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Panasonic DMR-EH50EB Service Manual
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Panasonic DMR-EH50EB Service Manual

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ORDER NO.DSD0503040C2
DVD Video Recorder
DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG
Vol.1
Colour
(K).......................Black Type
(S).......................Silver Type
SPECIFICATIONS
1

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Summary of Contents for Panasonic DMR-EH50EB

  • Page 1 ORDER NO.DSD0503040C2 DVD Video Recorder DMR-EH50EB / DMR-EH50EG / DMR-EH50EP / DMR-EH52EG Vol.1 Colour (K).......Black Type (S).......Silver Type SPECIFICATIONS...
  • Page 4 2005 Matsushita Electric Industrial CO., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. 1. Safety precautions 1.1. General guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.
  • Page 5 When the exposed metallic part has a return path to the chassis, the reading should be between 1M and 5.2M . / When the exposed metal does not have a return path to the chassis, the reading must be . Figure 1 1.1.2.
  • Page 6 components. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD). 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body 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.
  • Page 7 an ES device). 3. Precaution of Laser Diode 4. Handling the Lead-free Solder 4.1. About lead free solder (PbF) Distinction of PbF P.C.B.: P.C.B.s (manufactured) using lead free solder will have a PbF stamp on the P.C.B. Caution: - Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher.
  • Page 8 - When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the soldering points with the Pb free solder until it melts enough. 5. Each Button 6. New Feature 6.1.
  • Page 9 7. Taking out the Disc from RAM-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button 7.1. Forcible Disc Eject 7.1.1. When the power can be turned off. 1. Turn off the power and press [STOP] [CH UP] keys on the front panel simultaneously for 5 seconds.
  • Page 10 7.2. When the Forcible Disc Eject can not be done. 1. Turn off the power and pull out AC cord. 2. Remove the Top Case. 3. Remove the Front Panel. 4. Remove 4 screws and Upper Base Unit from DVD-RAM Drive. 5.
  • Page 11 8. Service Explorer Confirm “RAM-Drive Last Error” in Service Mode Execute Service Mode 1. Press [REC], [CH UP] and [OPEN/CLOSE] simultaneously for 5 seconds when P-off. FL Display: *After finishing display “(7). Factor of Drive Error occurring”, press [0] [2] ~[1] [9] keys of the Remote Controller so that 19 memories can be displayed as maximum.
  • Page 12 (5) Error occurring Disc type is displayed for 5 seconds. (6) Disc Maker's ID is displayed for 5 seconds. Example of Disc Maker's ID: DVD-R Disc FL Display (Disc Disc Maker Country Maker's ID) Panasonic Japan Pioneer Japan Mitsubishi Chemical Japan Corporation Japan...
  • Page 13 ACER Acer Taiwan VIVASTAR VIVASTAR Switzerland LG Electronics Korea DVD-RAM Disc FL Display (Disc Disc Maker Country Maker's ID) Panasonic MATSUSHITA Panasonic Japan Maxell Japan PRODISC Prodisc Taiwan OPTDISC OPTDISC Taiwan Taiwan *Since an display is arbitrarily set up by the disk producer side, the above-mentioned display may be changed.
  • Page 14 9. Self-Diagnosis and Special Mode Setting 9.1. Self-Diagnosis Functions Self-Diagnosis Function provides information for errors to service personnel by “Self-Diagnosis Display” when any error has occurred. 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.
  • Page 15 Error Diagnosis contents Description Monitor Automatic FL Code Display No error information Initial setting for error code in No display No display memory (Error code Initialization is possible with error code initialization and main unit initialization.) Drive hardware error When drive unit error is detected, No display No display the event is saved in memory.
  • Page 16 Error Diagnosis contents Description Monitor Automatic FL Code Display Unformatted disc error You have inserted an UNFORMAT unformatted DVD-RAM or DVD- RW that is unformatted or recorded on other equipment. Unit is in termination Unit is in termination process No display PLEASE process now.
  • Page 17 Item FL display Key operation Mode name Description Front Key Forced disc eject Removing a disc that cannot be The display before When the power ejected. execution leaves. press [STOP] and keys simultaneously The tray will open and unit will seconds.
  • Page 18 Item FL display Key operation Mode name Description Front Key Aging Perform sequence of modes as * Display following the then When the power Aging Description shown below mode. press [STOP], [POWER] continually. and [OPEN/CLOSE] simultaneously seconds and less seconds. NOTE1: If Unit has not turned Aging mode by...
  • Page 19 Item FL display Key operation Mode name Description Front Key Demonstration Ejection of the disc is prohibited. *When lock the tray. When the power lock/unlock press [STOP] and The lock setting is effective until [POWER] keys unlocking the tray and not simultaneously released by “Main unit seconds.
  • Page 20 Item FL display Key operation Mode name Description (Remote controller Release Items Item of Service Mode executing Press [0] [0] or [ is cancelled. service mode. Error Code Last Error Code of U/H/F held by Press [0] [1] in service Display Timer is displayed on FL.
  • Page 21 Item FL display Key operation Mode name Description (Remote controller RTSC Return in AV1 input signal is encoded (XP), Initial mode: EE2/ Interlace Press [1] [3] in service decoded (XP) and output / XP/ Audio 48kHz mode. decoded signal to external (A &...
  • Page 22 Item FL display Key operation Mode name Description (Remote controller HDD READ Perform a complete read When the HDD is OK Press [3] [1] in the inspection inspection of the HDD. mode. *When canceling checking mode executing, do “forced If the HDD is defective power-off”.
  • Page 23 Item FL display Key operation Mode name Description (Remote controller RAM Drive Last RAM Drive error code display. 1. Error Number is Press [4] [2] in service Error displayed for 5 seconds. mode. *For details about the drive error code, refer to the Service Manual When “INFO**** for the specific RAM Drive.
  • Page 24 Item FL display Key operation Mode name Description (Remote controller Delete the Last Delete the Last Drive Error Press [9] [6] in service Drive Error information stored on the DVD mode. RAM-Drive. Turn on all FL/ All segments of FL and all LEDs All segments are turned Press [5] [1] in service LEDs...
  • Page 25 Item FL display Key operation Mode name Description (Remote controller Display the Error Display the Error History stored Display reason of error for Press [6] [5] in service History on the unit. 5 seconds. mode. Then press [0] [1] the past 19 error are displayed.
  • Page 26 Item FL display Key operation Mode name Description (Remote controller AV4(V) / Set input to AV4 (V) and set Press [8] [0] in service AV1(RGB) I/O output to AV1 (RGB) for I/O mode. Setting checking AV2(Y/C) / AV1(V) I Set input to AV2 (Y/C) and set Press [8] [1] in service /O Setting output to AV1 (V) for I/O checking...
  • Page 27 Item FL display Key operation Mode name Description (Remote controller Initialize Service Last Drive Error, Error history Press [9] [9] in service and Error Codes stored on the mode. unit are initialized to factory setting. Finishing service Release Service Mode. Display in STOP (E-E) Press power button mode...
  • Page 28 10.3. Top Case 1. Remove the 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 the direction of the arrows.
  • Page 29 respectively.) 10.5. SD Card P.C.B. 1. Remove 2 Screws (A) to remove SD Card P.C.B. 10.6. Digital P.C.B. 1. Remove 2FFCs and 2 Screws (A). 2. Lift up Digital P.C.B. slightly so to disconnect Connector to remove Digital P.C.B.
  • Page 30 CAUTION: When replacing Digital P.C.B., pay attention as below. 10.7. DVD-RAM Drive 1. Remove 3 Screws (A) to remove DVD-RAM Drive. 2. Lift up DVD-RAM Drive slightly and remove FFC and remove Cable between DVD-RAM Drive and Main P.C.B.
  • Page 31 10.8. HDD 1. Remove ATAPI Connector and HDD Power Connector. 2. Remove 4 Screws (A) to remove HDD Angle with HDD.
  • Page 32 3. Put HDD with HDD Angle up and down inversely so as not to give a shock to HDD. 4. Remove 4 screws to remove HDD.
  • Page 33 Handling of HDD The following precautions should be taken when handling HDD. 1. Never give an impact to HDD. (Even a drop from 1cm height can be a cause of HDD failure. 2. When placing HDD on a workbench, provide a mat on a bench for shock absorption and anti-static purposes.
  • Page 34 2. At first disconnect the connector on one side as shown below, and pull out LED P.C.B. 10.10. Power P.C.B. 1. Remove Screw (A). 2. Remove 3 Screws (B) and disconnect Connector (A) and HDD Power Connector. 3. Unlock Power P.C.B. from a Flange to remove Power P.C.B.
  • Page 35 10.11. Rear Panel 1. Disconnect Fan Connector. 2. Remove 7 Screws (A) and Screw (B). 3. Unlock 2 Locking Tabs (A) to remove Rear Panel.
  • Page 36 10.11.1. Fan Motor 1. Disconnect Fan Connector and remove 2 Screws (C). 2. Push and unlock 2 locking Tabs (A) to remove Fan Motor. 10.12. Front (L) P.C.B. 1. Remove a Screw (A) to remove Front (L) P.C.B. 10.13. Main P.C.B. 1.
  • Page 37 3. Remove Power P.C.B. Angle, Digital P.C.B. Angle and SD Card P.C.B. Angle and disconnect Connector (A) to remove Main P.C.B. 10.14. Tuner P.C.B. and Nicam Decoder P.C.B. 1. Pull out the Tuner P.C.B. in the direction of the arrow. 2.
  • Page 38 Part Number Description Compatibility RFKZ0125 Extension FFC (Digital P.C.B. - DVD-RAM Drive / 40 Pin) Same as E50/ E55 series RFKZ0126 Extension Cable (MainP.C.B. - DVD-RAM Drive/ 4 Pin) Same as E30/HS2 series RFKZ0216 Extension Cable (MainP.C.B. - Power P.C.B. / 23 Pin) Same as E55 series RFKZ0260 Extension Cable (MainP.C.B.
  • Page 39 12.3. Checking and Repairing of Main P.C.B.
  • Page 40 12.4. Checking and Repairing of DVD-RAM Drive...
  • Page 41 12.5. Checking and Repairing of HDD...
  • Page 42 13. Caution after replacing parts 13.1. After replacing the RAM Drive with new one 13.2. When the unit does not operate normally after replacing the Timer Microprocessor or Main P.C.B. When the unit does not operate normally after replacing the Timer Microprocessor or Main P.C.B.
  • Page 43 Turn on the power, and confirm items pointed Items pointed out should reappear. out. Insert RAM disc. The Panasonic RAM disc should be recognized. Enter the EE (TU IN / AV IN - AV OUT) mode. No abnormality should be seen in the picture, sound or operation.
  • Page 44 Item Contents Check Item Contents Block noise Distorted sound Crosscut noise Noise (static, background noise, etc.) Picture Sound Dot noise The sound level is too low. Picture disruption The sound level is too high. Not bright enough The sound level changes. Too bright Flickering color Color fading...
  • Page 45 INITIAL/LOGO ABBREVIATIONS A0~UP ADDRESS ACLK AUDIO CLOCK AD0~UP ADDRESS BUS ADATA AUDIO PES PACKET DATA ADDRESS LATCH ENABLE AMUTE AUDIO MUTE AREQ AUDIO PES PACKET REQUEST AUDIO RF SERVO AMP INVERTED INPUT SERVO AMP OUTPUT ASYNC AUDIO WORD DISTINCTION SYNC BIT CLOCK (PCM) BCKIN BIT CLOCK INPUT...
  • Page 46 INITIAL/LOGO ABBREVIATIONS DACCK D/A CONVERTER CLOCK DEEMP DEEMPHASIS BIT ON/OFF DEMPH DEEMPHASIS SWITCHING DIG0~UP FL DIGIT OUTPUT DATA INPUT DMSRCK DM SERIAL DATA READ CLOCK DMUTE DIGITAL MUTE CONTROL DROP OUT DOUT0~UP DATA OUTPUT DATA SLICE RF (BIAS) DROP OUT SIGNAL DRPOUT DATA REQUEST DREQ...
  • Page 47 INITIAL/LOGO ABBREVIATIONS IECOUT IEC958 FORMAT DATA OUTPUT IPFRAG INTERPOLATION FLAG IREF I (CURRENT) REFERENCE ISEL INTERFACE MODE SELECT LDON LASER DIODE CONTROL LASER POWER CONTROL LRCK L CH/R CH DISTINCTION CLOCK MA0~UP MEMORY ADDRESS MEMORY CLOCK MCKI MEMORY CLOCK INPUT MCLK MEMORY SERIAL COMMAND CLOCK...
  • Page 48 INITIAL/LOGO ABBREVIATIONS READ ENABLE RFENV RF ENVELOPE RF PHASE DIFFERENCE OUTPUT (CD-ROM) REGISTER SELECT RSEL RF POLARITY SELECT RESET RESERVE SBI0, 1 SERIAL DATA INPUT SBO0 SERIAL DATA OUTPUT SBT0, 1 SERIAL CLOCK SERIAL DATA CLOCK SCKR AUDIO SERIAL CLOCK RECEIVER SERIAL CLOCK SCLK...
  • Page 49 SUB CODE Q DATA SYSCLK SYSTEM CLOCK INITIAL/LOGO ABBREVIATIONS TRACKING ERROR TIBAL BALANCE CONTROL BALANCE OUTPUT 1 BALANCE INPUT BALANCE INPUT BALANCE OUTPUT 2 TPSN OP AMP INPUT TPSO OP AMP OUTPUT TPSP OP AMP INVERTED INPUT TRCRS TRACK CROSS SIGNAL TRON TRACKING ON TRSON...
  • Page 50 INITIAL/LOGO ABBREVIATIONS X' TAL XALE X ADDRESS LATCH ENABLE XAREQ X AUDIO DATA REQUEST XCDROM X CD ROM CHIP SELECT X CHIP SELECT XCSYNC X COMPOSITE SYNC X DATA STROBE XHSYNCO X HORIZONTAL SYNC OUTPUT XHINT XH INTERRUPT REQUEST X' TAL OSCILLATOR INPUT XINT X INTERRUPT X MEMORY WRITE ENABLE...
  • Page 51 18.6. Tuner Pack Schematic Diagram 18.7. Nicam Decoder Schematic Diagram 18.8. SD Card Schematic Diagram 18.9. LED Schematic Diagram 19. Print Circuit Board 19.1. Power P.C.B. 19.2. Main P.C.B. 19.2.1. Main P.C.B. (1/4 Section) 19.2.2. Main P.C.B. (2/4 Section) 19.2.3. Main P.C.B. (3/4 Section) 19.2.4.
  • Page 52 20.2. Packing & Accessories Section...
  • Page 53 21. Replacement Parts List Notes: *Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc. are used. When replacing any of components, be sure to use only manufactures specified parts shown in the parts list.
  • Page 54 Spanish/French, (IC): German, (ID): Swedish/Denish, (IE): English, (IF): Italian/Dutch, (IG): English] *All parts except parts mentioned [SPC] in the Remarks column are supplied from PAVCG. *Parts mentioned [SPC] are supplied from PAVC Ref. No. Part No. Part Name & Description Remarks CASING/ACCESSORY/PACKING VEP01961A...
  • Page 55 Ref. No. Part No. Part Name & Description Remarks RYP1269C-S FRONT PANEL ASS’Y (EH50EG-S) RYP1269D-S FRONT PANEL ASS’Y (EB) RYP1269G-S FRONT PANEL ASS’Y (EP) RYP1269T-S FRONT PANEL ASS’Y (EH52EG-S) RYP1269C-K FRONT PANEL ASS’Y (EH50EG-K) RYP1269T-K FRONT PANEL ASS’Y (EH52EG-K) 30-1 RGL0678-Q PANEL LIGHT 30-2...
  • Page 56 Ref. No. Part No. Part Name & Description Remarks RPG7567 PACKING CASE (EP) RPG7648 PACKING CASE (EH52EG-K) RPG7647 PACKING CASE (EH52EG-S) RPN1798 CUSHION RPFD0004 MIRAMAT BAG VEP79107J/H/N MAIN P.C.B. C1501 F1H1E223A029 25V 0.022U C1503 F2A1A2210063 10V 220U C1504 F2A1E1010067 25V 100U C1505 F1J0J106A014 6.3V 10U...
  • Page 57 Ref. No. Part No. Part Name & Description Remarks C3057 F1H1H222A219 50V 2200P C3058 ECJ1VC1H471J 50V 470P C3059 F1H1H222A219 50V 2200P C3060 ECJ1VC1H471J 50V 470P C3064 F1H1C104A042 16V 0.1U C3070,71 F1H1H222A219 50V 2200P C3072 F1H1C104A042 16V 0.1U C3910,11 F2A1V100A534 35V 10U C3914,15 F2A1H100A236 50V 10U...
  • Page 58 Ref. No. Part No. Part Name & Description Remarks C7403 F2A0J470A599 6.3V 47U C7404 F1H0J1050012 6.3V 1U C7405 F1H1C104A042 16V 0.1U C7406 F1H1A105A028 10V 1U C7407,08 F1H1C104A042 16V 0.1U C7416 F2A1E4700048 25V 47U C7427 F1H1H222A219 50V 2200P C7439 F1H1C104A042 16V 0.1U C7447,48 F1H0J1050012 6.3V 1U...
  • Page 59 Ref. No. Part No. Part Name & Description Remarks C7590 F1H1C104A008 16V 0.1U C7592 F1H1A105A004 10V 1U D1501 MA2C165001VT DIODE D3901 MA2C165001VT DIODE D4005,06 MA3Z142D0LG DIODE D7403 MA2C165001VT DIODE D7501 B0BA03600021 DIODE D7502 B0ACCK000005 DIODE D7504 MAZ4300NLF DIODE D7505,06 B0AADM000003 DIODE D7507 B0AAGM000007...
  • Page 60 K7401 D0YBR0000002 CHIP RESISTOR (EB)
  • Page 61 Ref. No. Part No. Part Name & Description Remarks K7405,06 D0YBR0000002 CHIP RESISTOR (EB,EP) K7503,04 D0YBR0000002 CHIP RESISTOR K7506,07 D0YBR0000002 CHIP RESISTOR K7512 D0YBR0000002 CHIP RESISTOR L1501 G0A220GA0026 COIL 22UH L1504 G0A100HA0023 COIL 10UH L4901 G0C220KA0065 COIL 22UH L7403 G0C2R2JA0019 COIL 2.2UH L7404 G0A220GA0026...
  • Page 62 Ref. No. Part No. Part Name & Description Remarks QR3914 UNR521300L TRANSISTOR (EB,EG) QR4002-05 UNR521100L TRANSISTOR QR7401 UNR521300L TRANSISTOR QR7403,04 UNR521500L TRANSISTOR QR7501 UNR521300L TRANSISTOR (EG) QR7503 UNR521400L TRANSISTOR (EB,EG) QR7506 UNR521200L TRANSISTOR QR7507 UNR521000L TRANSISTOR QR7508 UNR521400L TRANSISTOR R1503 D0GB332JA002 1/10W 3.3K R1504...
  • Page 63 Ref. No. Part No. Part Name & Description Remarks R4059 D0YBR0000002 CHIP RESISTOR (EB) R4066,67 D0HB103ZA002 1/10W 10K R4071 D0GB473JA002 1/10W 47K R4074 D0GB473JA002 1/10W 47K R4076 D0GB821JA002 1/10W 820 R4077 D0GB101JA002 1/10W 100 R4078,79 D0GB272JA002 1/10W 2.7K R4080 D0GB101JA002 1/10W 100 R4081 D0GB821JA002...
  • Page 64 Ref. No. Part No. Part Name & Description Remarks R7567 D0GB101JA002 1/10W 100 (EB,EG) R7568 D0GB101JA002 1/10W 100 R7570 D0GB392JA002 1/10W 3.9K R7571 D0GB101JA002 1/10W 100 R7574 D0GB223JA002 1/10W 22K R7575 D0GB101JA002 1/10W 100 R7576 D0GB102JA002 1/10W 1K R7577,78 D0GB103JA002 1/10W 10K R7579 D0GB223JA002...
  • Page 65 Ref. No. Part No. Part Name & Description Remarks S7506 K0F111B00044 SWITCH,STOP S7507 K0F111B00044 SWITCH,PLAY S7508 K0F111B00044 SWITCH,REC T7501 G4D1C0000003 TRANSFORMER W701 D0YBR0000002 CHIP RESISTOR W702-05 D0YDR0000006 CHIP RESISTOR W706-09 D0YBR0000002 CHIP RESISTOR W711-28 D0YBR0000002 CHIP RESISTOR W729 D0YDR0000006 CHIP RESISTOR W730,31 D0YBR0000002 CHIP RESISTOR...
  • Page 66 R7304 D0GB101JA002 1/10W 100...
  • Page 67 Ref. No. Part No. Part Name & Description Remarks R7307 D0YBR0000002 CHIP RESISTOR R7309 D0GB103JA002 1/10W 10K R7311 D0GB221JA002 1/10W 220 R7312,13 D1BB2200A010 RESISTOR R7314,15 D0YBR0000002 CHIP RESISTOR R7317 D0YBR0000002 CHIP RESISTOR R7319 D0YBR0000002 CHIP RESISTOR R7322 D0YBR0000002 CHIP RESISTOR R7324,25 D0GB101JA002 1/10W 100...
  • Page 68 Ref. No. Part No. Part Name & Description Remarks R7812 ERJ6GEYJ681V 1/8W 680 (EP) R7813,14 D0GB271JA002 1/10W 270 (EB) R7815,16 D0GB471JA002 1/10W 470 R7817 ERG2SJ471E 2W 470 R7818 D0GB221JA002 1/10W 220 (EP) R7820 D0GB102JA002 1/10W 1K (EP) R7823 D0GB562JA002 1/10W 5.6K (EB) R7844 ERJ6GEYJ681V...
  • Page 69 Ref. No. Part No. Part Name & Description Remarks C1201 ECJ2VB1E473K 25V 0.047U C1270,71 F2A1C182A621 16V 1800U C1272 F2A1C102A625 16V 1000U C1273 EEUFM1C121B 16V 120U C1274 F1J1E104A081 25V 0.1U C1400 EEUFM1E221B 25V 220U C1401 F1J1C1050030 16V 1U C1402 ECJ2VB1E103K 25V 0.01U C1403 ECJ2VC1H391J 50V 390P...
  • Page 70 Ref. No. Part No. Part Name & Description Remarks IC1501 C0EBJ0000143 IC1601 C0DBAKG00007 IC1701 C0DBAKG00005 IP1401 K5H3022A0013 IC PROTECTOR IP1601 K5H3022A0013 IC PROTECTOR L1120,21 G0B233D00001 COIL L1270 G0A100H00025 COIL 10UH L1400 G0A100HA0023 COIL 10UH L1401 G0A330ZA0041 COIL 33UH L1402 G0A150ZA0041 COIL 15UH L1503 G0A100HA0023...
  • Page 71 Ref. No. Part No. Part Name & Description Remarks R1402 ERJ6RBD821V 1/10W 820 R1404 ERJ6RBD102V 1/10W 1K R1405 ERJ6GEYJ513V 1/8W 51K R1406 D1BFR0270001 R1407 ERJ6RBD272V 1/10W 2.7K R1409 ERJ6RBD472V 1/10W 4.7K R1410 ERJ6RBD151V 1/10W 150 R1411 ERJ6RBD123V 1/10W 12K R1518 ERJ6GEYJ103V 1/8W 10K R1601...
  • Page 72 Ref. No. Part No. Part Name & Description Remarks R7112 D0GB473JA002 1/10W 47K VEP73121C/D SD CARD P.C.B. C6801 F1H1H1030006 50V 0.01U C6802,03 F1J0J106A014 6.3V 10U FL6801 F1H0J1050025 FILTER LB6801 J0JHC0000032 COIL LB6802 J0JHC0000045 COIL P6802 K1KB14A00073 CONNECTOR(14P) P6803 K1NA09E00027 CONNECTOR(9P) R6801 D0GB101JA002 1/10W 100...
  • Page 73 X SW+12.4V (FAN MOTOR DRIVE) FAN PWM OUT P7101 P7507 Q7511 88 SD SEL LED (FAN MOTOR DRIVE) SD SEL Q7101 D7101 (SD SEL LED DRIVE) (GREEN) LED P.C.B. FAN MOTOR P7504 P7504 DMR-EH50EB/EG/EP,EH52EG FAN LOCK H Timer Block Diagram...
  • Page 76 Nicam Decoder P.C.B. DMR-EH50EB/EG/EP,EH52EG Nicam Decoder P.C.B. (VEP07A51A)
  • Page 77 LED P.C.B. Front (L) P.C.B. DMR-EH50EB/EG/EP,EH52EG LED P.C.B. (VEP70116B) Front (L) P.C.B. (VEP70115A)
  • Page 78 (EG) (EG) (EG) (EB/EP) (FRONT) (REAR) Location Map DMR-EH50EB/EG/EP,EH52EG Main P.C.B. VEP79107J:EH50EB,VEP79107H:EH50EG,EH52EG VEP79107N:EH50EP (1/4 Section)
  • Page 79 (FRONT) (REAR) Location Map DMR-EH50EB/EG/EP,EH52EG Main P.C.B. VEP79107J:EH50EB,VEP79107H:EH50EG,EH52EG VEP79107N:EH50EP (2/4 Section)
  • Page 80 Main P.C.B. (EB) (FRONT) (REAR) Location Map (EB/EG) DMR-EH50EB/EG/EP,EH52EG (EG) Main P.C.B. VEP79107J:EH50EB,VEP79107H:EH50EG,EH52EG VEP79107N:EH50EP (3/4 Section)
  • Page 81 (EB) (EB) (EP) (EB/EG) (EB) (EG/EP) (EB) (FRONT) (REAR) Location Map DMR-EH50EB/EG/EP,EH52EG Main P.C.B. VEP79107J:EH50EB,VEP79107H:EH50EG,EH52EG VEP79107N:EH50EP (4/4 Section)
  • Page 82 Main P.C.B. Integrated Circuit TL7511 LB7415 C3035 C7401 Resistor R4011 R7544 R7644 IC1501 TL7512 LB7501 C3038 C7402 R1503 R4013 R7548 R7648 IC1502 TL7513 LB7507 C3039 C7403 R1504 R4014 R7549 R7649 IC1504 TL7514 LB7508 C3057 C7404 R1505 R4016 R7550 R7651 IC1505 TL7515 LB7509 C3058...
  • Page 83 IC Protector Fuse QR1302 C1400 C1605 R1200 R1601 QR1303 IP1401 F1101 C1401 C1606 R1201 R1602 QR1304 IP1601 Capacitor C1402 C1607 R1205 R1603 Transformer QR1800 C1120 C1403 C1608 R1206 R1604 QR1801 T1150 C1121 C1404 C1701 R1207 R1605 DMR-EH50EB/EG/EP,EH52EG Power P.C.B. (VEP01961A)
  • Page 84 SD Card P.C.B. DMR-EH50EB/EG/EP,EH52EG DMR-EH50EB/EG/EP,EH52EG (Foil Side) (Component Side) SD Card P.C.B. (Component Side) SD Card P.C.B. (Foil Side) VEP73121C:Black Type VEP73121C:Black Type VEP73121D:Silver Type VEP73121D:Silver Type...
  • Page 85 Tuner P.C.B. (EP) (EB) (EG/EP) (EP) (EB/EG) (EB) (EB) (EB) (EP) (EG/EP) (EG) (EB) (EB) DMR-EH50EB/EG/EP,EH52EG Tuner P.C.B. VEP07A77A:EH50EG,EH52EG VEP07A77B:EH50EB VEP07A77C:EH50EP...
  • Page 86 150K QR3914 (XTMUTE) (XDMUTE) M:Main Net Section(Page: UNR521300L (P50 THROU :ON) AI:A/V I/O Section(Page: Q3910 Q3909 Q3908 Q3907 2SD132800L 2SD132800L 2SD132800L 2SD132800L T:Timer Section(Page: QR4003 UNR521100L XDMUTE (XDMUTE) K3901 0 P50 THROUGH EH50EP DMR-EH50EB/EG/EP,EH52EG A/V I/O Section(Main P.C.B.(2/3)) Schematic Diagram(AI)
  • Page 87 NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERING. (Main P.C.B.(2/3)) THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST, AND MAY BE DMR-EH50EB/EG/EP,EH52EG A/V I/O Section (Main P.C.B.(2/3)) Schematic Diagram(AI) SLIGHTLY DIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED. Schematic Diagram(AI)
  • Page 88 P.C.B.Name Circuit Name Ref.No. DAT3 Main Net Ref.No.1500,7400 SERIES Audio Net Ref.No.4400,9000 SERIES Main Digital A/V I/O Ref.No.3000,3900,4000,4900 SERIES AVENC/RTSC/AVDEC/MAIN CPU-1 Ref.No.3200,3300 SERIES SBI0 P.C.B. P.C.B. Timer Ref.No.7500,7600 SERIES AVENC/RTSC/AVDEC/MAIN CPU-2 Ref.No.6000,6100,6200 SERIES SD CARD P.C.B. DMR-EH50EB/EG/EP,EH52EG Interconnection Schematic Diagram...
  • Page 89 (SD SEL LED DRIVE) (DVD SEL LED DRIVE) (HDD SEL LED DRIVE) R7108 R7110 R7112 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. DMR-EH50EB/EG/EP,EH52EG LED Schematic Diagram...
  • Page 90 R1515 K9ZZ00001279 X SW 3.3V ZJ7407 K9ZZ00001279 ANA+3.3V ANA+3.3V D+3.3V D+3.3V DMR-EH50EB/EG/EP,EH52EG IMPORTANT SAFETY NOTICE: COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS Main Net Section(Main P.C.B.(1/3)) FOR SAFETY.WHEN REPLACING ANY OF THESE COMPONENTS.ONLY THE SAME TYPE. Schematic Diagram(M)
  • Page 91 WIDE 0.022 QR7404 ANA+3.3V R1508 UNR521500L D+3.3V DMR-EH50EB/EG/EP,EH52EG DMR-EH50EB/EG/EP,EH52EG C1506 10V47 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR Main Net Section(Main P.C.B.(1/3)) Main Net Section(Main P.C.B.(1/3)) ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 92 R7319 TL7301 R7314 C7313 C7312 LB7302 16V10 16V10 J0JCC0000124 C7318 16V10 R7315 C7314 DMR-EH50EB/EG/EP,EH52EG NOTE: Nicam Decoder DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM Schematic Diagram FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 93 THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST,AND MAY BE SLIGHTLY DIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED. COLD IMPORTANT SAFETY NOTICE: COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY.WHEN REPLACING ANY OF THESE COMPONENTS.ONLY THE SAME TYPE. DMR-EH50EB/EG/EP,EH52EG Power Supply Schematic Diagram...
  • Page 94 DR5V VOUT C1513 C1514 QR1800 C1705 10V470 0.01 UNR211300L 120P (SWITCHING) R1803 C1703 IC1501 R1702 Vref QR1801 C0EBJ0000143 R1802 UNR221300L (HDD PFAIL OUT) 4700 (SWITCHING) C1701 C1702 C1704 25V220 0.01 DMR-EH50EB/EG/EP,EH52EG DMR-EH50EB/EG/EP,EH52EG Power Supply Power Supply Schematic Diagram Schematic Diagram...
  • Page 95 C6801 0.01 XSORX TL6803 RX6802 RX6801 12KX4 22X4 CKF12 CKF13 R6802 22 R6803 22 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. DMR-EH50EB/EG/EP,EH52EG SD Card Schematic Diagram...
  • Page 96 R7574 22K FAN MOTOR C7533 6V47 C7587 1 C7547 1 R7627 30K R7624 10K LB7509 J0JCC0000060 X SW+12.4V C7590 R7625 FAN GND R7626 820 R7577 10K M:Main Net Section(Page: AI:A/V I/O Section(Page: DMR-EH50EB/EG/EP,EH52EG T:Timer Section(Page: Timer Section(Main P.C.B.(3/3)) Schematic Diagram(T)
  • Page 97 (POWER SAVE :ON) (SW. :OFF) D7504 MAZ4300NLF UNREG 38V DMR-EH50EB/EG/EP,EH52EG DMR-EH50EB/EG/EP,EH52EG IMPORTANT SAFETY NOTICE: NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR Timer Section(Main P.C.B.(3/3)) COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 98 B1GBCFJA0002 (AUDIO MUTE) EH50EB/EG,EH52EG K7809 0 DMR-EH50EB/EG/EP,EH52EG NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERING. Tuner Pack THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST, AND MAY BE SLIGHTLY DIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
  • Page 99 18 Schematic Diagram 18.1. Interconnection Schematic Diagram POWER P7001 P7506 P1502 DR12V DR12V POWER SW ON POWER SW ON DRGND DR5V FRONT(L) P.C.B. P7402 P1101 XINTP P1102 P1501 PP7401 PS7801 SCLK UARTM2P X SW 5.8V X SW 5.8V BOOSTER5V BOOSTER 5V XINTM X SW 5.8V X SW 5.8V...
  • Page 100 D1.5V D 1.5V 3.3V CPNCIN DM CPNCIN DM SBO0 D1.5V D 1.5V DAT2 DAT0 XDIAG DAT1 P.C.B.Name Circuit Name Ref.No. DAT3 Audio Net Ref.No.4400,9000 SERIES Digital AVENC/RTSC/AVDEC/MAIN CPU-1 Ref.No.3200,3300 SERIES SBI0 P.C.B. AVENC/RTSC/AVDEC/MAIN CPU-2 Ref.No.6000,6100,6200 SERIES DMR-EH50EB/EG/EP,EH52EG Interconnection Schematic Diagram...
  • Page 101 18.2. Power Supply Schematic Diagram ZA1103 ZA1104 EYF52BCY EYF52BCY P1101 D1140 K2AA2H000007 L1120 L1121 B0EDKT000009 F1101 G0B233D00001 G0B233D00001 (RECTIFIER) AC INLET 250V T2AL VA1110 C1121 ERZVA5V471 0.068 C1122 C1123 1000P 1000P IC1150 C0DAC (SWITCH ZA1150: ZA1151: Collector C1151 1000P D1157 B0HADV000001 R1158 ZA1105...
  • Page 102 R1151 6800 C1152 Q1200 IC1200 330P R1208 C0DAEMB00003 B3PBA0000237 2200 (FEED BACK) (ERROR VOLTAGE DET.) R1209 R1157 R1154 D1152 001VT 9100 MAZ4100NMF R1210 C1200 R1201 R1200 8200 1200 C1153 R1205 R1206 2200P 220K 2400 COLD DMR-EH50EB/EG/EP,EH52EG Power Supply Schematic Diagram...
  • Page 103 J0JHC0000048 UNR221300L (DR P ON :ON) R1270 R1271 4700 4700 D1701 B0JCPE000015 QR1304 R1800 D1800 C1274 R1801 C1800 MA2J11100L UNR221300L 100K 25V47 (DR P ON :ON) QR1800 UNR211300L (SWITCHING) R1803 QR1801 R1802 UNR221300L 4700 (SWITCHING) DMR-EH50EB/EG/EP,EH52EG Power Supply Schematic Diagram...
  • Page 104 C0DBAKG00005 TO HDD (REG.XSW+3.8V) (DC-DC CONVERTER) R1518 10K P1103 DR12V DR GND DR GND DR5V VOUT C1513 C1514 C1705 10V470 0.01 120P C1703 IC1501 R1702 Vref C0EBJ0000143 (HDD PFAIL OUT) C1701 C1702 C1704 25V220 0.01 DMR-EH50EB/EG/EP,EH52EG Power Supply Schematic Diagram...
  • Page 105 18.3. Main Net Section (Main P.C.B. (1/3)) Schematic Diagram (M) TO P1102 POWER P.C.B. TO P9001 P1501 DIGITAL P.C.B. (Audio Net Section) P7402 X SW 5.8V X SW 5.8V X SW 12.4V X SW 12.4V XINTP XINTP SCLK G SCLK A UARTM2P G UARTM2P A XINTM...
  • Page 106 :ON) R7445 6800 C7401 16V470 REG.PS+11.6V X SW+3.8V C1520 CONT BIAS TERMINAL DRIVER SHUTDOWN IC1505 C0CBCBD00018 ection(Page: CURRENT (REG.X SW+3.3V) LIMITTER ction(Page: REFERENCE on(Page: Vout C1522 330P C1521 R1515 ANA+3.3V ANA+3.3V D+3.3V D+3.3V DMR-EH50EB/EG/EP,EH52EG Main Net Section(Main P.C.B.(1/3)) Schematic Diagram(M)
  • Page 107 < JC REG.+5V > REG.PS+11.6V X SW+3.8V C1511 R1505 CONT BIAS TERMINAL DRIVER SHUTDOWN IC1502 C0CBCBD00018 CURRENT (REG.ANA+3.3V) LIMITTER REFERENCE Vout Vout Vadj. C1517 470P C1515 10V47 R1507 1500 C1512 ANA+3.3V R1508 D+3.3V DMR-EH50EB/EG/EP,EH52EG C1506 10V47 Main Net Section(Main P.C.B.(1/3)) Schematic Diagram(M)
  • Page 108 AV2 PB R1507 1500 C1501 WIDE 0.022 QR7404 R1508 UNR521500L DMR-EH50EB/EG/EP,EH52EG C1506 10V47 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR Main Net Section(Main P.C.B.(1/3)) ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. Schematic Diagram(M)
  • Page 109 18.4. A/V I/O Section (Main P.C.B. (2/3)) Schematic Diagram (AI) S VIDEO VIDEO AUDIO IN L G AADC L A G AADC R A G CIN DM A G V YIN DM A G SLICER A G IIC CLK A G IIC DATA A V SYNC DET GND GND...
  • Page 110 P50 CONTROL R3995 R3999 R3996 150K 120K R3997 R3998 120K QR3914 150K n Net Section(Page: UNR521300L (P50 THROU :ON) I/O Section(Page: Q3910 Q3909 Q3908 Q3907 2SD132800L 2SD132800L 2SD132800L 2SD132800L r Section(Page: K3901 0 EH50EP DMR-EH50EB/EG/EP,EH52EG A/V I/O Section(Main P.C.B.(2/3)) Schematic Diagram(AI)
  • Page 111 ENC G/Y IN AV1 FB OUT VGND AV1 V IN C3030 50V4.7 ENC B/B-Y IN AV2 FB IN C3031 0.01 REG2.5 AV2 V/Y IN C3013 25V47:EH50EB 10V100:EH50EG/EP, EH52EG C3014 C3034 C3035 0.01 6V100 DMR-EH50EB/EG/EP,EH52EG A/V I/O Section (Main P.C.B.(2/3)) Schematic Diagram...
  • Page 112 BOOSTER+5V LB3002 J0JGC0000020 C3033 C3032 0.01 6V100 DMR-EH50EB/EG/EP,EH52EG A/V I/O Section NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERING. (Main P.C.B.(2/3)) THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST, AND MAY BE ematic Diagram(AI) SLIGHTLY DIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
  • Page 113 18.5. Timer Section (Main P.C.B. (3/3)) Schematic Diagram (T) D7509 B0JDCE000002 X SW 5.2V C7585 6V100 TW7501 5.2V TO P7101 LED P.C.B. P7507 IC7505 IC7506 R7629 6800 C0EBJ0000336 C0EBE0000457 HDD SEL LED R7630 6800 DVD SEL LED (RESET) (RESET) R7631 6800 SD SEL LED OUT VDD GND...
  • Page 114 FAN PWM OUT2 IIC CLK AV2 PB L IIC DATA WIDE H R7652 100 K7504 0 R7628 X SW+12.4V R7576 C7534 0.01 R7563 R7574 22K C7533 6V47 C7547 1 LB7509 J0JCC0000060 X SW+12.4V R7577 10K DMR-EH50EB/EG/EP,EH52EG Timer Section(Main P.C.B.(3/3)) Schematic Diagram(T)
  • Page 115 C7571 R7616 50V22 C7569 R7614 2200P QR7508 Q7510 UNR521400L 2SD1994BR1VT (POWER SAVE :ON) (SW. :OFF) D7504 MAZ4300NLF DMR-EH50EB/EG/EP,EH52EG IMPORTANT SAFETY NOTICE: COMPONENTS IDENTIFIED WITH THE MARK HAVE TH Timer Section(Main P.C.B.(3/3)) Schematic Diagram(T) FOR SAFETY.WHEN REPLACING ANY OF THESE COMPO...
  • Page 116 R7502 C7502 3900 TL7502 100P UNREG 38V DMR-EH50EB/EG/EP,EH52EG NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR Timer Section(Main P.C.B.(3/3)) THE MARK HAVE THE SPECIAL CHARACTERISTICS ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. Schematic Diagram(T)
  • Page 117 18.6. Tuner Pack Schematic Diagram EH50EB EH50EG/EP, EH52EG K7808 R7814 C7828 K7807 R7813 0.01 LB7805 LB7803 J0JHC0000032 J0JHC0 LB7802 J0JHC0000032 EH50EB K7811 C7817 6V47 EH50EB EH50EG L7802 K7810 C7809 0.01 TO PP7401 MAIN P.C.B. (MAIN NET SECTION) PS7801 R7810 BOOSTER 5V RFC AUDIO RFC A MUTE R7809...
  • Page 118 (VIDEO BUFFER) R7844 EH50EB/EG,EH52EG K7809 0 DMR-EH50EB/EG/EP,EH52EG NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERING. Tuner Pack THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST, AND MAY BE SLIGHTLY DIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
  • Page 119 18.7. Nicam Decoder Schematic Diagram C7335 IC7302 C0EAH0000051 TO PK7701 (RESET) MAIN P.C.B. (MAIN NET SEC.) PK7301 TU AUDIO IN LB7303 J0JCC0000080 L7303 1u JC REG.5V C7303 C7305 C7306 C7334 R7304 6V100 6V100 0.01 50V2.2 C7311 100P C7301 R7301 C7302 0 TO PK7702 MAIN P.C.B.
  • Page 120 TL7303 TL7301 R7314 C7313 C7312 16V10 16V10 LB7302 J0JCC0000124 C7318 16V10 R7315 C7314 DMR-EH50EB/EG/EP,EH52EG NOTE: Nicam Decoder DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM Schematic Diagram FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 121 18.8. SD Card Schematic Diagram TO P3201 DIGITAL P.C.B. TL6802 (AVENC/RTSC/AVDEC/ MAIN CPU-1 SECTION) P6802 LB6801 J0JHC0000032 3.3V MSOTX DAT2 R6804 DAT0 XDIAG LB6802 J0JHC0000045 DAT1 R6801 100 DAT3 XSORX TL6803 RX68 12KX CKF12 CKF13...
  • Page 122 R6807 DAT0 DAT1 DAT2 C6801 0.01 RX6802 RX6801 12KX4 22X4 R6802 22 R6803 22 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. DMR-EH50EB/EG/EP,EH52EG SD Card Schematic Diagram...
  • Page 123 18.9. LED Schematic Diagram TO P7507 MAIN P.C.B. (TIMER SECTION) P7101 X SW 5.2V SD SEL LED DVD SEL LED HDD SEL LED R7103 SD SEL D7101 B3ABA0000595 Q7101 2SD0601ARN (SD SEL LED DRIVE) R7108...
  • Page 124 0.01 Q7102 Q7103 2SD0601ARN 2SD0601ARN (DVD SEL LED DRIVE) (HDD SEL LED DRIVE) R7110 R7112 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. DMR-EH50EB/EG/EP,EH52EG LED Schematic Diagram...
  • Page 125 Ref No. Q7102 Q7103 Q7101 MODE PLAY STOP...
  • Page 126 IC1501 IC1502 Ref No. MODE PLAY STOP Ref No. IC1504 IC1505 MODE PLAY STOP IC1510 IC1511 Ref No. MODE PLAY STOP Ref No. IC3001 MODE PLAY STOP IC3001 Ref No. MODE PLAY STOP IC3001 Ref No. MODE 11.6 PLAY 11.6 STOP 11.6 IC3001...
  • Page 127 IC3001 Ref No. MODE PLAY STOP IC4009 IC4011 Ref No. MODE 11.6 PLAY 11.6 STOP 11.6 IC4012 IC7401 Ref No. MODE 11.6 12.3 11.6 PLAY 11.6 12.3 11.6 STOP 11.6 12.3 11.6 IC7402 IC7403 Ref No. MODE PLAY STOP IC7501 Ref No.
  • Page 128 Q4004 Q4006 Q4007 Q4008 Q4009 Ref No. MODE -0.9 -0.1 -0.1 -0.2 -0.2 PLAY -0.9 -0.1 -0.1 -0.2 -0.2 STOP -0.4 -0.1 -0.1 Ref No. Q7401 Q7501 Q7502 Q7503 Q7504 MODE 11.6 PLAY 11.6 STOP 11.6 Q7506 Q7507 Q7508 Q7510 Q7511 Ref No.
  • Page 129 P9001 Ref No. MODE PLAY STOP P9001 Ref No. MODE PLAY STOP P9001 Ref No. MODE PLAY STOP P9001 Ref No. MODE PLAY STOP P9001 Ref No. MODE PLAY STOP...
  • Page 130 Ref No. IC1150 IC1200 MODE 11.6 -1523 PLAY 11.6 -1523 STOP 11.6 -1538 Ref No. IC1401 IC1501 IC1400 MODE 12.4 PLAY 12.4 STOP 12.4 Ref No. IC1601 IC1701 MODE 12.3 12.3 12.4 12.4 PLAY 12.3 12.3 12.4 12.4 STOP 12.3 12.3 12.4 12.4...
  • Page 131 Q7802 Ref No. MODE PLAY STOP QR7806 QR7807 Ref No. MODE -0.6 -0.6 PLAY -0.6 -0.6 STOP -0.5 -0.4...
  • Page 132 T1150-3 STOP T1150-15,18 STOP T1150-7 STOP T1150-5 STOP 30Vp-p (5 sec.div) 30Vp-p (5 sec.div) 8Vp-p (5m sec.div) 560Vp-p (5 sec.div) IC1150-1 STOP IC1150-2 STOP P7402-83 REC/PLAY P7402-51 REC/PLAY 8.0Vp-p (5 sec.div) 0.5Vp-p (5 sec.div) 1.0Vp-p (20 sec.div) 0.7Vp-p (20 sec.div) P7402-59 REC/PLAY P7402-63 REC/PLAY P7402-55 REC/PLAY...
  • Page 133 :REC SIGNAL :PB SIGNAL JK3001 REAR JACK D4005 Q4006 MIX L OUT2 MUTE LINE OUT FROM XTMUTE QR4002-QR4005 TIMER Q4007 IC7501- 63 Q4004 SECTION MIX R OUT2 MUTE MUTE LINE OUT D4006 Q4009 CIRCUIT MUTE FROM XDMUTE DIGITAL Q4008 IC4408- 4 P.C.B.
  • Page 134 (DECODER/EXT) AV2 B Q7802 TUNER BLUE AV2 G PP7401 PS7801 VIDEO CLAMP CLAMP BUFFER AV2 V/Y VIDEO/Y EH50EB/EG,EH52EG 2.3V K7809 AV2 B CLAMP 1.0V PP7401 PS7801 VIDEO AV2 V/Y EH50EB CLAMP TUNER P.C.B. DMR-EH50EB/EG/EP,EH52EG Analog Video Block Diagram AV2 R/G/B...
  • Page 135 CONTROL SW.) DR+12V P1103 QR1302 :ON) DR+5V P1103 Q1200 Q1270 (FEED BACK) (DR+12V OUT) DR+5V P1102 P1501 20,21 DVD-RAM/R DRIVE DR+12V P1102 P1501 16,17 IC1200 (ERROR VOLTAGE DET.) QR1304 :ON) IP1501 X SW+12.4V P1102 P1501 COLD DMR-EH50EB/EG/EP,EH52EG Power Supply Block Diagram...
  • Page 136 NICAM DECODER P.C.B. FROM PWR SAVE :ON TIMER IC7501- SECTION IC7301- IC7301- IC1510 QR7401 IC7302 :ON) (REG.+5V) (RESET) PK7701 PK7301 VOUT JC REG.+5V IC7301- 26 FROM JC P ON TIMER IC7501- SECTION DMR-EH50EB/EG/EP,EH52EG DMR-EH50EB/EG/EP,EH52EG Power Supply Block Diagram Power Supply Block Diagram...

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