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.
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"...
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.
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.
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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.
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.
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.
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.
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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...
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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.
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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...
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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...
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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...
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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.
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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.
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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.
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.
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.
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.
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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..
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.
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).
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.
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DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 11.1.2. Checking and Repairing of RAM / Digital P.C.B. Module...
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DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 11.1.3. Checking and Repairing of Main P.C.B.
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DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 11.1.4. Checking and Repairing of HDD...
DMR-EH55EC / DMR-EH55EP / DMR-EH56EG 11.2. Caution for Replacing Parts 11.2.1. Items that should be done after replacing parts...
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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.
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.
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...
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...
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...
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.
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...
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.
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)
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.