Panasonic DMR-EH55EC Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. DVD Recorder
  5. DMR-EH55EC
  6. Service manual
Panasonic DMR-EH55EC Service Manual

Panasonic DMR-EH55EC Service Manual

Hide thumbs Also See for DMR-EH55EC:
Table of Contents

Advertisement

Quick Links

DMR-EH55EC
DMR-EH55EP
DMR-EH56EG
Vol. 1
Colour
(S).......................Silver Type
(K).......................Black Type
© 2006 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO.DSD0603003CE

DVD Recorder

Unauthorized
copying
and

Advertisement

Table of Contents
loading

Related Manuals for Panasonic DMR-EH55EC

Summary of Contents for Panasonic DMR-EH55EC

  • Page 1: Dvd Recorder

    ORDER NO.DSD0603003CE DVD Recorder DMR-EH55EC DMR-EH55EP DMR-EH56EG Vol. 1 Colour (S).......Silver Type (K).......Black Type © 2006 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG CONTENTS Page Page 1 Safety Precaution 13.1. Interconnection Schematic Diagram 1.1. General guidelines 13.2. Power Supply Schematic Diagram 2 Warning 13.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic 2.1. Prevention of Electrostatic Discharge (ESD) to...

  • Page 3: Safety Precaution

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 1 Safety Precaution 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. 2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 4: Warning

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatic Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistor-sand semiconductor "chip"...

  • Page 5: Precaution Of Laser Diode

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 2.2. Precaution of Laser Diode...

  • Page 6: Service Caution Based On Legal Restrictions

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 2.3. Service caution based on legal restrictions 2.3.1. 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 this equipment in considering the globally environmental conservation.

  • Page 7: Service Navigation

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 3 Service Navigation 3.1. Service Information 3.2. Caution for DivX...

  • Page 8: Specifications

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 4 Specifications...
  • Page 9 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG...

  • Page 10: New Feature

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 5 New Feature 5.1. About DivX 5.1.1. General DivX is a new video compressing format that is applied MPEG4 technology to improve image quality and the compressibility, and it is developed by the DivXNetworks, Inc., Video file of high resolution and the high picture quality can be made though it is a high compressibility.
  • Page 11 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG...
  • Page 12 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG...
  • Page 13 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG...
  • Page 14 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 5.1.3. About DivX DRM Divx file includes file to which DRM(Digital Right Management) is applied and file not applied. This item is a content that relates only in treating file to which DRM is applied.

  • Page 15: Location Of Controls And Components

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 6 Location of Controls and Components Followings are the Location of Controls and Components for DMR-EH55EC and DMR-EH56EG as a sample. For other model, refer to each Operation Instructions.
  • Page 16 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG...

  • Page 17: Operation Instructions

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 7 Operation Instructions 7.1. Taking out the Disc from DVD-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button 7.1.1. Forcible Disc Eject 7.1.1.1. When the power can be turned off. 1. Turn off the power and press [STOP] [CH UP] keys on the front panel simultaneously for 5 seconds.

  • Page 18: Service Mode

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 8 Service Mode 8.1. Self-Diagnosis and Special Mode Setting 8.1.1. 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.
  • Page 19 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Error Code Diagnosis contents Description Monitor Display Automatic FL display HARD Drive error The drive detected a hard error. “DVD drive error.” Display for 5 seconds. SELF Restoration operation Since the power cord fell out during a power...
  • Page 20 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Item FL display Key operation Mode name Description Front Key Child lock/unlock Set or release “Child Lock”. Press [ENTER] and [RETURN] by remote controller simultaneously until [X-HOLD] is displayed. NTSC/PAL system select To switch PAL/NTSC altemately.
  • Page 21 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Item FL display Key operation Mode name Description Front Key Demonstration Ejection of the disc is prohibited. *When lock the tray. When the power is on, press lock/unlock The lock setting is effective until unlocking the...
  • Page 22 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Item FL display Key operation Mode name Description (Remote controller key) White Picture Output White picture is output as component Output *Initial mode is “Interlace”. Press [1] [1] in service mode. from AV Decoder. *White picture...
  • Page 23 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Item FL display Key operation Mode name Description (Remote controller key) HDD READ inspection Perform a complete read inspection of the When the HDD is OK Press [3] [1] in service mode. HDD. *When canceling checking mode while executing, do “forced...
  • Page 24 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Item FL display Key operation Mode name Description (Remote controller key) RAM Drive Last Error RAM Drive error code display. 1. Error Number is displayed for 5 Press [4] [2] in service mode. *For details about the drive error code, refer seconds.
  • Page 25 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Item FL display Key operation Mode name Description (Remote controller key) Front connection Press all front keys and check the connection Press [5] [4] in service mode. inspection between Main P.C.B. and Front key Switches.
  • Page 26 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Item FL display Key operation Mode name Description (Remote controller key) AV4(V)/AV1(RGB) Set input to AV4 (V) and set output to AV1 Press [8] [0] in service mode. Setting (RGB) for I/O checking AV2(Y/C)/AV1(V) Set input to AV2 (Y/C) and set output to AV1 Press [8] [1] in service mode.

  • Page 27: Service Fixture & Tools

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 9 Service Fixture & Tools Part Number Description Compatibility RFKZ0260 Extension Cable (MainP.C.B. - RAM/Digital P.C.B. Module/ 88 Pin) Same as EH50 Series RFKZ0216 Extension Cable (MainP.C.B. - Power P.C.B./ 23 Pin) Same as E55 Series RFKZ0366 Extension FFC (HDD - RAM/Digital P.C.B.

  • Page 28: Disassembly And Assembly Instructions

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 10 Disassembly and Assembly Instructions 10.1. Disassembly Flow Chart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing. To assemble the unit, reverse the steps shown in the chart below.

  • Page 29: Top Case

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 10.3. Top Case 10.5. SD Card P.C.B. 1. Remove 2 screws (A) and 3 screws (B). 1. Remove 1 FFC and 2 screws (A) to remove SD Card P.C.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 30 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 1. Remove 1 FFC and Screws (A). Note: 2. Lift up Digital P.C.B. slightly so to disconnect Connectors to RAM/Digital P.C.B. Module as service part has no heat sink remove Digital P.C.B. unit. Before returning to customer, heat sink unit should be installed on Digital P.C.B..

  • Page 31: Dv Jack

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 10.7. DV Jack P.C.B. 10.8. HDD 1. Remove 1 Screw (A) to remove DV Jack P.C.B.

  • Page 32: Rear Panel

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 1. Remove ATAPI Connector and HDD Power Connector. 2. Remove 4 Screws (A) to remove HDD Angle with HDD. 10.9. Rear Panel 1. Disconnect Fan Connector. 3. Put HDD with HDD Angle up and down inversely so as not to give a shock to HDD.

  • Page 33: Power P.c.b

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 10.10. Power P.C.B. 2. Remove 6 Screws (A) and 1 Screw (B). 1. Remove 1 Screw (A). 3. Unlock 2 Locking Tabs (A) to remove Rear Panel. 2. Remove 3 Screws (B) and disconnect Connector (A) to remove Power P.C.B..

  • Page 34: Main P.c.b. And Front (L)

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 10.11. Main P.C.B. and Front (L) 10.12. Tuner P.C.B. P.C.B. 1. Pull out the Tuner P.C.B. in the direction of the arrow. 1. Remove 1 Screw (A). 2. Remove 4 Screws (A) and 1 Screw (B).

  • Page 35: Measurements And Adjustments

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 11 Measurements and Adjustments 11.1. Service Positions Note: For description of the disassembling procedure, see the section 10. 11.1.1. Checking and Repairing of Power P.C.B.
  • Page 36 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 11.1.2. Checking and Repairing of RAM / Digital P.C.B. Module...
  • Page 37 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 11.1.3. Checking and Repairing of Main P.C.B.
  • Page 38 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 11.1.4. Checking and Repairing of HDD...

  • Page 39: Caution For Replacing Parts

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 11.2. Caution for Replacing Parts 11.2.1. Items that should be done after replacing parts...
  • Page 40 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Note3: Please prepare latest firmware updating disc. * Main Firm is being recorded in HDD, but new HDD has no data. Writing Procedure of Main Firm: <<Caution>> (1) Writing of Main Firm needs 3, 4 minutes.

  • Page 41: Standard Inspection Specifications After Making Repairs

    Perform auto recording and playback for one minute using the RAM No abnormality should be seen in the picture, sound or operation. disc. *Panasonic DVD-RAM disc should be used when recording and playback. Model with the HDD: Perform auto recording and playback for one No abnormality should be seen in the picture, sound or operation.
  • Page 42 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG...

  • Page 43: Block Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 12 Block Diagram 12.1. Power Supply Block Diagram POWER P.C.B. MAIN P.C.B. Q1700 T1150 (REG.X SW+3.8V) POWER SWITCHING TRANSFORMER VA1110,L1120 D1140,C1143 D1270 X SW+3.8V P1102 P1501 X SW+3.8V 16,17,19 AC INLET P1101 F1101 SURGE RECTIFIER...
  • Page 44 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG MAIN P.C.B. DIGITAL P.C.B. ANA+3.3V P7402 P59001 IC50001/IC53001/IC53003/IC57001(+3.3V) D+3.8V P7402 P59001 X SW+3.8V 60,62 IC59504 IC59506 ANA+5V P7402 P59001 IC50001/IC53003/IC53202/ (REG.D+3.3V) (REG.D+3.3V) IC4901- IC1506 IC53203(+5V) (REG.DR+5V) IC50001/IC55004/I IC50001/IC50002/ IP50002 VOUT VOUT C55006/IC57001(+3.3V) IC50004(+3.3V) ON H...

  • Page 45: Analog Video Block Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 12.2. Analog Video Block Diagram :REC SIGNAL :PB SIGNAL IC3001 (VIDEO PROCESSOR) MAIN P.C.B. JK3903 (SW1) (SW2) 6MHz COMP P59001 P7402 C OUT DM 6MHz BIAS 12MHz (SW3) P59001 P7402 Y OUT DM 6MHz COMPONENT...

  • Page 46: Analog Audio Block Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 12.3. Analog Audio Block Diagram :REC SIGNAL :PB SIGNAL MAIN P.C.B. JK3001 REAR JACK D4005 Q4006 MIX L OUT2 MUTE LINE OUT FROM XTMUTE TIMER Q4007 IC7501- QR4002-QR4004 SECTION MUTE MIX R OUT2 MUTE LINE OUT...

  • Page 47: Analog Timer Block Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 12.4. Analog Timer Block Diagram IC7501 T7501 IR7501 (TIMER) DISPLAY HEATER POWER SWITCHING MAIN P.C.B. TRANSFORMER REMOTE CONTROL RECEIVER CTL. IP7501 D7506 P SAVE HEATER+ +38V UNREG.+38V PP7401 PS7801 POWER SAVE (IC PROTECTOR) U/V TUNER...
  • Page 48 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG...

  • Page 49: Schematic Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13 Schematic Diagram 13.1. Interconnection Schematic Diagram JW7001 JW7501 PS57001 P37001 KEY3_POWER KEY3_POWER TPA+ TPA+ TPA- TPA- TPB+ TPB+ TPB- TPB- FRONT(L) P.C.B. P7402 P59001 DIGITAL P.C.B. DGND DGND DGND DGND DV JACK P.C.B. DGND...

  • Page 50: Power Supply Schematic Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.2. Power Supply Schematic Diagram LB1122 C1125 VWJ0795=5 ECKWNA102MEV ZA1103 ZA1104 D1140 EYF52BCY EYF52BCY B0EDKT000009 #K3GE1ZA00010 #K3GE1ZA00010 (S1WBA80-7062) L1120 G0B233D00001 K1122 C1121 VWJ0795=10 F1101 ECQU2A223MLC T1150 K5D202BK0005 ETS28BF1W6AD 250V T2AL P1101 D1270 K2AA2H000007 B0JBSG000010 TO P1501 MAIN P.C.B.

  • Page 51: Main Net (1/4) Section (Main P.c.b. (1/4)) Schematic

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) LOCATION MAP TUREG5V X_SW5R2V IC1510 C0CBCDG00006 (PG050DNA1ZPH) X_SW_3R3V RESET_5R2V M:Main Net Section:(Page: AV:A/V I/O Section:(Page: X_SW3R3 DE:Nicam Decoder Section:(Page: T:Timer Section:(Page: NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING.

  • Page 52: Main Net (2/4) Section (Main P.c.b. (1/4)) Schematic

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.4. Main Net (2/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) LOCATION MAP ZJ7402 K9ZZ00001279 ZJ7404 K9ZZ00001279 TO PS7801 TUNER PACK P.C.B. PP7401 K1KA18AA0288 BOOSTER5V TL7402 RFC_AUDIO[EB] RFC_AMUTE[EB] PS5V CPSVOUT[EB] QR7401 PS5V UNR521300L TUREG5V (UN5213-TX)

  • Page 53: Main Net (3/4) Section (Main P.c.b. (1/4)) Schematic

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.5. Main Net (3/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) MAIN NET SECTION (1/4) ANA5V P_OFF_L DR_P_ON_H HDD_PFAIL IC1506 DR12V Q1509 C0DAEYH00002 B1DHED000008 (UPA1717G-E1-A) DR5V TO P59001 ZJ7401 SOURSE VIN VOUT DIGITAL P.C.B. K9ZZ00001279...

  • Page 54: Main Net (4/4) Section (Main P.c.b. (1/4)) Schematic Diagram (M)

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.6. Main Net (4/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) MAIN NET SECTION (2/4) R7405 Q7401 ERDS2TJ471T 2SD1819AWL R7404 D7403 MA2C165001VT R7407 C7407 (MA165TA5VT) L7402 G0A220GA0026 R7406 R7408 470K LB7407 J0JKB0000012 QR7403 QR7404 UNR521500L...
  • Page 55 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG IC1510 IC1505 IC1521 IC7402 TU +5V SWITCHING REGULATOR XSW +3.3V SWITCHING REGULATOR ANA +3.3V SWITCHING REGULATOR BOOSTER +5V SWITCHING REGULATOR IC-DETAIL BLOCK DIAGRAM IC-DETAIL BLOCK DIAGRAM IC-DETAIL BLOCK DIAGRAM IC-DETAIL BLOCK DIAGRAM CONT VOUT Vout...

  • Page 56: A/V I/O (1/4) Section (Main P.c.b. (2/4)) Schematic Diagram (Av)

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.7. A/V I/O (1/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) LOCATION MAP C4033 R4046 R4055 C4063 16V22 D0HB682ZA002 D0HB123ZA002 16V22 R4076 R4090 G_MIXLOUT_A R4077 M:Main Net Section:(Page: C4060 33P[22] D4005 R4002 AV:A/V I/O Section:(Page:...

  • Page 57: A/V I/O (2/4) Section (Main P.c.b. (2/4)) Schematic

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.8. A/V I/O (2/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) LOCATION MAP M:Main Net Section:(Page: AV:A/V I/O Section:(Page: DE:Nicam Decoder Section:(Page: T:Timer Section:(Page: AV2-8PIN C3957 470P R3930 AV3_S_IN_L C3958 470P ZJ7501 JK3002 R3989 R3992...

  • Page 58: A/V I/O (3/4) Section (Main P.c.b. (2/4)) Schematic

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.9. A/V I/O (3/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) A/V I/O SECTION (1/4) R4003 G_AADC_L_A R4005 G_AADC_R_A G_CIN_DM_A G_V_YIN_DM_A G_SLICER_A G_CSYNC_A G_IIC_CLK_A G_IIC_DATA_A SYNC_DET G_COUT_DM_A G_YOUT_DM_A G_BPBOUT_D_A G_RPROUT_D_A LB3001 PS_5V J0JGC0000020 G_GPYOUT_D_A PS_11R6V...

  • Page 59: A/V I/O (4/4) Section (Main P.c.b. (2/4)) Schematic

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.10. A/V I/O (4/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) F G H N O P Q R S Z AA AB AC AD AE AG AH AI AJ AK AL AM A/V I/O SECTION...
  • Page 60 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG IC3001 IC4011 VIDEO/AUDIO PROCESSOR AU +5V SWITCHING REGULATOR IC-DETAIL BLOCK DIAGRAM IC-DETAIL BLOCK DIAGRAM VOUT (SW1) (SW2) 6MHz COMP 6MHz BIAS 12MHz (SW3) 6MHz CLAMP CLAMP/ BIAS (SW4) COMP 6MHz 12MHz CLAMP (SW6) CLAMP/ (SW5)

  • Page 61: Nicam Decoder Section (Main P.c.b. (3/4)) Schematic Diagram (De)

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.11. Nicam Decoder Section (Main P.C.B. (3/4)) Schematic Diagram (DE) IC7301 C7339 RESET ECJ1VC1H090D(EG) IC-DETAIL BLOCK DIAGRAM L7304 R7326 1200(EG) 470u(EG) 0(EXCEPT EG) 2.2u(EXCEPT EG) G_SIFIN_A K7306 0(EG) G_TU_A_IN_A R7322 R7321 C7327 L7302 TU_REG5V 0(EXCEPT EG) 5600(EG) 0.012(EG)

  • Page 62: Timer (1/4) Section (Main P.c.b. (4/4)) Schematic

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.12. Timer (1/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) LOCATION MAP DP7501 A2BD00000145 TL7513 M:Main Net Section:(Page: AV:A/V I/O Section:(Page: DE:Nicam Decoder Section:(Page: T:Timer Section:(Page: FL10 FL23 FL09 [31]FL11 [20]FL22 FL24 FL08 FL25 IC7504...

  • Page 63: Timer (2/4) Section (Main P.c.b. (4/4)) Schematic

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.13. Timer (2/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) LOCATION MAP M:Main Net Section:(Page: D7510 D7504 MA2C165001VT MAZ4220NLF AV:A/V I/O Section:(Page: L7501 G0C390JA0055 IP7501 DE:Nicam Decoder Section:(Page: ELESN390JA K5H7512A0010 T:Timer Section:(Page: R7615 T7501 G4D1A0000117...

  • Page 64: Timer (3/4) Section (Main P.c.b. (4/4)) Schematic

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.14. Timer (3/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) TIMER SECTION (1/4) 97 96 92 91 87 86 84 83 CL7501 C7522 100P TL7515 R7516 22(EC) R7527 G_CSYNC_A VSYNC TL7509 R7528 FL_TXD [1]NC(OPEN) [80]NC(OPEN)

  • Page 65: Timer (4/4) Section (Main P.c.b. (4/4)) Schematic Diagram (T)

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.15. Timer (4/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) M N O P Q TIMER SECTION (2/4) QR7507 UNR521000L RESET_5R2V IOPWR_SAVE_H R7586 D7502 R7583 R7584 B0ACCK000005 4700 (1SS355) TO JW7001 FRONT(L) P.C.B. JW7501 VWJ02F0060VV...

  • Page 66: Tuner Pack Schematic Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.16. Tuner Pack Schematic Diagram TO PP7401 TU7801 MAIN P.C.B. ENGF7503GF(EG) C7828 K7808 (MAIN NET(2/4) SECTION) C7809 ENGF7501GF(EC) 0.01 ERJ3GEY0R00V 0.01 ENGF7502GF(EP) PS7801 LB7802 K1KB18B00012 J0JHC0000032 BOOSTER+B BOOSTER_5V RFC_AUDIO AUDIO IN RFC_A_MUTE MSDA PS_5V CPS_V_OUT...

  • Page 67: Sd Card Schematic Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.17. SD Card Schematic Diagram TO P53501 DIGITAL P.C.B. (BE(1/4) SECTION) P6802 SD CARD K1MY20AA0021 P6801 K1NA09E00075 SDAT1 DAT1 SCDA4A0200 SDAT0 DAT0 R6802 G_SCLK_B CKE9 DAT2 SCMD CKE1 C6801 RX6801 DAT3 0.01 SDAT3 EXB38V220JV DAT3...

  • Page 68: Front (L) Schematic Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 13.18. Front (L) Schematic Diagram POWER S7002 TO JW7501 MAIN P.C.B. EVQ11A04M (TIMER(4/4) SECTION) JW7001 [VWJ02F0060VV] KEY3_POWER NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING. THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST,AND MAY BE DMR-EH55EC/EP,EH56EG SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.

  • Page 69: Printed Circuit Board

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 14 Printed Circuit Board 14.1. Power P.C.B. Power P.C.B. D1152 LB1123 C1200 C1707 R1210 Integrated Circuit IC1150 D1155 LB1124 C1201 C1800 R1601 IC1200 D1156 LB1126 C1270 R1602 Resistor IC1601 D1157 LB1600 C1271 R1150 R1603 IC1701...

  • Page 70: Main

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 14.2. Main P.C.B. 14.2.1. Main P.C.B. (1/4 Section) Location Map (REAR) (FRONT) DMR-EH55EC/EP,EH56EG Main P.C.B. (RFKB79119HT:EH55EC, RFKB79119JT:EH55EP, RFKB79119GT: EH56EG) (1/4 Section)
  • Page 71 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 14.2.2. Main P.C.B. (2/4 Section) Location Map (REAR) (FRONT) DMR-EH55EC/EP,EH56EG Main P.C.B. (RFKB79119HT:EH55EC, RFKB79119JT:EH55EP, RFKB79119GT: EH56EG) (2/4 Section)
  • Page 72 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 14.2.3. Main P.C.B. (3/4 Section) Main P.C.B. (EC/EP) (EG) (EC/EP) (EG) (EC) Location Map (REAR) (FRONT) DMR-EH55EC/EP,EH56EG Main P.C.B. (RFKB79119HT:EH55EC, RFKB79119JT:EH55EP, RFKB79119GT: EH56EG) (3/4 Section)
  • Page 73 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 14.2.4. Main P.C.B. (4/4 Section) (EG) (EC/EP) (EC/EP) (EG) (EG) (EC/EP) (EG) (EG) (EC/EP) (EC) (EG) Location Map (REAR) (FRONT) DMR-EH55EC/EP,EH56EG Main P.C.B. (RFKB79119HT:EH55EC, RFKB79119JT:EH55EP, RFKB79119GT: EH56EG) (4/4 Section)
  • Page 74 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 14.2.5. Main P.C.B. Address Information Main P.C.B. Integrated Circuit CL7508 LB3002 C1521 C3915 C7317 C7552 R3928 R7325 R7575 IC1505 TL3001 LB3003 C1522 C3916 C7318 C7553 R3929 R7326 R7576 IC1506 TL7401 LB3005 C1523 C3917 C7323 C7554...

  • Page 75: Tuner P.c.b. And Dv Jack P.c.b

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 14.3. Tuner P.C.B. and DV Jack P.C.B. DV Jack P.C.B. Tuner P.C.B. (EP) (EP) (EC/EG) (EC) DMR-EH55EC/EP,EH56EG Tuner P.C.B. ( VEP07A91B:EH55EC, DMR-EH55EC/EP,EH56EG VEP07A91D:EH55EP, DV JACK P.C.B. VEP07A91A:EH56EG) (VEP73135A)

  • Page 76: Sd Card P.c.b. And Front (L) P.c.b

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 14.4. SD Card P.C.B. and Front (L) P.C.B. Front (L) P.C.B. SD Card P.C.B. DMR-EH55EC/EP,EH56EG DMR-EH55EC/EP,EH56EG SD Card P.C.B. Front (L) P.C.B. (VEP73136A) (VEP70161A)

  • Page 77: Appendix For Schematic Diagram

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 15 Appendix for Schematic Diagram 15.1. Voltage and Waveform Chart Note) Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
  • Page 78 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG IC4009 IC4011 Ref No. MODE 11.6 PLAY 11.6 STOP 11.6 IC4012 IC4901 Ref No. MODE 11.6 PLAY 11.6 STOP 11.6 IC7301 Ref No. MODE PLAY STOP Ref No. IC7301 MODE PLAY STOP Ref No. IC7301...
  • Page 79 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Ref No. Q1501 Q1509 MODE 12.4 12.4 12.4 12.3 12.3 12.3 12.3 PLAY 12.4 12.4 12.4 12.3 12.3 12.3 12.3 STOP 12.4 12.4 12.4 12.3 12.3 12.3 12.3 Ref No. Q4006 Q4007 Q4008 Q4009 Q7401 MODE -0.1...
  • Page 80 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 15.1.5. Waveform Chart T1150-12 STOP T1150-4,5 STOP IC1150-1 STOP T1150-8 STOP 10Vp-p (2m sec.div) 30Vp-p (5 sec.div) 10.0Vp-p (5 sec.div) 30Vp-p (5 sec.div) IC1150-9 STOP P7402-29,31 REC/PLAY P7402-51 REC/PLAY P7402-55 REC/PLAY 580Vp-p (5 sec.div) 0.8Vp-p (1m sec.div) 1.0Vp-p (20 sec.div)
  • Page 81 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 15.1.6. Abbreviations INITIAL/LOGO ABBREVIATIONS INITIAL/LOGO ABBREVIATIONS A0~UP ADDRESS IECOUT IEC958 FORMAT DATA OUTPUT ACLK AUDIO CLOCK IPFRAG INTERPOLATION FLAG AD0~UP ADDRESS BUS IREF I (CURRENT) REFERENCE ADATA AUDIO PES PACKET DATA ISEL INTERFACE MODE SELECT...
  • Page 82 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 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...

  • Page 83: Parts And Exploded Views

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 16 Parts and Exploded Views 16.1. Exploded Views 16.1.1. Casing Parts & Mechanism Section...
  • Page 84 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 16.1.2. Packing & Accessories Section...

  • Page 85: Replacement Parts List

    DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 16.2. Replacement Parts List Ref. Part No. Part Name & Remarks Description C3003 F1H1C104A042 16V 0.1U Notes: C3004 F1H1C104A042 16V 0.1U *Important safety notice: C3005 ECA0JM471B 6.3V 470U C3006 ECA0JM471B 6.3V 470U Components identified mark...
  • Page 86 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description C4034 F2A1C220B173 16V 22P C7335 F1H1H1030006 50V 0.01U EGS,EGK C4055 F1H1C104A008 16V 0.1U C7336 F1H1C104A042 16V 0.1U EGS,EGK C4056...
  • Page 87 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description D3901 MA2C165001VT DIODE L7402 G0A220GA0026 COIL 22UH D4001 MA2C165001VT DIODE L7501 G0C390JA0055 COIL 39UH D4005 MA3Z142D0LG DIODE L7502 G0C220JA0019...
  • Page 88 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description Q7401 2SD1819ARL TRANSISTOR R3930 D0GB750JA057 1/10W 75 Q7402 2SD1819A0L TRANSISTOR R3932 D0GB750JA057 1/10W 75 Q7501 2SB1218A0L TRANSISTOR R3934 D0GB750JA057...
  • Page 89 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description R7401 D0GB104JA057 1/10W 100K R7589 D0GB221JA057 1/10W 220 R7402 D0GB103JA057 1/10W 10K R7590 D0GB104JA057 1/10W 100K R7403 D0GB153JA057 1/10W 15K...
  • Page 90 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description W531 ERJ6GEY0R00Z 1/8W 0 W512 D0YBR0000020 1/10W 0 W532 ERJ6GEY0R00Z 1/8W 0 W513 D0YBR0000020 1/10W 0 W533 ERJ6GEY0R00Z 1/8W 0...
  • Page 91 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description R1803 ERJ6GEYJ103V 1/8W 10K D1140 B0EDKT000009 DIODE D1151 B0HAGM000006 DIODE T1150 ETS28BF1W6AD TRANSFORMER D1152 MAZ4100NMF DIODE D1155 MAZ73000BC DIODE...
  • Page 92 DMR-EH55EC / DMR-EH55EP / DMR-EH56EG Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description RYP1319F-K FRONT PANEL ASS’Y RQT8419-E OPERATING (IF)ECS,ECK INSTRUCTIONS RYP1319F-S FRONT PANEL ASS’Y RQT8420-M OPERATING (IG)ECS,ECK INSTRUCTIONS 18-1 RGK1968A-Q FL ORNAMENT...

This manual is also suitable for:

Dmr-eh56egDmr-eh55ep

Table of Contents