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Principle and Maintenance of ABS530T(RU)
Table of Contents
Chapter I Overview of ABS530T (RU)
1. Description of Functions
2. Block Diagram of Player
3. Composition of IC for Player
Chapter II Operating Principle of Servo Circuit
1. Processing Procedure of Digital Signal
2. Processing Procedure of Control Signal
Chapter III Operating Principle of Decoding Circuit
1. Control Circuit of System
2. Audio and Video Output Circuit
Chapter IV Operating Principle of Power Board
1. Block Diagram
2. Operating Principle of Circuits
Chapter V Operating Principle of Panel
1. Operating Principle
Chapter VI Troubleshooting
Appendix: Functions of IC Pins
Operating Principle Analysis of ABS530T(RU)
Chapter I Overview of ABS530T(RU)
I. Description of Functions
ABS530T(RU)is a mini-type music center integrating with video disc and power amplifier, with the following major features:
1. The layer adopts “Sanyo deck+MT1389” solution;
2. The power amplifier adopts the analogue power amplification circuit, with the power IC of TDA7265;
3. The audio DAC adopts CS4340 192KHz/24bit sampling, with high integration and high performance and price ratio;
4. It has the function of radio reception, and the tuner adopts Sanzhenxing DTS-44K(CE)module;
5. The power supply adopts the linear power, with stable performance and lower cost;
6. Equipped with SCART(CVBS/RGB)port;
7. “RSD” function;
8. Timed ON/OFF functions.
9. Compact and with beautiful appearance.
II. Block Diagram of ABS530T Complete Player and IC Function Table:
III. Function Table of ICs for ABS530T
Circuit Board
Number Name Function
Deck Sanyo Pick-up of disc signal
U201 MT1389 RF signal processing, digital signal
processing, servo processing, MPEG decoding, line scan, system control
U202 AT24C02 Series EEPROM, status memory
U205 HCU04 Hexaphase
U207 CS4340 AF digital/analog converter circuit
U209 LM1117MP-1.8 1.8v voltage-regulated power supply
U211 AE45164016 64Mbit SDRAM
U214 29LV160BE 16Mbit FLASH ROM
U219-221 4580 Dual operational amplifier
Mother Board
U302 D5954 4-channel servo driver circuit
Panel U401 IC 0791 Panel control, VFD display drive
16M ROM
SDRAM
Sanyo
deck
focus
track
feed main
load Load drive
Power circuit Panel circuit
status
Audio D/A,power
Refor
servo drive
digital servo
digital signal
MPEG
decoder
AV
output circuit
Composite video
S-video
Y/Cb/Cr
2-channel output
Optical, coaxial
MT1389
BA5954
4340,7265
HCU04
AT24C02
29LV160BE
Progressive
Y/Pb/Pr
VGA
Figure 1
Radio reception head
U402 HS0038A2 IR sensor
N100 LM7812 +12V 3-terminal voltage-regulated
power supply
N102 LM7912 -12V 3-terminal voltage-regulated
power supply
N101 LM1085 5V 3-terminal voltage-regulated
power supply
N104 IC BA033 +3.3V 3-terminal voltage-regulated
power supply
Power Board
N103 TDA 7265 Power amplification IC
Chapter II Operating Principle of Servo Circuit
I. Processing Procedure of Digital Signal
ABS530T(RU) adopts Sanyo double super error correction mechanism and MTK decoding solution, and its servo circuit mainly consists of preposition signal processing, digital servo processing, digital signal processing IC MT1389 and driver circuit BA5954. MT1389 is also a main part of the decoding circuit.
The A, B, C, D, E, F, SA, SB and RFO signal transmitted from the mechanism are mainly inputted through the 2-13 pins of MT1389, and after amplifying treatment of built- in amplifier of MT 1389, the signals are treated in two parts within MT1389:
After being processed by the internal digital servo signal circuit of MT1389, part of the signal forms into corresponding servo control signal, and output focus (FOSO), tracking (TRSO), main shaft (DMSO) and feed (FMSO) servo control signal from the P42, P41, P37 and P38 of MT1389 and send them to the driver circuit BA5954 to amplify the drive. After drive amplification, the signals will drive the focus coil, tracking coil, main shaft motor and feed motor. The focus and tracking servos will be used to adjust the object lens and enable laser beam to identify signal from compact disc correctly; the feed servo will be used to drive the laser head to move longitudinally, and scan the compact disc; the main shaft servo is used to control the main shaft motor to read the signals in constant linear speed and drive the disc to rotate.
After being processed by the internal VGA voltage-controlled amplifier of MT1389 in amplification and balance frequency compensation; another part of the signals is converted into digital signal by the internal A/D converter. When the mechanism reads the CD/VCD signals, these signals will be EFM demodulated in MT1389, and after accomplishing CIRC error regulation in internal MT1389, output to the next grade to carry out audio and video decoding; when the deck reads the DVD signals, these signals will be ESM demodulated in MT1389, and after accomplishing RSPC error regulation in internal MT1389, output to the next grade to carry out audio and
video decoding.
II. Processing Procedure of Control Signal
1. Automatic control of laser power, with the circuit shown as the Figure II:
MT1389 is integrated with APC (automatic light power control) circuit. Its Pin 20 is the pin for inputting VCD laser power rate detection signal, the Pin 21 is the pin for inputting DVD laser power rate detection signal, and the Pin 23 is the pin for outputting VCD laser power rate drive control. When the Pin 23 finds that the laser output power rate is too strong, the output voltage on Pin 23 will increase after the processing of internal circuit of MT1389, and then the conduction degree of V302 (2SB1132) and the voltage on its integration polar will decrease, which consequently lead to the decrease of voltage supplied to the laser tube, the weakening of laser head lighting, and thus achieve the automatic adjustment on laser output power. The Pin 22 is the pin for outputting DVD laser power drive control, with the specific control procedure similar to that of VCD.
2. The tray open/close control circuit is shown as the Figure III:
Figure 3 Different from the circuit in former MTK solution, the MT1389 is integrated with preposition signal processing circuit, so the tray open/close control signals are accomplished by MT1389, that is to say, the close control signal is accomplished by the Pin 51 of MT1389, while the open control signal by Pin 39 of MT1389.
When we press the open button, the Pin 51 of MT1389 is in high power level, while the Pin 39 is in low power level, and then the triode V308 will be on-state. Through resistor R323, the base of V306 will be made to be in low power level, and V306 will be on-state, with the current direction as the following figure:
Power voltage VCC ? V306E-C junction ? motor negative terminal LOAD- ? motor positive Load +? V308 C-E junction ? grounding
So the motor will rotate clockwise to accomplish the action of tray closing.
When we press the open button, the Pin 51 of MT1389 is in low power level, while the Pin 39 is in high power level, and then the triode V307 will be conducted. Through resistor R324, the base of V309 will be made to be in low power level, and V309 will be conducted, with the current direction as the following figure:
Power voltage VCC ? V309E-C junction ? motor negative terminal LOAD- ? motor positive Load +? V307 C-E junction? grounding
So the motor will rotate anti-clockwise to accomplish the action of tray opening.
3. The main shaft motor braking circuit is as the Figure IV:
To prolong the lifespan of motor and reduce the influence of start-up impact current, with the installation of disc, our R&D personnel design the main shaft motor to be in the state of constant operation, so that even if the STOP button is pressed, the disc will not be stopped. Therefore, when we press the OPEN button, a braking signal is required to stop the rotation of main shaft motor immediately to accomplish the opening action in a short time.
During playing, if we press the OPEN button, the main shaft drive signal will disappear, and because of inertia, the main shaft motor is still in operation. As the electromotive force generated in the operation of motor receives the induction voltage on sampling resistors R321 and R340, which, through the resistor R319 and R320, is added to the Pin 36 and Pin 35 of MT1389, and outputted from the Pin 34 after internal processing for amplification in MT1389, and delivered to Pin 47 of MT1389 through R318. After the internal A/D conversion and corresponding processing, an
instant motor reversal braking signal will be outputted from the Pin 37 of MT1389 to stop the rotation of main shaft motor immediately, so as to ensure the standstill of the disc when opening the player.
III. Servo drive circuit
The servo drive of the player is accomplished through a piece of 4-channel dedicated drive circuit BA5954, with the circuit as Figure V:
The 4 servo control signals generated in digital servo circuit processing of MT1389, i.e. focusing control FOSO, tracking control TRSO, feed control FMSO and main shaft control DMSO signals, are added to the pins 1, 26, 23 and 5 of BA5954 respectively, and after drive amplification of BA5954, the focusing and tracking drive signals will be outputted from the pins 13 and 14 and pins 15 and 16 of BA5954 respectively, and added to the focusing and tracking coils to drive the light head to accomplish the actions of focusing and tracking.
The feed and main shaft drive signals will be outputted from the pins 17 and 18 and pins 11 and 12 of BA5954 respectively, and added to the feed motor and main shaft motor to drive the light head to move longitudinally and enable the disc to rotate in constant linear speed.
The STBY on Pin 28 of BA5954 is an output-enabling signal, and only when the pin is in high power level, there will be output of drive voltage on the output terminal.
Chapter III Operating Principle of Decoding Circuit
The decoding circuit of the player mainly consists of decoding chips (including MT1389, SDRAM AE45164016 and FLASH ROM 29LV160BE) and audio DAC CS4360.
I. Control Circuit of System
1. Reset circuit is as the Figure VI:
The reset circuit of the player consists of triode Q204 9014, reset capacitor TC217 100uF/16V and phase inverter U205 HCU04. In starting up, as the terminal voltage of capacitor cannot be changed suddenly, the basic of Q204 is in low power level. After the cut-off of Q204, its emission polar is in low power level, after secondary phase inversion by U205 and regulation, the low power level reset signal is outputted to the Pin 110 of MT1389 to reset MT 1389. When the recharging of TC217 is finished, the base of Q204 will be in high power level, Q204 will be conducted, and the emission polar is in high power level. After the secondary phase inversion and regulation by U205, a high power level is outputted and added to the Pin 110 of MT1389 to maintain high power level during its normal operation.
2. Clock circuit
The crystal oscillator of X201 27MHz, C275/27PF, C276/27PF and phase inverter HCU04 form into clock oscillation circuit, and the clock signals generated are added to the pins 229 and 228 of MT1389 through R244 and 4248 to provide operating clock for MT1389.
3. Data communication circuit
The data communication circuit of the player consists of decoding chip MT1389, SDRAM, AE45164016 and FLASH ROM 29LV160BE, as the Figure VII:
MT1389 is a piece of super large integrated circuit, with the operation voltage of +3.3V and +1.8V. Its functions include: RF small signal preposition processing, digital servo, digital signal processing and accomplishing MPEG decoding and video coding. The built- in MCU of MT1389 is also the system control circuit of the whole player.
AE45164016 is a piece of 4M*16bit large capacity SDRAM, with the operation voltage of +3.3 V. In DV971, the 6ns module is adopted, with high speed and the maximum operation frequency up to 166MHz. Its main function is for operation buffer storage of decoding chip MT1389 to store the audio and video data stream in decoding.
29LV160BE is a piece of 16Mbit FLASH ROM, with the operation voltage of +3.3V, mainly for storing the user’s information including OSD character information, operational microcode and LOGO in start-up.
II. Audio and Video Output Circuit
1. Video output circuit
ABS530T(RU) can not only output three types of interlacing video signal (including CVBS composite video, S terminal Y-C signal and Y/Cb/Cr color difference signal), but also output two types of progressive video signal (including Y/Pb/Pr progressive color difference signal and VGA progressive signal).
The decoding chip MT1389 has built- in video encoding circuit for direct output of analogue composite video signal CVBS, S terminal, color difference signal and VGA signal.
The CVBS composite video signal is outputted from the Pin 198 of MT1389, the S terminal signal Y-C is outputted from the pins 194 and 196 of MT1389, the color difference signal and the R-B-G signal of VGA port is outputted from the pins 203, 202 and 200 of MT1389, the row and field synchronization signals of VGA port are outputted from the pins 207 and 205 of MT1389 respectively.
To mention specifically, the interlacing color difference signal, the progressive color difference signal and progressive R-B-G signal are outputted from the same pin, therefore the signal output shall be selected according to the ports of TV, otherwise there will be only sound but without picture display.
2. Audio DAC circuit, as the Figure VIII:
CLK
DQML DQMH
CKE
113
RAS CAS CS WE
BA0 BA1
15 39 38 37 18 17 19 16 20 21
137 156 157 140 139 142 138 145 143
DMA0—DMA11
DQ0—DQ15
77
A0—A21
AD0—AD7
DCE
DRD
DWR
RY/BY
BYTE
AE45164016 MT1389
29LV160BE 26
28
11
15
47
79
66
VD
GND
Figure 7
The main function of audio DAC circuit is to convert the digital audio signal decoded from MT1389 into analogue audio signal through D/A converting circuit, and output the audio signal after buffing and amplification to the next amplifying devices to restore it to voice.
The digital audio signals ASDATA0 decoded from MT1389 are outputted from the Pin 217 of MT1389, and delivered to the Pin 2 of audio DAC circuit CS4360. In the mean time, the left and right sound channel clock signal ALRCK, bit clock signal ABCK and the external audio clock signal ACLK required in D/A conversion are outputted from the pins 213, 214 and 215 of MT1389, and added to the pins 5, 3 and 4 of CS4360 respectively.
CS4340 will carry out D/A conversion on the digital audio signals from the channels of SDATA0 under the control of I2C(SDA, SCL) delivered by MT1389, and output the 2-way analogue audio signals from the pins 12 and 15 of CS4340 for the amplification in the next step. The related functions of various signals are as follows:
ASDATA0----Digital audio signal, including the signals of left and right channels
ALRCK-----Left and right bit clock signals, for separating left and right channels
ABCK-----Bit clock signal, for ensuring the accuracy of signal transmission
ACLK-----External clock signal, as the operation clock of CS4340
3. Audio output amplification circuit
The audio digital signals outputted from the decoding board are delivered to the power amplification part for processing after D/A conversion by IC CS4340.
Power amplification parts:
This model carries 2-channel power amplification, and adopts IC TDA7265 to amplify the sound channels. In rated power and the load resistance of 8 ohms, the output power of each sound channel can reach 6W. With the combination of active
The amplifying circuit adopts solely power IC amplification; therefore it has high
integration degree, simple circuit and easy control. The analogue signal outputted from IC4340 will be amplified by IC 4558, and delivered to N103 IC PT2315 for electronic sound volume regulating processing after the left and right sound channels are gated by N102 IC 4052, and then to IC TDA7265 for power amplification, and output.
IC TDA7265 is a double-channel power amplification IC, with standby and muting mode, without switching impact, but with the function of overcurrent and overload protection to prevent the IC from being damaged in abnormalities effectively. The IC can provide the maximum 30W power output for each channel in normal output mode, and when adopting BTL output, the power can reach 50W. Besides, the IC has strong anti-ripple function, and is featured with low power consumption in standby state.
The functions of the pins of IC TDA9843J are as follows:
Mark Pin Function of Pins
-VS 1 Negative supply
OUTPUT1 2 Output of first channel
+VS 3 Positive supply
OUTPUT2 4 Input of second channel
MUTE 5 Mute control line
-VS 6 Negative supply
IN+(2) 7 Channel 2 positive phase input
IN-(2) 8 Channel 2 antiphase input
GND 9 Grounding pin
IN-(1) 10 Channel 1 antiphase input
IN+(1) 11 Channel 1 positive input
Additionally, ABS530T(RU) also has optical and coaxial digital audio output. The digital audio signals after the decompressing of MT1389 are outputted from the Pin 225 of MT1389 in the format of IEC958, and added to the corresponding optical and coaxial terminal output after the regulation by phase inverter HCU04 of U205.
4. Muting and power-off quieting
The muting part of the player is controlled by the SCMUT and LRSWMUT outputted by MT1389. During starting up till reading out the disc, the two controlling lines will output high power level to mute the sound channels. After the disc reads out the signals, MT1389 will alternate the two controlling lines into lower power level to carry out normal signal output. When the remote control muting is pressed, the two controlling lines will be alternated into high power level to realize muting. For this model has just the amplification output of left/right channel, the central mute control line is applied to control the mute of the Karaoke.
5. Automatic Power-on Function
This model is equipped with the IC M41T81, so that it has the function of a clock; just like a clock, when you power it off, it is supplied with the power from one group of battery inside it; when the external power is cut off, the internal power supply is switched on. Therefore, the clock can still work in case of the power cut.
The most distinctive feature of this player is its automatic turnon function. Whenever you want to turn it on, you just preset the turnon time and then set it to a standby status. As a result, when the clock runs to the preset turnon time, the player will give a high level trigger to the STANBY at P50 of 1389, and the player will be turned on. The preset time is stored in the IC 24C02 while the clock is controlled by the 1389 and IC M41T81.
When the MUTE1 is at the high level, the triode V107 is turned on, so that the triode V103 and V104 are turned on, and the left/right channel signal is connected with the grounding, so that the mute is realized therefore.
This mute circuit includes three diodes in parallel connection; among the three control lines, when there is any one at high level, the MUTE signal outputs at low level, so that the power amplifier tube TDA7265 works normally; only when the three control lines are at low level synchronously, the triode V106 cuts off, so that the MUTE
outputs high level and the zener diode on the power board turns on at the reversed direction while the triode V100 turns on and pulls down the voltage at P5 of TDA7265, and finally the complete muting is realized.
In addition, there is a C128 1U/50V capacitor on the peripheral circuit of IC TDA7265 and the mute control line. The start-up mute is realized, for the voltage at both ends of the capacitor can not change abruptly at the very moment when the player is turned on, so as to make the level at the P5 to be low at the very moment of turning on the player. When the player is turned off, this capacitor discharges quickly via the resistor R114 so as to make the level at P5 to become low rapidly, so that the function of turnoff muting is realized.
5. Function of Tuning
ABS530T(RU)has the function of tuning, and can receive RDS signal. The signals of radio reception, the auxiliary channel input signal and the left and right sound signal outputted from CS 4360 are gated through N111IC CD4052, and the controlling A and B are controlled by the low and high power level of AUIN SL0 and AUIN SL1 emitted from MT1389.
The radio head control lines CE, DI, CL and DO are controlled by the array lines connected to MT1389 for the direct control by 1389. When any one of the controlling lines is in abnormality, the radio reception will be in malfunction. The RDS signal received by radio head will be delivered to the dedicated IC SAA6588 for processing.
Transformer output
Rectify and filtre
Stabilizing
Chapter IV Operating Principle of Power Circuit I. Block Diagram
Service voltage of amplifier
II. Analysis of Operating Principle
The player adopts linear power for power supply, and is featured with high power, stable power supply and low cost.
After the input voltage is switched via the insulating transformer, the two groups of AC outputs are rectified via the bridge rectifier composed of the VD100, VD101, VD102, VD103 and filtered via the C100, C101, C112 and C113, and then a group of ±20V DC supplies the power to the amplifier IC— such voltage outputs the stable ±12V via the IC 7812 and IC 7912. For the current is purified by two groups of filter capacitor, and the stabilizing IC is for the voltage stabilizing output, therefore the output voltage is relatively stable, with low ripple factor. After the rectifying and filtering, the other group of 8.4V AC voltage outputs +5V CD via the stabilization of IC 1805, then after the filtering and the stabilization via the stabilizing IC BA033, it outputs +3.3V to supply the power to the decoding IC. For this model adopts the linear power supply, and the voltage part and signal amplification part are on the same board, it’s better to process at the power purifying part in order to keep the effect upon the signals from the power supply surge. In doing so, the player can be ensured to have relatively low fluctuation in its service voltage in case of any change to the public power supply, so that the reliability of the player is ensured. The transformer has another group of voltage output, with an AC connecting directly to the panel so as to supply the filament voltage to the display; another group of voltage outputs a group of +27V DC after the rectifying and filtering, so as to supply the grid voltage to the display.
Additionally, this player has the timed power-on function. To ensure some circuits of this player to work normally without the external voltage so as to realize the purpose of timed start function, this player is added with a group of lithium battery supplying 3V voltage, so that the clock can still work normally when the player is turned off. When the power on the player is turned on, the VCC voltage effects on the diode VD118 and the diode cuts off, so the battery can not supply the power to the entire player. When the power on the player is turned off, the VCC is at zero without the external voltage, and the diode is positively conducted, so that the battery supplies the necessary voltage to the working part of the clock on the player to ensure its normal work.
Chapter 5: Panel control and VFD display circuit The panel mainly consists of VFD screen, driver IC6311, IR sensor HS0038A2
and button and indicator display circuit, mainly for accomplishing man-player dialogue and display of operation status.
The structural drawing is as follows:
Figure 11
MT1389 will control the U401 IC 6311 to display the operation status of the player through the VFDST status, VFDCK clock and VFDAT data, under the control of CPU built in MT1389, receive the user control commands sent by IC6311, and control the controlled circuit of the player to limit the player to operate in specified status.
When the user operates the panel buttons, the control command is sent to the IC 6311 through keyboard-scanning circuit, and through internal decoding drive, the IC 6311 outputs the control data from the pins 5 and 6 (VFDAT) to the built- in CPU of MT1389, which will realize the control on the controlled circuit, and control the VFD through IC 6311.
VFD401 is a vacuum fluorescence screen, and its biggest feature is its high brightness. Its operation principle is similar to the kinescope of TV. The pins 1, 2, 34 and 35 are for filament power supply; the pins 27-32 are GRID poles, each GRID has 16 different characters of display; the pins 4-19 are SEG poles, and the CPU control the SEG poles through its control on UPD6311, and display the characters of corresponding operation status on the screen.
The remote reception circuit mainly consists of remote receptors HS0038A2, of which
U401
IC6311
VFD
display
Keystoke control
U201
MT1389
Remote receiving
Panel indicator control
VFDST VFDCK VFDAT
the pin 1 is for grounding, the pin 2 for power supply, the pin 3 for output of reception signal, and they are all connected directly to the CPU in MT1389 to control the corresponding circuit.
Moreover, there are two digital potential device knobs on the panel, one is for track control, and the other is for volume control. Through array lines, they are connected to the pin 168,169,181 and 184 of MT1389 directly.
Troubleshooting I. Voltage on key points of ABS530T(RU)
Power circuit:
1. PVCC: Around 20V;
Decoding circuit:
Reset:
1. U205 (HCU04): 8 pins, around 3.3V;
2. MT1389: 110 pins, around 3.3V;
3. FLAHS ROM: 12 pins, around 3.3V
Clock:
27MHZ crystal oscillator two ends: Around 0.77V.
I2C bus SDA: 3.3V
I2C bus SCL 3.3V
Servo circuit:
LD01: 3.3V;LD02:3.3V
V301 and V302 electron collector LD voltage: 2.3V
BA5954 pin 4 base voltage: 1.4V
BA5954 pins 15 and 16 tracking drive output: Around 2.5V
BA5954 pins 17 and 18 feed drive output: Around 2.5V
BA5954 pins 13 and 14 focus drive signal output: Around 2.5V
BA5954 pins 11 and 12 main shaft drive output: Around 2.5V
BA5954 pin 1 focus control signal input: 1.4V
BA5954 pin 5 main shaft control signal input: 1.4V
BA5954 pin 26 tracking control signal input: 1.4V
BA5954 pin 23 feed control signal input: 1.4V
II. Troubleshooting of main troubles
NO
YES
NO
YES
NO
YES
NO
YES
YES
YES
Do not read disc
No picture, no sound, no VFD display
Check if power supply of MT1389 3.3V, 1.8V is right?
Check the voltage of power board, and check if the decoding board is short circuit to the grounding.
If the clock signal output XOand XI is right?
Check if clock oscillating circuit27M crystal oscillator, C275, C276, R224, R248 are damaged?
Check if reset signal URST# is in 5V high level?
Check if the reset circuit which is comprised by HCU04 and Q204 etc. is in working order?
If I2C bus, SDA, SCL 3.3V voltage is right?
Check if the AT24C16, CS4360,MT1389 SDA and SCL are short circuit to grounding, if R259 and R260 are in working order?
If SDRAM CLK, CS, RAS, CAS, WE communication signals are right?
If FLASH ROM, URST, DCE, DRD, DWR signals are right?
Check if the connection between MT1389, FLASH, SDRAM is right?
If the MT1389, SDRAM and FLASH are damaged?
NO
YES
YES
YES
NO
NO
YES
YES
YES NO
Check if the laser head has feed action.
Check if the feed control input of BA5954 Pin 23 is 1.4V?
Check if BA5954 pin 17,18 have 2.5V voltage output?
Check if BA5854 and the power supply 5V are in working order?
Check if the connection from BA5954 to MT1389 is open circuit?
Check feed motor and its connec tion.
Check if laser head has focus action?
Check if BA5954 pin 1has focus control voltage input of 1.4V.
Check if the connection from BA5954 to MT1389 is open circuit?
Check if the voltage output of BA5954 pin 13 and 14 are 2.5V?
Check focus coil and its connection.
Check if BA5854 and 5V power supply are in working order?
NO
YES
YES YES
NO
YES
YES
YES
NO
Check if there is laser coming out from laser head?
Check if the signal voltage of LD01, LD02 is 3.2V?
Check MT1389 and its connection.
Check if V301 and V302 electron collector voltage is 2.3V?
Check if the laser head and its array line are right?
Check if the main shaft rotates?
Check if the control voltage of BA5954 pin 5 main shaft is 1.4V?
Check if the connection from BA5954 to MT1389 is open circuit?
Check if BA5954 or main shaft motor is damaged? Check if BA5954 pin 11
and 12 output is 2.5V?
Check if MT1389 and its peripheral circuit is right?
Check if BA5854 and 5V power supply are in working order?
YES
NO
YES
NO
YES
NO
YES
Radio has no sound
Check if there is sound when disc playing or with assistant channel input.
Check if there is output on the radio head.
Check if N111control line is in working order.
Check main channel output line.
Check radio head control line, if there are no abnormity, then change the head.
Check these two control lines to MT1389 is open circuit or not?
Confirm if MT1389 is ok?
Attachment :Functions of IC Pins
I. MT1389
MT1389 adopts the LQFP 256 pin packaging and 3.3V/1.8V double voltage operation mode. It is a piece of large-scale CD-ROM and DVD-ROM preposition processing CMOS integrated circuit with excellent performance, and a single chip dedicated to CD/VCD/DVD player. It contains focusing servo error amplification; tracking servo error amplification and RF level output servo control, including the following main functions:
RF small signal preposition processing, mainly for carrying our corresponding processing and amplification on the RF signals transmitted from the light head part, adjusting the laser output power automatically, and identifying the VCD disc and DVD disc.
Digital servo processing can generate focusing, tracking, feed and main shaft servo control signals; digital signal processing, accomplishing the EFM/EFM + demodulating of RF signals.
MPEG-1/MPEG-2/MPEG4/JPEG Video decoding chip, which can not only realize the decoding of VCD and DVD, but also realize MPEG 4 network video decoding, being compatible to “network movie” disc, and decipher JPED pictures to realize the function of digital photo album play.
On audio aspect, it can not only realize AC-3/DTS double decoding, decipher MP3, and is also compatible to DVD-Audio decoding to achieve high-resolution sound restoration in 1000 times higher than CD.
By utilizing the 8032 microprocessor with built- in chip, MT1369E can also realize the system control function of player, which simplifies the circuit design substant ially.
The pin functions of MT1389 is as the following table:
Pin Name Function
1 AGND Analogue grounding
2 DVDA DVD-RF high-frequency AC coupling
signal A
3 DVDB DVD-RF high-frequency AC coupling
signal B
4 DVDC DVD-RF high-frequency AC coupling
signal C
5 DVDD DVD-RF high-frequency AC coupling
signal D
6 DVDRFIP DVD-RF high-frequency AC coupling
signal RFIP input
7 DVDRFIN DVD-RF high-frequency AC coupling
signal RFIN input
8 MA DVD-RAM main light beam RF DC
signal input A
9 MB DVD-RAM main light beam RF DC
signal input B
10 MC DVD-RAM main light beam RF DC
signal input C
11 MD DVD-RAM main light beam RF DC
signal input D
12 SA DVD-RAM auxiliary light beam RF DC
signal input A
13 SB DVD-RAM auxiliary light beam RF DC
signal input B
14 SC DVD-RAM auxiliary light beam RF DC
signal input C
15 SD DVD-RAM auxiliary light beam RF DC
signal input D
16 CDFON CD focusing error phase inversion input
17 CDFOP CD focusing error phase input
18 TNI 3 light beam auxiliary PD signal phase
inversion input
19 TPI 4 light beam auxiliary PD signal phase
input
20 MDI1 Laser power monitoring input 1
21 MDI2 Laser power monitoring input 2
22 LDO2 Laser power monitoring output 2
23 LDO1 Laser power monitoring output 1
24 SVDD3 Servo 3.3V power supply
25 CSO/RFOP Main servo signal output/RF phase
output
26 RFLVL/RFON RF level output/RF phase inversion
output
27 SGND Servo grounding
28 V2REFO Reference voltage 2.8V
29 V20 Reference voltage 2.0V
30 VREFO Reference voltage 1.4V
31 FEO Focusing error signal output
32 TEO Tracking error signal output
33 TEZISLV Tracking zero crossover error input
34 OP_OUT Sensing signal amplification output
35 OP_INN Sensing signal phase inversion input
36 OP_INP Sensing signal noninverting input
37 DMO Main shaft cont rol signal output
38 FMO Feed control signal output
39 TROPEN PWM Tray Open signal output
40 PWMOUT1/ADIN9 First-route pulse width demodulating
signal output/AD universal input
41 TRO Tracking control signal output
42 FOO Focusing control signal output
43 USB_VSS USB grounding
44 USBP USB data
45 USBM USB data
46 USB_VDD3 USB 3.3V power supply
47 FG/ADIN8 Motor sensing signal input/AD universal
input
48 TDI/ADIN4 Open position detecting signal input/AD
universal input
49 TMS/ADIN5 Close position detecting signal input/AD
universal input
50 TCK/ADIN6 BA5954 enabling signal output/AD
universal output
51 TDO/ADIN7 Tray close signal output/AD universal
input
52、97、122、152、173、221
DVDD18 Digital 1.8V power supply
53-58 IOA2-7 Micro-controller address bit 2-7
59 HIGHA0 Micro-controller address bit 0
60、61 IOA18-19 Micro-controller address 18-19
62、85、94、116、119、134、144、148、161、163、175、216、223
DVSS Digital grounding
63 APLLCAP Analogue phase lock loop external
capacitor
64 APLLVSS Analogue phase lock loop grounding
65 APLLVDD3 Analogue phase lock 3.3V power supply
66 IOWR FLASH read control signal
67-72 HIGHA3-7 Micro-controller address bit 3-7
73、80、108、127、141、155、167、182、204、
212
DVDD3 Digital 3.3V power supply
74、75 HIGHA1-2 Micro-controller address bit 1-2
76 IOA20 Micro-controller address bit 20
77 IOCS FLASH chip selection
78 IOA1 Micro-controller address bit 1
79 IOOE FLASH output enabling
81-84 AD0-3 Micro-controller address/data bit 0-3
86-88 AD4-6 Micro-controller address/data bit 4-6
89 IOA21/ADIN0 Micro-controller address bit 21/AD
universal input
90 ALE Micro-controller address enabling
91 AD7 Micro-controller address/data bit 7
92 A17 FLASH address bit 17
93 IOA0 Micro-controller address bit 0
95 UWR Micro-processor reading operation
96 URD Micro-processor reading operation
98 UP1_2-1_7 Micro-processor port
104 UP3_0 Micro-processor port
105 UP3_1 Micro-processor port
106 UP3_4 Micro-processor port
107 UP3_5 Micro-processor port
109 ICE Micro-processor correction mode
enabling
110 PRST Reset input
111 IR Remote control signal input
112 INT0 Micro-processor interruption 0
113 DQM0 DRAM input output shielding signal
114 DQS0 DRAM input output shielding signal
115 RD7 DRAM data
117-118 RD5-6 DRAM data
120-121 RD3-4 DRAM data
123-125 RD0-2 DRAM data
126 RD15 DRAM data
128-133 RD9-14 DRAM data
135 RD8 DRAM data
136 DQS1 DRAM input output shielding signal
137 DQM1 DRAM input output shielding signal
138 RWE DRAM writing enabling
139 CAS DRAM column address selection
140 RAS DRAM row address selection
142 RCS DRAM chip selection
143 BA0 DRAM section address 0
145 BA1 DRAM section address 1
146 RA10 DRAM address
147 RA0 DRAM address
149 RA1-3 DRAM address
153 RVREF/ADIN3 Reference voltage/AD universal input
154 RCLKB DRAM clock
156 RCLK DRAM clock
157 CKE DRAM clock enabling
158 RA11 DRAM address
159-160 RA8-9 DRAM address
162 RA7 DRAM address
164 RA4-6 DRAM address
168 RD13/ASDATA5 DRAM data/audio series data
169 RD27-30 DRAM data
174 RD26 DRAM data
176-177 RD24-25 DRAM data
178-179 DQM2-3 DRAM I/O shielding signal
180-181 RD22-23 DRAM data
183-188 RD16-21 DRAM data
189 DACVDDC D/A conversion 3.3V power supply
190 VREF Reference voltage
191 FS
192 YUV0/CIN
193 DACVSSC D/A conversion grounding
194 YUV1/Y Video signal YUV1 output/Y signal
output
195 DACVDDB D/A conversion 3.3V power supply
196 YUV2/C Video signal YUV2 output/C signal
output
197 DACVSSB D/A conversion grounding
198 YUV3/CVBS Video signal YUV3 output/CVBS signal
output
199 DACVDDA D/A conversion 3.3V power supply
200 YUV4/G Video signal YUV4 output/G signal
output
201 DACVSSA D/A conversion grounding
202 TUV5/B Video signal YUV5 output/B signal
output
203 YUV6/R Video signal YUV6 output/R signal
output
205 VSYNC/ADIN1 Field synchronization signal output/AD
universal input
206 YUV7/ASDATA5 Video signal YUV7 output/audio series
data
207 HSYNC/ADIN2 Row synchronization output/AD
universal input
208 SPMCLK
209 SPDATA
210 SPLRCK
211 SPBCK/ASDATA5
213 ALRCK Audio left and right sound channel clock
214 ABCK Audio bit clock
215 ACLK Audio DAC external clock
217-220 ASDATA0-3 Audio series data
222 ASDATA4 Audio series data
224 MC_DATA Microphone digital audio input
225 SPDIF Digital audio signal output
226 RFGND18 RF signal grounding
227 RFVDD18 RF signal 1.8V power supply
228 XTALO Clock output
229 XTALI Clock input
230 JITFO RF small signal output
231 JITFN RF small signal phase inversion and
amplification input
232 PLLVSS Phase lock loop grounding
233 IDACEXLP
234 PLLVDD3 Phase lock loop 3.3V power supply
235 LPFON Amplifier loop wave filtration output
236 LPFIP Amplifier loop wave filtration input
237 LPFIN Amplifier loop wave filtration input
238 LPFOP Amplifier loop wave filtration output
239 ADCVDD3 A/D conversion 3.3V power supply
240 S_VCM
241 ADCVSS A/D conversion grounding
242 S_VREFP
243 S_VREFN
244 RFVDD3 RF 3.3V power supply
245 RFRPDC DC RF error signal input
246 RFRPAC AC RF error signal input
247 HRFZC High-frequency RF signal zero
crossover checking
248 CRTPLP
249 RFGND RF grounding
250 CEQP
251 CEQN
252 OSP
253 OSN
254 RFGC
255 IREF Reference current
256 AVDD3 Analogue 3.3V power supply
Ⅱ.BA5954
BA5954 is a piece of servo drive single-piece integrated circuit, with built- in 4-channel BTL drive circuit. It can receive directly the PWM control signal outputted by digital servo IC, and with internal wave filter and drive amplifier, it pushes the execution part in the servo mechanism to accomplish the focus ing, tracking, feed and main shaft drives. BA5954 adopts the packaging of 28 pins.
Note: The 28 pins of BA5954 are for outputting effective control signal, which is provided by the 50 pins of MT1389. When the signal is in high power level, BA5954 output is in validity, while the signal is in low power level, BA5954 will not be activated, and its output ports are in the state of cutoff.
The functions of pins of BA5954 are as the following table:
Pin Name Function
1 VINFC Focusing control signal input
2 CF1 External feedback loop
3 CF2 External feedback loop
4 VINSL+ Forward control input, connected to the reference voltage
5 VINSL- Main shaft control signal input
6 VOSL External feedback resistance
7 VINFFC Focusing feedback signal input
8 VCC 5V power supply
9 PVCC1 5V power supply
10 PGND Grounding
11 VOSL- Main shaft drive inverse voltage output
12 VO2+ Main shaft forward voltage output
13 VOFC- Focusing drive inverse voltage output
14 VOSC+ Focusing drive forward voltage output
15 VOTK+ Tracking drive forward voltage output
16 VOTK- Tracking drive inverse voltage output
17 VOLD+ Feed drive forward voltage output
18 VOLD- Feed drive inverse voltage output
19 PGND Grounding
20 VINFTK Tracking feedback signal input
21 PVCC2 5V voltage
22 PREGND Grounding
23 VINLD Feed control signal input
24 CTK2 External feedback loop
25 CTK1 External feedback loop
26 VINTK Tracking control signal input
27 BIAS 1.4 reference voltage input
28 STBY Enabling control signal
III. 29LV160BE
29LV160BE is a type of 16Mbit FLASH memory manufactured via 0.23um technology, with 16 byte width DQ0-DQ15, memory capacity of 16M bit, operation voltage of 3.3V, and packaging method of 48 pins TSOP. The specific operation mode is as the following table:
DQ8~DQ15 Operation
status CE OE WE RESET A0~A19 DQ0~QD7 BYTE:high
level
BYTE: Low
level
Read L L H H Ain Dout Dout High resistance
Write L H L H Ain Din Din High resistance
Waiting H × × H × high
resistance high resistance high resistance
Output forbidden
L H H H × High
resistance High resistance High resistance
Reset × × × L × High
resistance High resistance High resistance
The functions of pins of 29LV160BE are as the following table:
Pin Name Function
15 RY/BY Ready/system is busy
1~9、16~25 、48 A0~A19 20-byte address bus
26 CE Chip enabling
27、46 VSS Grounding
28 OE Output enabling
29~36、38~44 DQ0~DQ14 15-byte data bus
37 VCC 5V power supply
45 DQ15/A-1 Character extension mode as the data line; byte expansion
mode as the address line
47 BYTE Adopting 8-byte (in low level) or 16-byte output mode (in
high level)
11 WE Write enabling
12 RESET Reset, valid in low level
10、13、14 NC Neutral pin
IV. AE45164016
AE45164016 is a type of 64Mb (4Banks×1M×16bit) CMOS synchronization DRAM, featured with large memory and high speed. Its operation power voltage is 3.0V~3.6V, and it is packaged in 54-pin TSOP.
The functions of pins of AE45164016 are as the following table:
Pin Name Function
1、14、27 VDD +3.3V power supply
2、4、5、7、8、10、11、 13、42、44、45、47、48、
50、51、53 DQ[0~15] 16-byte data bus
3、9、43、49 VDDQ +3.3V power supply
6、12、46、52 VSSQ Grounding
28、41、54 VSS Grounding
15 LDQM Data I/O shielding signal
16 WE Write control signal
17 CAS Column address gate signal
18 RAS Row address gate signal
19 CS Chip selection signal
20 SD-BS0 Section address 0 gate signal
21 SD-BS1 Section address 1 gate signal
22~26、29~35 MA[0~11] 12-byte address bus
36、40 NC Neutral pin
37 CKE Clock enabling signal
38 CLK System clock input
39 UDQM Data I/O shielding signal
V. CS4360
CS4360 is a type of 6- channel audio D/A conversion circuit manufactured by CIRRUS LOGIC Company. It can achieve digital sound volume regulation through software, with 1dB regulation coefficient per level, 119dB attenuating scope and +3.3V or +5V voltage power supply. It adopts 28-pin packaging, and has the following characteristics:
① 24-byte sampling precision
② Maximum 192KHZ sampling frequency
③ Dynamic range : 102dB
④ Signal/noise ratio : -90dB
⑤ Low power consumption (105mW under +3.3V operation voltage)
The functions of pins of CS4360 are as the following table:
Pin Name Function Pin Name Function
1 VLS Series audio power supply, +3.3V 15 M2 Mode 2
2 SDIN1 Series audio data 1 input 16 FILT+ In-phase feedback voltage output
3 SDIN2 Series audio data 2 input 17 VQ Static operation voltage external wave filter
4 SDIN3 Series audio data 3 input 18 MUTEC3 3 muting control output
5 SCLK Bit clock 19 AOUTB3 Analogue audio 3 output
6 LRCK Left and right clock 20 AOUTA3 Analogue audio 3 output
7 MCLK Main clock input 21 GND Grounding
8 VD Digital power supply 22 VA Analogue power supply, +5V
9 GND Grounding 23 AOUTB2 Analogue audio 2 output
10 RST Reset input 24 AOUTA2 Analogue audio 2 output
11 SCL Series control clock 25 MUTEC2 Output 2 muting control
12 SDA Series control data 26 AOUTB1 Analogue audio 1 output
13 CS/M1 Chip selection/mode 1 27 AOUTA1 Analogue audio 1 output
14 VLC Control port power supply, +3.3V 28 MUTEC1 Output 1 muting control
ATTACHMENT:
I: CIRCUIT DIAGRAM
1) DECODER BOARD:
1 2 3 4 5 6
1 2 3 4 5 6
A
B
C
D
E
F
A
B
C
D
E
F
DVDA2
CEQ
P25
0
DVDB3
DVDC4
DVDD5
AGND1
OSP
252
OSN
253
DVDRFIP6
DVDRFIN7
MA8
MB9
MC10
MD11
SA12
SB13
SC14
SD15
CDFON16
CDFOP17
TNI18
TPI19
MDI120
MDI221
LDO222
LDO123
AV
DD
325
6
V2REFO28 SGND27
VREFO30V2029
TEO32 FEO31
USB_VSS43
RFLVL/RFON26 CSO/RFOP25
TEZISLV33
OP_OUT34
OP_INN35
OP_INP36
FOO42 TRO41
USBM45
TROPENPWM39
PWMOUT1/V_ADIN940
USB_VDD346
FMO38DMO37
HIGHA059
HIG
HA
175
HIG
HA
274
HIG
HA
372
HIG
HA
471
HIG
HA
570
HIG
HA
669
HIG
HA
768
DVDD1852
AD
791
DVSS62
APLLCAP63
AD
587
AD
486
APLLVSS64A
PLLV
DD
365
AD
384
AD
283
AD
182
AD
081
DV
DD
373
IOA
093
IOA253
IOA354
IOA455
IOA556
DV
DD
380
IOA657
IOA758
A16
67
A17
92
DV
SS85
IOA1860
IOA1961
IOA
2076
IOA
178
AL
E90
IOO
E79
IOW
R66
IOC
S77
DV
SS94
UW
R95
UR
D96
DV
DD
1897
UP1
_298
UP1
_399
UP1
_410
0
UP1
_510
1
UP1
_610
2
UP1
_710
3
UP3
_010
4
UP3
_110
5
DV
SS11
6
UP3
_410
6
UP3
_510
7
RFV
DD
324
4R
FRPD
C24
5
DV
DD
310
8
ICE
109
PRST
110
IR11
1
INT
011
2
DV
DD
1812
2
DQ
M0
113
DQ
S011
4
RD
711
5
RD
611
7
RD
511
8
RD
412
0D
VSS
119
RD
312
1
RD
212
3
RD
112
4
RD
012
5
RD
1512
6
RD
1412
8D
VD
D3
127
RD13 129
YUV0/CIN 192
FS 191
VREF 190
DACVDDC 189
RD16188
RD17 187
RD18 186
RD19 185
RD20 184
RD21 183
DVDD3 182
RD22 181
RD23180
DQM2 179
DQM3 178
RD24 177
RD25 176
DVSS175
RD26 174
DVDD18 173
RD27172
RD28 171
RD29 170
RD30 169
DVDD3167RD31/ASDATA5 168
RA4 166
RA5 165
RA6 164
DVSS 163
RA7162
DVSS 161
RA8 160
RA9159
RA11 158
RCLK 156CKE 157
DVDD3 155
RCLKB154
RVREF/V_ADIN3 153
DVDD18 152
RA3 151
RA2 150
DVSS 148RA1 149
RA0 147
RA10146
BA1 145
DVSS 144
BA0 143
DVDD3141RCS 142
RAS 140
CAS 139
RWE138
DQM1 137
DQS1 136
DVSS 134RD8 135
RD9133
RD10 132
RD11 131
DR12 130
RFG
ND
249
IRE
F25
5
SVDD324
RFG
C25
4
JIT
FN23
1
JIT
FO23
0
LPFO
P23
8
LPF
IN23
7
CR
TPL
P24
8
HR
FZC
247
LPF
IP23
6
CEQ
N25
1
RFR
PAC
246
S_V
REF
N24
3
AD
CV
SS24
1S_
VR
EFP
242
S_V
CM
240
AD
CVD
D3
239
PLLV
DD
323
4LP
FON
235
PLLV
SS23
2
MC
_DA
TA
224
SPD
IF22
5
ASD
ATA
422
2
DV
DD
1822
1
ASD
ATA
322
0
ASD
ATA
221
9
RFG
ND
1822
6
ASD
ATA
121
8
ASD
ATA
021
7
AC
LK
215
ALR
CK
213
AB
CK
214
DV
DD
320
4
SPB
CK
/ASD
ATA
521
1
SPLR
CK
210
SPD
ATA
209
SPM
CL
K20
8
DV
DD
321
2
HSY
NC
/V_A
DIN
220
7
YU
V7/
ASD
ATA
520
6
VSY
NC
/V_A
DIN
120
5
YU
V6/
R20
3
YU
V5/
B20
2
DA
CV
SSA
201
YU
V4/
G20
0
DA
CV
DD
A19
9
YU
V3/
CV
BS
198
DA
CV
SSB
197
YU
V2/
C19
6
DA
CV
DD
B19
5
YU
V1/
Y19
4
DA
CV
SSC
193
IDA
CE
XL
P23
3
USBP44
FG/V_ADIN847
TDI/V_ADIN448
TMS/V_ADIN549
TCK/V_ADIN650
TDO/V_ADIN751
AD
688
IOA
21/V
_AD
IN0
89
DV
SS21
6
DV
SS22
3
XT
AL
O22
8X
TA
LI
229
RFV
DD
1822
7
U201
MT1389
C201 1uF
C202 1uF
C203 1uF
C204 1uF
C205 DNSC206120p
C
B
A
DRFO
R201 0RR202 0RR203 0RR204 0R
CBAD
EF
MDI1MDI2
LDO2LDO1
RFOPRFON
V2P8V20V1P4
FEOTEOTEZISLVOPOOP-OP+
DMOFMOTROPEN
C207 104
R20
7
R20
6
R20
5C209
C208
TROFOO
L201FB
89V33
USBVDDADINTROUTTRINSTBYTRCLOSEV18A2A3A4A5A6A7A8A18A19
C214104
C2151500pF
R2120R
R210 18KR211 20K
C213330pF
C212330pF
C211104
C210153pF
R209 15KR208 10KDMSO
FMSO
TRSOFOSO
V1P4
V1P4
ADIN
L202FB
89V33PW
R#
A16
A15
A14
A13
A12
A11
A10
A9
A20
PCE
#A
1PR
D#
AD
0A
D1
AD
2A
D3
AD
4A
D5
AD
6A
21
AD
7A
17A
0
V18
VFD
CK
VFD
AT
VFD
STSC
LSD
A
RX
DTX
D
UR
ST#
IR
DQ
M0
DQ
S0D
Q7
DQ
6D
Q5
DQ
4D
Q3
DQ
2D
Q1
DQ
0D
Q15
DQ
14 R2131K
DQ9DQ10DQ11DQ12DQ13
DQ8
RAS#CAS#WE#DQM1LIMIT
CS#BA0
BA1DMA10
DMA0
DMA1DMA2DMA3
DMA9DMA11DCKEDCLK
DMA8
DMA7
DMA6DMA5DMA4
J4
RDSCEAUIN_SL0AUIN_SL1J3
RDSID
RDSSYNCPOWER_ON_RST
VDATA3RDS_DATACLK
DTS_DO
DTS_DIDTS_CE
VOICE_DETTUNER_ON
DTS_CL
R214510R
C216FS
89V33 V18
L203FBDACVDD3 DV33
C217104
TC20110uF/16V
Y1
DV33A
Y2
Y3
Y4
Y5
Y6
VSYNC#
HSYNC#
SPMCK
SPD
ATA
SPLR
CK
R215 1K
ALR
CK
AB
CK
AC
LK
R216 (DNS)R217 (DNS)R218 (DNS)R219 (DNS)
ASD
AT0
ASD
AT1
ASD
AT2
AM
UT
EV
18
R220(DNS)
ASP
DIF
RFV
18
XI
XO
JIT
FOJI
TFN
C21
80.
47uFTC202
10uF/16V
PLLV
DD
3C21
90.
047u
F
C22
00.
047u
F
C22
11u
FA
DCV
DD
3
RFV
DD
3V
REF
NV
REF
P
C22220pFC223
1000pFR22
4
100K
C22
410
4
C22
50.
033u
F
C22
610
4
C22
710
4
C22
810
4
R22315K
C229104
V1P4
AVDD3
89V
33
C233 100pF
R227 750K
JITFNJITFO
L205FB
L206
4.7R
L207 FB
L208FB
L250FB
C234
104
C235104
C236104
C237104
RFV33
PLLVDD3
ADCVDD3
RFVDD3
RFSVDD3
C238104
C239104
C2401uF
VREFN VREFP
C243104
TC20447uF/16V
C242104
TC20547uF/16V
C241104
TC20647uF/16V
C250104
C251104
C252104
C244104
C245104
C246104
C247104
C249104
C248104
C253104
C254104
C256104
C257104
C258104
V18
L235FB
L236 FBAVDD3
DV33
234
1
56
8910
7
11121314
161718
15
1920
222324
21
XS30124P0.5mm
C312104
L318 FBSMT
L316 FBSMT
L312 FBSMTL314 FBSMT
L311 FBSMTL310 FBSMT
L308 FBSMTL307 FBSMTL306 10uHL305 FBSMTL304 FBSMT
L303 10uH
L319 FBSMTL320 FBSMTL321 FBSMTL322 FBSMTL323 FBSMTL324 FBSMT
C301104
TC301220uF/16V
C311104
AVCC
E
A
V3012SB1132-S
V3022SB1132-S
R30110R
R30210R
TC30247uF/16V
TC30347uF/16V
LDO-AV33
LDO-AV33
LDO2
LDO1
R303 0R
L301 FBSMT
MDI1
F
L317 FBSMT
B
RFOIOADC
V20
R309
10K
R308
100KR311
10K
R310
100KV3032SK3018-S
V3042SK3018-S
V3053904-S
IOA
AVCC
L234FB
C230104
V18 RFV18
R31520K
R31
410
K
R316 20K
C306151
C305104
C302104
C303104TC304
47uF/16V
R3061R
R3071R
R312 20K
R3051R
R3041R
C304 151
VINFC1CF1 2CF2 3
VINSL+ 4VINSL- 5VOSL 6VINFFC 7
GN
D30
VCC8PVCC1 9PGND 10
VOSL- 11VO2+ 12VOFC-13VOFC+ 14VOTK+15
VOTK-16
VOLD+17
VOLD-18
PGND19
VNFTK20
PVCC221
GN
D29
PREGND22
VINLD23
CTK224
CTK125
VINTK26
BIAS27
STBY28
U302BA5954
TRSOV1P4STBY
SL+SL-
FMSO
MO_VCC
GND
MO_VCC
SP-SP+
V1P4
FOSO
DMSO
L302FB
VCC
R31310K
R325470R
R327470R
R321 1R
R320150K
R319150K
R322680K
R317 680K R318 0RC307 2200pF
ADINOP-OP+
V1P4SP-
OPO
C308DNS
V3088050
V3078050
V3068550
V3098550
R3231.5K
R3241.5K
R339
10K
R326
2.2R\1/4W
TC30847uF/16V
TC30947uF/16V
LOAD+LOAD-
VCC
TRCLOSE
V3109014-S
TROPEN
(TRCLOSE1) (TROPEN1)
(TRCLOSE1)
TROPEN
LOAD-LOAD+
C309104
SP+
SL+SL-LIMIT
L309FB DV33
R228 0R
TDITMSTCKTDO
R216410K
DV33
C231104TC211
220uF/16V
L238FB
DV33
R340 1R
C3102200pF
RFSVDD3
R331 0RDQS0
R297 0RR298 0RR299 0R
PWR#PCE#PRD#
DWR#DCE#DRD#
AD
C_D
AT
R2165 0R
R2166 0R
C2167104
C2174104
SCMUTE
C2175
104
TC247
47uF/16V
DA
VN
INL
RSW
MU
TE
R261 33R
ADC_DAT
R26
8
33R SP
BC
K
R2690R
AU
DIO
_RST
TC20347uF/16V
234
1
56
XS303
XS06
234
1
5
XS302
XS05
TROUT
TRIN
C343
104
C344
104
C345
104
C346
104
URST#
C277
104
TC24847uF/16V
R32810K
R32910K
DV33
SPBCK
IR
SCMUTE
1 4 5 6
1 2 3 4 5 6
A
B
C
D
E
F
A
B
C
D
E
F
L232 FBSMT
L230 FBSMTL231 FBSMT
R2304.7K
VFDSTVFDAT
VFDCK
234
1XS202
XS04(DNS)
DV33RXDTXDGND
C267104
TC21047uF/16V
C281104
C2162104
C2163104
SD33L226 FBDV33
C278102
TC217100uF/16V
VD2011N4148
R25210K
R2541K R256
33R
5 6
U205CHCU04
URST#
DV33
DC/NC1
RST_/NC2
WP/RST_3
VSS4
VCC 8
RST/WP 7
SCL6
SDA 5
U202AT24C16X4050
SDASCL
C259104
VCC
R25910K
R26010K
C26347pF C264
47pF
C26547pF
J4
A619
A1717
RY/BY15
A1816
NC14
A124
NC10
NC13
A97
A151
A142
A133
A115
A106
A88
A199
WE11
RESET12
A520
A421
A322
A718
DQ830
DQ9 32
DQ10 34
DQ2 33
DQ335
DQ15/A-1 45
DQ12 39
DQ11 36
DQ642
A16 48
BYTE 47
Vss 46
DQ744
DQ14 43
DQ13 41
DQ5 40
DQ4 38
Vcc37
DQ0 29
OE28
Vss 27
DQ1 31
A223
A124 CE 26
A0 25
U214 8M_FLASH(TSOP)
A15A14A13A12A11A10A9
A18
A7A6
A5A4A3A2
A16
GNDA0AD7
AD6
AD5
AD4VD
AD3
AD2
AD1
AD0DRD#GNDDCE#A1
A8R2414.7K(DNS)
VP
R24
04.
7K
R23
94.
7KR
238
4.7K
VD
C279104
A17
A19
TC23747uF/16V
R255
0R
VD DV33
AA20
L204
FB(DNS)
VCC
R253
0R(DNS)
L233 FBSMT
C26647pF
J3
C260102(DNS)
C261102(DNS)
X201
27MHz
R246 100K
C27527pF
C27627pF
XI R244
0R
XOR248
0R
10 11
U205E
HCU04
ASPDIFIEC958
R2500R(DNS)
R251
0R
A023
A124
A225
A326
A429
A530
A631
A732
A833
A934
A10/AP22
A1135
BA0/A1320
BA1/A1221
CLK38
CKE37
/CS19
/RAS18
/CAS17
/WE16
DQML15
DQMH39
NC36
NC40
VSS54
VSS41
VSS28
DQ02
DQ1 4
DQ2 5
DQ3 7
DQ4 8
DQ510
DQ6 11
DQ713
DQ8 42
DQ9 44
DQ1045
DQ11 47
DQ1248
DQ13 50
DQ14 51
DQ15 53
VCC 1
VCC14
VCC 27
VCCQ 3
VCCQ9
VCCQ 43
VCCQ49
VSSQ 6
VSSQ 12
VSSQ 46
VSSQ52
U211
SDRAM 64M
DMA0DMA1DMA2DMA3DMA4DMA5DMA6DMA7DMA8DMA9DMA10MA11BA0#BA1
SDCLKSDCKE
DCS#DRAS#DCAS#DWE#
DQM0DQM1
DQ0DQ1DQ2
DQ4DQ5DQ6DQ7DQ8DQ9DQ10DQ11DQ12DQ13DQ14DQ15
DQ3
SD33
SD33
R23133R
R23233R
DM
A11
BA
1
C2160104
L222 FB
L223 FB
C270
104
C271
104TC208220uF/16V
TC207220uF/16V
DV33
AVCC
VCC
C272104
TC213220uF/16V
L227FB
DV33A
IN1
GN
D2
OU
T3
U208BA033FP(DNS)
VCC DV33
L228
FB
VD2021N4004(DNS)
VD2031N4004(DNS)
IN3
GN
D1
OU
T2
U209LM1117MP-1.8
C273104
TC209220uF/16V
R2423.3K
R2431.2K
V18
DV33
AA21
R21
404.
7K
R25
70R
R25
80R
A21
A20
R264 33RR263 33R
R265 33RR266 33RR267 33RR2162 33R
DCLKDCKE
CS#RAS#CAS#WE#
DWR#
IR
C215827pF(DNS)
L2492.7uH(DNS)
C2168104
C2170104
C2171104
C2173104
L209 FB
R2159
0R
URST#
R291 220ACLK SACLKR292 220R293 220R294 220R295 220R296 220
ABCK SBCLKALRCK SLRCKASDAT0 SDATA0
SDATA1SDATA2
ASDAT1ASDAT2
Y1Y2
Y3
Y4Y5Y6
VGND
VCC
IEC958 R233
75R
AUDIO_RSTSDATA0
GNDSACLKGNDSBCLKSLRCKAUIN_SL0AUIN_SL1SCLSDA
DTS_DODTS_CLDTS_DIDTS_CETUNER_ONDAVNIN
RDSID
R249
4.7K
VCC
Q204
9016
DV33 C274
104
SDATA1SDATA2
LRSWMUTE
VCC
R2354.7K
GND
VOICE_DETCLK
POWER_ON_RST
12 13
147
U205FHCU04
R225 0R226 0ADC_DAT
AUDIO_RSTSDATA0SDATA1SDATA2
GNDSACLK
GNDSBCLKSLRCK
AUIN_SL0AUIN_SL1
SCLSDA
SCMUTE
LRSWMUTEDTS_DODTS_CLDTS_DIDTS_CE
TURN_ONDVDNIN
GND
RDSID
Y1Y2
Y3
Y4Y5Y6
SPDIFVGND
SPDIF
123456789
10
XS103
CON10
A19A18
A7A6
VD
AD3
AD2
AD0
HSYNC#VSYNC#VDATA3
HSYNC#VSYNC#VDATD3
VCC
DV33
AVCC
AUDIO_RST
SACLKSBCLK
SLRLK
ADC_DAT
L240FB
+C2861UF
+C2871UF
R190
47K
C283
0.1u
C282
47UF/16V
C284
0.1u
C285
10U/16V
VL1
MCLK2
SCLK3
SDATA4
VA5
GND6
LRCK7
DIV8
DIF9TST 10
FIL+ 11R_GND 12RIN 13LIN
14VQ 15/RST 16
N107
CS5333
L241FB
4.7KR100
AVCC
DV33
12345
XS104
CON5
+12VGND-12VOK_AOK_T
+12V
-12V
SCMUTE
R195
4.7K
DV33
X11
X22
INT3
GND4
SDA5SCL 6SQW7VCC 8
N106
M41T81
VD119 1N4148
C186
20P
C187
20P
G10132.768K
SCLSDA
VCC
R193 4.7K
BT
C189 104C190 104
C191104
1 2 3 4 5 6
A
B
C
D
E
F
654321
F
E
D
C
B
A
AUDIO RSTSDATA0SDATA1SDATA2DGNDSACLK
SBCLKSLRLKAUIN SL0AUIN SL1
DTS DODTS CLDTS DIDTS CETUNER ONDAVNIN
MRO1
MPTH2
TCON3
OSCO4
OSC15
VSSD6
VDDD7
DAVN8
SDA9
SCL10 PSWN 11
MAD12
AFIN13
VDDA 14
VSSA 15
MPX 16
Vref 17
SCONT18
CIN19
LVIN 20N105
SAA6588
123456789
10XS105
CON8
GNDDTS CEDTS DIDTS CLDTS DORDST+12VTROUT
AGNDTLOUT
R162
220
R160
1K
R166
470K
VCC
VCC
TC14047U/16VC136104
SCL
SDA
DAVNIN
R163
220RDSID
C158223 RDSCE
C16082P
C16147P
G1004.332MHz
C159150P
C175
330P
C157
473
RDSSYNC
TC174
2.2U/16V
3
21
84
N101A
IC4558
R100
6.8K
R102
4.7K
C116122
C119102
C128
82P
R116 33K
R118
470
5
67
N101B
IC4558
R101
6.8K
R106
4.7K
C117122
C120102
C129
82P
R117 33K
R122
470
R156
5.6K
R127 470
C124
102
C126
102
C125
102
R128 470
R134
10K
R157
5.6K
C17820P
C127
102
R158 1K
R121470
R14647K
C134 104
C18120P
C179
20P
R159 1K
R14547K
TC101
10U/16V
TC104
10U/16V
TC105
10U/16VTC106
10U/16V
TC107
10U/16V
VCC
+12VDV33
RDS
SCMUTLRSWMUT
-12VGND
DGND
AVCC
SLSD
DGND
DGND
RDSID
TC133
104
TC154
220U/16V
R13610K
R1134.7K
V105C9014
V1028550+12V
TUNER ON
T+12V
V104S8050
V103
S8050MUTE1
R165 220
R164 220
TC142
47U/16V
TC141
47U/16V
TC155
220U/16V
C139
47U/16V
TC156
220U/16V
V107 8550
R13510K
R13310K
V100C9014 R104
4.7K
R1034.7K
TC13047uF/16V
R15147K
R15247K
R132
10K
VCC
R131
10K
TC109
100U/16V
TC110
10U/16V
TC108
10U/16V
R140100K
R139
100K
R105
4.7K
RST1
SDATA2
SCLK/DEM13
LRCK4
MCLK5
DIF16
DIF07
DEM08
FILT+9
VQ 10
REF_GND 11
AOUTR 12
AOUTL 15
AG
ND
13V
A14
MUTEC16
N100
CS4340
+5V
AUDIO RST
SDATA0
C132
104
C131
104
C113
103
C114
103
C138
104
C137
104
C118
122
C121102
C111
103
SBCLKSLRLK
SACLK
TC102
10U/16V
TC10310U/16V
TC100
220U/10V
BIN_R 14
AGND3
NC8
TREBR5
RIN6
LOUD_R7
NC10 LIN 11
REF1
VDD2
BIN_L 12
TREBL4
LOUD_L9
BOUT_L 13
BOUT_R15
ROUT16
LOUT 17
DGND 18
DATA 19
CLK 20N103PT2315
X012
X114
X215
X311
Y01
Y15
Y22
Y34
INH6
A10
B9
VEE 7
X 13
Y3
VDD 16
VSS 8
N102
CD4052
R125 4.7K
R123 4.7K
R143
47K
R141
47K
R124 1K
R119 1K
R142
100K
R144
100K
R2
L2
R120
100
R126
100
SLB
SLA
+5.1V
-5.1V
AUX_R
AUX_L
R137100K
R138100K
AUX_R
AUX_L
TUNER_R
TUNER_L
TUNER_R
TUNER_L
C122
102
C123
102
12345678
XP102CON7
VD1155.1V
VD114
5.1V
+5.1V
-5.1V
AUIN SL0
AUIN SL1
VCC
V101
C9014
R108
4.7K
R1074.7K
VCC
SLA
SLB
LINE_R
LINE_L
R130 10R129 10 SCL
SDA
+12V
+5V
C112
103
C143562
C144562
LINE_R
SCL
SDA
LINE_L
C145 683
C146 683
C147 683
C148 683
R17675
C17247P
C17347P
L115
1.8uHY1 SV_CR182
0VD1131N4148
VD1121N4148
VCC
R17475
C16747P
C16947P
L113
1.8uHY2 SV_YR180
0VD1091N4148
VD1081N4148
VCC
R17375
C16647P
C16847P
L112
1.8uHY3 CVBSR179
0VD1071N4148
VD1061N4148
R17175
C16247P
C16447P
L110
1.8uHY4 G/YR177
0VD1031N4148
VD1021N4148
VCC
L1
2
R3
XC100A
AV4
L1
2
R3
XC101A
AV4
L100
L
L103
LAUX_L
AUX_R
L101
L
L102
L
LINE_R
LINE_L
VCC
R
L
1234567
X103
DASW-02
L106
L
L107
L
L109
L
R17275
C16347P
C16547P
L111
1.8uHY5 B/UR178
0VD1051N4148
VD1041N4148
VCC
R17575
C17047P
C17147P
L114
1.8uHY6 R/VR181
0VD1111N4148
VD1101N4148
VCC
L4
5
R6
XC100B
AV4
L4
5
R6
XC101B
AV4
L104
L
L105
L
L108
L
C17720P
C176
20P
C180
20P
R168
220 R169100K
R167 68
C135
104VCC
SPDIF
R110 4.7K
R14847K
R111
4.7K
R14747K
R109 4.7K
TC15216V/100U
TC151
16V/100U
TC14916V/10U
TC150 16V/10U
Out11
IN1-2
IN1+3
Vss4
IN2+5
IN2-6
Vout2 7
VDD 8
N104PT2308
R112
4.7K
TC153 16V/100U
PH5V
PH_R
PH_L
R14947K
R15047K
1234
XP104
CON4
R1154.7K
C115103
R114
4.7K
VD1011N4148 V106
8050VD100 1N4148
VCC
MUTE
PH_SW
MUTE1MUTE
LGND
R
TO POWER BOARD
1234
XS102
CON4
PH_SW
TO PANEL BOARD
PH_R
PH_LGND
PH_SW
PH5V
+12v
-12V
R183 0
R184
75K
C183
104
VD116 1N4148LRSWMUT
R186
220VD1179.1V
TC184
100U/16V
C185
103
AUDIO_RSTSDATA0SDATA1SDATA2
GNDSACLK
GNDSBCLKSLRCK
AUIN_SL0AUIN_SL1
SCLSDA
SCMUTELRSWMUTE
DTS_DODTS_CLDTS_DIDTS_CE
TURN_ONDVDNIN
GND
RDSID
SPDIF
Y4
Y1
Y2
Y3
Y5
Y6
GND1
VCC2
INPUT3
R?
TORX178A
12345678910
XS101
CON10
FR
FL
FL
FR
B/U
R/VG/Y
A+12V
CVBS
R18975R
V110
8050
C188104
VCC
VSYNC#
V1088050
R153
1KR187
2.2K
A+12V
VDATA3
V1098050
R15533R
R188
2.2K
+12VR154
330
R1704.7K
VCC
HSYNC#
MUTE1R185 10K
V1119014
R161 4.7KR191
4.7K
R198
4.7K
R1970
R194
4.7K
L116
4.7
R1990
+5.1V
BT
2)POWER BOARD
1 2 3 4 5 6
A
B
C
D
E
F
654321
F
E
D
C
B
A
12345
XS105
CON5
FL102
T2AL 250V
VD105 RL254
C119220U/16V
C109
473
C117
6800U/16V
C107473
C118
220U/16V
C108
473
DV33
12345
XS101
CON5
F2F1
-27VDGND
DVcc
~01
~14V/2A
FL103 T4AL 250V
12
XS103
CON2
12
XS105CON2
C122472
C123104
12
XS104
CON2
~14V/2A~0
VD104 RL254
~8.4V/2A
~01
12345678
XS101
CON7
+12VAGND-12VDGNDDVccAVCC
DV33
VD106 RL254
C116224
DVCC
VD107 RL254
VD1001N5404
VD103
1N5404
C100
4700U/25V
FL100
T1AL 250V C102473
PVCC+VD102
1N5404
VD101
1N5404
FL101
T1AL 250V
C101
4700U/25VC111CAP
C113330U/25V
C112330U/25V
Vin1
GN
D2
Vout 3N100 7812
Vin2 GN
D1
Vout 3
N1027912
C114
100U/16V
C115100U/16V
C105
473
C106
473
C103473
C104473
+12V
-12VPVCC-
R100
0
R101
68/1W
F1F2
~VSR103
1/0.25W
VD111
1N4004C120100U/35V
R104
150/0.5W
C12147U/35V
VD11224V/1WC110
473
R1024.7K/0.25W
VD1105.1V
-27V
-27VDGND
R110100/0.5W
R112
820
R113
820
R108
20K
PVCC+
PVCC-
C133103
R109 20K
C132
100U/25V
C134103
C131
100U/25V
IN+(1)11
IN-(1)10
GND9
IN-(2)8
IN+(2)7
-Vs 1
OUT(1) 2
+Vs 3
OUT(2) 4
MUTE 5
-Vs 6N103
TDA7265
R106
1K
R1071K
C127
10U/16V
C126 10U/16VR
L
C129
16V/4.7u
C130
16V/4.7u
V100
9014
R11520K
R11627K
R11147K
R114200K
C128
1U/50V
PVCC+
R-OUT
L-OUT
VD113
3.3V C13510U/16V
1234
XS103
CON4
AVCC
1234
XS104
CON3
R
LGND
1
2
XL100A
WP4
3
4
XL100B
WP4
R1174.7/05W
R1184.7/05W
C124104
C125
104
R-OUT
L-OUTMUTE
~8.4V/2A
~14V/2A
~14V/2A
R105560K
~0
VD117 RL254
VD115 RL254
VD116 RL254
VD114 RL254
L100
L
L101
L
R119
68K
R12068K
C136 47p
C137 47p
C138
221
C139
221
Vin1
GN
D2
Vout 3N104
BA033
L103 100u
L102 100u
BT1BATTERY
VD118
IN6263
GN
D1
OUT 2IN3
N101 1085
3)FRONT PANEL BOARD
ABCDEF
ABCDEF
12
34
56
12
34
56
C3104
C6open
C5 open
K4
K3
K1
K2
D21N4148
D31N4148
KEY1KEY2KEY3KEY4
KEY4
KEY3
KEY2
KEY1
SE
G1
SE
G2
C11104
R1151K
R1 33KR2 33KR3 33KR4 33K
R13 10K
R533K
R633K
R733K
R833K
K5
K6
R14 10KC7
openR15 10K
C4100uF/16V
12
LED1LED
FIL+
SEG16SEG15SEG14SEG13SEG12SEG11SEG10SEG9SEG8SEG7SEG6SEG5SEG4SEG3SEG2SEG1
FIL-
GRID9GRID8GRID7GRID6GRID5GRID4GRID3GRID2GRID1
SW1 1SW2
2SW33
SW4 4DO
5DI6
IC7CLK8
STB 9KEY1
10KEY211
KEY3 12KEY4
13VD
D14
SE
G1
15S
EG
216
SE
G3
17S
EG
418
SE
G5
19S
EG
620
SE
G7
21S
EG
822
SE
G9
23SE
G10
24SE
G11
25SE
G12
26
G639G7
38 G837
SEG2036SEG19
35 VEE34
VDD33 SEG1832
SEG1731SEG16
30 SEG1529
SEG1428SEG13
27
OS
V52
VS
S51
LE
D1
50L
ED
249
LE
D3
48L
ED
447
LE
D5
46V
DD
45G
144
G2
43G
342
G4
41G
540
U116311
SE
G1
SE
G2
SE
G3
SE
G4
SE
G5
SE
G6
SE
G7
SE
G8
SE
G9
SEG
10SE
G11
SEG
12
SEG13SEG14SEG15SEG16
GRID9GRID8GRID7GRID6
GR
ID5
GR
ID4
GR
ID3
GR
ID2
GR
ID1
LE
D1
LE
D2
LE
D3
LE
D4
-27V
FIL-
FIL+-27V
V18550
IR
12
LED2LED
12
LED3LED
12
LED4LED
CPU+5V
A1
B2
C3
VR2
RVP
C10104
R2010K
R2110K
F-1
P15P26
P3 7P4
8P5 9P6
10P711
P8 12P9
13P1014
P1115P1216
P13 17P14
18P1519
P16 20NC
21NC22
NC23NC24
NC 2510G
269G27
8G 287G
296G 305G
314G32
3G 332G
341G35
F+ 38F+
39
F-2
VFD1HNVC10SM25
GRID10
GRID10
C1104
C2104
CPU+5V
CPU+5V
CPU+5V
12345
XS25P2.0CPU+5V
12345678910
XS110P2.0
VSTBVSCKVSDA
J11J12J21J22
1234
XS3
4P2.0
PHONE_L
PHONE_R
AGND
1
2
3
4
5
JK1
PHONE
AGND
PHONE_SW
CPU+5V
K7
K8
K9
K10
K11
K12
K13
D41N4148
D51N4148
SE
G3
SE
G4
CPU+5V
C8104
A1
B 2
C3
VR1RVP
C9104
R1810K
R1710K
CPU+5V
R10
330R
R9330R
IR3
VDD2
GND1
U2IR
C13104
+
C1247u
IR
R22
10R
CPU+5V
R26 100
VOL1-
VOL1+
VOL2-
VOL2+
CPU+5V
R16330 7.5MM
R19330 7.5MM
R25330 7.5MM
R27330 7.5MM
R24
3.3KLED3
12
LED5LED
V28550
12
LED6LED
12
LED7LED
12
LED8LED
CPU+5V
R29330 7.5MM
R30330 7.5MM
R31330 7.5MM
R28330 7.5MM
R23
3.3KLED4
C14104
C15104
FB1 FB
FB2 FB
C1647uF/50V
12
LED11LED
12
LED12LED
12
LED10LED
12
LED9LED
red red blue blue
R32 220R33 220
R34 220
R3510K
C17104
AGND
R36330
R37330
DVCC
II PART DATASHEET 1) POWER AMPLIFIER IC TDA7265
2) DIGITAL VOLUME CONTROL
3) HEADPHONE DRIVER
4)DAC –CS4340
5)RDS DECODER –SAA6588
6) VFD DRIVER