Panasonic Dmr-ex83 Ex773 Service manual

ORDER No. DSD1002005CE Panasonic Corporation 2010. Unauthorized copying and distribution is a violationof law.

DVD RecorderModel No. DMR-EX83EG

DMR-EX83EBDMR-EX83ECDMR-EX83EPDMR-EX773EBDMR-EX773EC DMR-EX773EP

Vol. 1Colours(S).......................Silver Type (Only EX83EG)(K).......................Black Type

TABLE OF CONTENTSPAGE PAGE

1 Safety Precautions -----------------------------------------------31.1. General guidelines-----------------------------------------3

2 Warning --------------------------------------------------------------42.1. Prevention of Electrostatic Discharge (ESD)

to Electrostatic Sensitive (ES) Devices---------------42.2. Precaution of Laser Diode -------------------------------52.3. Service caution based on legal restrictions----------6

3 Service Navigation------------------------------------------------73.1. Service Information ----------------------------------------73.2. Caution for DivX (except DMR-EX773EB)-----------73.3. Micro Fuse conducting check ---------------------------83.4. Operation check when a USB device is

connected ----------------------------------------------------94 Specifications ---------------------------------------------------- 105 Location of Controls and Components------------------ 136 Operating Instructions ---------------------------------------- 15

6.1. Taking out the Disc from DVD-Drive Unit whenthe Disc cannot be ejected by OPEN/CLOSEbutton-------------------------------------------------------- 15

7 Service Mode ----------------------------------------------------- 177.1. Self-Diagnosis and Special Mode Setting---------- 17

8 Service Fixture & Tools --------------------------------------- 339 Disassembly and Assembly Instructions --------------- 34

9.1. Disassembly Flow Chart-------------------------------- 349.2. P.C.B. Positions------------------------------------------- 359.3. Top Case --------------------------------------------------- 369.4. Front Panel ------------------------------------------------ 369.5. Front (L) P.C.B., Front (R) P.C.B. -------------------- 379.6. HDD --------------------------------------------------------- 379.7. Rear Panel, Fan Motor --------------------------------- 389.8. RAM/Digital P.C.B. Module ---------------------------- 389.9. Power P.C.B. ---------------------------------------------- 40

9.10. Main P.C.B. ------------------------------------------------ 4010 Measurements and Adjustments -------------------------- 41

10.1. Service Positions----------------------------------------- 4110.2. Caution for Replacing Parts --------------------------- 45

10.3. Standard Inspection Specifications afterMaking Repairs------------------------------------------- 472

1 Safety Precautions1.1. General guidelines

1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated ordamaged by the short circuit.

2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properlyinstalled.

3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1.1.1. Leakage current cold check1. Unplug the AC cord and connect a jumper between the

two prongs on the plug.2. Measure the resistance value, with an ohmmeter,

between the jumpered AC plug and each exposed metal-lic cabinet part on the equipment such as screwheads,connectors, control shafts, etc. When the exposed metal-lic part has a return path to the chassis, the readingshould be between 1M and 5.2M.When the exposed metal does not have a return path to the chassis, the reading must be .

1.1.2. Leakage current hot check (See Figure 1.)

1. Plug the AC cord directly into the AC outlet. Do not usean isolation transformer for this check.

2. Connect a 1.5k, 10 watts resistor, in parallel with a0.15F capacitors, between each exposed metallic parton the set and a good earth ground such as a water pipe,as shown in Figure 1.

3. Use an AC voltmeter, with 1000 ohms/volt or more sensi-tivity, to measure the potential across the resistor.

4. Check each exposed metallic part, and measure the volt-age at each point.

5. Reverse the AC plug in the AC outlet and repeat each ofthe above measurements.

6. The potential at any point should not exceed 0.75 voltsRMS. A leakage current tester (Simpson Model 229 orequivalent) may be used to make the hot checks, leakagecurrent must not exceed 1/2 milliampere. In case a mea-surement is outside of the limits specified, there is a pos-sibility of a shock hazard, and the equipment should berepaired and rechecked before it is returned to the cus-tomer.

Figure 13

2 Warning2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive

(ES) DevicesSome semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-trostatic Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistor-sand semi-conductor "chip" components. The following techniques should be used to help reduce the incidence of component damagecaused by electrostatic discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on yourbody by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi-num foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can

generate electrical charge sufficient to damage ES devices.5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most

replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara-ble conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective materialto the chassis or circuit assembly into which the device will be installed.Caution

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the

brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficientto damage an ES device).4

2.2. Precaution of Laser Diode5

2.3. Service caution based on legal restrictions2.3.1. General description about Lead Free Solder (PbF)The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for thisequipment in considering the globally environmental conservation.

The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86F) more than thatof the normal solder.

Definition of PCB Lead Free Solder being used

Service caution for repair work using Lead Free Solder (PbF) The lead free solder has to be used when repairing the equipment for which the lead free solder is used.

(Definition: The letter of PbF is printed on the PCB using the lead free solder.) To put lead free solder, it should be well molten and mixed with the original lead free solder. Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC. Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the

lead free solder. Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 35030 degrees

C (66286F).Recommended Lead Free Solder (Service Parts Route.)

The following 3 types of lead free solder are available through the service parts route.RFKZ03D01KS-----------(0.3mm 100g Reel)RFKZ06D01KS-----------(0.6mm 100g Reel)RFKZ10D01KS-----------(1.0mm 100g Reel)

Note:

* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%

The letter of PbF is printed either foil side or components side on the PCB using the lead free solder.(See right figure)6

3 Service Navigation3.1. Service Information

3.2. Caution for DivX (except DMR-EX773EB)7

3.3. Micro Fuse conducting checkThis unit uses the Micro Fuse.Check the Micro Fuse conducting using the Tester at the check points below.8

3.4. Operation check when a USB device is connectedYou can check the operation status (normal or abnormal) of the USB connection part of this unit easily as shown below.

Connect each device to the USB terminal on the front panel and check the operation status on the TV monitor.

Normal operation:

Automatically displayed when the USB connection is made to a digital camera, etc. (Example below: When JPEG materials have been recorded)(*Displayed items differ depending on the recorded contents.)

Abnormal operation (Example 1):

Warning is displayed automatically if overcurrent is detected when a USB device is connected.(*When a USB device or this units USB terminal shorts out or the power supply type of USB device is connected)

Abnormal operation (Example 2):

When the terminal of USB device is damaged or open, there is no display on the TV monitor.9

4 Specifications10

5 Location of Controls and ComponentsFollowings are the Location of Controls and Components for DMR-EX773EB as a sample.For other models, refer to each Operating Instructions.13

6 Operating Instructions6.1. Taking out the Disc from DVD-Drive Unit when the Disc cannot be

ejected by OPEN/CLOSE button6.1.1. Forcible Disc Eject6.1.1.1. When the power can be turned off.

1. Turn off the power and press [STOP] [CH UP] keys on the front panel simultaneously for 15 seconds.

6.1.1.2. When the power can not be turned off.1. Press [POWER] key on the front panel for over 4 seconds to turn off the power forcibly, and press [STOP] [CH UP] keys on

the front panel simultaneously for 15 seconds.

6.1.2. When the Forcible Disc Eject can not be done.15

1. Turn off the power and pull out AC cord.2. Remove the Top Case.3. Put deck so that bottom can be seen.4. Slide SLIDE CAM by Paper Clip or minus screw driver (small) in the direction of arrow to eject tray slightly.

5. Put deck upward, and push out Tray by Paper Clip or minus screw driver (small).16

7 Service Mode7.1. Self-Diagnosis and Special Mode Setting7.1.1. Self-Diagnosis FunctionsSelf-Diagnosis Function provides information for errors to service personnel by Self-Diagnosis Display when any error hasoccurred.U**, H** and F** are stored in memory and held.You can check latest error code by transmitting [0] [1] of Remote Controller in Service Mode.Automatic Display on FL will be cancelled when the power is turned off or AC input is turned off during self-diagnosis display is ON.

Error Code Diagnosis contents Description Monitor Display Automatic FL displayU30 Remote control code error Display appears when main unit and remote

controller codes are not matched.No display

* is remote controller code of themain unit.Display for 5 seconds.

U50(For EGonly)

Antenna Short U50 is displayed when a short circuit wasdetected at Antenna Input while "ActiveAntenna" of "Connection" of "FUNCTIONMENU" is ON, And then "Active Antenna" iscompulsorily switched to "Off".

"A short circuit wasdetected at theantenna input.Please check yourantenna."

U59 Abnormal inner temperaturedetected

Display appears when internal temperature ofdeck reaches limit temperature.The power is turned off forcibly.For 30 minutes after this, all key entries aredisabled. (Fan motor operates at the highestspeed for the first 5 minutes. For the remain-ing 25 minutes, fan motor is also stopped.)The event is saved in memory as well.

No display

U59 is displayed for 30 minutes.

U61 The unit is carrying out itsrecovery process.

No display

U71 HDMI incompatible error (HDCP incompatible)

Display this error when the equipment (com-patible with DVI such as TV, amplifier etc.)connected to the unit by HDMI is incompatiblewith HDCP. *HDCP=High-bandwidth Digital Content Pro-tection

No display

U72 HDMI connection error (communication error)

This error is displayed when there are anycommunication problems with the unit and theequipments (TV, amplifier etc.) connected tothe unit by HDMI. (or when there is a problemwith the HDMI cable) U72 display disappears when error

has been solved by Power OFF/ONof connecting equipment or byinserting/removing of HDMI cable.

U73 HDMI connection error (authentication error)

When authentication error occurs while theequipments (TV, amplifier etc.) are connectedby HDMI. (or when there is a problem with theHDMI cable)

No display

U73 display disappears when errorhas been solved by Power OFF/ONof connecting equipment or byinserting/removing of HDMI cable.

U76 HDMI connection error HDMI cannot be output because you are con-nected to a model that does not support copy-right protection.

No display17

U80 ST MicroprocessorCommunication Error onTimerBus

Display appears when ST MicroprocessorCommunication Error on Timer Bus occurs.

No display

U80 is displayed till the [POWER]key is pressed.

U81 ST MicroprocessorCommunication Error onUART

Display appears when ST MicroprocessorCommunication Error on DART occurs.

No display

U81 is displayed till the [POWER]key is pressed.

U88 The unit is carrying out itsrecovery process.

No display

U99 Hang-up Displayed when communication error hasoccurred between Main microprocessor andTimer microprocessor.

No display

Displayed is left until the [POWER]key is pressed.

H19 02 Inoperative fan motor When inoperative fan motor is detected afterpowered on, the power is turned off automati-cally.The event is saved in memory.

No display No display

F00 No error information Initial setting for error code in memory(Error code Initialization is possible with errorcode initialization and main unit initialization.)


F58 Drive hardware error When drive unit error is detected, the event issaved in memory.


F34 Initialization error when mainmicroprocessor is started upfor program recording

When initialization error is detected after start-ing up main microprocessor for programrecording, the power is turned off automati-cally. The event is saved in memory.


F74 HDMI Device Key Communi-cation error.

HDMI connection could not be authenticateddue to a transfer malfunction.Factor of HDMI Device key-road failure

When HDMI LSI is damaged. When the bus line of I2C doesn't operate

normally. When device key information recorded is

damaged.

No display

F75 HDMI Device Key Informationerror

HDMI connection could not be authenticateddue to an internal data malfunction.Factor of HDMI Device key-road failure

When HDMI LSI is damaged. When the bus line of I2C doesn't operate

normally. When device key information recorded is

damaged.

No display

UNSUP-PORT

Unsupported disc error *An unsupported format disc was played,although the drive starts normally.*The data format is not supported, althoughthe media type is supported.*Exceptionally in case of the disc is dirty.

This disc isincompatible.

Display for 5 seconds.

The character indication flows side-ways.

NO READ Disc read error *A disc is flawed or dirty.*A poor quality failed to start.*The track information could not be read.

Cannot read.Please check thedisc.

Error Code Diagnosis contents Description Monitor Display Automatic FL display18

HARDERR

Drive error The drive detected a hard error. DVD drive error. Display for 5 seconds.


SELFCHECK

Restoration operation Since the power cord fell out during a powerfailure or operation, it is under restorationoperation.*It will OK, if a display disappears automati-cally. If a display does not disappear, there isthe possibility that defective Digital P.C.B. /DVD drive.

No display


PLEASEWAIT

Unit is in termination process Unit is in termination process now.BYE is displayed and power will be turnedoff.In case Quick Start of setup menu is ON, itis displayed in restoration operation for ACoff.

No display


UNFOR-MAT

Unformatted disc error You have inserted an unformatted DVD-RAMor DVD-RW that is unformatted or recordedon other equipment.


IR ERR IR communication error [IR ERR] is displayed when communicationbetween Timer microprocessor and IR micro-processor fails.

No display

No REC Recording is impossible [No REC] is displayed when recording isimpossible due to the defect, dirt or wound ofmedia.

No display

HDDERROR

[HDD ERR] is displayedwhen start up of HDD wasfailed.(Except error of setting ofPower on Stand-by)

a) When normal start up was failed.b) When start up at HDD boot was failed.c) When start up from state of P-OFF was failed.d) When start up from state of HDD SLEEP was failed.[HDD ERR] is displayed when above eachstart up of HDD was failed.*In case b), tray opens automatically and[HDDERR] is displayed until version up disc isinserted.

No display

HDD NG Power on Stand-by settingerror

[HDD NG] is displayed when power on Stand-by setting of HDD is NG or when HDD whichpower on Stand-by is not set to is used.Please try to replace HDD with genuine HDDas service parts.

No display

Error Code Diagnosis contents Description Monitor Display Automatic FL display19

7.1.2. Special Modes Setting

Item FL display Key operationMode name Description Front Key

TEST Mode *All the main unit's parameters (include tuner)are initialized.

Press [STOP], [CH UP] and [OPEN/CLOSE] keys simultaneously forfive seconds when power is off.

Rating password The audiovisual level setting password is ini-tialized to Level 8.

Open the tray, set DRIVE SELECTto DVD, and press [REC] and[PLAY] simultaneously for 5 sec-onds.

Service Mode Setting every kind of modes for servicing.*Details are described in 7.1.3. ServiceModes at a glance.

When the power is off, press [CHUP], [OPEN/CLOSE] and [REC]keys simultaneously for 5 seconds.

Forced disc eject Removing a disc that cannot be ejected.The tray will open and unit will shift to P-offmode.*When Timer REC is ON or EXT-LINK is ON,execute " Forced disc eject " after releasingTimer REC or EXT-LINK.*This command is not effective during "Childlock" is ON.While Demonstration Lock is being set, thisForced disc eject function is not accepted.

The display before executionleaves.

When the power is off, press[STOP] and [CH UP] keys simulta-neously for 15 seconds.

Child lock/unlock Set or release Child Lock. Press [OK] and [RETURN] byremote controller simultaneouslyuntil [X-HOLD] is displayed.

NTSC/PAL system select To switch PAL/NTSC alternately. The display before executionleaves.

While the power is on (E-E mode),press [STOP] and [OPEN/CLOSE]simultaneously for 5 seconds.

Forced power-off When the power button is not effective whilepower is ON, turn off the power forcibly.*When Timer REC is ON or EXT-LINK is ON,execute Forced Power-off after releasingTimer REC or EXT-LINK.

Display in P-off mode. Press [Power] key over than 4 sec-onds.

Aging Perform sequence of modes as * AgingDescription shown below continually.

Display following the then mode. When the power is ON, press[STOP], [POWER] and [OPEN/CLOSE] simultaneously for over 5seconds and less than 10 seconds.Note:If the unit has hung-up because ofpressing keys for over 10 seconds,once turn off the power, and re-exe-cute this command.*When releasing Aging mode, press[POWER] key.20

Aging Contents (Example):

Demonstration lock/unlock

Ejection of the disc is prohibited.The lock setting is effective until unlocking thetray and not released by Main unit initializa-tion of service mode.

*When lock the tray.

LOCK is displayed for 3 seconds.

When the power is on, press[STOP] and [POWER] keys simulta-neously for 5 seconds in the condi-tion that a disc in the tray.Note:Time difference between pressing[STOP] and [POWER] should bewithin 0.5 sec.

*When unlock the tray.

UNLOCK is displayed for 3 sec-onds.

When the power is on, press[STOP] and [POWER] keys simulta-neously for 5 seconds while the traybeing locked.Note:Time difference between pressing[STOP] and [POWER] should bewithin 0.5 sec.

*When press OPEN/CLOSE keywhile the tray being locked.

Display LOCK for 3 seconds.

Press [OPEN/CLOSE] key while thetray being locked.

ATP re-execution Re-execute ATP. Display at ATP executing. When the power is on (E-E mode),press [CH UP] and [CH DOWN]simultaneously for 5 seconds.

Progressive initialization The progressive setting is initialized to Inter-lace.

The display before executionleaves.

When the power is on (E-E mode),press [STOP] and [PLAY] simulta-neously for 5 seconds.

Item FL display Key operationMode name Description Front Key21

7.1.3. Service Modes at a glanceService mode setting: While the power is off, press REC, CH UP and OPEN / CLOSE simultaneously for five seconds.

Item FL display Key operationMode name Description (Remote controller key)

Release Items Item of Service Mode executing is cancelled. Press [0] [0] in service mode.

Error Code Display Last Error Code of U/H/F held by Timer is dis-played on FL.*Details are described in 7.1.1. Self-Diagno-sis Functions.

If any error history does not exist,[F00] is displayed.

Press [0] [1] in service mode

ROM Version Display 1. Region code (displayed for 5 sec.)2. Main firm version (displayed for 5 sec.)3. Timer firm version (displayed for 5 sec.)4. Drive firm version (displayed for 5 sec.)5. ROM correction version (displayed for 5 sec.)6. Loader version (display for 5 sec.)7. Deviceinfo version (display for 5 sec.)8. ST Microprocessor version (left displayed)

1.

*: Region of DVD (Example: 1,2.....)2.

3.

4.

5.

6.

7.

8.

* are version displays.

Press [0] [2] in service mode

White Picture Output White picture is output as component Outputfrom AV Decoder.*White picture(Saturation rate : 100%)*It is enable to switch Interlace/Progressiveby I/P switch: [1] [4]

*Initial mode is Interlace. Press [1] [1] in service mode.

Switch Interlace/Progressive Press [1] [4] in White Picture Outputmode.*I/P are switched alternately.22

Magenta Picture Out-put

Magenta picture is output with ComponentOutput from AV Decoder.*Magenta picture(Saturation rate: 100%)*It is enable to switch Interlace/Progressiveby I/P switch: [1] [4]

*Initial mode is Interlace. Press [1] [2] in service mode.

Switch Interlace/Progressive Press [1] [4] in Magenta PictureOutput mode.*I/P are switched alternately.

RTSC Return in XP(A & V)

AV1 input signal is encoded (XP), decoded(XP) and output decoded signal to externalwithout DISC recording and DISC playback.

Initial mode: EE2/ Interlace/ XP/ Audio48kHz

Press [1] [3] in service mode.

Switch Interlace/Progressive Press [1] [4] in RTSC Return XPmode.*I/P are switched alternately.

Audio 44.1 kHz/ 48 kHz Switch Press [2] [4] in RTSC Return XPmode.*48 kHz / 44.1 kHz are switchedalternately.

I/P Switch Switch Interlace and Progressive in EE mode.*Initial setting is Interlace.*This command is effective during executingWhite Picture Output, Magenta Picture Out-put and RTSC Return in XP (A & V) modes.

Initial mode is Interlace

Switch Interlace/Progressive

Press [1] [4] in I/P Switch mode.*I/P are switched alternately.

Audio Mute (XTMUTE) Check whether mute is applied normally bythe timer microprocessor.


Audio Mute (XDMUTE) Check whether mute is applied normally bythe Digital P.C.B.


Audio Pattern Output The audio pattern stored in the internal mem-ory is output(Lch: 1kHz/-18dB)(Rch: 400Hz/-18dB)*Audio sound clock switching operation ofDAC can be confirmed by sub command [2][4].

Initial mode (Audio 48kHz) Press [2] [3] in service mode.

Audio 44.1kHz/48kHz switching Press [2] [4] in Audio Pattern Outputmode.*48 kHz / 44.1 kHz are switchedalternately.

Item FL display Key operationMode name Description (Remote controller key)23

HDD READ SEEKInspection

Inspecting seek time of HDD to inspect per-formance.

At start

The [*] sign is added every 20 sec-onds while inspecting.Two digits on the right side are theprogress level of the inspection (Theunit is %).Example on the way of inspection:

When HDD is OK after inspection:

(NG is displayed when error is exclud-ing o)(Transfer rate is calculated from theAV scanning result, and when it is lessthan 35Mbps, NG is displayed.)

$: [X] is displayed when seek time isover 270msec., there is error or trans-fer rate is NG. Position at $ is space when excludingthose.##: Number of data of over 100msec.and less than 270msec.When it is over 100, [99] is displayed.When the number is less than 5, wejudge it normal.

Press [3] [1] in service mode.* When canceling the inspectionmode while executing, do forcedpower-off.Method:Press [POWER] key more than 4seconds.


HDD READ VERIFYInspection

Measure of access time in READ VERIFYMODE of HDD.

At start



(NG is displayed when error is exclud-ing o)(Transfer rate is calculated from theAV scanning result, and when it is lessthan 35Mbps, NG is displayed.)

$: [X] is displayed when seek time isover 270msec., there is error or trans-fer rate is NG. Position at $ is space when excludingthose.##: Number of data of over 100msec.and less than 270msec.When it is over 100, [99] is displayed.When the number is less than 5, wejudge it normal.

Press [3] [2] in service mode.* When canceling the inspectionmode while executing, do forcedpower-off.Method:Press [POWER] key more than 4seconds.

HDD Spin-up time The accumulation value of the Spin-up time ofHDD is displayed.

Spin-up time of HDD is displayed. (The unit of display is second.)



HDD Simple AV Scan Simple AV scan check of HDD



When HDD is NG after inspection:

[*] is the number of data of NG.


HDD Check Simple quality judgement of HDD

When HDD is OK:

When HDD is NG:



HDD/ DVD Drive Sim-ple Check

Check if HDD Self-Diagnosis test was per-formed or Drive last error occurred within 4weeks.* If the current date or the date when the erroroccurred is wrong, correct judgement may notbe made.

HDD Self-Diagnosis test start.

When HDD Self-Diagnosis test resultis OK.

When HDD Self-Diagnosis test resultis NG.

When the drive malfunction wasdetected within 4 weeks ago.

When the drive malfunction wasdetected more than 4 weeks ago orDrive last error data does not exist.

[HDD OK] from [DRV OK] are repeat-edly displayed in turn.


Laser Used Time Indi-cation

Check laser used time (hours) of drive.

(*****) is the used time display inhour.

Laser used time of DVD/ CD inPlayback/Recording mode iscounted.


Delete the Laser UsedTime

Laser used time stored in the memory of theunit is deleted.



DVD Drive Last Error DVD Drive error code display.*For details about the drive error code, referto the Service Manual for the specific DVDDrive.

1. Error Number is displayed for 5 sec-onds.

2.The date when the error hasoccurred is displayed for 5 seconds.

YY: YearMM: MonthDD: Day3. Last Drive Error (1/2) is displayedfor 5 seconds.

4. Last Drive Error (2/2) is displayedfor 5 seconds.

5. Error occurring Disc type is dis-played for 5 seconds.

6. Disc Maker ID is displayed for 5seconds.

7. Factor of Drive Error occurring is leftdisplayed

Press [4] [2] in service mode.When INFO****** is being dis-played, past 19 error histories canbe displayed by pressing [0] [1] - [1][9]

In case that the maker cannot beidentified, display is black out.

Delete the Last DriveError

Delete the Last Drive Error information storedon the DVD Drive.


Laser power confirma-tion

Drive state is judged based on differencebetween laser power value at shipping andpresent laser power value.

* is judgement result

If DVD-RAM disc in not inserted, [NODISC] is displayed.If power value study was filed,[ERROR] is displayed.

1. into DVD Drive in service mode. (Other media are assumed to be non-correspondence.)

2. Press [4] [4].


Turn on all FL/LEDs All segments of FL and all LEDs are turnedon.

All segments are turned on. Press [5] [1] in service mode.

PB HIGH Signal Out-put

8 pin of AV 1 Jack (PB HIGH terminal) is High(approx. 11V DC).


PB MIDDLE SignalOutput

8 pin of AV 1 Jack (PB HIGH terminal) is Mid-dle (approx. 5.5V DC)


Front connectioninspection

Press all front keys and check the connectionbetween Main P.C.B. and Front key Switches.

(1) Each time a key is pressed, seg-ment turned on increases one by one.(2) Total number of keys that havebeen pressed.


CEC (H) output Check of the CEC terminal high output ofHDMI.

When the check is OK.

When the check is NG.


CEC (L) output Check of the CEC terminal low output ofHDMI.




Production Date Dis-play

Display the date when the unit was produced.

YY: YearMM: MonthDD: Day


Display the accumu-lated working time

Display the accumulated unit's working time.

(Indicating unit: Second)



Display the Error His-tory

Display the Error History stored on the unit. Display reason of error for 5 seconds.

01:Defect of Digital P.C.B.(AV DEC / MAIN CPU)02:Defect of DVD Drive.03:Defect of Disc.04:Defect of Digital P.C.B. or Communi-cation Error.05:Defect of Digital P.C.B.(AV DEC / MAIN CPU)06:Defect of HDD.

Display the time when the error hasoccurred for 5 seconds.

DD: Dayhh: Hourmm: MinuteAccumulated working time till occur-ring of the error is left displayed.

(Indicating unit: Second)

Press [6] [5] in service mode.Then press [0] [1] ~ [9] [9], the past99 error histories are displayed.

Delete the Error His-tory

Delete Error History information stored on theunit.


SD card WRITE check(For EX83)

Delete Error History information stored on theunit.

When the WRITE check is OK.

When the WRITE check is NG.

*Note:The image stored in the SD card willbe erased.

Insert a SD card to SD card slot,and press [7] [4] in service mode.*Insert SD card while the power isoff.*Check for [CARD SD] display onthe FL display and go on the proce-dure.


USB check Display the volume label of the USB memory. When USB memory is not connected.

When USB check is OK.

[*] is volume label.Example of volume label is [PANASONIC] :

When USB check is NG.


* Insert USB memory.

AV4(V)/AV1(RGB) I/OSetting

Set input to AV4 (V) and set output to AV1(RGB) for I/O checking


AV2(Y/C)/AV1(V) I/OSetting

Set input to AV2 (Y/C) and set output to AV1(V) for I/O checking


AV2(V)/AV1(Y/C) I/OSetting

Set input to AV2 (V) and set output to AV1 (Y/C) for I/O checking


AV2(RGB)/AV1(V) I/OSetting

Set input to AV2 (RGB) and set output to AV1(V) for I/O checking


P50(H) Output Timer Microprocessor IC7501-76 output Highsignal for AV1-pin 10 passing through inverter(approx. 0V DC at AV1-pin 10).




P50(L) Output Timer Microprocessor IC7501-76 output Lowsignal for AV1-pin 10 passing through inverter(approx. 4.4V DC at AV1-pin 10).




Tray OPEN/CLOSETest

The tray is opened and closed repeatedly.

* is number of open/close cycletimes.

Press [9] [1] in service mode*When releasing this mode, pressthe [POWER] button of RemoteController more than 4 seconds.


Error code initialization Initialization of the last error code held bytimer (Write in F00)


Initialize Service Last Drive Error, Error history and ErrorCodes stored on the unit are initialized to fac-tory setting.


Finishing service mode Release Service Mode. Display in STOP (E-E) mode. Press power button on the frontpanel or Remote controller in ser-vice mode.


8 Service Fixture & Tools

Part Number Description CompatibilityRFKZ0260 Extension Cable (Main P.C.B. - Digital P.C.B./ 88 Pin) Same as EH49 SeriesRFKZ0323 Extension Cable (Main P.C.B. - Power P.C.B./ 9 Pin) Same as EH49 SeriesRFKZ0455 Extension Cable (HDD - Digital P.C.B./ 7 Pin) Same as EX795 SeriesRFKZ0169 Extension Cable (Main P.C.B. - HDD / 4 Pin) Same as EH49 SeriesRFKZ0367 Extension Cable (Main P.C.B. - Front (R) P.C.B. / 6 Pin) Same as EH49 SeriesRFKZ03D01KS Lead Free Solder (0.3mm/100g Reel) Same as EH49 SeriesRFKZ06D01KS Lead Free Solder (0.6mm/100g Reel) Same as EH49 SeriesRFKZ10D01KS Lead Free Solder (1.0mm/100g Reel) Same as EH49 SeriesRFKZ0316 Solder Remover (Lead free low temperature Solder/50g) Same as EH49 SeriesRFKZ0328 Flux Same as EH49 Series33

9 Disassembly and Assembly InstructionsNote:

In this document, explanations basically use illustrations of DMR-EX83. For DMR-EX773, shape of some parts may be different.

9.1. Disassembly Flow ChartThe following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the ser-vicing. To assemble the unit, reverse the steps shown in the chart below.34

9.2. P.C.B. Positions35

9.3. Top Case1. Remove 2 screws (A) and 3 screws (B).2. Slide Top Case rearward and open the both ends at rear

side of the Top Case a little and lift the Top Case in thedirection of the arrows.

9.4. Front Panel1. Remove the Front SW Cable.2. Unlock 6 tabs in (A) - (F) turn.

Pull with the Front Panel in the direction of your side.

9.4.1. How to assemble Tray door1. Attach the Tray door spring to Tray door.

2. Attach Tray door in order from to .

Insert the shaft in the hole.

Insert the shaft in the hole.

3. Confirm the Tray door spring is attached as following.36

9.5. Front (L) P.C.B., Front (R)P.C.B.

1. Remove 2 Screws (A) to remove the Front (L) P.C.B. andFront (R) P.C.B.

9.6. HDD

1. Remove 4 Screws (A), SATA Power Cable and SATA Sig-nal Cable to remove HDD.

2. Put HDD with HDD bracket up and down inversely so asnot to give a shock to HDD.

3. Remove 4 Screws (B) to remove HDD from HDD bracket.37

9.7. Rear Panel, Fan Motor9.7.1. Only Fan Motor

1. Remove 2 Screws (A) and the Fan connector, remove theFan Motor with pushing 2 tabs in the direction of arrows.

9.7.2. Rear Panel with Fan Motor1. Remove 5 Screws (B) and 2 Screws (C).2. Disconnect the Fan connector and unlock 2 Tabs (A) to

remove Rear Panel.

9.8. RAM/Digital P.C.B. Module

1. Remove 3 Screws (A).38

2. Lift up Digital P.C.B. slightly so to disconnect the Connec-tor to remove Digital P.C.B. in the direction of the arrow.And remove 3 Screws (B) to remove DVD drive.

3. Put Digital P.C.B. on DVD drive and remove RAM/DigitalP.C.B. Module.

Note:RAM/Digital P.C.B. Module as service part has no Heattransfer sheet.Before returning to customer, Heat transfer sheet and Sheetcover should be installed on Digital P.C.B.39

9.9. Power P.C.B.1. Remove 2 Screws (A) and disconnect the Connector to

remove Power P.C.B.

9.10. Main P.C.B.

1. Remove 5 Screws (A) and disconnect the Connector.2. Remove Front angle and 2 Digital PCB bracket.3. Remove Main P.C.B.40

10 Measurements and Adjustments10.1. Service PositionsNote:

For description of the disassembling procedure, see the section 9.

10.1.1. Checking and Repairing of Power P.C.B.41

10.1.2. Checking and Repairing of RAM / Digital P.C.B. Module42

10.1.3. Checking and Repairing of Main P.C.B.43

10.1.4. Checking and Repairing of HDD44

10.2. Caution for Replacing Parts10.2.1. Items that should be done after replacing parts

*Note1: (except DMR-EX773EB) 45

*Note2: Please prepare latest firmware updating disc.* Main Firm is being recorded in HDD, but new HDD has no data.

Writing Procedure of Main Firm:

(1) Writing of Main Firm needs 3, 4 minutes. (2) Never cut the power of DVD Recorder until writing in Firmware ends. (3) Initial settings and contents of reservation will not change if writing is normally completed. 1. Prepare updating disc for firm ware.2. Replace HDD.3. Turn on power of DVD Recorder.4. After [PLEASE WAIT] is displayed on FL., [HDD ERR] is displayed on FL.5. Tray opens automatically.6. Insert updating disc for Firmware and press OPEN/CLOSE key. (If a wrong disc was inserted, [NG DISK] [NO FVU] is dis-

played on FL.)7. [LOAD] [LD FVU] [M_FIRM] are displayed on FL alternately.8. [MAIN] [UPD OK] blink alternately and Tray opens. Take out disc (Writing was finished).9. Press Power button to turn off power.

10. Press Power button to turn on power.11. [HELLO] [SELF CHECK] are displayed on FL.12. [UNFORMAT] is displayed on FL.13. After [UNFORMAT] was displayed, message to request FORMAT is displayed on TV screen.14. Select [Yes] and press [ENTER] key to format HDD.

(After FORMAT, program in HDD will be lost, but Main firm will not be lost.Write of the main farm" is completed above.

* Drive firm is not updated by above operation. If you wish update Drive firm, please prepare the disc for latest firmware update,and write it again. * If the version of the firm you have prepared was same as or later than that has already been written in deck, 'UNSUPPORT' isdisplayed on FL.* In a usual updating of firmware, writing is not performed when the timer reservation standby was not released.

10.2.2. Notice after replacing RAM/Digital P.C.B. ModuleFormatting the HDD is unnecessary after After replacing RAM/Digital P.C.B. Module, TM AV1 is displayed on FL, once power off, and start-up again.46

10.3. Standard Inspection Specifications after Making RepairsAfter making repairs, we recommend performing the following inspection, to check normal operation.

Use the following checklist to establish the judgement criteria for the picture and sound.

No. Procedure Item to Check

1 Turn on the power, and confirm items pointed out. Items pointed out should reappear.

2 Insert RAM disc. The Panasonic RAM disc should be recognized.

3 Enter the EE (TU IN / AV IN - AV OUT) mode. No abnormality should be seen in the picture, sound or operation.

4 Model with the HDD: Perform self-recording and playback for oneminute using the HDD.

No abnormality should be seen in the picture, sound or operation.

5 Perform copy a program to disc and playback for one minute usingthe RAM discs.

No abnormality should be seen in the picture, sound or operation.*Panasonic DVD-RAM discs should be used when copying andplayback.

6 If a problem is caused by a VCD, DVD-R, DVD-Video, Audio-CD,MP3 or WMA (EH63/635 only), playback the test disc.

No abnormality should be seen in the picture, sound or operation.

7 Models with USB Input Jack or DV Input Jack: In case of that thetrouble is caused by USB terminal and/or DV terminal.

Models with USB Input Jack or DV Input Jack;1) USB terminal: Check to be able to display and copy the picture.2) DV terminal: Check to be able to record from DVC.

8 After checking and making repairs, upgrade the firmware to the lat-est version.

Make sure that [UPD OK] appears in the FL displays.*[UNSUPPORT] display means the unit is already updated to new-est same version. Then version up is not necessary.

9 Transfer [9][9] in the service mode setting, and initialize the servicesettings (return various settings and error information to theirdefault values. The laser time is not included in this initialization).

Make sure that [CLR] appears in the FL display.After checking it, turn the power off.

Item Contents Check Item Contents Check

Picture

Block noise

Sound

Distorted soundCrosscut noise Noise (static, background noise, etc.)Dot noise The sound level is too low.Picture disruption The sound level is too high.Not bright enough The sound level changes.Too brightFlickering colorColor fading47

S-1

S1. About Indication of The Schematic Diagram ............................ S-1S1.1. Important Safety Notice......................................................... S-1

S2. Voltage and Waveform Chart ................................................... S-2S2.1. Main P.C.B. ........................................................................... S-2S2.2. Front_R P.C.B. ...................................................................... S-3S2.3. Power P.C.B. ......................................................................... S-4

S3. Block Diagram .......................................................................... S-5S3.1. Main P.C.B. Power Supply Block Diagram ............................ S-5S3.1.1. Main P.C.B. Power Supply Block Diagram (1) ................... S-5S3.1.2. Main P.C.B. Power Supply Block Diagram (2) ................... S-6S3.2. Main P.C.B. Analog Video Block Diagram ............................. S-7S3.3. Main P.C.B. Analog Audio Block Diagram ............................. S-8S3.4. Digital P.C.B. Analog Timer Block Diagram ........................... S-9S3.4.1. Digital P.C.B. Analog Timer Block Diagram (1) .................. S-9S3.4.2. Digital P.C.B. Analog Timer Block Diagram (2) ................ S-10

S4. Schematic Diagram ................................................................ S-11S4.1. Interconnection Diagram ..................................................... S-11S4.2. M_NET_FL (M) Schematic Diagram ................................... S-12

S4.3. AV_IO (AV) Schematic Diagram .......................................... S-16S4.4. Tuner (TU) Schematic Diagram .......................................... S-20S4.5. Front_L Schematic Diagram ............................................... S-24S4.6. Front_R Schematic Diagram ............................................... S-24S4.7. Power Schematic Diagram.................................................. S-26

S5. Print Circuit Board .................................................................. S-30S5.1. Main P.C.B. ......................................................................... S-30S5.2. Front_L P.C.B. ..................................................................... S-34S5.3. Front_R P.C.B. .................................................................... S-34S5.4. Power P.C.B. ....................................................................... S-36

S6. Abbreviation ........................................................................... S-41

S7. Replacement Parts List .......................................................... S-45

S8. Exploded View ....................................................................... S-52S8.1. Frame and Casing Section.................................................. S-52S8.2. Packing Parts and Accessories Section .............................. S-53

Table of contents

Service ManualDSD1002005CE

Diagrams and ReplacementParts List

Vol. 1

(S)...........Silver Type (only EX83EG)Colour

(K)...........Black Type

Model No.DMR-EX83EGDMR-EX83EBDMR-EX83ECDMR-EX83EPDMR-EX773EBDMR-EX773ECDMR-EX773EP

DVD Recorder

Name of Signal

OFTR FEP This signal is connectedto the FEP schematic diagram.

Circuit name being connected.

6.Use the parts number indicated on the Replacement Parts List .

7.Indication on Schematic diagrams:

5.The voltage being indicated here may be include observational-error (deviation) due tointernal-resistance and/or reactance of equipment. Therefore, handle the valueindicated on here as reference.

4.Although the voltage and waveform available on here is measured with standard frame,it may be differ from actual measurement due to modification of circuit and so on.

3.The voltage being indicated on the schematic diagram is measured in"Standard-Playback" mode when there is no specify mode is mentioned.

2.It is only the "Test Round" and no terminal (Pin) is available on the P.C.B.when the TP (Test Point) indicated as " " mark.

1.Although reference number of the parts is indicated on the P.C.B. drawing and/orschematic diagrams, it is NOT mounted on the P.C.B. when it is displayed with "$" mark.

FOR SAFETY. WHEN REPLACING ANY OF THESE COMPONENTS USE ONLY THE SAME TYPE.COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS

S1. About Indication of The Schematic DiagramS1.1. Important Safety Notice

S-2

S2. Voltage and Waveform Chart

S2.1. Main P.C.B.

Note) Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as standard. Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.

REF No. PIN No. REC PB EEIC1506 1 4.8 4.8 4.8IC1506 2 6.1 6.1 6.1IC1506 3 0 0 0IC1506 4 5 5 5IC1506 5 1.2 1.2 1.2IC1601 1 4.4 4.4 4.4IC1601 2 3.1 3.1 3.1IC1601 3 0 0 0IC1601 4 1.2 1.2 1.2IC1601 5 1.2 1.2 1.2IC1601 6 0.6 0.6 0.6IC1601 7 5.5 5.5 5.5IC1601 8 5.4 5.4 5.4IC1601 9 1.2 1.2 1.2IC1601 10 0 0 0IC1601 11 6 6 6IC1601 12 4.4 4.4 4.4IC1601 13 6.1 6.1 6.1IC1601 14 7.4 7.4 7.4IC1601 15 10.1 10.1 10.1IC1601 16 12.4 12.4 12.4IC3001 1 0 0 0IC3001 2 2.5 2.5 2.5IC3001 3 0 0 0IC3001 4 0 0 0IC3001 5 0 0 0IC3001 6 5 5 5IC3001 7 1.6 1.6 1.6IC3001 8 5 5 5IC3001 9 0.4 0.4 0.4IC3001 10 0.3 0.3 1.6IC3001 11 1.6 1.6 1.6IC3001 12 0.4 0.4 0.4IC3001 13 0 0 0IC3001 14 1.7 1.7 1.7IC3001 15 1.7 1.7 1.7IC3001 16 1.6 1.6 1.6IC3001 17 0.4 0.4 0.4IC3001 18 0 0 0IC3001 19 1.7 1.7 1.7IC3001 20 1.7 1.7 1.7IC3001 21 0 0 0IC3001 22 1.7 1.7 1.7IC3001 23 1.7 1.7 1.7IC3001 24 1.7 1.7 1.7IC3001 25 5 5 5IC3001 26 1.4 1.4 1.4IC3001 27 0.1 0.1 0.1IC3001 28 1.4 1.4 1.4IC3001 29 0 0 0IC3001 30 2.1 2.1 2.1IC3001 31 0 0 0IC3001 32 0 0 0IC3001 33 1.6 1.6 1.6IC3001 34 0 0 0IC3001 35 2.1 2.1 2.1IC3001 36 4.8 4.8 4.8IC3001 37 1.6 1.6 1.6IC3001 38 0 0 0IC3001 39 1.6 1.6 1.6IC3001 40 5 5 5IC3001 41 1.6 1.6 1.6IC3001 42 5.1 5.1 5.1IC3001 43 2 2 2IC3001 44 0 0 0IC3001 45 2 2 2

REF No. PIN No. REC PB EEIC3001 46 11.6 11.6 11.6IC3001 47 1.6 1.6 1.6IC3001 48 2 2 2IC3001 49 4.5 4.5 4.5IC3001 50 4.5 4.5 4.5IC3001 51 4.4 4.4 4IC3001 52 4 4 4.5IC3001 53 4.5 4.5 4.5IC3001 54 4.5 4.5 4.5IC3001 55 4.5 4.5 4.5IC3001 56 4.5 4.5 3.9IC3001 57 9.1 9.1 9.1IC3001 58 4.4 4.4 4IC3001 59 4.4 4.4 4.4IC3001 60 4.5 4.5 3.7IC3001 61 4.5 4.5 3.7IC3001 62 4.5 4.5 3.7IC3001 63 4.5 4.5 3.7IC3001 64 4.5 4.5 3.7IC3001 65 9 9 9IC3001 66 0 0 0IC3001 67 0 0 0IC3001 68 0 0 0IC3001 69 0 0 0IC3001 70 0 0 0IC3001 71 4.5 4.5 4.5IC3001 72 4.5 4.5 4.5IC3001 73 4.5 4.5 4.5IC3001 74 4.5 4.5 4.5IC3001 75 0 0 0IC3001 76 - - -IC3001 77 9.5 9.5 9.3IC3001 78 4.5 4.5 4.5IC3001 79 4.5 4.5 4.5IC3001 80 0 0 0IC3001 81 2.1 2.1 4.7IC3001 82 5 5 5IC3001 83 1.5 1.5 1.5IC3001 84 5.1 5.1 5.1IC3001 85 2.1 2.1 2.1IC3001 86 4.5 4.5 4.5IC3001 87 4.5 4.5 4.5IC3001 88 4.8 4.8 4.8IC3001 89 4.6 4.6 4.6IC3001 90 5 5 5IC3001 91 2 2 52IC3001 92 2.8 2.8 2.8IC3001 93 2.1 2.1 2.1IC3001 94 5.1 5.1 5.1IC3001 95 2 2 2IC3001 96 0 0 0IC3001 97 2.1 2.1 2.1IC3001 98 0 0 0IC3001 99 2 2 2IC3001 100 2.5 2.5 2.5IC3002 1 6.1 6.1 6.1IC3002 2 0 0 0IC3002 3 4.8 4.8 4.8IC3002 4 - - -IC3002 5 5 5 5IC3003 1 6.1 6.1 6.1IC3003 2 0 0 0IC3003 3 4.2 4.2 4.2IC3003 4 - - -IC3003 5 5 5 5IC4001 1 1.2 1.2 1.2

REF No. PIN No. REC PB EEIC4001 2 0 0 0IC4001 3 4.8 4.8 4.8IC4001 4 6.1 6.1 6.1IC4001 5 5 5 5IC7301 1 3.3 3.3 3.3IC7301 2 1.7 1.7 1.7IC7301 3 0 0 0IC7301 4 1.7 1.7 1.7IC7301 5 3.3 3.3 3.3IC7301 6 3.3 3.3 3.3IC7301 7 1.7 1.7 1.7IC7301 8 0 0 0IC7301 9 1.7 1.7 1.7IC7301 10 3.3 3.3 3.3IC7301 11 1.7 1.7 1.7IC7301 12 1.7 1.7 1.7IC7301 13 3.3 3.3 3.3IC7301 14 1.3 1.3 1.3IC7301 15 1.5 1.5 1.5IC7301 16 1.3 1.3 1.3IC7301 17 1 1 1IC7301 18 1.3 1.3 1.3IC7301 19 0 0 0IC7301 20 3.3 3.3 3.3IC7301 21 3.3 3.3 3.3IC7301 22 0 0 0IC7301 23 1.5 1.5 1.5IC7301 24 0 0 0IC7301 25 0 0 0IC7301 26 1.5 1.5 1.5IC7301 27 1.5 1.5 1.5IC7301 28 3.3 3.3 3.3IC7301 29 0 0 0IC7301 30 1.5 1.5 1.5IC7301 31 3.3 3.3 3.3IC7301 32 4.2 4.2 4.2IC7301 33 3.7 3.7 3.7IC7301 34 3.3 3.3 3.3IC7301 35 3.3 3.3 3.3IC7301 36 0 0 0IC7301 37 0 0 0IC7301 38 0 0 0IC7301 39 0 0 0IC7301 40 0 0 0IC7301 41 0 0 0IC7301 42 0 0 0IC7301 43 0 0 0IC7301 44 0 0 0IC7302 1 0 0 0IC7302 2 0 0 0IC7302 3 - - -IC7302 4 3.3 3.3 3.3IC7302 5 3.3 3.3 3.3IC7304 1 3.3 3.3 3.3IC7304 2 0 0 0IC7304 3 4.8 4.8 4.8IC7304 4 - - -IC7304 5 1.5 1.5 1.5IC7404 1 0 0 0IC7404 2 0 0 0IC7404 3 0 0 0IC7404 4 0 0 0IC7404 5 3.3 3.3 3.3IC7404 6 3.3 3.3 3.3IC7404 7 0 0 0IC7404 8 3.3 3.3 3.3

REF No. PIN No. REC PB EEIC7501 1 0 0 0IC7501 2 0 0 0IC7501 3 0 0 0IC7501 4 0 0 0IC7501 5 2.9 2.9 2.9IC7501 6 0.3 0.3 0.2IC7501 7 0.3 0.3 0.2IC7501 8 4.8 4.8 4.8IC7501 9 4.3 4.3 4.3IC7501 10 0.1 0.1 0.1IC7501 11 0.1 0.1 0.1IC7501 12 0 0 0IC7501 13 4.9 4.9 4.9IC7501 14 -17.8 -17.8 -20.7IC7501 15 -17.8 -17.8 -20.7IC7501 16 -9.3 -9.3 -20.7IC7501 17 -17.8 -17.8 -17.9IC7501 18 -20.7 -20.7 -20.7IC7501 19 -17.9 -17.9 -20.7IC7501 20 -6.5 -6.5 -20.7IC7501 21 -15 -15 -17.9IC7501 22 -0.1 -0.1 -15.1IC7501 23 -9.4 -9.4 -12.2IC7501 24 -9.4 -9.4 -20.7IC7501 25 -17.9 -17.9 -20.7IC7501 26 -20.7 -20.7 -20.7IC7501 27 -20.7 -20.7 -20.7IC7501 28 -20.7 -20.7 -20.8IC7501 29 -12.2 -12.2 -20.8IC7501 30 -21.4 -21.4 -21.4IC7501 31 -20.9 -20.9 -21IC7501 32 -20.9 -20.9 -20.8IC7501 33 -20.9 -20.9 -21IC7501 34 -20.9 -20.9 -21IC7501 35 -20.9 -20.9 -21IC7501 36 -18.4 -18.4 -18.4IC7501 37 -18.1 -18.1 -18.2IC7501 38 -18.1 -18.1 -18.2IC7501 39 -18.1 -18.1 -18.2IC7501 40 -18.1 -18.1 -18.2IC7501 41 -18.1 -18.1 -18.2IC7501 42 -18.1 -18.1 -18.2IC7501 43 4.9 4.9 4.9IC7501 44 0 0 0IC7801 1 6.1 6.1 6.1IC7801 2 0 0 0IC7801 3 4.6 4.6 4.6IC7801 4 - - -IC7801 5 5 5 5IC7802 1 1.4 1.4 1.4IC7802 2 0 0 0IC7802 3 4.8 4.8 4.8IC7802 4 6.1 6.1 6.1IC7802 5 5 5 5

S-3

REF No. PIN No. REC PB EEP7402 1 5.1 5.1 5.1P7402 2 3.3 3.3 3.3P7402 3 4.9 4.9 4.9P7402 4 0.1 0.1 0.1P7402 5 4.8 4.8 4.8P7402 6 0.6 0.6 0.6P7402 7 4.8 4.8 4.8P7402 8 3.3 3.3 3.3P7402 9 4.8 4.8 4.8P7402 10 0 0 0P7402 11 0 0 0P7402 12 3.3 3.3 3.3P7402 13 0 0 0P7402 14 3.3 3.3 3.3P7402 15 3.3 3.3 3.3P7402 16 3.3 3.3 3.3P7402 17 0 0 0P7402 18 3.3 3.3 3.3P7402 19 3.3 3.3 3.3P7402 20 0 0 0P7402 21 3.3 3.3 3.3P7402 22 3.1 3.1 3.1P7402 23 2.1 2.1 2.1P7402 24 3.1 3.1 3.1P7402 25 4.5 4.5 4.5P7402 26 3.3 3.3 3.3P7402 27 2.1 2.1 2.1P7402 28 3.3 3.3 3.3P7402 29 5 5 5P7402 30 3.3 3.3 3.3P7402 31 0 0 0P7402 32 6.1 6.1 6.1P7402 33 2.5 2.5 2.5P7402 34 6.1 6.1 6.1P7402 35 2.5 2.5 2.5P7402 36 1.2 1.2 1.2P7402 37 0 0 0P7402 38 4.8 4.8 4.8P7402 39 0 0 0P7402 40 0 0 0P7402 41 0 0 0P7402 42 0 0 0P7402 43 0 0 0P7402 44 12.3 12.3 12.3P7402 45 0 0 0P7402 46 12.3 12.3 12.3P7402 47 0 0 0P7402 48 0 0 0P7402 49 0 0 0P7402 50 0 0 0P7402 51 0 0 0P7402 52 5 5 5P7402 53 3.3 3.3 3.3P7402 54 5 5 5P7402 55 0 0 0P7402 56 0 0 0P7402 57 0 0 0P7402 58 12.4 12.4 12.4P7402 59 0 0 0P7402 60 12.4 12.4 12.4P7402 61 0 0 0P7402 62 12.4 12.4 12.4P7402 63 0.5 0.5 0.5P7402 64 12.4 12.4 12.4P7402 65 0 0 0P7402 66 1.7 1.7 1.7

REF No. PIN No. REC PB EEP7402 67 0.8 0.8 0.8P7402 68 5 5 5P7402 69 0 0 0P7402 70 0 0 0P7402 71 0.8 0.8 0.8P7402 72 2 2 2P7402 73 0 0 0P7402 74 0 0 0P7402 75 0.5 0.5 0.5P7402 76 1.6 1.6 1.6P7402 77 0 0 0P7402 78 0 0 0P7402 79 0.9 0.9 0.9P7402 80 0 0 0P7402 81 0 0 0P7402 82 0 0 0P7402 83 1.8 1.8 1.8P7402 84 0 0 0P7402 85 0 0 0P7402 86 0 0 0P7402 87 2.1 2.1 2.1P7402 88 0 0 0Q1501 1 5 5 5Q1501 2 5 5 5Q1501 3 2.5 2.5 2.5Q1501 4 5 5 5Q1501 5 5 5 5Q1501 6 5 5 5Q1509 1 12.3 12.3 12.3Q1509 2 12.3 12.3 12.3Q1509 3 6.1 6.1 6.1Q1509 4 12.4 12.4 12.4Q1509 5 12.3 12.3 12.3Q1509 6 12.3 12.3 12.3Q1601 1 6.1 6.1 6.1Q1601 2 6.1 6.1 6.1Q1601 3 10.1 10.1 10.1Q1601 4 12.4 12.4 12.4Q1601 5 6.1 6.1 6.1Q1601 6 6.1 6.1 6.1Q1602 1 6.1 6.1 6.1Q1602 2 6.1 6.1 6.1Q1602 3 6 6 6Q1602 4 6.1 6.1 6.1Q1602 5 6.1 6.1 6.1Q1602 6 0 0 0Q3001 E 5 5 5Q3001 C 5 5 5Q3001 B 4.3 4.3 4.3Q4001 E 11.7 11.7 11.7Q4001 C 11.6 11.6 11.6Q4001 B 11 11 11Q7501 E -18.5 -18.5 -18.5Q7501 C 4.9 4.9 4.9Q7501 B -18.4 -18.4 -18.4Q7502 E 12.3 12.3 12.3Q7502 C 0 0 0Q7502 B 12.2 12.2 12.2Q7510 E 0 0 0Q7510 C 9.2 9.2 9.2Q7510 B -0.1 -0.1 -0.1Q7802 E 0 0 0Q7802 C 4.8 4.8 4.8Q7802 B 0 0 0Q7803 E 0 0 0Q7803 C 0 0 0

REF No. PIN No. REC PB EEQ7803 B 0.7 0.7 0.7

QR1501 E 0 0 0QR1501 C 0 0 0QR1501 B 3.3 3.3 3.3QR1503 E 0 0 0QR1503 C 0 0 0QR1503 B 3.3 3.3 3.3QR1601 E 0 0 0QR1601 C 0 0 0QR1601 B 3.1 3.1 3.1QR4001 E 0 0 0QR4001 C 0 0 0QR4001 B 4.8 4.8 4.8QR7501 E 0 0 0QR7501 C 12.1 12.1 12.1QR7501 B 0 0 0

REF No. PIN No. REC PB EEIC7701 1 4.9 4.9 4.9IC7701 2 0 0 0IC7701 3 4.9 4.9 4.9

S2.2. Front_R P.C.B.

S-4

REF No. PIN No. REC PB EEIC1150 1 2.2 2.2 2.2IC1150 2 1.7 1.7 1.7IC1150 3 0 0 0IC1150 4 15 15 15IC1150 5 0 0 0IC1150 6 - - -IC1150 7 - - -IC1150 8 - - -IC1150 9 - - -IC1201 1 0 0 0IC1201 2 0 0 0IC1201 3 7.9 7.9 7.9IC1201 4 2.5 2.5 2.5Q1160 E 0 0 0Q1160 C 6.8 6.8 6.8Q1160 B 0.1 0.1 0.1Q1200 1 8.9 8.9 8.9Q1200 2 7.9 7.9 7.9Q1200 3 0 0 0Q1200 4 1.7 1.7 1.7Q1220 1 1.2 1.2 1.2Q1220 2 0.1 0.1 0.1Q1220 3 0 0 0Q1220 4 0.1 0.1 0.1

QR1220 E 0 0 0QR1220 C 0.1 0.1 0.1QR1220 B 3.1 3.1 3.1T1150 1 0 0 0T1150 2 - - -T1150 3 - - -T1150 4 - - -T1150 5 - - -T1150 6 - - -T1150 7 - - -T1150 8 - - -T1150 9 - - -T1150 10 0 0 0T1150 11 0 0 0T1150 12 0 0 0

S2.3. Power P.C.B.

S-5

UNREG +38V TO U/V TUNERD7506

H

DR+5V

DR P ON

P SAVE L

D

B

A

C

X SW+5.8V

T7501

71

IP7501

21

H

DR+12V

( :ON)QR1501

FET DSG

Q1509(DR+12V OUT)

4 1

2

5

6

3

P1102 P15015, 6, 7, 8

P59001P740232, 34

P7402 P590012

FROM DIGITAL P.C.B.ANALOG TIMERBCLOCK SECTION

TO DIGITAL P.C.B.

DISPLAY HEATERPOWER SWICHINGTRANSFORMER

POWERSUPPLYCONTROL

Q7502, QR7501

QR1220

AC INLETP1101 SURGE

SUPPRESSORANDSURGEABSORBER

F1101

VA1110,L1120,L1121 D1140,C1143

RECTIFIER

T1150POWERSWITCHINGTRANSFORMAR

6 P1

4

2

1

P2

B1

B2

NS12

NS12

G

G

9

8

10

1

32

D1270

16

12

15

10V5

VIN

IC1601(DC/DC CONVERTER)

FET DSG

3

4

1

2

5

6

Q1601(REG.X SW+5.8V)

4

3 2

1

Q1200

4

3 2

1

Q1220(FEED BACK)

3

4

2

IC1201

COLDHOT

POWER P.C.B.

14

12

7

1

2

7

6

Vin

V5

FETGateDrive

GND

IC1730(DC/DC CONVERTER)

8CurrentSense FET

DS

G

1

2

5

6

Q1701(REG.DR+5V)

4

3

GND

VB

EXTUP

MAIN P.C.B.

P1102 P15011

P7402 P5900122

FROM DIGITAL P.C.B.TIMER BLOCK SECTION

(ERROR VOLTAGE DET.)

(FEED BACK)

NS12

G 11

DMR-EX83EG/EB/EP/EC,EX773EB/EP/ECMain P.C.B. Power Supply Block Diagram (1/2)

Q1160(POWER CONT.)

D1151

D1160

D1161

2

1 3 4

9

5

IC1150(SWITCHING)

VCCGNDZ/C

F/B

7VIN

D1152

D1156

S3. Block DiagramS3.1. Main P.C.B. Power Supply Block Diagram

S3.1.1. Main P.C.B. Power Supply Block Diagram (1)

S-6

DMR-EX83EG/EB/EP/EC,EX773EB/EP/ECMain P.C.B. Power Supply Block Diagram (2/2)

FET DS

G

Q1501(DR+5V OUT)

4 1

2

5

6

3

PS+5V

D+3.3V

GND

BOOSTER+5V

AU+5VAU+5V

LI/O P SAVEIC3001- 36

PS+11.6VIC3001- 46

(REG. AU+5V)IC4001

VOUTVIN 5

2CONT

3

4GND

H :ON

(REG.+1.5V)IC7304

VOUT

(DMR-EX83EG/EP/EC)

VIN 5

2 3

1GND

948442IC3001- / /

(REG. BOOSTER+5V)IC3002

VOUT 5

2GND

3CONT

1 VIN5 6 101IC7301- / 13/ / / / /20 21

28/ 35/

3023IC7301- /

402586IC3001- / / /

(REG. PS+5V)IC3003

VOUTVIN 5

32

1CONT

MAIN P.C.B.

A

B

C H

D

IC7302

5 4VIN OUT

(RESET)

34IC7301-

4P1503

TO HDD1

P1503

DR+5V

DR+12V

DR P ON

QR1503( H : ON)

P59001P740244,46

P59001P740258,60,62,64

P59001P740253

P59001P740229

ANA+5V P59001P740268

P59001P740252,54

P7402P5900126

Q3001( :ON)

DR+5V DR+5V

TO U/V TUNER

AV IO P ON

PS +11.6V

FROM DIGITAL P.C.B.

FROM DIGITAL P.C.B.ANALOG TIMERBLOCK SECTION TO DIGITAL P.C.B.

ANALOG TIMERBLOCK SECTION

HDD P FAIL

IC7802(5V REGULATOR)

4

3

5+5V

P59001P74022

TO DIGITAL P.C.B.

TO DIGITAL P.C.B.ANALOG TIMERBLOCK SECTION

TO DIGITAL P.C.B.

P59001P74025

FROMDIGITAL P.C.B.ANALOG TIMERBLOCK SECTION

P59001P740211

P59001P74027

Q4001, QR4001( :ON)

TO U/V TUNERVOUTVIN:ONH

FROM /TO MAIN P.C.B.ANAROG AUDIO BLOCK SECTIONANDANAROG VIDEO BLOCK SECTION

TU P ONIC3001- 38

FROMMAIN P.C.B.

ANAROG AUDIOBLOCK SECTION

ANDANAROG VIDEO

BLOCK SECTION

L

L

BST ON

D+3.3V

H

DI P ON H

H

H

S3.1.2. Main P.C.B. Power Supply Block Diagram (2)

S-7

(SW17C)a

b(SW17V)

a

b

(SW17Y)a

b

P7402 P5900127

P7402 P5900123

P7402 P5900119

P7402 P5900121

V/Y IN DM

CPN CIN DM

MAIN P.C.B.

:PB SIGNAL:REC SIGNAL

CLAMP VTUNER

(DMR-EX83EG/EP/EC)

30

RED/C15

VIDEO/Y19

GREEN11 (TV)AV1BLUE7

21PIN JACKJK3901

V

OUT

VIDEO OUTJK3003

1

4

(DECODER/EXT)AV2VIDEO19

21PIN JACKJK3901

TU7801(U/V TUNER)

17 OUTVIDEO

DIGITAL P.C.B.TO

P59001P740283

87P7402 P59001

P59001P740288

84P7402 P59001

P59001P740280

86P7402 P59001

LOGICIIC BUS

SDA 89

SCL 88FROM/TODIGITAL P.C.B.ANALOG TIMERBLOCK SECTION

(SW10)

CLAMP

CLAMP

CLAMP

CLAMP

BIAS

CLAMP

SLICER 85

OUTADCV/Y

83

OUTC-ADC

81

TUNER VAV2 V/YAV2 R/C

AV3 VAV3 CAV3 YAV1 V

CIRCUITSWITCHSELECTOUTPUTADC

OUTVAV2

28

SV2

edcba

OUTVAV1

26

SV1

edcba

a

b

(SW9)

OUT

VSAG

V

24

23

a

b

(SW8)OUTC

22

(SW7)a

b

OUTY

20

19

OUTGAV1

Y SAG(COM)

Y SAG

17

6MHz (SW5)

12MHzabc

15

OUTYCOMP

14

(SW6)abcd

OUTBAV1

12

OUTB-YCOMP

11

6MHz (SW4)

12MHzabc

d

OUTR-CAV1

9

(SW3)abc

(VIDEO PROCESSOR)IC3001

OUTR-YCOMP

7

(SW2)abc

(SW1)

12MHz

6MHz

CLAMP

BIASCLAMP/

CLAMP

BIASCLAMP/

+

LPF6MHzCLAMP

BPF6MHzBIASENC C IN

ENC Y IN

ENC G/Y IN

ENC R/R-Y IN

ENC B/B-Y IN

a

b

CLAMP

BIAS

cba

AV2 V/Y

AV2 B

AV2 G

AV2 R/C

AV3 V

AV3 C

AV3 Y

AV1 V

AV2 V/Y

AV2 B

AV2 G

AV2 R/C

AV3 V

31

5

3

1

(DECODER/EXT)

(DMR-EX83EG/EB/EP/EC)

AV2

VIDEO/Y

BLUE

GREEN

RED/C

20

7

11

15

21 PIN JACKJK3901

VIDEO IN37

45

AV3JK3002FRONT JACK

41

2

1

33

99

97

95

93

91

AV1 VIDEO(TV)AV1 20

21 PIN JACKJK3901

FROMDIGITAL P.C.B.

BPBOUT DM

GPYOUT DM

RPROUT DM

Y OUT DM

C OUT DM

P5900179

P7402

P7402P5900175

71P59001 P7402

63P59001 P7402

67P7402P59001

< R >

< B >

< RGB CPSV >

< G >

AV4 VAV4 YAV4 C

35

39

43

AV4 V

AV4 Y

AV4 C

CLAMP

BIAS

CLAMP

DMR-EX83EG/EB/EP/EC,EX773EB/EP/ECMain P.C.B. Analog Video Block Diagram

C SYNC OUT 86

V SYNC OUT 82

S3.2. Main P.C.B. Analog Video Block Diagram

S-8

59 AV4 L IN

AV4 R IN51

OUT

(SA4L)SELECT SWITCHOUTPUT

AV2(DECODER/EXT)

(TV)AV1

:PB SIGNAL:REC SIGNAL

IEC OUT 1

(DIGITAL AUDIO OUT)OPTICALJK4901

P59001 P740266

G AADC L

G AADC R

AUDIO OUT Ch1(L)

AUDIO OUT Ch2(R)

MIX L OUT2

MIX R OUT2

AUDIO OUT Ch2(R)

AUDIO OUT Ch1(L)

REAR JACKJK3003

(R)LINE OUT

(L)LINE OUT

2

1

3

FROM DIGITAL P.C.B.ANALOG TIMER BLOCK SECTION

P740235

P59001

P7402 P5900133

(DECEODER/EXT)AV2

1

3

(TV)AV1

3

1

21 PIN JACKJK3901

LOGICIIC BUS

SDA 89

88SCL

71

55

63

AV1 L OUT

DT RIN

DT LIN

78

73

74

79OUT R

AV1 R OUT

AV2 R OUT

AV2 L OUT

OUT L

72

LPF

BUFF.

MUTE

AGC AMPADC Lch

LPF

BUFF.

MUTE

LPF

BUFF.

MUTE

dcba

MUTE

BUFF.

LPF

AMPADC RchAGC

(NICAM/A2)IC7301

SIF L OUT

R OUT

12

7

18 TULIN62

54 TURIN

(DMR-EX83EG/EP/EC)

(DMR-EX83EG/EB/EP/EC)

(SA18L)BUFF.

edcba

(SA1L)

edcba

(SA3L)

edcba

(SA2L)58 AV3 LIN(FRONT)AV3

FRONT INPUT JACKJK3002

AUDIO

(Lch/MONO)LINE

(Rch)LINE

3

4

567

dcba

(SA4R)SELECT SWITCHOUTPUT

AV3 RIN50

(SA18R)BUFF.

edcba

(SA2R)

AUDIO IN ch1(L)

AUDIO IN ch2(R)

AUDIO IN ch1(L)

AUDIO IN ch2(R)21 PIN JACKJK3901

6

2

6

2

AV2 LIN61

AV2 RIN53

AV1 LIN

AV1 RIN

DALIN

DARIN

60

52

edcba

(SA3R)

edcba

(SA1R)

(AUDIO SIGNAL PROCESSOR)IC3001

64

56

MIX L OUT DM

MIX R OUT DMFROMDIGITAL P.C.B.BACK END SECTION P59001 P7402

41

43P7402P59001

MAIN P.C.B.

AV4

TUN

AV4

TUN

TU7801

SIF OUT 7

P59001P740219

P59001P740221

P59001P740249

P59001P740247

FROMDIGITAL P.C.B.BACK END SECTION

TODIGITAL P.C.B.BACK END SECTION

TODIGITAL P.C.B.BACK END SECTION

(SA17R)

76 RF OUT MUTE VCA +MIX

(SA17L)

U/V TUNER

DMR-EX83EG/EB/EP/EC,EX773EB/EP/ECMain P.C.B. Analog Audio Block Diagram

S3.3. Main P.C.B. Analog Audio Block Diagram

S-9

P59001 P74028

P59001 P74026

P59001 P74024

P59001 P740210

TO MAIN P.C.B.POWER SUPPLYBLOCK SECTION

FROM MAIN P.C.B.ANAROG AUDIO BLOCK SECTIONANDANAROG VIDEO BLOCK SECTION

L

VEE 30

-VP 5

MAIN P.C.B.

VSS12

UNREG.+38V

( :ON)Q7510

X SW+12V

(IC PROTECTOR) Q7502,OR7501POWERSUPPLYCONTROL

IP7501

21

VDD13VDD43

FL CS FL CS

LPSAVE L

H

PSAVE49

STB9

T7501DISPLAY HEATERPOWER SWITCHINGTRANSFORMER

6

7

GND

+38V

+B

HEATER +

HEATER -8

3

1

9

TIMER+5V

FL TXD FLTXD5

TIMER

DP7501

F-

F+

1

35

IC7501(DISPLAY DRIVE)

FL CLK FL CLK CLKDIN7

87

SG1 14SG2 15SG3 16SG4 17SG5 18SG6 19SG7 20SG8 21SG9 22

SG10 23SG11 24SG12 25SG13 26SG14 27SG15 28SG16 29

GR1 42 32

3130282625232220191716141312108

24211815119

GR2 41GR3 40GR4 39GR5 38GR6GR7

3736

P1P2P3P4P5P6P7P8P9P10P11P12P13P14P15P16

2G1GA

3G4G5G6G7G

D7505

DISPLAY

P7402P5900123

45

S3.4. Digital P.C.B. Analog Timer Block Diagram

S3.4.1. Digital P.C.B. Analog Timer Block Diagram (1)

S-10

P59001P740216

P59001P740214

( :ON)Q7510

X SW+12V

(IC PROTECTOR) Q7502,OR7501POWERSUPPLYCONTROL

IP7501

21

LPSAVE L

H

PSAVE

FRONT (L) P.C.B.

MAIN P.C.B.

S7201POWER

S7506STOP

KEY3

KEY2

P57503P72011

S7504REC

S7501CH DOWN

S7507PLAY

S7503CH UP

KEY IN2

KEY IN388

87

49 P59001 P740210

3P57501

1P57501 M

(FAN MOTOR DRIVE)Q57512

FAN

OUT

P59001 P74028

P59001 P74026

P59001 P74024

TO MAIN P.C.B.POWER SUPPLYBLOCK SECTION

P59001 P740227

P59001 P74022

P59001 P74025

P59001 P74027

PW D+3.3V

IC57503(3.3V DET)

13 IN OUT

P59001P740253

PW X SW+12V

IC57502(12V DET)

12 IN OUT

FROM MAIN P.C.B.POWER SUPPLY BLOCK (2/2) SECTION

FROM MAIN P.C.B.ANALOG VIDEO BLOCK SECTION

TO MAIN P.C.B.POWER SUPPLY BLOCK (1/2) SECTION

TO MAIN P.C.B.POWER SUPPLY BLOCK (2/2) SECTION

FROMANAROG AUDIO BLOCK SECTIONANDANAROG VIDEO BLOCK SECTION6

7

4

HSYNC

HSYNC(DMR-EX83EG/EP/EC)

(DMR-EX83EB,EX773EB/EP/EC)

(DMR-EX83EB,EX773EB/EP/EC)VSYNC

P7402P59001

P7402P5900123

25

(DMR-EX83EG/EP/EC)

(DMR-EX83EG/EP/EC)

(DMR-EX83EG/EP/EC)


(DMR-EX83EG/EP/EC)

(DMR-EX83EG/EP/EC)

H

L

H

H

H

VEE 30

-VP 5

DIGITAL P.C.B. MAIN P.C.B.

G SBPTM A

G SBMTP A

G SCLK A

IC50001-SBMTPTBUS RXD

TBUS TXD

TU P ON

DR P ON

VSS12

UNREG.+38V

VDD13VDD43

FL CS FL CS45 STB9

T7501DISPLAY HEATERPOWER SWITCHINGTRANSFORMER

6

7

GND

+38V

+B

HEATER +

HEATER -8

3

1

9

73

82

SYS PFAIL

H( :ON)

H( :ON)

L

L

L

74 PFAIL

3.3V DET

G5

F4

G1

TIMER+5V

FL TXD5

TIMER

DP7501

F-

F+

1

35

TODIGITAL P.C.B.

36

FAN PWM OUT 22

FAN LOCK1 39

TBUS CLK

35

37 IC50001-SCLK

IC50001-SBPTM

DR POWER ON 42

40HDD PFAIL

Q57501

Q57505

TU POWER ON

DI POWER ON

43

44 DI P ON

XIN

XOUIT

15

13

10MHzX57501

XCOUT

XCIN

11

10

32.768KHzX57502

BUFFER

Q57511FAN MOTORDRIVE

BUFFER

CVIN1

SYNC IN

IC7501(DISPLAY DRIVE)

FL CLK

FL CLK

FL CLK CLKDIN7

87

IC57501(TIMER)

SG1

REMOTE CONTROL

IR



(DMR-EX83EG/EP/EC)

(DMR-EX83EG/EP/EC)

KEY IN1

98

89

14SG2 15SG3 16SG4 17SG5 18SG6 19SG7 20SG8 21SG9 22

SG10 23SG11 24SG12 25SG13 26SG14 27SG15 28SG16 29

GR1 42 32

3130282625232220191716141312108

24211815119

GR2 41GR3 40GR4 39GR5 38GR6GR7

3736

P1P2P3P4P5P6P7P8P9P10P11P12P13P14P15P16

2G1GA

3G4G5G6G7G

3

5

D7505

86

CTL.GNDVDD

FRONT (R) P.C.B. MAIN P.C.B.

P7503S7701

OPEN/CLOSE 3

P7503PP7701

PP7701

PP7701

1

P75032

IC7701

13 2

P59001P740218

P59001P7402

X SW +5V

IR

KEY 112

REMOTE CONTROLRECEIVER

HDD PFAIL

FAN MOTOR

DISPLAY

DMR-EX83EG/EB/EP/EC,EX773EB/EP/ECDigital P.C.B. Analog Timer Block Diagram

Q57507

PW D+3.3V

H( :ON)

FAN PWM OUT 26

52

51

FL TXD

FL TXD

P59001P7402

P59001P740221

19TO MAIN P.C.B.ANAROG AUDIO BLOCK SECTIONANDANAROG VIDEO BLOCK SECTION

9

10

31

32 IIC CLK

IIC DATA

U/VTUNERTU7801

IIC CLK

IIC DATA

25

26

Q57502PW X SW+3.3V

PW X SW+3.3V

Q57501

IC50001-RXD

IC50001-TXD 31

32 RXDG UARTP2M A

G UARTM2P ATXD

IIC CLK

IIC CLK

P59001P740222

TO MAIN P.C.B.POWER SUPPLY BLOCK (1/2) SECTION 47 PSAVE

LPSAVE

H3

G2

TO / FROMDIGITAL P.C.B.

PW X SW+12V

SDA

SCL

S3.4.2. Digital P.C.B. Analog Timer Block Diagram (2)

S-11

JK56101(HDMI)

P59001P7402

DVD DRIVE

DIGITAL P.C.B.

MAIN P.C.B.

87

CLOSE SWGND

P50001

1110987

COILWCOILVCOILUH+HU+

FP50003

HV+

HW-

HU-56

HV-HW+

H-

34

12

FP50004

CARTRIGE

LM-

REC INH56

PHOTO_LEDOPEN_SW

LM+

34

12

FP50002

B+

GND

B-56

A+A-

GND

34

12

ACT FOC1-ACT FOC1+ACT TRK-ACT TRK+

45444342

ACT FOC2+ 41ACT FOC2-GNDSMOUTOEIC SW1OEIC SW2OEIC HLOEIC GKOEIC FJOEIC EIOEIC AOEIC BOEIC RF-OEIC RF+OEIC COEIC DFM/OEIC VCC:5VFM VOUT+FM VOUT-OEIC VC

LDU CD/DVDLDU HFMNLDU HFMLDD WNLDD W3LDD W2NLDD W2LDD W1NLDD W1SC/ROHMLDD IINW3

OEIC GND

LDD IINRD

LDD ENABLE

LDD IINW2

LDD VCC1

LDD IINW1

LDD GND2

4039383736353433323130292827262524

56789

10111213141516171819

22

20

23

21

LDD VSSLDD VSS

LDD VCC121

34

87

CLOSE SWGND

1110987

COILWCOILVCOILUH+HU+

HV+

HW-

HU-56

HV-HW+

H-

34

12

CARTRIGE

LM-

REC INH6

PHOTO_LEDOPEN_SW

LM+

34

12

B+

GND

B-56

A+A-

GND

34

12

ACT FOC1-ACT FOC1+ACT TRK-ACT TRK+

45444342

ACT FOC2+41ACT FOC2-GNDSMOUTOEIC SW1OEIC SW2OEIC HLOEIC GKOEIC FJOEIC EIOEIC AOEIC BOEIC RF-OEIC RF+OEIC COEIC DFM/OEIC VCC:5VFM VOUT+FM VOUT-OEIC VC

LDU CD/DVDLDU HFMNLDU HFMLDD WNLDD W3LDD W2NLDD W2LDD W1NLDD W1SC/ROHMLDD IINW3

OEIC GND

LDD IINRD

LDD ENABLE

LDD IINW2

LDD VCC1

LDD IINW1

LDD GND2

4039383736353433323130292827262524

56789

10111213141516171819

22

20

23

21

LDD VSSLDD VSS

LDD VCC121

34

P51001

321

67

54

8887868584838281807978777675747372717069686766656463626160595857565554535251504948474645444342414039383736353433323130292827262524

5678910111213141516171819

22

20

23

21

G_INCPNCIN_DMB_INDGNDR_INV_YIN_DMDGNDDGNDRGB_CPSVINBPBOUT_DMDGNDDGNDDT_Y_INGPYOUT_DMDGNDDGNDDT_C_INRPROUT_DMDGNDDGNDANA5VCOUT_DMIECOUTDGNDX_SW_12VYOUT_DMX_SW_12VDGNDX_SW_12VIF_OUT [+]X_SW_12VIF_OUT [-]DGNDIF_AGCDR5VHDD_PFAILDR5VDGNDDRGNDDEC_AU_RDRGNDDEC_AU_LDR12VAUGNDDR12VMIXROUT_DMDGNDMIXLOUT_DMAV2_PIN8AUGNDP50AUGNDAV2_BLANKINGAADC_RX_SW_5R8VAADC_LX_SW_5R8VDGNDI2C5DTAU5VI2C5CKSLICERD3R3VCSYNCTEST2VSYNCSP_PSAVE_L

DGNDIIC_CLKIRAFCKEY3ANT_SHORT_LKEY2DGNDKEY1AVIO_PON_LSP_PSAVE_L_DL

IIC_DATA

TU_P_ON_H

DI_P_ON_H

ANT_PON_H

DR_P_ON_H

FL_TXD

FL_CLK

FL_CSTIMER5V

TB5V

G_INCPNCIN_DMB_INDGNDR_INV_YIN_DMDGNDDGNDRGB_CPSVINBPBOUT_DMDGNDDGNDDT_Y_INGPYOUT_DMDGNDDGNDDT_C_INRPROUT_DMDGNDDGNDANA5VCOUT_DMIECOUTDGNDX_SW_12VYOUT_DMX_SW_12VDGNDX_SW_12VIF_OUT [+]X_SW_12VIF_OUT [-]DGNDIF_AGCDR5VHDD_PFAILDR5VDGNDDRGNDDEC_AU_RDRGNDDEC_AU_LDR12VAUGNDDR12VMIXROUT_DMDGNDMIXLOUT_DMAV2_PIN8AUGNDP50AUGNDAV2_BLANKINGAADC_RX_SW_5R8VAADC_LX_SW_5R8VDGND12C5DTAU5VI2C5CKSYLICERD3R3VCSYNCTEST2VSYNCSP_PSAVE_L

DGNDIIC_CLKIRAFCKEY3ANT_SHORT_LKEY2DGNDKEY1AVIO_PON_LSP_PSAVE_L_LD

IIC_DATA

BST_ON_H

DI_P_ON_H

ANT_PON_H

DR_P_ON_H

FL_TXD

FL_CLK

FLCSTIMER5V

BACK5V21

34

8887868584838281807978777675747372717069686766656463626160595857565554535251504948474645444342414039383736353433323130292827262524

5678910111213141516171819

22

20

23

21

21

34

P1503

DR_GND

DR5VDR_GND

DR12V21

34

1110987

G

F

6

E

D

C

5

InterconnectionSchematic Diagram

4321

B

A

TU7801(U/V TUNER)

ACTTV_5V1ANT_5V2

BTL_30V3

BT4

RF_AGC5SIF_OUT6AUDIO_OUT7GND8SCL9SDA10NC11VIF_5V12

NC13NC14TUNER_5V15

AFT_OUT16VIDEO_OUT17IFD_OUT118IFD_OUT219IF_AFC20IF_OUT21

POWER P.C.B.

P1101(AC IN)

NA

GND

987654

X_SW12V

X_SW12VX_SW12VX_SW12V

GND

GND

P_SAVE_LP1102

GND 3

12

P1501

GND

X_SW12V

X_SW12VX_SW12VX_SW12V

GND

GND

P_SAVE_L

GND

9876543

12

NC OPENGND

123

X_SW_5VKEY_OPEN_CLOSE

PP7701

NC OPEN 4

65

FRONT (R) P.C.B.IR

P7503

6543

12 X_SW_5V

IR

KEY1 (OPEN/CLOSE)KEY2 (REC)NC0GND

NCKEY_POWER KEY_POWER

P7201

GND 3

12 NC

GND

P57503

3

12

FRONT (L) P.C.B.FAN MOTOR

P57502

21

3

FANOUTGNDFANLOCK

DMR-EX83EG/EB/EC/EP,EX773EB/EC/EP

HDD1X-1X+

GND

GNDRX-

GND

RX+

JK57001(DV IN)(DMR-EX83)

JK56001(USB)

JK3901(AV1 / AV2)

JK4901(DIGITAL AUDIO OUT/OPTICAL)

JK3002(VIDEO/AUDIO IN)(DMR-EX83)

JK3003(VIDEO/AUDIO OUT)

JK53501(SD)(DMR-EX83)

5

S4. Schematic DiagramS4.1. Interconnection Diagram

S-12

CL7402

CL7503

CL7502

CL7501

CL7524

CL7523

CL75

08CL

7509

CL1502 CL1501

CL75

04CL

7505

CL75

06CL

7507

CL7405

CL7404

CL7403

CL7413CL7414

CL7401

CL7409

CL7425

CL1505

CL1504

CL15

03

CL1506

CL7406

2 13

K9ZZ

0000

1279

ZJ74

05

21 3

K9ZZ

000012

79ZJ

7401

21 3

K9ZZ

000012

79ZJ

7402

2 13

$[K9

ZZ00

0012

79]

ZJ74

04

2 13

$[K9

ZZ00

0012

79]

ZJ74

06

2 13

*ZJ

7407

G_SLICER_A

ANT_SHORT_LAFC

G_CSYNC_AG_VSYNC_A

ANA5V

AV2_8

AV2_BLANKINGG_AADC_R_AG_AADC_L_A

G_IFOUT_PG_IFOUT_M

$[VFV0163]ZS1501ZB7501 RMN0915

VFV0187ZS1504

VFV0164ZS1502VFV0167ZS1503

ZB7502 RMN0916ZB7503 RMN0917

S7503EVQ11A04M

S7507EVQ11A04M

S7504EVQ11A04M

S7506EVQ11A04M

S7501EVQ11A04M

5600R7644

R7642 5600

R7639 2700

R7640 2700

R756

147

K

R754

468k

R750

427

0[DI

]

R753

082

K[D]

R751

133

00

R751

2VW

J079

5=5

10k

R751

3

R75015600

47R7502

R751

033

00

22K

R151

9R1

518

22K

4700

R741

4

R7412 4700R7411 4700

R7505180

R750

3$

R161

3

6800

[D]

200K

[D]

R161

7

R161

136

K

36K

R160

8

51K

R161

6

R1603

5600R1602

ERJ3GEY0R00V

470K

R160

9

R161

524

K[D]

470K

R161

2

47K

R160

5

R160

4

220K

470K

R160

6

R150

210

k

8200

R150

7 R150582K

2200

R150

6

1500[D

]R1

511

R150

939

K[D]

R151

011

K[D]

R7408 *

R160133K

R1610

D1BDR027A101

R7401 *

R7402 *

R7405 *

R7406 *

R7407 *

R7409 *

R7410 *

R7413 *

R7415 *

R7416 *

86 742 5 91 16 1714 151210 11 13 35262423 2521 221918 20 343229 3027 28 31

DP7501A2BD00000192

$[ER

J3GE

Y0R0

0V]

K751

1

K7505VWJ0795=20

VWJ0795=17.5K7501

VWJ0795=5

K1601

K1501

VWJ0795=5

K1604VWJ0795=5

$[VWJ0795=5]K1603

K1504$[VWJ0795=5]

K7401VWJ0795=12.5

K7403VWJ0795=17.5

K7405VWJ0795=12.5

K7402VWJ0795=12.5

K7404VWJ0795=17.5

K7406VWJ0795=17.5

F2A1

H100

A454

C757

1 50V

F2A1

H100

B034

C757

350

V

F2A1

V560

A387

C757

0

35V

F2A1

C121

A453

C757

216

V

F2A1

C221

0095

C756

5

16V

C7402 $[F2A0J470A117]

$[F2A1

C330

0040]

C1545

C154

9$[

F2A1

C560

A446

]

$[F2

A1C5

60A446

]C1

548

$[F2

A1A4

7000

41]

C151

6

C152

4F2A1

A470

0041

10V

C153

0$[

F2A1

A470

0041

]

F2A1A4700041C1611

10V

F2A1

A181

0008

C152

3 10V

F2A1

A181

0008

C152

2 10V

C7501*

C152

9F2

A1A4

70A8

63

10V

F2A1

C330

B101

C154

1

16V

C7405*

B1ABDF000026Q7501

B1BA

BK00

0001

Q751

0

T_UNREG_38V

DI_P_ON_HBST_ON_H

ANT_P_ON_HAVIO_PON_L

G_IIC_CLK_AG_IIC_DATA_A

G_IEC_OUT_A

X_SW_12R5V

G_MIXLOUT_AG_MIXROUT_A

G_DT_IN_R_AG_DT_IN_L_A

G_IFAGC

PW_D3R3V

B0BA

0360

0021

D750

1

D7504 B0BA02100001

B0BA

0170

0031

D750

8

B0AADM000003D7505

B0AADM000003D7506

B0HAMP000067D7507

B0JC

MD00

0014

D160

2

B0JC

MD00

0014

D160

1

D7510 B0ACCE000003

1

56

32

4

P7503

K1KB06B00033

2

9

1

67

84

3 5

T7501G4D1A0000117

134 2

P150

3K1

KA04

AA0301

G1501

G1502

GND

G_B_IN_AG_G_IN_A

G_R_C_IN_A

G_AV2_VIN_A

P50

AU_5V

AUGND

G_GPYOUT_D_A

G_RPROUT_D_A

G_BPBOUT_D_A

G_YOUT_DM_A

G_COUT_DM_A

G_CIN_DM_A

G_V_YIN_DM_A

G_ASCO_TXD

G_ASCO_RXD

G_DIG_DATA_A

G_DIG_SCLK_A

G_DIG_CS_A

X_SW_5R8V_AV

X_SW_5R8V

G_DT_C_IN_A

G_DT_Y_IN_A

1

89

34

2

7

56

K1KY09AA0606P1501

21

IP7501K5H751Z00003

52

613 4

Q1509B1CHQD000010

52

613 4

B1DHDD000022Q1601

52

613 4

Q1602B1CFRD000023

52

613 4

Q1501B1CHQD000010

QR15

01B1

GBCF

NN00

41

QR7501B1GBCFLL0043

QR1601B1GBCFNN0041

QR1503B1GBCFNN0041

G0C3

90JA

0055

L750

1

L7401VWJ0795=5

4321

10

1816

22

3028

34

44

48

52

56

60

64

68

7274

70

66

62

58

54

50

46

42

32

3840

36

2426

20

1214

9

5 67 8

1311

19

29

2527

33

43

47

51

55

59

63

67

7173

69

65

61

57

53

49

45

41

31

2123

35

3937

1517

75 7677 7879 8081 8283 8485 8687 88

K1KA88A00003P7402

C7403$

C7410 $(1000p)

C7407$

C7409$

C741

7F1

H1C1

04A0

71

16V

C751

2F1

H1C1

04A0

7116V

F1H1H392A013

C756950V

C7415 F1J1C105A09116V

C1528

F1H1C105A095

16V

C160

2F1

J1C1

0600

01

16VF1J

1C10

6000

1C1

601

16VF1J

1C10

6000

1C1

617

16V

C750

9F1

H1H104

A748

50V

F1H1

H560

A004

C160

9 50V

F1H1C104A071C1605

16V

$[F1H1H332A013]

C1604

C160

3

F1H1

C104

A071

16V

F1H1C105A095C1606

16V

C161

2F1

J1C1

0600

01

16V

C161

4F1

J1C1

0600

01

16V

F1J1

C106

0001

C161

6

16V

F1J1

C106

0001

C161

3

16V

F1J1

C106

0001

C161

5

16V

F1J1

C106

0001

C161

0

16V

F1H1

H221

A004

C160

750V

C1526F1H1A105A028

10V

C152

7F1

H1A1

05A0

28

10V

C151

7$[

F1H1

A105

A028

]

F1H1

C104

A071

C152

516V

F1H1H270A004C1608

50V

G0C100K00043L7403

L1601$[G0C100K00043]

$[G0C100K00043]

L1505

G0C100K00043L1603

L150

4

G0C2

20K0

0039

L1602G0A100ZA0045

TL7401

13

2

D7502

B0ADCH000007

13

3

34 22

3638

4341

4042

4439

3735

20

6

1813

14

11

12

10

1715

16

87 9

19

42 3 5

21

31 29 27 25 232426283032

IC7501C0HBB0000061

134

1516

14

12

36

57

8

1211

910

IC1601C0DBAYY00624

LB1501$[J0JKB0000003]

ERJ6

GEY0

R00V

LB16

01

*LB7426

*LB7427

531

42

IC1506C0DAEYH00002

B1ADLB000006Q7502

2 134

6 875

IC74

04C3

EBFC

0000

53

VEE_21V

S1

S1

S2

S2

G2

G2

S3

S3

G3

G3

S4

S4

G4

G4

S5

S5

G5

G5

S6

S6

G6

G6

S7

S7

G7

G7

S8

S8

S9

S9

S10

S10

S12

S12

S11

S11

S13

S13

S14

S14

S15

S15

S16

S16

F_M_18V

F_P_15V

DR_GND

G

G

G

G

G

G

G

D

D

D

D

DD

D

D

D

D

DD

DD

D DDGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

DGND

AFC

AV

AV

AV

AVAV

AVAV

AVAV

AV

AV

AVAV

AV

AV

AVAV

AV

AV

AV

AV

AVAV

AVAV

AV

AV

AV

AV

AV

AV

AV

AV

AV

AV

AV

TUTU

TUTU

TU

TU

TUTU

TUTU

TU

TU

TU

TU

TU

TU

TU

TU

SYLICER

ANT_SHORT_L

X_SW_5R8VX_SW_5R8V

IR

IR

KEY3

KEY1KEY2

STOPCH_UP RECPLAY

GND

GNDGND

GND

GND

GND

GND

GND

XSW_5VKEY1(OPEN/CLOSE)

CH_DOWN

F+

F+F+

F-

F- F-

Vin

-VP

or

or

oror

or

or

oror

or

or

or

or

or

NP NPNCNC

NCNC NC

P2 P1

P4P5 1GA

1GA

1GA

P3

[34]GR9

GR5

GR6

GR3

GR4

GR11

GR12

GR8

GR10

GR7

PSAV

E_H

P15

7G P14

6GP16

SG4

SG5

CLK

STB

K1DOUT

DIN

[12]VSS

SG1

VDD

K2

SG3

SG2

OSC

OSC

[23]SG10

SG11

P11

SG12

SG7

3GP8P9 P6 2GP7P10

4G

SG8

SG9

SG6

SG15

SG14

SG16

VEE

P12

5GP13

SG13

1GB

1GB

[44]VSS[43]VDD

AVIO

_PON

_L

AVIO_PON_LKEY2(REC)

(to FLONT R)

GR1

ANT_

PON_

L

SP_P

SAVE

_L_D

L

GR2

DR12

V

DR12V

DR12VDR12V

DR5V

DR5VDR5V

(TO

HDD)

DR_GND

DR_GND

P_SAVE_L

X_SW12VX_SW12V

X_SW12VX_SW12V

2010/12/31

[UPA1914-TE]

[UPA1914-TE]

S

S

S

S

TIMER5VBACK5V

FL_TXDFL_CLKFLCS

DR_P_ON_H

SP_PSAVE_L

DI_P_ON_H

ANT_PON_H

X_SW_12VX_SW_12VX_SW_12VX_SW_12V

M

IIC_CLKIIC_DATA

CSYNCVSYNC

SP_PSAVE_L_LD

G_I

Documents

Panasonic Dmr-ex83 Ex773 Service manual