AnalogAnalogAnalog
AnalogAnalog
DigitalAnalog
DigitalAnalog
DigitalAnalog
DigitalDigital
DigitalAnalog
DigitalAnalog
DigitalAnalog
DVDOff
DigitalAnalogDigital
AnalogDigital
AnalogDigital
AnalogDigital
AnalogDigital
DigitalAnalog
DigitalDigital
MP3CDOff
DigitalAnalogDigital
AnalogDigital
AnalogDigital
AnalogDigital
AnalogDigital
AnalogDigital
DigitalDigital
Sou
rce
Sel
ecte
d fo
r Z
one
2
CDOff
DigitalAnalogDigital
AnalogDigital
AnalogDigital
AnalogDigital
AnalogDigital
AnalogDigital
DigitalDigital
Key: Zone 1 performance hasbeen downgraded to
support Zone 2.
Zone 2 performance hasbeen downgraded to
support Zone 1.
Not allowed because the tuner cannot playAM and FM simultaneously, or becauseonly one disc can be in the tray at once.
19
Theory of Operation
A hardware issue was found with the CS4224 codecs whereby audio passing through its A/Dconverter emerges with left/right sample pairs mismatched; specifically, with left samples laggingright samples by one sample clock. In other words, left/right sample pairs coming out of the ADCtogether were not sampled together (right was sampled before left). The codec’s DAC section hasthe reverse problem: left samples will emerge ahead of the associated right samples. The net resultof this hardware bug is that audio passed fully through the codec (from ADC input to DAC output)will have no improper left/right delays. However, audio passed only partially through the codec(only the ADC section, for example) will have left/right pairs emerge slightly out of phase. Thisslight phase difference will have no noticeable effect when played through conventional stereospeakers; however, slight spatial anomalies might be noticed if played through a surround-soundsystem.
When playing-back an audio stream which was recorded using pre-emphasis (common in earlierCD’s, for example), the media center’s analog Record Outputs will not properly apply de-emphasis,as follows. The resulting audio will have more treble than desired:
Playing-Back Pre-Emphasized Audio Streams
Source Playing Zone 1S/PDIF
NetworkOutput
(Used forCobalt II)
Zone 1VariableAnalogOutput
(Used forCobalt I)
AnalogRecordOutput
S/PDIFRecordOutput
Headphone
Output
Zone 2S/PDIF
NetworkOutput
(Used forCobalt II)
Zone 2VariableAnalogOutput
(Used forCobalt I)
Internal CD-DA O.K. O.K. De-Emphasisis Missing
O.K. O.K. O.K. O.K.
External S/PDIFSources
O.K. O.K. De-Emphasisis Missing
O.K. O.K. O.K. O.K.
CS4224 Hardware Bug: Effect on Postman Console Audio OutputsSource Playing Zone 1
S/PDIFNetworkOutput
(Used forCobalt II)
Zone 1VariableAnalogOutput
(Used forCobalt I)
AnalogRecordOutput
S/PDIFRecordOutput
HeadphoneOutput
Zone 2S/PDIF
NetworkOutput
(Used forCobalt II)
Zone 2VariableAnalogOutput
(Used forCobalt I)
Internal DVD Disc Left/RightO.K.
Left/RightO.K.
RightLeads Left
Left/RightO.K.
Left/RightO.K.
Left/RightO.K.
Left/RightO.K.
Internal CD-DA Left/RightO.K.
Left/RightO.K.
RightLeads Left
Left/RightO.K.
Left/RightO.K.
Left/RightO.K.
Left/RightO.K.
Internal MP3 Disc Left/RightO.K.
Left/RightO.K.
RightLeads Left
Left/RightO.K.
Left/RightO.K.
Left/RightO.K.
Left/RightO.K.
Internal AM/FM RightLeads Left
Left/RightO.K.
RightLeads Left
RightLeads Left
Left/RightO.K.
RightLeads Left
Left/RightO.K.
External S/PDIFSources
Left/RightO.K.
Left/RightO.K.
RightLeads Left
Left/RightO.K.
Left/RightO.K.
Left/RightO.K.
Left/RightO.K.
External AnalogSources
RightLeads Left
Left/RightO.K.
RightLeads Left
RightLeads Left
Left/RightO.K.
RightLeads Left
Left/RightO.K.
20
Theory of Operation
5.0 Video Electronics
Video Block Diagram
Video signals may be generated internally (by U1) or passed-through from a set of external(VIDEO INPUT) connectors. Internally generated signals include DVD playback and On ScreenDisplay (OSD) signals. OSD menus are accessed by pressing the SETTINGS button on the RFremote. When not playing back a DVD or generating an OSD, the media center defaults to passing-through external video signals, much as a VCR does. The media center is capable of being con-nected to either NTSC or PAL televisions, where the desired format is selected via the OSD:
NTSC (National Television Standards Committee (USA) or National Television SystemsCommittee). A television standard with 60 fields per second, 30 frames per second, and 525 linesper frame. Variations of the standard include NTSC-M. A size used to digitize NTSC is 640x480pixels. This standard is used in America and parts of Japan.
PAL (Phase Alternation Line). A television standard with 50 fields per second, 25 frames persecond, and 625 lines per frame. Variations of the standard include PAL-B/G. A size used to digi-tize PAL is 768x576 pixels. This standard is used in parts of Africa, Australia, parts of Europe, andin the U.K.
The video interface drives several kinds of video digital to analog converters to generate theanalog video monitor drive signals. U1 generates a standard ITU R.BT656 digital video datastream with embedded synchronization. This standard uses an 8 bit bus, with interleaved Y, Cr, Cbdata. Synchronization information is embedded in the data stream, and exclusively uses values of00 and FF (hex). Y values are from 1 to 254, with 1 being black. C values are from 1 to 254, with128 being no chroma. The standard document should be consulted for further details on this bus.
The video encoder (essentially a video digital to analog converter), U601 on sheet 6 of the sche-matic, is a 44 pin quad flat pack, containing extensive video processing circuitry. The data sheetfor this part (number CS4955) shows the block diagram and signal processing circuitry inside thechip. The chip has many programmable registers inside, to set different operation modes, etc.These registers are set by the main processor over a serial I2C bus (pins 32 and 33).
The CS4955 receives the ITU R.BT656 data bus, decodes the synchronization and separates theY, Cr, and Cb values into separate data streams. The three channels of video data are processedappropriately, and sent to the digital to analog converters. Composite video is generated at pin 44,S-video Y and C are generated at pins 48 and 47, and RGB or YCrCb are generated at pins 39,40,and 43. The Composite video and S video are paralleled on the circuit board with the RGB (orYCrCb) signals. The appropriate DACs are enabled by internal control circuitry, commanded by themain processor, depending on the mode selected by the user. This allows either Composite and S-video, or Component video, to be placed on the output jacks of the AV28 console.
Amp
NJM2267
U1CS98000
CS4988Video
EncoderU601
NJM2284VideoSwitchU602
Digital Analog
ExternalVideo
U603, U604
VideoOutput
21
Theory of Operation
The 3 video signals are sent to the internal/external video MUX, U602, a NJM2285 chip. This chipwill select either the internal or external set of video signals to be sent on further through the videochain. The selection is made by the control pins 2, 7, and 12, driven by transistor Q601, a levelshifter driven by the main processor. No matter which mode the user selects, Composite and S-Video, or Component video, the same circuitry is used in the video chain.
After internal/external selection, the three video signals are sent to the output video drivers, U603and U604. These are NJM2267 chips, with dual video channel capability. Each channel contains aclamp circuit on the input, which does a DC restore on the video signal by clamping the negativesync tip of the video signal to a DC voltage. The output driver drives the video signal through a330uF capacitor (100-220uF on early units), and a 75-ohm resistor. This ensures equipmentcompatibility even if there are DC differences between the AV28 and the driven equipment. The 75-ohm resistor provides reverse cable termination for best signal integrity. Video sent through a330uF capacitor would have low frequency drop-off, causing sag in the video signal. This is cor-rected by the sag compensation pins of the NJM2267s, by sampling the video signal past thecapacitors, and correcting of any sag that occurs. This prevents synchronization problems withvideo monitors that may otherwise occur.
For the Cr and Cb signal in component mode, and the C signal of the S-video signal, there is nosynchronization pulse for the input clamp of the 2267s to clamp to, which could distort the negativetips of these chrominance signals. For these signals, the transistors Q601 and Q602 are turned onby the port pins of U601, supplying enough DC voltage to the signal to raise them above the clamplevel, preventing any clamping action on them.
The CS4955 must receive a 27 MHz signal from the clock oscillator, with an accuracy of +- 1350-hertz. This frequency is phase lock-looped inside the CS4955 to generate the 3.579545 MHz colorsubcarrier for the composite video signal, and must be of high accuracy so that television monitorscan lock onto it and be able to decode color information to display.
6.0 Tuner Electronics
6.1 FM Tuner
The FM RF signal is provided by the F connector, J102, and goes to the FM front-end module. Theantenna supplied with the media center is the standard Bose® FM dipole antenna. Contained withinthe FM front-end is a tuned RF amplifier, FM local oscillator and mixer. The 10.7 MHz IF outputsignal (pin 7 of the module) passes through a 10.7 MHz ceramic filter, CF101, to a FM IF amplifier,and then back through a second ceramic filter, CF102. Transistor Q301 and related circuitry formthe FM IF amplifier that produces about 15 dB of voltage gain and provides the proper impedancematching for ceramic filters CF101 and CF102. These FM IF filter stages reject unwanted FMstations and noise.
The output signal from CF102 is fed to the LA1837 AM/FM detector IC, U101. This device containsthe FM IF limiter, FM detector, FM stereo MPX decoder, S-meter circuitry which is used for seekprocessing, and most of the AM circuitry. The FM IF input signal to the LA1837 goes throughseveral gain/limiter stages and then to a single-tuned, coil-based discriminator circuit. The discrimi-nator coil, T103, is adjusted for minimum second harmonic audio distortion. The recovered FMcomposite signal appears on pin 23 of U101.
22
Theory of Operation
The composite audio signal is filtered by C124 and fed back into the LA1837 on pin 22. The valueof C124 affects FM stereo separation performance. Stereo MPX decoding is also performed byU101 and the decoded left and right output signals are produced on pins 16 and 17. The pilot PLLVCO is completely internal to the LA1837 detector IC, not requiring an external 456 kHz ceramicresonator as in the older LA1836 and LA1851-based designs. The pilot PLL loop filter is formed byC120, R118, and C122 on pin 14.
Capacitors C132 and C133 and the internal resistance of the LA1837 set the FM de-emphasis. Fora US unit the capacitor values are set to produce 75-uSec de-emphasis, and for Europe/Japanthey are set to produce 50-uSec de-emphasis. MPX filters, T104 and T105, reject the residual 19kHz pilot tone and 38 kHz sub-channel demodulation components.
The FM and AM S-meter signals, which are at pin 11 and 12 of the LA1837 respectively, areanalog voltage levels that are proportional to the FM IF/AM RF input signal levels. These signalsare used to control the FM stop level, FM force-mono level, and AM stop level. The nominal FMstop/force-mono levels are:
Both S-meter signals are connected to a 2-input 6-bit analog to digital converter that resides in theLC72144 PLL IC, U103. During factory final test booth tuner alignment the appropriate test signallevels are injected into the UUT and the resultant ADC values for stop and force-mono levels arestored in the Flash memory of the main board. Level scaling is applied to both the AM and FM S-meter signals so that these signals do not saturate the dynamic range of the 3.3 V full scale A/Dconverter.
6.2 AM Tuner
The signal from the external AM loop antenna enters through the 2.5 mm AM jack, J300, and is fedto the AM front end module, T101. This module contains the varactor-tuned RF and Local Oscillator(LO) tracking circuit. This part is pre-tuned by the manufacturer for proper alignment in this circuitwith AM antenna, and is further adjusted during factory alignment, if necessary. The RF tunedoutput appears on pin 12 and is fed to the AM buffer FET transistor Q103. This buffered output issent to pin 27 of U101 which contains the AM RF amplifier, mixer, IF amplifier, AM detector, andAM S-meter circuitry. The 450 kHz AM IF output signal that appears on pin 2 is filtered by the IFfilter, T102, and fed back into the IC on pin 4. The AM IF signal is demodulated by the LA1837 andthe audio output is sent to pins 16 and 17, which are the left and right outputs.
The AM seek stop processing and factory alignment is performed in a similar fashion to FM modeprocessing. The S-meter voltage that corresponds to the desired AM stop level is stored duringfactory final booth tuner alignment in the main board Flash memory.
The nominal AM stop level is 56 dBuV/m at 1080 kHz.
Parameter Frequency LevelFM Seek Stop 98.1 MHz 30 dBfFM Force Mono 98.1 MHz 40 dBf
23
Theory of Operation
6.3 Phase-locked Loop Tuning
The AM and FM local oscillators are controlled by the LC72144 PLL IC, U103. Control from themain board selects the AM or FM band and the particular frequency. The 7.2 MHz crystal, Y102, isconnected across an inverting amplifier inside U103 to form an accurate and stable crystal oscilla-tor. The 7.2 MHz oscillator is divided down to produce a 12.5 kHz reference frequency in FM modeand 10 kHz reference frequency in AM mode. U103 divides down the AM or FM LO and comparesit to the appropriate reference frequency, generating an error signal on pin 21. This error signal isintegrated by Q208, Q207 and associated components, producing the tuning voltage at the collec-tor of Q207. C150, C146, R146, and R217 control the gain and pole-zero locations of this activelead-lag filter
The AM tuning voltage is further filtered by R108 and C106 and is fed to pin 14 of the AM front end,T101. The tuning voltage varies the capacitance of the varactor diodes, which in turn tunes the AMantenna and the AM LO. Similarly, in FM mode, the tuning voltage is filtered by R148 and C151 andfed to the FM front end. As in the AM case, the tuning voltage is fed to varactors which tune the LOfrequency and RF filtering.
Both the PLL IC and the LC72722 PLL IC are controlled via a CCB bus interface. This is a bidirec-tional interface that sends control information, such as band select and frequency control, to thePLL from the main board. This bus also sends status information, such as digitized S-meter valueand FM mono/stereo status, from the PLL to the main board controller
6.4 RDS OperationThis feature is only implemented in the European version of the AV28 media center.
The LC72722 Radio Data System (RDS) decoder IC, U102, is a single-chip system IC that imple-ments the signal processing required by both the European RDS standard and US RDBS system.RDS/RDBS systems can send digital information over the airwaves along with the standard FMsignal by adding a digitally modulated 57 kHz subcarrier to the normal FM composite signal. TheLC72722 includes a bandpass filter, demodulator, synchronization, and error correction circuits.The input (pin 2) to the RDS IC comes from Q104, which buffers the FM composite signal at pin 23of the LA1837. The timebase for the decoder is a crystal oscillator formed by the 4.332 MHzcrystal, Y101, the inverter internal to the IC across pins 12 and 13, and the two shunt capacitors,C138 and C139. Control of the RDS IC is achieved by using the same CCB bus interface used forthe PLL IC.
6.5 Tuner Software
Software that controls the AM and FM tuner resides on the Main PCB.
The software that controls the FM tuner has provisions for an IF offset to optimize tuner perfor-mance for a given range of IF filters. The possible values of IF offset are -25kHz, 0, and +25kHz.The software measures (“counts”) the IF frequency, and this offset is added to the count. In thefinal console test, the value that minimizes THD at 98.1 MHz for an un-modulated 50dBF signal ischosen and stored before other stop levels are set.
It should be noted that the stop levels for the tuner are also stored on the main board; the implica-tion of this is that every time a different tuner board is mated with a main board, the stop levelsmust be reset due to board-to-board component variations.
24
Theory of Operation
7.0 Additional Electronics in the Console
7.1 Vacuum Fluorescent Display
A VFD module is installed in the front of the console. The module contains a microcontroller withmasked font tables, as well as built-in switching power supply/inverter and driver IC’s for control-ling the VFD glass. Communication to the VFD is serial through J103; see sheet 2 of SD254135.The protocol requires both clock (VFD_CLOCK) and data (VFD-DATA) lines, is single-directiononly, and runs at about 4800 baud. Q101 and Q106 are used to power-down the higher-currentsections of the VFD after the console has been off for about 10 seconds (reducing power con-sumption and ensuring that the VFD is held in a reset state when the console is off).
7.2 DVD-ROM Drive
The DVD-ROM drive is a Toshiba SD-M1502 (soon to change to a SD-M1612). The drive is ca-pable of playing DVD-video discs (including CSS decoding), CD-ROMs, and audio CDs. An ATAPIcable for data and separate power cable connect the drive to the Main PCB (see sheet 2 ofSD254135). Q103 is used to reset the drive’s built-in microcontroller upon console power-up. Thedrive remains active (in a paused state) for about 5 minutes after playing a CD/DVD to allow acustomer to return resume playback from the same location on the disc; after that, the drive is putinto a low-current standby mode via software command.
7.3 Console Keypad
A nine-button keypad is located next to the DVD-ROM drive tray. Six signals connect U1 to thekeypad: three signals represent the keypad rows, and three signals represent the keypad col-umns. U1 identifies button presses by sequentially driving the KEYOUT lines (which activateindividual rows of keys) and reading-back the KEYIN lines (which have 75K pullup resistors insideU1). If a button is pressed, the KEYIN line connected to that column of keys will be high (3.3V).See SD256140.
7.4 Headphone Driver
The Headphone PCB holds the headphone jack itself, J200, and two inductors used to reduceemissions and limit incoming ESD transients (L2001 and L2001). Pin 6 of the headphone jack isused to sense when headphones are plugged in: when a customer inserts a headphone plug intoJ200, pin 6 becomes shorted to ground. This pulls the HP-SENS line (normally pulled high byresistor R242 on the Main PCB) to ground, alerting U1. U1 then mutes the appropriate audiooutputs. The headphone audio drive amplifier, U205, resides on the Main Board. This amp is config-ured as a voltage follower (providing no signal gain).
Console Button Row ColumnON/OFF Top (driven by KEYOUT2, J102-3) Left (read by KEYIN2, J101-6)SOURCE Top (driven by KEYOUT2, J102-3) Center (read by KEYIN1, J101-5)VOLUME UP Top (driven by KEYOUT2, J102-3) Right (read by KEYIN0, J101-4)ALL OFF Center (driven by KEYOUT1, J101-2) Left (read by KEYIN2, J101-6)ENTER Center (driven by KEYOUT1, J101-2) Center (read by KEYIN1, J101-5)VOLUME DOWN Center (driven by KEYOUT1, J101-2) Right (read by KEYIN0, J101-4)OPEN/CLOSE Bottom (driven by KEYOUT0, J101-1) Left (read by KEYIN2, J101-6)ERASE Bottom (driven by KEYOUT0, J101-1) Center (read by KEYIN1, J101-5)STORE Bottom (driven by KEYOUT0, J101-1) Right (read by KEYIN0, J101-4)
25
Theory of Operation
7.5 TV Power Detector
The infrared power command for televisions toggles the power state of the television; in order toautomatically turn a customer’s television on when a video source is selected, the power state ofthe TV must be known to determine if sending a power toggle command is necessary. The circuitdetects the presence of the television’s horizontal sweep frequency; standard NTSC and PALmonitors use 15750 Hz, and line-doubled, HDTV, or 480p monitors use 31500 Hz.
An external dongle plugs into the tuner board at J105; the dongle contains 25 turns of wire inside aplastic enclosure. When placed properly (at the back of the unit near the deflection coils) on thetelevision, the dongle will output 20~200 mV of signal.
The TV power detector circuit is on the tuner board. See sheet 3 of SD256131.
The power detection circuit is built around U303, an NJM3403 quad op-amp IC. C328 and L302form a highly peaked low-pass filter about 15750 Hz; C324, C325, and L303 form a similar filterabout 31500 Hz. The filters boost the voltage of their passbands about 10 times. The outputs ofthese filters are fed to active band-pass filters constructed of sections of U303; the active filtershave a Q of 5 (allowing for component variation) and a gain of 20. The outputs of these activeband-pass filters (if present) are rectified and summed by D302. D303 performs a voltage shiftequal to that of the rectifier so that a reference voltage for the comparator can be generated withdiode drop compensation.
The remainder of U303 serves as a comparator and a Schmidt trigger. The comparator comparesthe rectified signal with 0.5V; if either sweep frequency present, the comparator output will go high.The Schmidt trigger section, designed to minimize chatter at the circuit output, drives the TV_ONsignal to U1 to indicate the detected power state of a television.
26
8.0 LS28/35 Bass Module Issues
The LS28/35 bass module is sold as a system with the AV28 media center and is mentioned forreference. Refer to the Lifestyle® 28 and 35 Digital Acoustimass® Powered Speakers servicemanual part number 264562.
8.1 LEDs
The amber and green LEDs on the DSP board serve to provide information about the status andoperation of the speaker’s DSP board. The following is a summary of the various possible states ofthe LEDs and a functional description of the state(s) represented.
• Green LED: The green LED serves a dual purpose: general system health and serial datareceived. The green LED will blink once per second with a 50% duty cycle (i.e. on for ½ second,off for ½ second) if the system booted and is running normally. If the unit is in the SmartSpeaker“Off” condition, the green LED will blink briefly (approx. 0.1s ON time) once every 5 seconds.
• The green LED will also toggle whenever a serial data byte is received. This will interrupt thenormal 1-second blink rate. The green LED blinking faster than 1 Hz usually indicates that it isreceiving serial communications.
• Amber LED: The amber LED serves to signal 3 conditions: power applied/boot status, S/PDIF status and clipping status. When power is first applied the amber LED will light briefly. If thePROM FLASH checksum is incorrect or hardware does not pass power-on self test, the greenLED and amber LED will alternately blink at approx. a 5 Hz rate. If the green LED is blinking at itsnormal, 1 Hz rate, a blinking, 1Hz amber light indicates that there is no valid S/PDIF signal present:If the amber LED is off while the green LED is blinking normally, then valid S/PDIF is present andbeing received. Finally, the amber LED will briefly blink (in this case, only when valid S/PDIF ispresent) when the satellite amps are clipping. This should only occur when playing the system atextremely high levels.
8.2 DIP Switches
The LS28/35 bass module has a set of four DIP switches, accessible from the back connectorarea. Three of these switches (switches 1, 2 and 3) set the Room Code of the speaker, and mustmatch the three Room Code DIP switches on the remote control (switches 7, 8 and 9) used withthat speaker. Switch 4 on the speaker is only used in manufacturing/test to enter TAP mode, andshould nominally be left DOWN.
9.0 Legacy Speaker Issues
9.1 Protocol Setup
The AV28 media center supports legacy (existing) Bose® powered speaker systems in both Zone1 and Zone 2. However, these systems (AM25P/30P II digital bass module and LSA) require theconsole to send control commands using the older CD-5 Serial Data Port Protocol, which is NOTthe default smart speaker protocol used by AV28 media center. To enable this older protocol, theuser must use the OSD (Settings/Setup) menus to change either the Zone 1 Speaker Protocol orZone 2 Speaker Protocol from “Normal” to “Legacy” mode.
Theory of Operation
27
9.2 Addressing
The older CD-5 smart speaker protocol allowed addressing up to four speakers (“rooms”) perzone, referred-to as Speakers A, B, C and D. Similarly, older Bose® Lifestyle® remote controls hadfour DIP switches used for selecting which of these speakers should be controlled. All AM25P/30PII digital bass module powered speakers are hard-wired as smart speaker address A. All LSA’sare hard-wired as address B.
The AV28 media center's RF remote has three Room Code DIP switches (not implemented atprinting of this manual), allowing up to seven speakers per zone to be addressed, referred-to asRooms A through G. Since this addressing scheme is different than that used by older systems, atranslation table is required to understand how to use AV28 media center’s RF remote whencontrolling AM25P/30P II digital bass module or LSA (when a zone is set for legacy mode), asfollows:
The table shows that up to three AM25P/30P II digital bass module’s and three LSA’s (labelled #1,#2 and #3 here) can be addressed by a AV28 media center remote control. Note that a specialadapter box would be required to actually hang more than one AM25P/30P II digital bass moduleand one LSA off each zone of the AV28 media center . *To control a single AM25P/30P II digitalbass module, it is recommended that the user set switches 7, 8 & 9 on the user’s AV28 RF remoteto 010 (Room C, where 0=down and 1=up). To control a single LSA, it is recommended that a userset these switches to 110 (Room G).
Theory of Operation
Postman RF Remote Room Switches for Legacy ModePostman Remote's Room
DIP Switch Pattern(switches 7,8&9)
Resulting CD5 SmartSpeaker Message's
Header
Legacy Speaker that the ConsoleAllows This Remote to Control
000 (Room A) 0x31 Cobalt I #1001 (Room B) 0x35 Cobalt I #2*010 (Room C) 0x39 Cobalt I #3011 (Room D) 0x3D All Rooms100 (Room E) 0x32 LSA #1101 (Room F) 0x36 LSA #2
*110 (Room G) 0x3A LSA #3111 (All Rooms) 0x3E All Rooms
28
10.0 Software
10.1 FLASH Update Capability
The software in the AV28 media center is stored in FLASH. During boot, the software is decom-pressed from the FLASH to the DRAM, where it is executed. U1 can update the contents of theFLASH, so the software is field upgrade-able. Additionally, the console can update the FLASHwhere the DSP stores its code in the LS28/35 bass module using the speaker cable.
10.2 FLASH Update Procedure
Note: A software update disc can be obtained by calling Bose service. If you have a softwareupdate disc, check the service intranet site or call Bose service to make sure you have the latestversion.
10.3 Software Version
To find out which version of software is loaded in a console, first press the [ALL OFF] button on thekeypad. Next, press and hold the [STORE] key and press the [ENTER] key one time. The soft-ware version is displayed on the VFD in the following format: SV C:(dateCode):(version)-(build) –for example, SV C:092501:1.0-0125 would indicate Version 1.0 code made from build #125 onSeptember 25, 2001.
10.4 User Settings Stored in FLASH
Certain user settings (tuner presets, OSD settings like preference for Film-EQ in a particularsource) and tuner calibration coefficients are stored in a protected area of FLASH. These are notoverwritten when the software is updated. There are two important consequences:
• Sending an FU [Flash Update] command via ETAP will erase the user settings (but not thetuner calibration).
• After setting any preferences (house code, tuner presets, OSD settings), you must cycle thepower on and off with the remote and wait a few seconds before unplugging the unit. When the unitis powered off by the remote, the user preferences set in that session are stored in FLASH.
Theory of Operation
29
Disassembly/Assembly(Refer to Figure 3)
1. Top Cover Removal
1.1 Remove the six screws (28) that securethe top cover (7) to the base (9).
1.2 Release the catch at the right rear cornerof the top cover. Lift off the top cover.
2. Top Cover Replacement
2.1 Align the top cover (7) with the base (9)and press down at the right rear corner tosecure the catch.
2.2 Replace the six screws (28) that securethe top cover to the base.
3. DVD/CD Assembly Removal
3.1 Perform procedure 1.
3.2 Pressing outward on the four tabs locatedon the base (9) at the bottom corners of theDVD/CD bracket (15), lift out the DVD/CDassembly (1).
3.3 Remove the two connectors from theDVD/CD assembly.
3.4 Remove the four screws (22) that securethe DVD bracket (15) to the DVD assembly.
4. DVD/CD Assembly Replacement
4.1 Align the DVD bracket (15) with the DVDassembly (1). Replace the four screws (22)that secure the DVD bracket to the DVDassembly. Refer to figure 3 for DVD bracketorientation.
4.2 Connect the two connectors to the DVD/CD assembly.Note: Make sure the ribbon cable connectorkey is on the top when inserting the connec-tor. Line up the connector to the pins on thereceptacle and gently push in. Do not forcethe connector or push on the connector at anangle. Damage to the pins may occur.
4.3 With the DVD/CD assembly (1) label sideup, align the tabs on the DVD/CD bracket(15) with the four tabs located in the base (9).Press downward on the corners of the DVD/CD assembly until all four tabs snap into place.
5. Tuner PCB Removal
5.1 Perform procedure 1.
5.2 Grasp the front edge of the tuner PCB (3)and lift up until it is at a 450 angle.
5.3 Grasp the tuner PCB bracket support(21), which is located under the tuner PCB,and pull it to the left slightly to clear theheadphone jack PCB. Then pull up andforward on the tuner PCB bracket support torelease the tuner PCB.
5.4 Remove the ribbon cable from connectorJ103.
6. Tuner PCB Replacement
6.1 Attach the ribbon connector to J103.
6.2 Align the posts on the tuner PCB supportbracket (21) with the three locator holes inthe base (9).
6.3 Holding the tuner PCB (3) at a 450 angle,align the two tabs located at the rear of thetuner PCB with the two cutouts located at therear of the base.
6.4 Lower the front of the tuner PCB until itrests on the tuner PCB support bracket.
30
Disassembly/Assembly(Refer to Figure 3)
7. Main PCB Removal
7.1 Perform procedure 5.
7.2 Disconnect the cables from J102, J103,J106, J213, and the DVD/CD mechanism’sribbon cable.
7.2 Release the main PCB (2) from the fourlocking tabs located on the base (9). Twolocated at the front and one located on eachside of the PCB.
7.3 Lift up the front of the main PCB and slideit forward and up.
8. Main PCB Replacement
8.1 Lower the rear of the main PCB (2) intothe base (9) so the connectors protrude outthe rear of the base.
8.2 Align the headphone jack PCB (2) withthe hole in the side of the base. The mainPCB (2) and tuner PCB support bracket (21)will secure the headphone jack PCB in place.
8.3 While applying rearward pressure on thePCB, press downward at the locations of thefour locking tabs; two located at the front andone located on each side of the PCB.
8.4 Connect the cables to J102, J103, J106,J213, and the DVD/CD mechanism’s ribboncable.
9. VFD Module Removal
9.1 Perform procedure 1.
9.2 Release the VFD module (6) from the twolocking tabs, which are located at the two topcorners of the VFD module. Pull up the VFDmodule.
9.3 Disconnect the cable from J103, locatedon the main PCB (2).
10. VFD Module Replacement
10.1 Connect the cable to J103, located onthe main PCB (2).
10.2 Slide the VFD module (6) into the VFDholder on the base until the two locking tabssnap into place.
11. IR PCB Removal
11.1 Perform procedure 1.
11.2 Lift up the bezel (41).
11.3 Release the IR PCB (2) from the lockingtab located on the left side of the IR PCB. Liftup on the IR PCB and then slide it to the left.
11.4 Disconnect the cable from J1000.
12. IR PCB Replacement
12.1 Connect the cable to J1000.
12.2 Slide the IR PCB (2) under the catch onthe right side.
12.3 While aligning the IR PCB with the twolocator guides, press down until the IR PCBsnaps into place.
13. Laser Current Measurement Access
13.1 Perform procedure 3.
13.2 Remove the four screws that secure thebottom cover of the DVD/CD assembly (1) toits chassis. Lift off the bottom cover.
13.3 Refer to figure 6 for the location of thelaser current measurement points and thelaser current information located on themechanism labels.
31
1. Open a terminal window. Click: Start/Pro-gram/Accessories/Hyperterminal/Hyperterminal
2. In the “Connection Description” window, typethe name “AV 28 media center” then click “OK”;any name may be entered.
3. In the “Connect To” window, select the COMport on your computer that you will be connect-ing the AV28 media center to and then click OK.
4. In the “COM1 Properties” window, make theselections in the various fields as shown.
5. In the Hyperterminal window, click on File/Properties. In the Properties window, click onthe Settings tab, make the selections in thevarious fields as shown.
Setting-up a Computer to Issue TAP Commands
6. In the Settings window, click onACSII setup and make the selec-tions and changes as shown.
Note: Terminal programs other thanhyperterminal can be used.
32
General Test Procedure Notes
1. The media center will not turn on unless it senses a speaker connected to the Zone 1 (or Zone2) speaker connector. Connecting a speaker cable to the Zone 1 (or Zone 2) speaker connector orphysically shorting J301 pin 8 and 5 together will allow the media center to turn on. Disconnectinga Zone output will cause that Zone to turn off.
2. After completing any or all adjustment procedures requiring TAP commands, the FLASHmemory must be updated to store the adjustments. Refer to the Adjustment/Performance Verifica-tion Procedure 10.
3. All AM and FM adjustments must be performed when replacing a main or tuner PCB in order toensure an optimized tuner. All TAP related tuner adjustments are stored in FLASH memory on themain PCB.
4. Functional/Performance Verification Tests: Contain tests to verify the performance and functionof the AV28 media center.Adjustment/Performance Verification Procedures: Contain procedures to optimize the performanceof the AV28 media center.
1. TAP Test Cable Connection
1.1 Connect the test cable’s, part number264565, DB-9 connector to the RS-232 COMport on your computer. Connect the testcable’s 3.5mm plug to the serial data jack onthe AV28 media center.
1.2 With a Hyperterminal window open, applypower to the AV28 media center. A responsesimilar to the following will be displayed onyour computer screen.
Reset!
Fixture Detection ... Failed.Phase 1 Input Pattern :11010111101Zone Sense Bus ... Failed.Memory Tests ... Passed.
Ready for test...
>Self-test phase has expired...UEI Chip Result : BOS0IR Loopback ... Passed.Tuner Board Variant : USARF House Code : 0010Booting Cirrus API...Initializing Encoder...ive Info...CD/DVD Drive ... Passed.Booting Application...
Issuing TAP Commands to the AV28 media center
2. Verify the media center communicates inTAP mode
2.1 Type the command PS C and hit “Enter”.A response similar to the following will bedisplayed on your computer screen. (poweron self test results).
Fixture Detection ... Failed....Phase 1 Inputs : Not Found.I2C Bus ... Passed.TAP Bus ... Failed....TAP RX : Short to ground.Smart Speaker Bus ... Passed.CCB Bus ... Passed.Keypad Bus ... Passed.VFD Bus ... Passed.Zone Enable Bus ... Passed.Zone Sense Bus ... Failed....Zone 1 Sense : Short to ground.Zone MUX Bus ... Passed.RF Bus ... Passed.IR Blaster Bus ... Passed.Miscellaneous Pins ... Passed.All Pins Short Test ... Passed.I2C Chip Tests ... Passed.CCB Chip Tests ... Passed.RF Loopback ... Passed.Memory Tests ... Passed.UEI Query ... Passed.IR Loopback ... Passed.CD/DVD Drive ... Passed.
33
InputFrequency
InputAmplitude
DetectorOutput
60 Hz 200 mVrms <.8Vrms15.75 kHz 30 mVrms >2.5 Vrms31.5 kHz 30 mVrms >2.5Vrms
AM General Test Setup
Unless otherwise noted, set an RF generatorto 1500 kHz (1503 kHz for Europe and Japan),74 dBuV emf, 30% AM modulation, 400 Hzmodulation. Measurements are taken from therecord output. Refer to Figure 1. The equivalentfield intensity is 26 dB less than the generatoroutput level or 1/20th of the output voltage. Thesignal levels given do not include this factor.
1. AM Sensitivity Performance Verification
1.1 Set the RF generator output for a 53 dBuVemf field intensity, 30% AM modulation, 400Hzand the unit and RF generator to 1080 kHz.
1.2 Reference a dB meter to the left or rightrecord output.
1.3 Turn off the RF generator’s modulation.
1.4 The record output should measure < -20dB, SNR.
2. AM Seek Performance Verification
2.1 Set the RF generator to 1130 kHz (1125kHz for Euro and Japan), AM modulation,400 Hz modulation, 61 dBuV emf field inten-sity.
2.2 Place the unit into seek and verify the unitstops at 1130 kHz (1125 kHz for Euro andJapan).
2.3 Switch the RF generator for a 49 dBuVemf field intensity and verify the radio doesnot stop at 1130 kHz (1125 kHz for Euro andJapan).
3. FM Sensitivity Performance Verification
3.1 Set the RF generator to 98.1 MHz, 1 kHzmono modulation, pilot off, 75 kHz deviation,17 dBf at the unit’s FM antenna input, J102.(19 dBf for Euro and Japan)
3.2 Measure the distortion at the left or rightrecord output. It should be < 3.0%.
4. FM Seek Performance Verification
4.1 Set the RF generator to 98.9 MHz, 1 kHzmono modulation, pilot off, 75 kHz deviation,35 dBf, at the unit’s FM antenna input, J102.
4.2 Place the unit into seek and verify that itstops at 98.9 MHz.
4.3 Reduce the RF generator to 25 dBf.
4.4 Tune the unit to 98.1 MHz and then placethe unit into seek. Verify the radio does notstop at 98.9 MHz.
5. Serial Data Verification
5.1 Connect an Oscilloscope to the serialdata output connector J704 pin 2.
5.2 Press volume up or down on the console.Observe a digital wave form on the oscillo-scope.
6. TV Sensor Verification
6.1 Apply a signal to the TV Sensor inputJ105 pin 2 at the level and frequency listed inthe following table. The signal should beapplied to the ring of a 3.5mm jack.
6.2 Measure the output of the detector, U303pin 8, at J103 pin 19.Note: Off <.8Vrms, On >2.5Vrms. Settlingtime is .1 seconds to turn on, 2.0 seconds toturn off.
Functional/Performance Verification Tests
34
Functional/Performance Verification Tests
7. Inputs/Outputs Verification
8. CD Performance Test
8.1 The media center should be able to play the test discs listed in the following table.
Note:
1. The remote control is needed to turn on the Zone 2 output and should be used to verify the unit’sability to respond to remote commands. Refer to the Zone 2 Operation section on page 69.
Parameter Nominal Limit Suggested Test discDefect Tracking (void) 1.0 mm 0.8 mm Pierre Vernay, test CD#2
Defect Tracking (black dot) 1.0 mm 0.8 mm ABEX test disc TCD-725RDefect Tracking (scratch) 1.6 mm 1.0 mm ABEX test disc TCD-721 R
Defect Tracking(finger print)
75 mm 65 mm ABEX test disc TCD-725R
Defect Tracking(warped disc)
1.0 mm 0.7 mm ABEX test disc TCD-732RA
Defect Tracking(eccentric disc)
210 mm 140 mm ABEX test disc TCD-714R
Test Functional test forthe...
Connect the MediaCenter...
To... and select theconsolesource...
Listen/look for..
Speaker Zones 1, 2output...
an AM28/35 poweredspeaker...
TV S-video output... a TV S-Video input...
1Speaker Zones output,TV S-Video, compositevideo output, and DVD.
TV composite videooutput...
a TV composite videoinput...
DVD(insert a DVD).
a cleanundistorted picturefrom the TV. Aclean undistortedaudio output fromthe PS28/35powered speaker.
TV analog audioinput...
TV.
VCR analog audioinput...
VCR.
AUX analog audioinput...
AUX.2 Analog audio Inputs
Tape analog audioinput...
an analog source...
Tape.
a cleanundistorted audiooutput from thePS28/35 poweredspeakerconnected to theconsole's SpeakerZones output.
TV digital (S/PDIF)audio input...
TV.
VCR digital (S/PDIF)audio input...
VCR.
AUX digital (S/PDIF)audio input...
AUX.
Tape digital(S/PDIF) audioinput...
a digital (S/PDIF)source...
Tape.3
Digital (S/PDIF) andoptical audio inputs.
Optical input... the optical output of asource...
TV and assignthe optical inputto TV.
a cleanundistorted audiooutput from thePS28/35 poweredspeakerconnected to theconsole's SpeakerZones output.
Record digital(S/PDIF) output...
the digital (S/PDIF)input of a device...
Record opticaloutput...
the optical input of adevice...4
Record digital (S/PDIF)audio output, RecordOptical output, Recordanalog output and CD. Record analog
output...to the analog input of adevice...
CD.(insert a CD).
a cleanundistorted audiooutput from thesource.
S-Video input... to the S-Video output ofa source...
S-Videooutput.
5 S-Video and Compositevideo input
Composite videoinput...
to the Composite videooutput of a source...
VCR. a cleanundist-ortedoutputfromthe...
Compo-sitevideooutput
35
Adjustment/Performance Verification Procedures
AM Tuner General Test Setup
Measurements are taken from the recordoutput. Refer to Figure 1.The equivalent fieldintensity in dBuV/m is 20 dB less than thegenerator output level in dBuV EMF at thereceiving antenna. The signal levels given donot include this factor.
Figure 1. AM Test Setup
TAP Test Cable Connection
Connect the TAP test cable’s, part number264565, DB-9 connector to the COM port onyour computer. Connect the test cable’s 3.5mmplug to the serial data jack on the AV28 mediacenter. Refer to pages 31 and 32.
1. AM Sensitivity Verification
1.1 Set the RF generator output for a 53dBuV/m field intensity at the unit’s antenna,30% AM modulation, 1 kHz and the unit andRF generator to 1080 kHz.
1.2 Reference a dB meter to the left or rightrecord output.
1.3 Turn off the RF generator’s modulation.
1.4 The record output should measure< -20 dB.
2. AM Tuner Adjustment
2.1 Set an RF generator output for a69 dBuV/m field intensity at the unit’s an-tenna, 30% AM modulation, 1 kHz and theunit and RF generator to 1500 kHz.
2.2 Adjust the red slug of T101 until a maxi-mum output is measured at the record output.
2.3 Set the RF generator and unit to 600 kHz.
2.4 Adjust the black slug of T101 until amaximum output is measured at the recordoutput.
2.5 The adjustment of the red and black slugaffects each other. Repeat step 2.1-2.4 untilthe measurement at the record output isoptimized for both adjustments.
3. AM Stop Level Adjustment, TAP
3.1 Issue the TAP command TF.
3.2 Set the RF generator to 1080 kHz, 30%AM modulation, 1 kHz modulation, 56 dBuV/mfield intensity at the unit’s antenna.
3.3 Issue the TAP command T2.
3.4 Set the generator to 1130 kHz (1125 kHzfor Euro and Japan), 61 dBuV/m field inten-sity.
3.5 Place the unit into seek and verify the unitstops at 1130 kHz (1125 kHz for Euro andJapan).
3.6 Switch the RF generator to 49 dBuV/mfield intensity. Place the unit into seek modeand verify the unit does not stop at 1130 kHz(1125 kHz for Euro and Japan).
3.7 Issue the TAP command TB. This willsave the adjustment in FLASH.
36
Adjustment/Performance Verification Procedures
FM Tuner General Test Setup
Connect the signal generator to the FM an-tenna jack J102 using a 50 to 75 Ohm match-ing network. Adjustments to the procedure’sstated signal levels should be made to accountfor a signal level loss due to the matchingnetwork and/or any other losses.
4. FM IF Offset Adjustment, TAP
4.1 Issue the TAP command TF.
4.2 Set the RF generator to 98.1 MHz, nomodulation, 50 dBf, at the unit’s FM antennainput, J102.
4.3 Issue TAP command T7.
4.4 Wait two seconds after issuing the TAPcommand T7 and then switch the RF genera-tor to 1 kHz mono modulation, pilot off, 75kHz deviation.
4.5 Measure the signal at the record output. Ifit is < 0.55% THD, proceed to step 4.5. If thedistortion is > 0.55% THD, issue the TAPcommand T9. Verify that the THD is now< 0.55%.
4.6 Issue the TAP command TB. This willsave the adjustment into FLASH.
5. FM Distortion Adjustment
5.1 Set the RF generator to 98.1 MHz, 1 kHzmono modulation, pilot off, 75 kHz deviation,65 dBf at the unit’s FM antenna input, J102.
5.2 Adjust the unit to 98.1 MHz.
5.3 Measure the signal distortion and level atthe record output. The output signal shouldmeasure <.5% THD+N and at a level be-tween 520-1050 mVrms.
5.4 If the distortion is >.5%, adjust T103 forminimum distortion. Verify the signal level isbetween 520-1050 mVrms and the distortionis <.5%.
6. FM Sensitivity Verification
6.1 Set the RF generator to 98.1 MHz, 1 kHzmono modulation, pilot off, 75 kHz deviation,17 dBf at the unit’s FM antenna input, J102(19 dBf for Euro).
6.2 Measure the THD+N at the left or rightrecord output. It should be < 3.0%.
7. Stereo Separation Verification
7.1 Set the RF generator to 98.1 MHz, 1 kHzleft only modulation, 10% pilot, 75 kHz totaldeviation, 65 dBf at the unit’s FM antennainput, J102.
7.2 Reference a dB meter to the left recordoutput.
7.3 Switch the RF generator to right onlymodulation.
7.4 Measure the left record output. It shouldbe < -25 dB, referenced to the measurementtaken in procedure 7.2.
8. FM Stop Level Adjustment, TAP
8.1 Issue the TAP command TF.
8.2 Set the RF generator to 98.1 MHz, 1 kHzmono modulation, pilot off, 75 kHz deviation,30 dBf, at the unit’s FM antenna input, J102.
8.3 Issue the TAP command T3.
8.4 Switch the RF generator to 98.9 MHz, 35dBf at the units FM antenna input, J102.
8.5 Place the unit into seek and verify that itstops at 98.9 MHz.
8.6 Reduce the RF generator to 25 dBf at theunits FM antenna input, J102.
8.7 Place the unit into seek. Verify the radiodoes not stop at 98.9 MHz.
8.8 Issue the TAP command TB. This willsave the adjustment into FLASH.
37
9. FM Stereo Threshold Adjustment, TAP
9.1 Issue the TAP command TF.
9.2 Set the RF generator to 98.1 MHz, 1 kHzstereo L= -R modulation, 10% pilot, 75 kHzdeviation, 40 dBf, at the unit’s FM antennainput, J102.
9.3 Issue the TAP command T5.
9.4 Increase the RF generator output to 45dBf. Verify there is a 1 kHz signal at therecord output.
9.5 Decrease the RF generator level to 35dBf. Verify there is no signal at the recordoutput.
9.6 Issue the TAP command TB. This willsave the adjustment into FLASH.
Adjustment/Performance Verification Procedures
InputFrequency
InputAmplitude
DetectorOutput
60 Hz 200 mVrms <.8Vrms15.75 kHz 30 mVrms >2.5 Vrms31.5 kHz 30 mVrms >2.5Vrms
10. TV ON Detector Verification
10.1 Apply a signal to the TV Sensor inputJ105 pin 2 at the level and frequency listed inthe following table.Note: The signal should be applied to the ringof a 3.5 mm jack.
10.2 Measure the output of the detector,U303 pin 8, at J103 pin 19.Note: Off <.8Vrms, On >2.5Vrms. Settlingtime is .1 seconds to turn on, 2.0 seconds toturn off.
38
Part List Notes
1. This part is not normally available from customer service. Approval from the Field ServiceManager is required before ordering.
2. The individual parts located on the PCB are listed in the part list.
3. This part is critical for safety purposes. Failure to use a substitute replacement with thesame safety characteristics as the recommended replacement part might create shock, fire and/orother hazards.
4. When replacing the tuner or main PCB, the tuner alignments should be performed. The averagetuner alignment values are stored in FLASH memory, which is located on the main PCB, when themain PCB is manufactured. The alignment procedures should be done to optimize the performanceof the tuner to compensate for PCB to PCB component variations.
Figure 2. Tap Test Cable Part Number 264565
REAR VIEW
39
Main Part ListRefer to Figure 3
Item Number
Description Part Number Qty Note
1 DRIVE, DVD ROM, FOR USA (1802) (1B08) 273686-003 OR -004 3
2 MAIN PCB ASSEMBLY, SLAB 276328 1 1, 2, 4 3 TUNER , US, PCB ASSEMBLY 260322-1 1 1, 2, 4 4 KEYPAD, PCB ASSEMBLY 254141 1 1, 2 5 PAD, HEAT TRANSFER, 14.6mm, NOTCH 262872-001 1 6 MODULE, VFD 256149-001 1 7 TOP COVER ASSEMBLY 266280-001 1 8 DOOR ASSEMBLY 264353-001 1 9 BASE, EMI 256153-001 1
10, 12 END CAP ASSY, LEFT 266437-001 1
11, 13 END CAP ASSY, RIGHT 266438-001 1 14 LENS, IR 256158-001 1 15 BRACKET, DVD 256729 1 16 PAD, SWITCH, ELASTOMERIC 256745-001 1 17 CABLE, DVD, PWR, 4 POS, 240mm 256144-04240 1 18 CABLE, SIGNAL, IDE, 40 PIN, 300mm 256145-40300 1 19 CABLE, FFC, 26 POS, 130mm 256147-30130 1 20 FOOT, RUBBER 188462-001 6 21 BRACKET, SUPPORT, TUNER PCB 256748-001 1 22 SCREW, M3-0.5, SYM, PAN, XREC 256752-005 4 23 CLIP, SPACER, DAMPER 260386 1 24 PLATE, STRIKER 256756-001 1 25 SPRING, DOOR 256757-001 1 26 MAGNET, DOOR 258357 1 27 GEAR, DAMPER, UP RIGHT, TYPE-F 256797-04 1 28 SCREW, TAP, 8-11X.625, PAN, XRC/SQ 193637-10 6 29 GASKET, EMI 262875-085 1 30 GASKET, EMI 256160-002 1 31 GASKET, EMI, STRAIGHT 260383-003 1 32 GASKET, EMI 256160-004 1 33 CABLE, 10 POS, SPLIT 256734-001 1 34 CABLE, HEADPHONE, 4POS, 70mm 256775-04070 1 35 SCREW, TAPP, 6-13x.5, PAN, XREC/SQ 172783-08 1 36 GASKET, EMI 256160-005 1 37 GASKET, EMI, STRAIGHT 260383-001 1 38 CLIP, GROUNDING 258488 1 39 FACE PLATE, TRAY, DVD 258489 1 40 GASKET, EMI 262876-100 1 41 BEZEL 256156-001 1 42 LENS, VFD DISPLAY 256157-001 1 - SPACER ARM 263181 1 - SHIM, HEADPHONE JACK 262878 1
DRIVE, DVD ROM, FOR NON-USA (XB08) 292153-002 OR 302890-001
41
(Resistors)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
R1 10K, 0603, .1W, 5% 199403-103R2 33 OHM, 0603, .1W, 5% 199403-330R3 33 OHM, 0603, .1W, 5% 199403-330R4 33 OHM, 0603, .1W, 5% 199403-330R5 33 OHM, 0603, .1W, 5% 199403-330R6 33 OHM, 0603, .1W, 5% 199403-330R7 33 OHM, 0603, .1W, 5% 199403-330R8 33 OHM, 0603, .1W, 5% 199403-330R9 10K, 0603, .1W, 5% 199403-103R10 1.0K, 0603, .1W, 1% 191465-1001R11 10K, 0603, .1W, 5% 199403-103R101 1.0K, 0603, .1W, 1% 191465-1001R102 1.0K, 0603, .1W, 1% 191465-1001R103 100 OHM, 0603, .1W, 5% 199403-101R104 100 OHM, 0603, .1W, 5% 199403-101R105 1.0K, 0603, .1W, 1% 191465-1001R106 100 OHM, 0603, .1W, 5% 199403-101R107 10K, 0603, .1W, 5% 199403-103R108 10K, 0603, .1W, 5% 199403-103R109 10K, 0603, .1W, 5% 199403-103R110 10K, 0603, .1W, 5% 199403-103R111 10K, 0603, .1W, 5% 199403-103R112 10K, 0603, .1W, 5% 199403-103R113 10K, 0603, .1W, 5% 199403-103R114 10K, 0603, .1W, 5% 199403-103R115 10K, 0603, .1W, 5% 199403-103R116 10K, 0603, .1W, 5% 199403-103R117 10K, 0603, .1W, 5% 199403-103R118 10K, 0603, .1W, 5% 199403-103R119 10K, 0603, .1W, 5% 199403-103R121 5.6K, 0603, .1W, 5% 199403-562R122 5.6K, 0603, .1W, 5% 199403-562R123 10K, 0603, .1W, 5% 199403-103R124 10K, 0603, .1W, 5% 199403-103R125 5.6K, 0603, .1W, 5% 199403-562R126 10K, 0603, .1W, 5% 199403-103R127 5.6K, 0603, .1W, 5% 199403-562R128 5.6K, 0603, .1W, 5% 199403-562R129 10K, 0603, .1W, 5% 199403-103R130 5.6K, 0603, .1W, 5% 199403-562R131 10K, 0603, .1W, 5% 199403-103R132 1.0K, 0603, .1W, 1% 191465-1001R133 2.2K, 0603, .1W, 5% 199403-222R134 2.2K, 0603, .1W, 5% 199403-222R135 100 OHM, 0603, .1W, 5% 199403-101R136 100 OHM, 0603, .1W, 5% 199403-101R137 100 OHM, 0603, .1W, 5% 199403-101R138 100 OHM, 0603, .1W, 5% 199403-101R140 10K, 0603, .1W, 5% 199403-103R141 10K, 0603, .1W, 5% 199403-103R142 10K, 0603, .1W, 5% 199403-103R143 2.2K, 0603, .1W, 5% 199403-222R144 10K, 0603, .1W, 5% 199403-103
42
(Resistors continued)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
R201 100K, 0603, .1W, 5% 199403-104R202 100K, 0603, .1W, 5% 199403-104R203 100K, 0603, .1W, 5% 199403-104R204 100K, 0603, .1W, 5% 199403-104R205 100K, 0603, .1W, 5% 199403-104R206 100K, 0603, .1W, 5% 199403-104R207 100K, 0603, .1W, 5% 199403-104R208 100K, 0603, .1W, 5% 199403-104R209 750 OHM, 0603, .1W, 5% 199403-751R210 3.9K, 0603, .1W, 5% 199403-392R211 10 OHM, 0603, .1W, 5% 199403-100R212 2.2K, 0603, .1W, 5% 199403-222R213 15 OHM, 0603, .1W, 5% 199403-150R214 750 OHM, 0603, .1W, 5% 199403-751R215 3.9K, 0603, .1W, 5% 199403-392R216 10 OHM, 0603, .1W, 5% 199403-100R217 2.2K, 0603, .1W, 5% 199403-222R218 15 OHM, 0603, .1W, 5% 199403-150R219 560 OHM, 0603, .1W, 5% 199403-561R220 560 OHM, 0603, .1W, 5% 199403-561R227 1.0K, 0603, .1W, 1% 191465-1001R230 4.7K, 0603, .1W, 5% 199403-472R231 4.7K, 0603, .1W, 5% 199403-472R233 4.7K, 0603, .1W, 5% 199403-472R234 4.7K, 0603, .1W, 5% 199403-472R235 820 OHM, 0603, .1W, 5% 199403-821R236 820 OHM, 0603, .1W, 5% 199403-821R237 100K, 0603, .1W, 5% 199403-104R238 100K, 0603, .1W, 5% 199403-104R239 1.0K, 0603, .1W, 1% 191465-1001R240 1.0K, 0603, .1W, 1% 191465-1001R241 1.0K, 0603, .1W, 1% 191465-1001R242 10K, 0603, .1W, 5% 199403-103R243 1.0K, 0603, .1W, 1% 191465-1001R244 1.0K, 0603, .1W, 1% 191465-1001R245 1.0K, 0603, .1W, 1% 191465-1001R246 1.0K, 0603, .1W, 1% 191465-1001R247 1.0K, 0603, .1W, 1% 191465-1001R248 1.0K, 0603, .1W, 1% 191465-1001R249 1.0K, 0603, .1W, 1% 191465-1001R250 10K, 0603, .1W, 5% 199403-103R251 2.2K, 0603, .1W, 5% 199403-222R252 2.2K, 0603, .1W, 5% 199403-222R253 10K, 0603, .1W, 5% 199403-103R254 1.0K, 0603, .1W, 1% 191465-1001R255 1.0K, 0603, .1W, 1% 191465-1001R256 2.2K, 0603, .1W, 5% 199403-222R257 10K, 0603, .1W, 1% 191465-1002R258 10K, 0603, .1W, 1% 191465-1002R259 10K, 0603, .1W, 5% 199403-103R301 1.33K, 0603, 100mW, 1% 191465-1331R302 1.33K, 0603, 100mW, 1% 191465-1331R303 47K, 0603, .1W, 5% 199403-473
43
(Resistors continued)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
R304 10K, 0603, .1W, 1% 191465-1002R305 10K, 0603, .1W, 1% 191465-1002R306 100 OHM, 0603, .1W, 5% 199403-101R307 100 OHM, 0603, .1W, 5% 199403-101R308 22 OHM, 0603, .1W, 5% 199403-220R309 100 OHM, 0603, .1W, 5% 199403-101R312 100 OHM, 0603, .1W, 5% 199403-101R313 22 OHM, 0603, .1W, 5% 199403-220R314 22 OHM, 0603, .1W, 5% 199403-220R315 2.0 OHM, 0603, SMD, 100mW 199403-2R0R316 100 OHM, 0603, .1W, 5% 199403-101R317 100 OHM, 0603, .1W, 5% 199403-101R318 100 OHM, 0603, .1W, 5% 199403-101R319 14 OHM, 0603, .1W, 1% 191465-1402R320 14 OHM, 0603, .1W, 1% 191465-1402R321 14 OHM, 0603, .1W, 1% 191465-1402R322 14 OHM, 0603, .1W, 1% 191465-1402R323 100 OHM, 0603, .1W, 5% 199403-101R324 100 OHM, 0603, .1W, 5% 199403-101R325 14 OHM, 0603, .1W, 1% 191465-1402R326 14 OHM, 0603, .1W, 1% 191465-1402R327 3.24K, 0603, .1W, 1% 191465-3241R328 3.24K, 0603, .1W, 1% 191465-3241R329 3.24K, 0603, .1W, 1% 191465-3241R330 3.24K, 0603, .1W, 1% 191465-3241R331 14 OHM, 0603, .1W, 1% 191465-1402R332 14 OHM, 0603, .1W, 1% 191465-1402R333 432 OHM, 0603, 100MW, 1% 191465-4320R334 432 OHM, 0603, 100MW, 1% 191465-4320R335 100K, 0603, .1W, 5% 199403-104R336 100K, 0603, .1W, 5% 199403-104R337 49.9 OHM, 0603, .1W, 1% 191465-49R9R338 10K, 0603, .1W, 5% 199403-103R339 10K, 0603, .1W, 5% 199403-103R340 JUMPER, CHIP, 0603 196042R341 JUMPER, CHIP, 0603 196042R342 330 OHM, 0603, .1W, 5% 199403-331R343 4.7K, 0603, .1W, 5% 199403-472R344 4.7K, 0603, .1W, 5% 199403-472R345 4.7K, 0603, .1W, 5% 199403-472R346 432 OHM, 0603, 100MW, 1% 191465-4320R347 191 OHM, 0603, .1W, 1% 191465-1910R348 432 OHM, 0603, 100MW, 1% 191465-4320R349 191 OHM, 0603, .1W, 1% 191465-1910R350 4.7K, 0603, .1W, 5% 199403-472R351 100 OHM, 0603, .1W, 5% 199403-101R352 1.0K, 0603, .1W, 1% 191465-1001R353 100 OHM, 0603, .1W, 5% 199403-101R354 332 OHM, 0603, .1W, 1% 191465-3320R401 1.33K, 0603, 100mW, 1% 191465-1331R402 1.33K, 0603, 100mW, 1% 191465-1331R403 10K, 0603, .1W, 1% 191465-1002R404 10K, 0603, .1W, 1% 191465-1002
44
(Resistors continued)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
R405 100 OHM, 0603, .1W, 5% 199403-101R406 100 OHM, 0603, .1W, 5% 199403-101R407 100 OHM, 0603, .1W, 5% 199403-101R410 100 OHM, 0603, .1W, 5% 199403-101R411 100 OHM, 0603, .1W, 5% 199403-101R412 2.0 OHM, 0603, SMD, 100mW 199403-2R0R413 100 OHM, 0603, .1W, 5% 199403-101R414 100 OHM, 0603, .1W, 5% 199403-101R415 14 OHM, 0603, .1W, 1% 191465-1402R416 14 OHM, 0603, .1W, 1% 191465-1402R417 14 OHM, 0603, .1W, 1% 191465-1402R418 14 OHM, 0603, .1W, 1% 191465-1402R419 100 OHM, 0603, .1W, 5% 199403-101R420 100 OHM, 0603, .1W, 5% 199403-101R421 14 OHM, 0603, .1W, 1% 191465-1402R422 14 OHM, 0603, .1W, 1% 191465-1402R423 3.24K, 0603, .1W, 1% 191465-3241R424 3.24K, 0603, .1W, 1% 191465-3241R425 3.24K, 0603, .1W, 1% 191465-3241R426 3.24K, 0603, .1W, 1% 191465-3241R427 14 OHM, 0603, .1W, 1% 191465-1402R428 14 OHM, 0603, .1W, 1% 191465-1402R429 1.0K, 0603, .1W, 1% 191465-1001R430 1.0K, 0603, .1W, 1% 191465-1001R431 100K, 0603, .1W, 5% 199403-104R432 100K, 0603, .1W, 5% 199403-104R433 49.9 OHM, 0603, .1W, 1% 191465-49R9R434 10K, 0603, .1W, 5% 199403-103R435 10K, 0603, .1W, 5% 199403-103R436 JUMPER, CHIP, 0603 196042R437 JUMPER, CHIP, 0603 196042R438 330 OHM, 0603, .1W, 5% 199403-331R439 1.0K, 0603, .1W, 1% 191465-1001R440 100 OHM, 0603, .1W, 5% 199403-101R441 332 OHM, 0603, .1W, 1% 191465-3320R501 75 OHM, 0603, 0.1W, 5% 199403-750R502 75 OHM, 0603, 0.1W, 5% 199403-750R503 75 OHM, 0603, 0.1W, 5% 199403-750R504 75 OHM, 0603, 0.1W, 5% 199403-750R505 75 OHM, 0603, 0.1W, 5% 199403-750R506 75 OHM, 0603, 0.1W, 5% 199403-750R507 75 OHM, 0603, 0.1W, 5% 199403-750R508 75 OHM, 0603, 0.1W, 5% 199403-750R509 2.2K, 0603, .1W, 5% 199403-222R510 3.3K, 0603, .1W, 5% 199403-332R511 47K, 0603, .1W, 5% 199403-473R512 100 OHM, 0603, .1W, 5% 199403-101R513 909 OHM, 0603, .1W, 1% 191465-9090R514 100 OHM, 0603, .1W, 5% 199403-101R515 100 OHM, 0603, .1W, 5% 199403-101R516 100 OHM, 0603, .1W, 5% 199403-101R517 100 OHM, 0603, .1W, 5% 199403-101R522 10K, 0603, .1W, 1% 191465-1002
45
(Resistors continued)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
R523 10K, 0603, .1W, 1% 191465-1002R532 16.2K, 0603, .1W, 1% 191465-1622R533 16.2K, 0603, .1W, 1% 191465-1622R534 100 OHM, 0603, .1W, 5% 199403-101R601 100 OHM, 0603, .1W, 5% 199403-101R603 10K, 0603, .1W, 5% 199403-103R604 4.02K, 0603, .1W, 1% 191465-4021R605 75 OHM, 0603, 0.1W, 5% 199403-750R606 75 OHM, 0603, 0.1W, 5% 199403-750R607 75 OHM, 0603, 0.1W, 5% 199403-750R608 75 OHM, 0603, 0.1W, 5% 199403-750R609 75 OHM, 0603, 0.1W, 5% 199403-750R610 75 OHM, 0603, 0.1W, 5% 199403-750R611 2.0K, 0603, .1W, 5% 199403-202R612 75 OHM, 0603, 0.1W, 5% 199403-750R613 75 OHM, 0603, 0.1W, 5% 199403-750R614 75 OHM, 0603, 0.1W, 5% 199403-750R615 75 OHM, 0603, 0.1W, 5% 199403-750R616 75 OHM, 0603, 0.1W, 5% 199403-750R617 75 OHM, 0603, 0.1W, 5% 199403-750R618 10K, 0603, .1W, 5% 199403-103R623 4.7K, 0603, .1W, 5% 199403-472R624 4.7K, 0603, .1W, 5% 199403-472R627 10K, 0603, .1W, 1% 191465-1002R629 10K, 0603, .1W, 1% 191465-1002R630 10K, 0603, .1W, 1% 191465-1002R631 4.99K, 0603, .1W, 1% 191465-4991R632 10K, 0603, .1W, 1% 191465-1002R633 10K, 0603, .1W, 1% 191465-1002R634 10K, 0603, .1W, 1% 191465-1002R635 4.99K, 0603, .1W, 1% 191465-4991R701 100 OHM, 0603, .1W, 5% 199403-101R702 100 OHM, 0603, .1W, 5% 199403-101R703 100 OHM, 0603, .1W, 5% 199403-101R704 100 OHM, 0603, .1W, 5% 199403-101R705 1.0K, 0603, .1W, 1% 191465-1001R706 100 OHM, 0603, .1W, 5% 199403-101R707 100 OHM, 0603, .1W, 5% 199403-101R708 100 OHM, 0603, .1W, 5% 199403-101R709 100 OHM, 0603, .1W, 5% 199403-101R710 100 OHM, 0603, .1W, 5% 199403-101R711 249 OHM, 0603, .1W, 1% 191465-2490R712 107 OHM, 0603, 100mW, SMD, 1% 191465-1070R713 10K, 0603, .1W, 5% 199403-103R714 22 OHM, 0603, .1W, 5% 199403-220R715 22 OHM, 0603, .1W, 5% 199403-220R716 1.5K, 0603, SMD, 100mW, 5% 199403-152R718 100 OHM, 0603, .1W, 5% 199403-101R728 1.0K, 0603, .1W, 1% 191465-1001R729 75 OHM, 0603, 0.1W, 5% 199403-750R730 75 OHM, 0603, 0.1W, 5% 199403-750R732 2.2K, 0603, .1W, 5% 199403-222R733 10K, 0603, .1W, 5% 199403-103
46
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
R734 10K, 0603, .1W, 5% 199403-103R735 1.0K, 0603, .1W, 1% 191465-1001R736 10K, 0603, .1W, 5% 199403-103R737 1.0K, 0603, .1W, 1% 191465-1001R738 1M, 0603, .1W, 5% 199403-105R739 33 OHM, 0603, .1W, 5% 199403-330R740 33 OHM, 0603, .1W, 5% 199403-330R741 100 OHM, 0603, .1W, 5% 199403-101R742 100 OHM, 0603, .1W, 5% 199403-101R743 100 OHM, 0603, .1W, 5% 199403-101R744 100 OHM, 0603, .1W, 5% 199403-101R745 100 OHM, 0603, .1W, 5% 199403-101R746 100 OHM, 0603, .1W, 5% 199403-101R748 10K, 0603, .1W, 5% 199403-103R749 100 OHM, 0603, .1W, 5% 199403-101R750 10K, 0603, .1W, 5% 199403-103R751 1.5K, 0603, SMD, 100mW, 5% 199403-152R752 4.7K, 0603, .1W, 5% 199403-472R753 100 OHM, 0603, .1W, 5% 199403-101R754 100 OHM, 0603, .1W, 5% 199403-101R802 33.2K, 0603, .1W, 1% 191465-3322R803 33.2K, 0603, .1W, 1% 191465-3322R805 6.04K, 0603, .1W, 1% 191465-6041R806 9.09 OHM, 0603, .1W, 1% 191465-9091R810 10K, 0603, .1W, 1% 191465-1002R811 18.2K, 0603, .1W, 1% 191465-1822R815 100 OHM, 0603, .1W, 5% 199403-101R819 100 OHM, 0603, .1W, 5% 199403-101R820 100 OHM, 0603, .1W, 5% 199403-101R821 100 OHM, 0603, .1W, 5% 199403-101R823 10K, 0603, .1W, 5% 199403-103R824 1.8K, 0603, SMD, 100mW, 5% 199403-182R825 10K, 0603, .1W, 5% 199403-103R826 1.0K, 0603, .1W, 1% 191465-1001R827 10K, 0603, .1W, 5% 199403-103R829 499 OHM, 0603, .1W, 1% 191465-4990R831 1.0K, 0603, .1W, 1% 191465-1001R832 10K, 0603, .1W, 5% 199403-103R833 1.0K, 0603, .1W, 1% 191465-1001R834 1.0K, 0603, .1W, 1% 191465-1001R835 1.0K, 0603, .1W, 1% 191465-1001R1000 100 OHM, 0603, .1W, 5% 199403-101R1001 1K, 0603, .1W, 5% 199403-102R1002 4.7K, 0603, .1W, 5% 199403-472
(Resistors continued)
47
(Capacitors)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
C1 .047uF, 0603, X7R, 25V, 5% 196999-473C2 .047uF, 0603, X7R, 25V, 5% 196999-473C3 .047uF, 0603, X7R, 25V, 5% 196999-473C4 .047uF, 0603, X7R, 25V, 5% 196999-473C5 2.2uF, 1206, X7R, 10V, 20% 260361-2253C6 .047uF, 0603, X7R, 25V, 5% 196999-473C7 1000pF, 0603, X7R, 50V 191470-102C8 .047uF, 0603, X7R, 25V, 5% 196999-473C9 1000pF, 0603, X7R, 50V 191470-102C10 .047uF, 0603, X7R, 25V, 5% 196999-473C11 2.2uF, 1206, X7R, 10V, 20% 260361-2253C12 .047uF, 0603, X7R, 25V, 5% 196999-473C13 1000pF, 0603, X7R, 50V 191470-102C14 .047uF, 0603, X7R, 25V, 5% 196999-473C15 1000pF, 0603, X7R, 50V 191470-102C16 .047uF, 0603, X7R, 25V, 5% 196999-473C17 1000pF, 0603, X7R, 50V 191470-102C18 .047uF, 0603, X7R, 25V, 5% 196999-473C101 .047uF, 0603, X7R, 25V, 5% 196999-473C102 .047uF, 0603, X7R, 25V, 5% 196999-473C103 .047uF, 0603, X7R, 25V, 5% 196999-473C104 .047uF, 0603, X7R, 25V, 5% 196999-473C105 10uF, EL, 85, 16V, 20% 177902-100CC107 .047uF, 0603, X7R, 25V, 5% 196999-473C108 .047uF, 0603, X7R, 25V, 5% 196999-473C109 .047uF, 0603, X7R, 25V, 5% 196999-473C110 .047uF, 0603, X7R, 25V, 5% 196999-473C112 100pF, 0603, COG, 50V, 5% 188454-101C113 .047uF, 0603, X7R, 25V, 5% 196999-473C114 330pF, 0603, COG, 50V, 5% 188454-331C115 330pF, 0603, COG, 50V, 5% 188454-331C116 330pF, 0603, COG, 50V, 5% 188454-331C117 330pF, 0603, COG, 50V, 5% 188454-331C118 330pF, 0603, COG, 50V, 5% 188454-331C119 330pF, 0603, COG, 50V, 5% 188454-331C120 330pF, 0603, COG, 50V, 5% 188454-331C121 330pF, 0603, COG, 50V, 5% 188454-331C201 180pF, 0603, COG, 50V 188454-181C202 180pF, 0603, COG, 50V 188454-181C203 180pF, 0603, COG, 50V 188454-181C204 180pF, 0603, COG, 50V 188454-181C205 180pF, 0603, COG, 50V 188454-181C206 180pF, 0603, COG, 50V 188454-181C207 180pF, 0603, COG, 50V 188454-181C208 180pF, 0603, COG, 50V 188454-181C209 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC210 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC211 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC212 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC213 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC214 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC215 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC216 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7V
48
(Capacitors continued)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
C219 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC220 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC221 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC222 .047uF, 0603, X7R, 25V, 5% 196999-473C223 .01uF, 0603, X7R, 50V 191470-103C224 .01uF, 0603, X7R, 50V 191470-103C225 .047uF, 0603, X7R, 25V, 5% 196999-473C226 .047uF, 0603, X7R, 25V, 5% 196999-473C227 1uF, EL, 85, 50V, 20% 177902-010HC228 1uF, EL, 85, 50V, 20% 177902-010HC229 22uF, EL, 85, 20%, 16V 177902-220CC230 22uF, EL, 85, 20%, 16V 177902-220CC231 .047uF, 0603, X7R, 25V, 5% 196999-473C232 1uF, EL, 85, 50V, 20% 177902-010HC233 2200pF, 0603, X7R, 50V 191470-222C234 2200pF, 0603, X7R, 50V 191470-222C239 .047uF, 0603, X7R, 25V, 5% 196999-473C240 1000pF, 0603, X7R, 50V 191470-102C241 1000uF EL, 85, 16V, 20% 149948-102CC242 1000uF EL, 85, 16V, 20% 149948-102CC243 1000pF, 0603, X7R, 50V 191470-102C246 100pF, 0603, COG, 50V, 5% 188454-101C247 100pF, 0603, COG, 50V, 5% 188454-101C248 1000pF, 0603, X7R, 50V 191470-102C249 1000pF, 0603, X7R, 50V 191470-102C250 1000pF, 0603, X7R, 50V 191470-102C251 10uF, EL, 85, 25V, 20% 177902-100EC252 .047uF, 0603, X7R, 25V, 5% 196999-473C253 1000pF, 0603, X7R, 50V 191470-102C254 1000pF, 0603, X7R, 50V 191470-102C302 10uF, EL, 85, 16V, 20% 177902-100CC303 10uF, EL, 85, 16V, 20% 177902-100CC305 .047uF, 0603, X7R, 25V, 5% 196999-473C306 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC307 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC312 1.0uF, 1206, X7R, 16V 181998-105C313 .047uF, 0603, X7R, 25V, 5% 196999-473C314 .047uF, 0603, X7R, 25V, 5% 196999-473C315 1.0uF, 1206, X7R, 16V 181998-105C316 1.0uF, 1206, X7R, 16V 181998-105C317 39pF, 0603, COG, 50V, 5% 188454-390C318 .047uF, 0603, X7R, 25V, 5% 196999-473C319 .047uF, 0603, X7R, 25V, 5% 196999-473C320 39pF, 0603, COG, 50V, 5% 188454-390C321 1.0uF, 1206, X7R, 16V 181998-105C322 1000pF, 0603, X7R, 50V 191470-102C323 1000pF, 0603, X7R, 50V 191470-102C324 1000pF, 0603, X7R, 50V 191470-102C325 1000pF, 0603, X7R, 50V 191470-102C326 .047uF, 0603, X7R, 25V, 5% 196999-473C327 220pF, 0603, COG, 50V, 5% 188454-221C328 220pF, 0603, COG, 50V, 5% 188454-221C329 220pF, 0603, COG, 50V, 5% 188454-221
49
(Capacitors continued)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
C330 220pF, 0603, COG, 50V, 5% 188454-221C331 22uF, EL, 85, 20%, 16V 177902-220CC332 22uF, EL, 85, 20%, 16V 177902-220CC333 .047uF, 0603, X7R, 25V, 5% 196999-473C334 2200pF, 0603, X7R, 50V 191470-222C335 2200pF, 0603, X7R, 50V 191470-222C336 .047uF, 0603, X7R, 25V, 5% 196999-473C338 1000pF, 0603, X7R, 50V 191470-102C339 390pF, 0603, COG, 50V 188454-391C340 390pF, 0603, COG, 50V 188454-391C341 1500pF, 0603, X7R, 50V 191470-152C342 1500pF, 0603, X7R, 50V 191470-152C343 1000pF, 0603, X7R, 50V 191470-102C344 1000pF, 0603, X7R, 50V 191470-102C405 .047uF, 0603, X7R, 25V, 5% 196999-473C406 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC408 10uF, EL, 85, 16V, 20% 177902-100CC410 10uF, EL, 85, 16V, 20% 177902-100CC412 1.0uF, 1206, X7R, 16V 181998-105C413 .047uF, 0603, X7R, 25V, 5% 196999-473C414 .047uF, 0603, X7R, 25V, 5% 196999-473C415 1.0uF, 1206, X7R, 16V 181998-105C416 1.0uF, 1206, X7R, 16V 181998-105C417 .047uF, 0603, X7R, 25V, 5% 196999-473C418 .047uF, 0603, X7R, 25V, 5% 196999-473C419 1.0uF, 1206, X7R, 16V 181998-105C420 1000pF, 0603, X7R, 50V 191470-102C421 1000pF, 0603, X7R, 50V 191470-102C422 1000pF, 0603, X7R, 50V 191470-102C423 1000pF, 0603, X7R, 50V 191470-102C424 .047uF, 0603, X7R, 25V, 5% 196999-473C425 220pF, 0603, COG, 50V, 5% 188454-221C426 220pF, 0603, COG, 50V, 5% 188454-221C427 220pF, 0603, COG, 50V, 5% 188454-221C428 220pF, 0603, COG, 50V, 5% 188454-221C429 22uF, EL, 85, 20%, 16V 177902-220CC430 22uF, EL, 85, 20%, 16V 177902-220CC431 .047uF, 0603, X7R, 25V, 5% 196999-473C432 .047uF, 0603, X7R, 25V, 5% 196999-473C433 2200pF, 0603, X7R, 50V 191470-222C434 2200pF, 0603, X7R, 50V 191470-222C436 1000pF, 0603, X7R, 50V 191470-102C437 390pF, 0603, COG, 50V 188454-391C438 390pF, 0603, COG, 50V 188454-391C439 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC441 1500pF, 0603, X7R, 50V 191470-152C442 1500pF, 0603, X7R, 50V 191470-152C501 .047uF, 0603, X7R, 25V, 5% 196999-473C502 .01uF, 0603, X7R, 50V 191470-103C503 .01uF, 0603, X7R, 50V 191470-103C504 .01uF, 0603, X7R, 50V 191470-103C505 .01uF, 0603, X7R, 50V 191470-103C506 .01uF, 0603, X7R, 50V 191470-103
50
(Capacitors continued)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
C507 .01uF, 0603, X7R, 50V 191470-103C508 .01uF, 0603, X7R, 50V 191470-103C509 .01uF, 0603, X7R, 50V 191470-103C513 .047uF, 0603, X7R, 25V, 5% 196999-473C515 1uF, EL, 85, 50V, 20% 177902-010HC516 .033uF, 0603, X7R, 25V 196999-333C517 .047uF, 0603, X7R, 25V, 5% 196999-473C528 .047uF, 0603, X7R, 25V, 5% 196999-473C529 .047uF, 0603, X7R, 25V, 5% 196999-473C530 1uF, EL, 85, 50V, 20% 177902-010HC531 1uF, EL, 85, 50V, 20% 177902-010HC535 .047uF, 0603, X7R, 25V, 5% 196999-473C536 1uF, EL, 85, 50V, 20% 177902-010HC541 .047uF, 0603, X7R, 25V, 5% 196999-473C542 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC543 4.7uF, EL, SMD, 85, 35V, 20% 177902-4R7VC544 100pF, 0603, COG, 50V, 5% 188454-101C545 100pF, 0603, COG, 50V, 5% 188454-101C546 .047uF, 0603, Y5V, 16V 191471-473C547 .047uF, 0603, Y5V, 16V 191471-473C548 1uF, EL, 85, 50V, 20% 177902-010HC601 22uF, EL, 85, 20%, 16V 177902-220CC602 .047uF, 0603, X7R, 25V, 5% 196999-473C603 .047uF, 0603, X7R, 25V, 5% 196999-473C604 180pF, 0603, COG, 50V 188454-181C605 180pF, 0603, COG, 50V 188454-181C606 180pF, 0603, COG, 50V 188454-181C607 22pF, 0603, COG, 50V, 5% 188454-220C608 22pF, 0603, COG, 50V, 5% 188454-220C609 22pF, 0603, COG, 50V, 5% 188454-220C610 220pF, 0603, COG, 50V, 5% 188454-221C611 220pF, 0603, COG, 50V, 5% 188454-221C612 220pF, 0603, COG, 50V, 5% 188454-221C613 10uF, EL, 85, 16V, 20% 177902-100CC614 10uF, EL, 85, 16V, 20% 177902-100CC615 10uF, EL, 85, 16V, 20% 177902-100CC616 10uF, EL, 85, 16V, 20% 177902-100CC617 10uF, EL, 85, 16V, 20% 177902-100CC618 10uF, EL, 85, 16V, 20% 177902-100CC620 .01uF, 0603, X7R, 50V 191470-103C621 220uF, EL, SMD, 105, 16V, 20% 255071-221CC622 22uF, EL, 85, 16V, 20% 177902-220CC623 22uF, EL, 85, 16V, 20% 177902-220CC624 220uF, EL, SMD, 105, 16V, 20% 255071-221CC625 22uF, EL, 85, 20%, 16V 177902-220CC626 100uF, EL, SMD, 105, 25V, 20% 255071-101EC627 100uF, TANT, SMD, 10V, 10% 196981-A107C1C628 1000pF, 0603, X7R, 50V 191470-102C629 1000pF, 0603, X7R, 50V 191470-102C637 .047uF, 0603, X7R, 25V, 5% 196999-473C638 .047uF, 0603, X7R, 25V, 5% 196999-473C639 .047uF, 0603, X7R, 25V, 5% 196999-473C640 .047uF, 0603, X7R, 25V, 5% 196999-473
51
(Capacitors continued)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
C641 1uF, TANT, 35V, 1411, 20% 188588-105C642 1uF, TANT, 35V, 1411, 20% 188588-105C643 1uF, TANT, 35V, 1411, 20% 188588-105C644 100pF, 0603, COG, 50V, 5% 188454-101C645 100pF, 0603, COG, 50V, 5% 188454-101C646 100pF, 0603, COG, 50V, 5% 188454-101C647 100pF, 0603, COG, 50V, 5% 188454-101C648 100pF, 0603, COG, 50V, 5% 188454-101C649 100pF, 0603, COG, 50V, 5% 188454-101C650 1uF, TANT, 35V, 1411, 20% 188588-105C651 1uF, TANT, 35V, 1411, 20% 188588-105C701 .047uF, 0603, X7R, 25V, 5% 196999-473C702 390pF, 0603, COG, 50V 188454-391C704 30pF, 0603, COG, 50V, 5% 188454-300C705 390pF, 0603, COG, 50V 188454-391C706 .047uF, 0603, X7R, 25V, 5% 196999-473C707 30pF, 0603, COG, 50V, 5% 188454-300C708 390pF, 0603, COG, 50V 188454-391C709 .047uF, 0603, X7R, 25V, 5% 196999-473C710 .047uF, 0603, X7R, 25V, 5% 196999-473C711 4.7nF, 0603, X7R, 25V, 5% 196999-472C712 4.7nF, 0603, X7R, 25V, 5% 196999-472C713 4.7nF, 0603, X7R, 25V, 5% 196999-472C714 4.7nF, 0603, X7R, 25V, 5% 196999-472C716 4.7nF, 0603, X7R, 25V, 5% 196999-472C717 4.7nF, 0603, X7R, 25V, 5% 196999-472C718 4.7nF, 0603, X7R, 25V, 5% 196999-472C719 4.7nF, 0603, X7R, 25V, 5% 196999-472C720 4.7nF, 0603, X7R, 25V, 5% 196999-472C721 4.7nF, 0603, X7R, 25V, 5% 196999-472C722 4.7nF, 0603, X7R, 25V, 5% 196999-472C723 4.7nF, 0603, X7R, 25V, 5% 196999-472C724 4.7nF, 0603, X7R, 25V, 5% 196999-472C725 4.7nF, 0603, X7R, 25V, 5% 196999-472C726 4.7nF, 0603, X7R, 25V, 5% 196999-472C727 4.7nF, 0603, X7R, 25V, 5% 196999-472C728 4.7nF, 0603, X7R, 25V, 5% 196999-472C729 4.7nF, 0603, X7R, 25V, 5% 196999-472C730 .047uF, 0603, X7R, 25V, 5% 196999-473C733 1000pF, 0603, X7R, 50V 191470-102C734 1000pF, 0603, X7R, 50V 191470-102C735 .047uF, 0603, X7R, 25V, 5% 196999-473C736 .047uF, 0603, X7R, 25V, 5% 196999-473C737 100pF, 0603, COG, 50V, 5% 188454-101C739 .047uF, 0603, X7R, 25V, 5% 196999-473C740 .047uF, 0603, X7R, 25V, 5% 196999-473C741 .047uF, 0603, X7R, 25V, 5% 196999-473C742 2.2uF, 1206, X7R, 10V, 20% 260361-2253C801 330uF, EL, 105, 50V, 20% 258490-331B24HC803 330uF, EL, 105, 50V, 20% 258490-331B24HC805 0.1uF, 0805, X7R, 50V, 10% 133624C806 0.1uF, 0805, X7R, 50V, 10% 133624C808 2200pF, 0603, X7R, 50V 191470-222
52
Main PCB 260318-0
Electrical Part List
(Diodes)
(Capacitors continued)
ReferenceDesignator
Description Part Number Note
C809 2200pF, 0603, X7R, 50V 191470-222C812 .047uF, 0603, X7R, 25V, 5% 196999-473C813 .1uF, 0805, X7R, 10%, 25V 181264-104C814 .047uF, 0603, X7R, 25V, 5% 196999-473C815 .1uF, 0805, X7R, 10%, 25V 181264-104C816 680pF, 0603, X7R, 50V 191470-681C819 0.47uF, 1812, X7R, 50V, 20% 258418-4743C820 820pF, 0603, X7R, 50V 191470-821C821 0.47uF, 1812, X7R, 50V, 20% 258418-4743C822 0.47uF, 1812, X7R, 50V, 20% 258418-4743C824 0.47uF, 1812, X7R, 50V, 20% 258418-4743C828 1000uF, EL, 105, 25V, 20% 258490-102B25EC832 1000uF, EL, 105, 25V, 20% 258490-102B25EC837 .047uF, 0603, X7R, 25V, 5% 196999-473C838 .047uF, 0603, X7R, 25V, 5% 196999-473C839 330uF, EL, SMD, 105, 10V, 20% 256772-331AC840 .047uF, 0805, X7R, 50V, 10% 133623-473C841 .047uF, 0805, X7R, 50V, 10% 133623-473C842 .047uF, 0805, X7R, 50V, 10% 133623-473C843 .047uF, 0805, X7R, 50V, 10% 133623-473C844 .047uF, 0603, X7R, 25V, 5% 196999-473C845 .047uF, 0603, X7R, 25V, 5% 196999-473C846 .047uF, 0805, X7R, 50V, 10% 133623-473C847 .047uF, 0805, X7R, 50V, 10% 133623-473C848 680pF, 0603, X7R, 50V 191470-681C849 3.9nF, 0603, X7R, 25V, 5% 196999-392C1001 22uF, EL, 85, 20%, 16V 177902-220C
ReferenceDesignator
Description Part Number Note
D1 SHOTTKY, BAT42W, SOD-123 196984-002D2 SHOTTKY, BAT42W, SOD-123 196984-002D7 BAV99, SOT23 147239D8 BAV99, SOT23 147239D100 BAV99, SOT23 147239D101 BAV99, SOT23 147239D102 BAV99, SOT23 147239D103 BAV99, SOT23 147239D104 BAV99, SOT23 147239D105 BAV99, SOT23 147239D201 SOT, MMBD914LT1 148582D202 BAV99, SOT23 147239D203 BAV99, SOT23 147239D204 BAV99, SOT23 147239D205 BAV99, SOT23 147239D206 DUAL, SOT-23, BAW56 180738D207 BAV99, SOT23 147239D208 BAV99, SOT23 147239D301 BAV99, SOT23 147239D302 BAV99, SOT23 147239
53
Main PCB 260318-0
Electrical Part List
(Transistors)
ReferenceDesignator
Description Part Number Note
D304 1N5232, ZENER, 5.6V, 225 mW 135247-5232D305 BAV99, SOT23 147239D306 1N5232, ZENER, 5.6V, 225 mW 135247-5232D401 BAV99, SOT23 147239D402 BAV99, SOT23 147239D403 BAV99, SOT23 147239D501 BAV99, SOT23 147239D502 BAV99, SOT23 147239D503 BAV99, SOT23 147239D504 BAV99, SOT23 147239D601 BAV99, SOT23 147239D602 BAV99, SOT23 147239D603 BAV99, SOT23 147239D604 BAV99, SOT23 147239D605 BAV99, SOT23 147239D606 BAV99, SOT23 147239D703 BAV99, SOT23 147239D704 BAV99, SOT23 147239D705 BAV99, SOT23 147239D706 SHOTTKY, BAT42W, SOD-123 196984-002D707 DUAL, SOT-23, BAW56 180738D801 SB560 254110-005D803 SCHOTTKY, 40V, 3A, SMB 193847-001D1000 BAV99, SOT23 147239D1002 56107, IR EMITTING 256733-002D1003 56107, IR EMITTING 256733-002D1004 56107, IR EMITTING 256733-002D1005 56107, IR EMITTING 256733-002
(Diodes continued)
ReferenceDesignator
Description Part Number Note
Q101 SOT-23 260354-001Q103 2SA1521, P, SOT, 2.2K 180789Q105 2SA1521, P, SOT, 2.2K 180789Q106 NPN, SOT, 47K 146817Q201 NPN, SOT, 47K 146817Q202 SOT-23 260354-001Q203 NPN, SOT, 47K 146817Q204 SOT-23 260354-001Q205 NPN, SOT, 2SC4695 148770Q206 NPN, SOT, 2SC4695 148770Q207 PNP, SOT, 47K 146818Q210 NPN, SOT, 47K 146817Q211 NPN, SOT, 47K 146817Q212 PNP, SOT, 47K 146818Q213 PNP, SOT, 47K 146818Q214 PNP, SOT, 47K 146818Q300 NPN, SOT, 2SC4695 148770Q301 NPN, SOT, 2SC4695 148770Q302 PNP, SOT, 47K 146818
54
Main PCB 260318-0
Electrical Part List(Transistors continued)
ReferenceDesignator
Description Part Number Note
Q303 NPN, SOT, 2SC4695 148770Q304 NPN, SOT, 2SC4695 148770Q601 NPN, SOT, 47K 146817Q602 NPN, SOT, MMBT3904 146819Q603 NPN, SOT, MMBT3904 146819Q703 NPN, SOT, 47K 146817Q705 SOT-23 260354-001Q706 SOT-23 260354-001Q801 NPN, 15V, 200MA, SOT-23 254111-001Q802 PNP, SOT, MMBT3906 148596Q803 NPN, SOT, 47K 146817Q804 NPN, 15V, 200MA, SOT-23 254111-001Q805 NPN, SOT, 47K 146817Q1000 IR RECEIVER MODULE 256780-001
(Integrated Circuits continued)
ReferenceDesignator
Description Part Number Note
U1 DVD DECODER, CS98000 254107-001U2 FLASH, 16M, 3.3V, TSSOP, 90NS (not prog.) Not availableU3 SDRAM, 64MBIT, 2MX32, 3.3V 254182-080U201 AUDIO MATRIX, SO28 177984-2U202 DAC, 96KHZ, 3-5V, CS4340-KS 256087-001U204 OPAMP, DUAL, SINGLE SUPPLY 256740-001U205 OPAMP, DUAL, HI CURRENT 256741-001U302 QUAD 2 CHANNEL MUX, 74LCX157 260377-001U303 CODEC AUDIO, CS4224, SSOP28 254153-001U304 QUAD 2 CHANNEL MUX, 74LCX157 260377-001U305 OPAMP, DUAL, SINGLE SUPPLY 256740-001U306 XMITTER, DIG, CS8405A, SOIC 254163-001U402 QUAD 2 CHANNEL MUX, 74LCX157 260377-001U403 CODEC AUDIO, CS4224, SSOP28 254153-001U404 QUAD 2 CHANNEL MUX, 74LCX157 260377-001U405 OPAMP, DUAL, SINGLE SUPPLY 256740-001U406 XMITTER, DIG, CS8405A, SOIC 254163-001U501 RECEIVER, SPDIF, CS8415A, SOIC 254193-001U502 QUAD 2 CHANNEL MUX, 74LCX157 260377-001U503 DAC, 96KHZ, 3-5V, CS4340-KS 256087-001U504 OPAMP, DUAL, SINGLE SUPPLY 256740-001U505 QUAD 2 CHANNEL MUX, 74LCX157 260377-001U601 ENCODER, VIDEO, DIG, CS4955-CQ 256088-001U602 VIDEO SW, 2-IN, 3-CH, SSOP16 260344-001U603 DUAL VIDEO AMP, SSOP-8 254181-001U604 DUAL VIDEOA MP, SSOP-8 254181-001U701 INVERTER, 5V, 74VCHU04 258464-001U703 RESET, SOT-23, MAX809, 2.63V 191158-06U704 IRCODE, KS88C01532, QFP44 (BOS3) 256143-004U802 VOLT REG, 3.3V, 3.5A, SMPS 193846-001U803 VOLT REG, 3.3V, 3.5A, SMPS 193846-001U805 COUNTER, BINARY, 8-BIT 256115-001U806 VOLT REG, POS, 2.5V, 1.0A, LDO 258495-001VR1 VOLT REG, POS, 8.0V, SOT-89 258430-W8R0
55
(Miscellaneous)
Main PCB 260318-0
Electrical Part List
ReferenceDesignator
Description Part Number Note
CR701 RESNTR, CER, W/INTGRTD CAPS, 8MHZ
191446-8R00
FB301 400 OHM, CHIP, 0805 188587-401FB401 400 OHM, CHIP, 0805 188587-401FB701 BEAD, FERRITE, CHIP, 1806 256116-181 3
FB702 BEAD, FERRITE, CHIP, 1806 256116-181 3
J1000 CONNECTOR, HEADER, RTANG, EH 256114-04J101 CONN, HEADER, 30P, TOP-ENTRY, SMT 253356-T30J102 CONN, HEADER, 10 POS 148591-10J103 CONN, HEADER, 5 POS 148591-05J104 CONNECTOR, HEADER, 40 PIN 256105-001J106 CONN, HEADER, 4 POS 148591-04J201 CONNECTOR, RCA STACK 256106-001 OR 256106-002J213 CONN, HEADER, 4 POS 148591-04J301 CONN, DUAL, DIN, 8 POS 178355J501 CONNECTOR, OPTICAL, JF J2001 258421-001J601 CONN, DIN, DUAL, 4 POS, W/FLANGE 256107-002J701 CONNECTOR, OPTICAL, JF J1000 258420-001J704 CONNECTOR, JACK, DUAL, STEREO 268897-001J2000 CONN, JACK, HEAD PHONE, PCB MNT,
9P148583
J2001 CONNECTOR, HEADER, RTANG, EH 256114-04L100 22uH, COMMON MODE 187598-220L2000 100uH, SMT, LEM4532 178370-101L2001 100uH, SMT, LEM4532 178370-101L602 1.8uH, CERAMIC 1812, 5% 263452-1R8JL603 1.8uH, CERAMIC 1812, 5% 263452-1R8JL604 1.8uH, CERAMIC 1812, 5% 263452-1R8JL605 10uH, SMT, LEM4532 178370-100L802 100uH 131297L804 90 OHM 196676T301 TRANSFORMER, PULSE 254185-001T401 TRANSFORMER, PULSE 254185-001T701 TRANSFORMER, PULSE 254185-001Y301 CRYSTAL, 11.2896 MHZ, HC49S, SMD 197225Y700 XTAL, 27MHZ, +/-50PPM, HC-49U 256102-002
56
Tuner PCB 260322-1
Electrical Part List(Resistors)
ReferenceDesignator
Description Part Number Note
R101 1K, 0603, .1W, 5% 199403-102R102 120 OHM, 0603, .1W, 5% 199403-121R103 150 OHM, 0603, .1W, 5% 199403-151R104 100K, 0603, .1W, 5% 199403-104R105 47K, 0603, .1W, 5% 199403-473R106 2.32K, 0603, .1W, 1% 191465-2321R107 499 OHM, 0603, .1W, 1% 191465-4990R108 3.01K, 0603, .1W, 1% 191465-3011R109 2.32K, 0603, .1W, 1% 191465-2321R110 330 OHM, 0603, .1W, 1% 191465-3300R111 1.18K, 0603, 100MW, 1% 191465-1181R112 22 OHM, 0603, .1W, 5% 199403-220R113 4.75K, 0603, .1W, 1% 191465-4751R114 100 OHM, 0603, .1W, 1% 191465-1000R115 17.8K, 0603, 0.1W, 1% 191465-1782R116 51 OHM, 0603, 100mW, 5% 199403-510R117 2.32K, 0603, .1W, 1% 191465-2321R118 3.01K, 0603, .1W, 1% 191465-3011R119 5.1K, 0603, .1W, 5% 199403-512R120 5.1K, 0603, .1W, 5% 199403-512R121 51 OHM, 0603, 100mW, 5% 199403-510R122 13K, 0603, .1W, 1% 191465-1302R123 17.8K, 0603, .1W, 1% 191465-1782R124 3.32K, 0603, .1W, 1% 191465-3321R125 3.32K, 0603, .1W, 1% 191465-3321R126 2.21K, 0603, .1W, 1% 191465-2211R127 2.21K, 0603, .1W, 1% 191465-2211R128 4.75K, 0603, .1W, 1% 191465-4751R129 5.62K, 0603, 100mW, 1% 191465-5621R130 5.62K, 0603, 100mW, 1% 191465-5621R134 10K, 0603, .1W, 5% 199403-103R135 10K, 0603, .1W, 5% 199403-103R136 10K, 0603, .1W, 5% 199403-103R137 51K, 0603, SMD, 100mW 199403-513R138 51K, 0603, SMD, 100mW 199403-513R139 1K, 0603, .1W, 5% 199403-102R140 1K, 0603, .1W, 5% 199403-102R141 1K, 0603, .1W, 5% 199403-102R142 10K, 0603, .1W, 5% 199403-103R145 100 OHM, 0603, .1W, 5% 199403-101R146 4.75K, 0603, .1W, 1% 191465-4751R148 20.0K, 0603, .1W, 1% 191465-2002R149 51 OHM, 0603, 100mW, 5% 199403-510R150 68.1K, 0603, .1W, 1% 191465-6812R151 4.75K, 0603, .1W, 1% 191465-4751R159 3.01K, 0603, .1W, 1% 191465-3011R161 4.7K, 0603, .1W, 5% 199403-472R163 4.7K, 0603, .1W, 5% 199403-472R164 1 OHM, 0805, 1/10W, 5% 133626-1R05R169 10K, 0603, .1W, 5% 199403-103R201 4.7K, 0603, .1W, 5% 199403-472R202 47 OHM, 0603, SMD, 100mW 199403-470R203 470 OHM, 0603, 0.1W, 5% 199403-471
57
Tuner PCB 260322-1
Electrical Part List(Resistors continued)
ReferenceDesignator
Description Part Number Note
R204 430 OHM, 0603, SMD, 100mW 199403-431R205 1K, 0603, .1W, 5% 199403-102R206 68.1K, 0603, .1W, 1% 191465-6812R207 6.81K, 0603, 0.1W, 1% 191465-6811R208 9.1K, 0603, .1W, 5% 199403-912R209 10K, 0603, .1W, 5% 199403-103R210 100K, 0603, .1W, 5% 199403-104R211 1M, 0603, .1W, 5% 199403-105R212 4.7K, 0603, .1W, 5% 199403-472R213 4.7K, 0603, .1W, 5% 199403-472R214 5.62 OHM, 0603, 100mW, 1% 191465-5R62R215 10K, 0603, .1W, 5% 199403-103R216 1.5K, 0603, SMD, 100mW, 5% 199403-152R217 3.48K, 0603, .1W, 1% 191465-3481R218 620 OHM, 0603, .1W, 5% 199403-621R301 33.2K, 0603, .1W, 1% 191465-3322R302 13K, 0603, .1W, 1% 191465-1302R304 10K, 0603, .1W, 1% 191465-1002R305 3.74K, 0603, .1W, 1% 191465-3741R306 2.21K, 0603, .1W, 1% 191465-2211R307 3.32K, 0603, .1W, 1% 191465-3321R308 200K, 0603, .1W, 1% 191465-2003R309 100K, 0603, .1W, 5% 199403-104R310 100K, 0603, .1W, 5% 199403-104R311 3.32K, 0603, .1W, 1% 191465-3321R312 2.21K, 0603, .1W, 1% 191465-2211R313 200K, 0603, .1W, 1% 191465-2003R314 100K, 0603, .1W, 5% 199403-104R315 100K, 0603, .1W, 5% 199403-104R316 51K, 0603, SMD, 100mW 199403-513R317 10K, 0603, .1W, 5% 199403-103R318 100K, 0603, .1W, 5% 199403-104R319 1K, 0603, .1W, 5% 199403-102R320 100K, 0603, .1W, 5% 199403-104R321 1 OHM, 2010, 1/2W, 5% 187608-1R05R322 1K, 0603, .1W, 5% 199403-102
(Capacitors)
ReferenceDesignator
Description Part Number Note
C102 10pF, 0805, COG, 50V, 5% 133622-100C103 .047uF, 0805, X7R, 50V, 10% 133623-473C105 .047uF, 0805, X7R, 50V, 10% 133623-473C106 .047uF, 0805, X7R, 50V, 10% 133623-473C107 9.1pF, 0603, COG, 50V 188454-9R1C108 .047uF, 0805, X7R, 50V, 10% 133623-473C111 2.2uF, EL, 85, 50V, 20% 149947-2R2HC112 .047uF, 0805, X7R, 50V, 10% 133623-473C113 .047uF, 0805, X7R, 50V, 10% 133623-473C114 47uF, EL, 85, 16V, 20% 149947-470CC115 .047uF, 0805, X7R, 50V, 10% 133623-473
58
Tuner PCB 260322-1
Electrical Part List(Capacitors continued)
ReferenceDesignator
Description Part Number Note
C116 .27uF, 1206, X7R, 16V, 10% 181998-274C117 47uF, EL, 85, 25V, 20% 149947-470EC118 1.0uF, EL, 85, 50V, 20% 149947-1R0HC119 180pF, 0805, COG, 50V, 5% 133622-181C120 1.0uF, EL, 85, 50V, 20% 149947-1R0HC121 1.0uF, EL, 85, 50V, 20% 149947-1R0HC122 .47uF, EL, 85, 50V, 20% 149947-R47HC123 22uF, EL, 85, 25V, 20% 149947-220EC124 560pF, 0603, X7R, 50V 191470-561C125 47uF, EL, 85, 25V, 20% 149948-470EC126 .01uF, 0603, X7R, 50V 191470-103C127 10uF, EL, 85, 16V, 20% 149947-100CC128 10uF, EL, 85, 16V, 20% 149947-100CC129 10uF, EL, 85, 16V, 20% 149947-100CC130 .047uF, 0805, X7R, 50V, 10% 133623-473C131 3.3uF, EL, 85, 50V, 20% 149947-3R3HC132 .047uF, 0805, X7R, 50V, 10% 133623-473C133 .047uF, 0805, X7R, 50V, 10% 133623-473C141 100pF, 0603, COG, 50V, 5% 188454-101C142 33pF, 0603, COG, 50V, 5% 188454-330C143 1000pF, 0603, X7R, 50V 191470-102C144 33pF, 0603, COG, 50V, 5% 188454-330C145 .047uF, 0805, X7R, 50V, 10% 133623-473C146 .01uF, 0603, X7R, 50V 191470-103C148 1000pF, 0603, X7R, 50V 191470-102C149 100uF, EL, 85, 16V, 20% 149947-101CC150 2.2uF, EL, BP, 85, 50V, 20% 147522-2R2C151 .047uF, 0603, X7R, 5%, 25V 196999-473C152 .047uF, 0805, X7R, 50V, 10% 133623-473C201 68pF, 0603, COG, 50V, 5% 188454-680C203 .01uF, 0603, X7R, 50V 191470-103C204 68pF, 0603, COG, 50V, 5% 188454-680C205 180pF, 0603, COG, 50V 188454-181C206 .01uF, 0603, X7R, 50V 191470-103C207 4700pF, 0603, X7R, 50V 191470-472C208 4700pF, 0603, X7R, 50V 191470-472C210 39pF, 0603, COG, 50V, 5% 188454-390C211 1000pF, 0603, X7R, 50V 191470-102C212 1000pF, 0603, X7R, 50V 191470-102C213 .47uF, 1206, X7R, 16V, 10% 181998-474C214 1000pF, 0603, X7R, 50V 191470-102C216 390pF, 0603, COG, 50V 188454-391C217 390pF, 0603, COG, 50V 188454-391C218 33pF, 0603, COG, 50V, 5% 188454-330C219 6.8pF, 0603, COG, 50V, 5% 188454-6R8C220 1000pF, 0603, X7R, 50V 191470-102C221 560pF, 0603, X7R, 50V 191470-561C222 180pF, 0603, COG, 50V 188454-181C223 1000pF, 0603, X7R, 50V 191470-102C224 180pF, 0603, COG, 50V 188454-181C301 390uF, EL, 85, 20%, 50V 258490-391B25HC302 .047uF, 0805, X7R, 50V, 10% 133623-473
59
Tuner PCB 260322-1
Electrical Part List(Capacitors continued)
ReferenceDesignator
Description Part Number Note
C303 2200pF, 0603, X7R, 50V 191470-222C304 .047uF, 0805, X7R, 50V, 10% 133623-473C305 0.10uF, 0603, 16V, 5% 258498-104C306 0.47uF, 1812, X7R, 50V, 20% 258418-4743C307 470pF, 0603, X7R, 50V 191470-471C308 0.47uF, 1812, X7R, 50V, 20% 258418-4743C310 1000uF, EL, 105, 20%, 25V 258490-102B25EC312 0.1uF, 0805, X7R, 50V, 10% 133624C313 10uF, EL, 85, 16V, 20% 149947-100CC314 .047uF, 0805, X7R, 50V, 10% 133623-473C315 .047uF, 0805, X7R, 50V, 10% 133623-473C316 .047uF, 0805, X7R, 50V, 10% 133623-473C317 .047uF, 0805, X7R, 50V, 10% 133623-473C319 .33uF, BOX, 85, 50V, 5% 137127-334C320 330pF, 0603, COG, 50V, 5% 188454-331C321 1000pF, X7R, 50V, 0603, 5% 260345-102C322 470pF, 0603, COG, 50V, 5% 188454-471C323 10uF, EL, 85, 16V, 20% 149947-100CC324 .022uF, 0603, X7R, 25V 196999-223C325 0.056uF, 0603, 16V, 5% 258498-563C326 150pF, 0603, COG, 50V, 5% 188454-151C327 1800pF, 0603, X7R, 50V, 10% 191470-182C328 1000pF, X7R, 50V, 0603, 5% 260345-102
(Diodes)
ReferenceDesignator
Description Part Number Note
D202 SOT, MMBD914LT1 148582D203 BAV99, SOT23 147239D301 SCHOTTKY, 40V, 3A, SMB 193847-001D302 SOT-23, BAV70 147249D303 SOT-23, BAV70 147249
(Transistors)
ReferenceDesignator
Description Part Number Note
Q101 PNP, SOT, 47K 146818Q102 BPLR, N, 25V, 30mA, SOT-23 187601-001Q103 JFET, N, 20V, 20mA, TO-92 148590-EQ201 PNP, SOT, 47K 146818Q202 NPN, SOT, 2SC2814 148781-4Q203 NPN, SOT, 47K 146817Q204 PNP, SOT, MMBT3906 148596Q205 NPN, 1.3W, SOT-223 258416-001Q206 NPN, SOT, 47K 146817Q207 NPN, SOT, MMBT3904 146819Q208 JFET, N, 40V, 10mA, TO-92 147561-3Q209 NPN, SOT, 47K 146817
60
Tuner PCB 260322-1
Electrical Part List(Integrated Circuits)
ReferenceDesignator
Description Part Number Note
U101 AM/FM TUNER, MFP-30S 254561-001U103 PLL FREQSYNTH, LC72144M 260347-001U104 DUALCOMPARITOR, SO-8, LM393 148584U301 VOLT REG, 3.3V, 3.5A, SMPS 193846-001U302 VOLT, REG, 10V, POS 178352-10U303 OPAMP, QUAD, NJM3403AM 194024
(Miscellaneous)
ReferenceDesignator
Description Part Number Note
CF101 FILTER, CER, BAND PASS, FGD 253037-002CF102 FILTER, CER, BAND PASS, FGD 253037-001FB1 BEAD, FERRITE, CHIP, 1806 256116-181 3
FM-TNR101 TUNER, FM, 258513-001J101 CONN, AM ANTENNA, 2.5MM 179266J102 CONNNECTOR, FM, SHIELDED, US 258434-001J103 CONN, HEADER, 30P, TOP-ENTRY, SMT 253356-T30J104 CONN, DC POWER JACK 256763-001 3
J105 CONN, SERIAL 178356L101 1000uH, AX ON ALR, 40A 260363-102L201 10uH, SMT, LEM4532 178370-100L202 100nH, 0603, 5% 191488-101JL203 1.0uH, SMD, 20% 173273-1R0L204 220nH, 0805, 5% 191469-221JL205 1.0uH, SMD, 20% 173273-1R0L301 100uH 131297L302 330uH, SMD, 20% 178336-331JL303 330uH, SMD, 20% 178336-331JL304 22uH, COMMON MODE 187598-220RR201 RECEIVER, RF REMOTE, 27.145MHZ 258376-001RT1 LIMITER, CURRENT, 2.5A 258500-001SHLD-TNR SHIELD, FENCE 256743T101 MODULE, TUNING, AM, FRONT END 195359T102 FILTER, AM-IF, QUINTIPLE TUNED 254114-001T103 COIL, FM DISCRIMINATOR 254564-001T104 FILTER, STEREO MPX, SINGLE TUNED 147236T105 FILTER, STEREO MPX, SINGLE TUNED 147236Y102 CRYSTAL, QUARTZ, 7.2MHz, 50PPM 147223Y201 CRYSTAL, 27.145MHZ, FUNDAMENTAL 260353-001
61
Head Unit Packaging Part List
11
2
Figure 4. Console Packaging
Note: The AV28 media center is packaged with a powered bass module along with the systemaccessories. Refer to the particular system’s powered bass module service manual for furtherpackaging items. These items will differ depending upon the system, powered bass module, theAV28 media center is packaged with.
ItemNumber
Description Part Number Qty Note
1 PACKING, TOP, EPS 258467 12 PACKING, BOTTOM, EPS 258468 1
Packedwith bassmodule
REMOTE CONTROL, RC28 256119-001 - -
62
Digital AudioConnector
Analog AudioConnector
Mode SelectHeaders
ATAPI InterfaceConnector
Power SupplyConnector (4P)
1
DIGITALOUT
GNDR LGND
MASTERSLAVE
CSEL
+5V +12VGND
Figure 5. DVD Player Rear Panel
Laser Current Measurement
1. Turn on the media center and insert a disc. Insert a DVD when measuring the DVD lasercurrent and a CD when measuring the CD laser current.
2. Measure and record the voltage at the points 5V and L5V referenced to the ground shown infigure 6.
3. Subtract L5V from 5V (5V-L5V) and record the laser voltage (LmV).LmV/1 Ohm equals laser current (LC).
4. The measured laser current value should be ± 20% of the printed current rating on the pickuphead (PU). PU- .20PU < LC <PU + .20PU. Refer to figure 6 for the location of the laser currentrating. If the value is out of range, and the lens has been cleaned, replace the DVD/CD assembly.
Figure 6. Laser Current Measurement Point
Laser Current Measurement
63
Integrated Circuit Diagrams
U1, CS98000, DVD Decoder: Pin Function Table
64
Signal Names
A0-A19 Adress InputsDQ0-DQ7 Data Inputs/OutputsDQ8-DQ14 Data Inputs/OutputsDQ15A-1 Data Input/Output or Address InputE Chip EnableG Output EnableW Write EnableRP Reset/Block Temporary UnprotectRB Ready/Busy OutputBYTE Byte/Word Organization SelectVCC Supply VoltageVSS GroundNC Not Connected Internally
U2, FLASH, 16M, 3.3V TSSOP, 90NS
U3, SDRAM, 64MBIT, 2MX32, 3.3VU201, AUDIO MATRIX, S028
U202, U503, CS4340-KS, DAC, 96 kHz, 3-5V
Integrated Circuit Diagrams
65
U204, U305, U405, U504 OP AMP, DUAL, SINGLE SUPPLY
Integrated Circuit Diagrams
U205, OP AMP, DUAL, HI CURRENT
Inputs Output___ST Select A B YH X X X LL L L X LL L H X HL H X L LL H X H HX = Don't care
U302, U304, U402, U404, U502, U505 Truth Table 74LCX157, QUAD 2 CHANNEL MUX
U303, U403, CS4224, CODEC AUDIO, SS0P28
U306, U406 CS8405A, XMITTER, DIG, SOIC
U501, CS8415A, RECEIVER, SPDIF, SOIC
66
Integrated Circuit Diagrams
U601, CS4955-CQ, ENCODER, VIDEO, DIG
U602, VIDEO SW, 2-IN, 3-CH, SSOP16
U603, U604, DUAL VIDEO AMP, SSOP-8A OL HH L
U701 Truth Table74VCHU04, INVERTER, 5V
U301, U802, U803 VOLT REG, 3.3V, 3.5A. SMPS
67
U704, KS88C01532, IR CODE, QFP44 Pin Function Table
Integrated Circuit Diagrams
68
1 2 3 4 5 6 7 8 9
House code switches (1 - 4)
Changing House Codes
!!!!!
1. Changing the house code settings.
If commands given from a remote conflict with those of another nearby media center, the housecode for the media center can be changed as follows.
1.1 Open the remote control battery cover and locate the miniature switches.
1.2 Change the position of the switches 1, 2, 3, or 4 by moving them in the opposite directionfrom their current settings. Use a paper clip, ball point pen, or similar object.
Note: Do not change any other switch settings. Moving other switches may cause the remote tonot control the media center.
1.3 Replace the battery cover.
1.4 Lift the media center door and press the All Off button.
1.5 Press and hold the Store key. The current house code will appear in the media center displayin the form of four rectangles which represent the positions of switches 1 through 4.
HOUSE CODE: !!!!!!!!!!!!!!!!!!!!
Current house code = 0000(Switches 1 - 4 down.)
1.6 While holding the Store key, press any key on the remote control. The display will change toshow the new house code confirming recognition of the new code.
HOUSE CODE: !!!!!!!!!!!!!!!!!!!!
Current house code = 1010(Switches 1 up, 2 down, 3 up, 4 down.)
1.7 Release the Store key, the system remains off.
1.8 Using the remote, turn the AV28 media center onand then off. This will complete the process of storingthe new house code.
!!!!!
Figure 7. House Code Settings
69
Zone 2 Operation
1. Setting up a second listening zone.
The AV28 Media center can direct sound from one or two sources (such as CD, AM/FM tuner,Tape or Aux) to two different listening zones at the same time.
A compatible Bose® powered speaker system or an existing stereo system (special adaptorneeded) can be connected to the zone 2 speaker connector. Refer to the www.bose.com website for compatible speakers.
A second Lifestyle® system remote control is needed to operate the Zone 2 functions. Or, theswitches on the customer’s existing remote can be changed to control the Zone 2 functions, butthen will have to be changed back to control the Zone 1 functions.
1.1 Open the remote control battery cover and locate the miniature switches.
1.2 Set switches 5 and 6 as shown in the table below.
1.3 Make sure the house code switches match those of the customer’s other remote. If the housecode for the AV28 media center has been set for the customer’s other remote, it is not necessaryto reprogram it to match the second Zone 2 remote control.
1.4 Replace the battery cover.
1 2 3 4 5 6 7 8 9
Zone code switches (5 - 6)
Figure 8. Zone 2 Remote Control Switch Setting
Controlled Zone 5 6Zone 1 Down UpZone 2 Up DownZone1 and 2 Up Up
70
With the system off and powered applied, the following features are active as long as the “Store”key is held down. Releasing the “Store” key cancels the mode unless otherwise noted.
1. House Code: Pressing “Store” allows you to set the product’s house code for the RF remote.Refer the “Changing House Codes” section of this manual.
2. Software Revision: Pressing “Store” and “Enter” brings up a new set of information screens.The first press of “Enter” reveals the software version string. The second press reveals the serialnumber. The third and fourth press reveals information about Zone connections. The fifth pressreveals the DVD region code. The sixth press reveals the tuner board type. The seventh pressreveals the UEI IR blaster code revision string. Each subsequent press cycles through theseseven messages.
3. NTC-7 Video Test Pattern: Press “Store” and “Enter” until the software revision is shown. Atthis point, pressing “Erase” will toggle the NTC-7 video test pattern on and off. You do not need toleave your fingers on the buttons to keep generating the pattern.
4. Self Tests: To see the results of the self tests, press “Store” and then toggle “Enter” until thetuner board type is shown. At this point, while pressing “Store” and “Enter”, toggling “Eject” willmove forward through the list of tests. Each test is shown on the VFD display, and the result orresults are shown on each subsequent press of “Eject.”
Console-Key Special Function Features
Revision Driven by Part(s) Effected Page(s) Effected
REV 00 - REV 01 ECN 31418 Changes RCA connector block From 256106-001 to 256106-002
55
Lifestyle® Model AV28 Media Center
Service ManualPart Number 264563
©2005 Bose Corporation
Specifications and Features Subject to Change Without Notice
Bose CorporationThe MountainFramingham Massachusetts USA 01701P/N 264563 REV. 10 11/05 (H) http://serviceops.bose.com
