Panasonic DMR-EX77EG Service Manual
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Panasonic DMR-EX77EG Service Manual

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Model No.
Vol. 1
Colour
(S).......................Silver Type (EX77EG/EC/EC1/EB)
(K).......................Black Type
© 2007 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO.DSD0705007CE
DVD Recorder
Unauthorized
copying
and

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Summary of Contents for Panasonic DMR-EX77EG

  • Page 1 ORDER NO.DSD0705007CE DVD Recorder Model No. Vol. 1 Colour (S).......Silver Type (EX77EG/EC/EC1/EB) (K).......Black Type © 2007 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB CONTENTS Page Page 1 Safety Precaution 12.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic 1.1. General guidelines Diagram (M) 2 Warning 12.4. Main Net (2/4) Section (Main P.C.B. (1/4)) Schematic 2.1.

  • Page 3: Safety Precaution

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 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.

  • Page 4: Warning

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 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.

  • Page 5: Precaution Of Laser Diode

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 2.2. Precaution of Laser Diode...

  • Page 6: Service Caution Based On Legal Restrictions

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 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-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 3 Service Navigation 3.1. Service Information 3.2. Caution for DivX (Except EB)

  • Page 8: Specifications

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 4 Specifications Power supply: AC220 – 240V 50Hz Recording time Power consumption: DMR-EX77: Approx. 35W Approx. DMR-EX87: Approx. 36W Rec. DVD-RAM DVD-R/ DVD-R DL +R DL...
  • Page 9 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Audio Completion method *5: Total number of recognizable file including MP3, JPEG, DivX(except EB) and Recording System: Dolby Digital 2ch, Linear PCM (XP mode) other type of files is 4000.

  • Page 10: Location Of Controls And Components

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 5 Location of Controls and Components Followings are the Location of Controls and Components for DMR-EX77EB, DMR-EX87EB as a sample. For other model, refer to each Operation Instructions.
  • Page 11 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Remote control 1 Turn the unit on or off 2 Select drive [HDD, DVD or SD 3 Select channels and title numbers, etc./Enter numbers 4 Delete items...

  • Page 12: Operation Instructions

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 6 Operation Instructions 6.1. Taking out the Disc from DVD-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button 6.1.1. Forcible Disc Eject 6.1.1.1.
  • Page 13 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 6.1.2. When the Forcible Disc Eject can not be done.
  • Page 14 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 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 Eject Pin (JZJ0484) or minus screw driver (small) in the direction of arrow to eject tray slightly.

  • Page 15: Service Mode

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 7 Service Mode 7.1. Self-Diagnosis and Special Mode Setting 7.1.1. Self-Diagnosis Functions Self-Diagnosis Function provides information for errors to service personnel by “Self-Diagnosis Display” when any error has occurred.
  • Page 16 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Error Code Diagnosis contents Description Monitor Display Automatic FL display The unit is carrying out its No display recovery process. Hang-up Displayed when communication error has...
  • Page 17 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Error Code Diagnosis contents Description Monitor Display Automatic FL display UNFORM Unformatted disc error You have inserted an unformatted DVD-RAM or DVD-RW that is unformatted or recorded on other equipment.
  • Page 18 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Item FL display Key operation Mode name Description Front Key Aging Perform sequence of modes as * Aging Display following the then mode. When the power is ON, press Description shown below continually.
  • Page 19 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Item FL display Key operation Mode name Description Front Key Progressive initialization The progressive setting is initialized to display before execution When the power is on (E-E mode), Interlace.
  • Page 20 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Item FL display Key operation Mode name Description (Remote controller key) RTSC Return in XP AV1 input signal is encoded (XP), decoded Initial mode: EE2/ Interlace/ XP/ Press [1] [3] in service mode.
  • Page 21 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Item FL display Key operation Mode name Description (Remote controller key) READ SEEK Inspecting seek time of HSS to inspect At start Press [3] [1] in service mode.
  • Page 22 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Item FL display Key operation Mode name Description (Remote controller key) READ VERIFY Measure of access time in READ VERIFY At start Press [3] [2] in service mode.
  • Page 23 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Item FL display Key operation Mode name Description (Remote controller key) HDD High Speed Scan Press [3] [6] in service mode. The [*] sign is added every 10 seconds while inspecting.
  • Page 24 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 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.
  • Page 25 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 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.
  • Page 26 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 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.

  • Page 27: Service Fixture & Tools

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 8 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 RFKZ0327 Extension Cable (MainP.C.B. - Power P.C.B./ 15 Pin)

  • Page 28: Disassembly And Assembly Instructions

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 9 Disassembly and Assembly Instructions 9.1. Disassembly Flow Chart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing.

  • Page 29: Positions

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 9.2. P.C.B. Positions...

  • Page 30: Top Cover

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 9.3. Top cover 9.4.1. How to assemble Tray door ass’y 1. Attach Blinder spring to Tray door ass’y. 1. Remove the 2 screws (A) and 3 screws (B).

  • Page 31: Hdd, Atapi P.c.b

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 3. Confirm the Brinder spring is attached as following. 9.5. HDD, ATAPI P.C.B. Handling of HDD The following precautions should be taken when handling HDD.
  • Page 32 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 1. Remove the 2 Screws (A) and (B), FFC and Wire with 3. Remove 4 Screws (C) to remove HDD from HDD angle. connector to remove HDD with ATAPI P.C.B..

  • Page 33: Ram/Digital P.c.b. Module

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 9.6. RAM/Digital P.C.B. Module 3. Put Digital P.C.B. on DVD drive and remove RAM/Digital P.C.B. Module. 1. Remove the 3 Screws (A) and Screw (B) to remove Digital Shield.

  • Page 34: Sd/Dv Jack P.c.b

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 9.7. SD/DV Jack P.C.B. 9.8. Rear Panel 1. Remove Screw (A) to remove DV jack P.C.B.. 9.8.1. Only Fan Motor 1. Remove the 2 Screws (C) and fan connector, remove the Fan motor with pushing 2 tabs in the direction of arrows.

  • Page 35: Power P.c.b

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 9.9. Power P.C.B. 9.10. HDMI P.C.B. 1. Remove 3 Screws (A) and disconnect the connector to 1. Push the PCB spacer in the direction of arrows and lift up remove Power P.C.B..

  • Page 36: Main P.c.b., Front Jack P.c.b. And Front (L)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 9.12. Main P.C.B., Front Jack P.C.B. and Front (L) P.C.B. 1. Remove 4 Screws (A) and Screw (B). 2. Remove Front angle and Rear angle B.

  • Page 37: Measurements And Adjustments

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 10 Measurements and Adjustments 10.1. Service Positions Note: For description of the disassembling procedure, see the section 9. 10.1.1. Checking and Repairing of Power P.C.B.
  • Page 38 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 10.1.2. Checking and Repairing of RAM / Digital P.C.B. Module...
  • Page 39 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 10.1.3. Checking and Repairing of Main P.C.B.
  • Page 40 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 10.1.4. Checking and Repairing of HDD...

  • Page 41: Caution For Replacing Parts

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 10.2. Caution for Replacing Parts 10.2.1. Items that should be done after replacing parts...
  • Page 42 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 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>>...

  • Page 43: Standard Inspection Specifications After Making Repairs

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 10.3. Standard Inspection Specifications after Making Repairs After making repairs, we recommend performing the following inspection, to check normal operation. Procedure Item to Check Turn on the power, and confirm items pointed out.
  • Page 44 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB...

  • Page 45: Block Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 11 Block Diagram 11.1. Power Supply Block Diagram POWER P.C.B. MAIN P.C.B. D1400 X SW+3V P1102 P1501 X SW+3V 12,13 T1150 POWER SWITCHING TRANSFORMER VA1110,L1120,L1121...
  • Page 46 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB MAIN P.C.B. HDMI P.C.B. IC56105 (REG.+5V) IP7502 (IC PROTECTOR) XSW+5.8V_AV P7501 P56101 P56102- 18 CONT XSW+3V P7402 P59001 ANA+3.3V P7402 P59001 DIGITAL D+3.8V P7402 P59001 P.C.B.

  • Page 47: Analog Video Block Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 11.2. 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...

  • Page 48: Analog Audio Block Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 11.3. Analog Audio Block Diagram :REC SIGNAL :PB SIGNAL MAIN P.C.B. JK3001 REAR JACK D4005 Q4006 MIX L OUT2 MUTE LINE OUT Q4007 QR4002 (AUDIO MUTE DRIVE)

  • Page 49: Analog Timer Block Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 11.4. Analog Timer Block Diagram IC7501 T7501 IR7501 (TIMER) DISPLAY HEATER POWER SWITCHING MAIN P.C.B. TRANSFORMER REMOTE CONTROL RECEIVER QR7402 CTL. D7506 IP7501 P SAVE...

  • Page 50: Hdmi Block Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 11.5. HDMI Block Diagram IC56103 (HDMI TRANSMITTER) P55003 P56103 P55003 P56103 P55003 P56103 P55003 P56103 P55003 P56103 P55003 P56103 P55003 P56103 HDMI CONNECTOR P55003 P56103...

  • Page 51: Schematic Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12 Schematic Diagram 12.1. Interconnection Schematic Diagram BACKEND P.C.B. JW7001 FC7001 KEY3_POWER KEY3_POWER P7402 P59001 DGND DGND P7412 PS90002 FRONT(L) P.C.B. DGND DGND DEC AUD L...

  • Page 52: Power Supply Schematic Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.2. Power Supply Schematic Diagram K1120 LB1125 LB1122 C1125 $[VWJ0795=10] J0JHC0000048 J0JKB0000003 ECKWNA102MEV K1122 NOTSPECIFIEDDC $[VWJ0795=10] ZA1103 ZA1104 D1400 D1140 EYF52BCY EYF52BCY B0JANE000037 L1120 L1121...

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

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING. LOCATION MAP THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST,AND MAY BE SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.

  • Page 54: Main Net (2/4) Section (Main P.c.b. (1/4)) Schematic Diagram (M)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.4. Main Net (2/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) LOCATION MAP NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING.

  • Page 55: Main Net (3/4) Section (Main P.c.b. (1/4)) Schematic Diagram (M)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.5. Main Net (3/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) 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 SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.

  • Page 56: Main Net (4/4) Section (Main P.c.b. (1/4)) Schematic Diagram (M)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.6. Main Net (4/4) Section (Main P.C.B. (1/4)) Schematic Diagram (M) 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 SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
  • Page 57 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB IC7401 IC1510 IC1501 PS +11.6V SWITCHING REGULATOR TU +5V SWITCHING REGULATOR RESET IC-DETAIL BLOCK DIAGRAM IC-DETAIL BLOCK DIAGRAM IC-DETAIL BLOCK DIAGRAM VOUT VOUT SENSE ON/OFF...

  • Page 58: Av I/O (1/4) Section (Main P.c.b. (2/4)) Schematic Diagram (Av)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.7. AV I/O (1/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) LOCATION MAP NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING.

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

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.8. AV I/O (2/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) LOCATION MAP NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING.

  • Page 60: Av I/O (3/4) Section (Main P.c.b. (2/4)) Schematic Diagram (Av)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.9. AV I/O (3/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) 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 SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.

  • Page 61: Av I/O (4/4) Section (Main P.c.b. (2/4)) Schematic Diagram (Av)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.10. AV I/O (4/4) Section (Main P.C.B. (2/4)) Schematic Diagram (AV) 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 SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
  • Page 62 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB IC3001 IC4001 VIDEO/AUDIO PROCESSOR AU +5V SWITCHING REGULATOR IC-DETAIL BLOCK DIAGRAM IC-DETAIL BLOCK DIAGRAM VOUT (SW1) (SW2) COMP 6MHz 6MHz BIAS 12MHz (SW3) 6MHz CLAMP...

  • Page 63: Tuner Section (Main P.c.b. (3/4)) Schematic Diagram (Tu)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.11. Tuner Section (Main P.C.B. (3/4)) Schematic Diagram (TU) Modify Category Variation Type Variation Category DMR-EH575EG C/D/F/G/R/S J/L/U/V DMR-EH57EC C7301 0.01 0.01 0.01 DMR-EH57EP C7302...
  • Page 64 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB IC7301 IC7302 DECODER RESET IC-DETAIL BLOCK DIAGRAM IC-DETAIL BLOCK DIAGRAM AF SWITCH Vref DIGITAL IDENTIFICATION PILOT NARROW-BAND PLL STEREO DECODER STEREO ADJUST IIC BUS TRANSCEVER...

  • Page 65: Timer (1/4) Section (Main P.c.b. (4/4)) Schematic Diagram (T)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.12. Timer (1/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) LOCATION MAP 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 DP7501 SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.

  • Page 66: Timer (2/4) Section (Main P.c.b. (4/4)) Schematic Diagram (T)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.13. Timer (2/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) 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 SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.

  • Page 67: Timer (3/4) Section (Main P.c.b. (4/4)) Schematic Diagram (T)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.14. Timer (3/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) 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 SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.

  • Page 68: Timer (4/4) Section (Main P.c.b. (4/4)) Schematic Diagram (T)

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.15. Timer (4/4) Section (Main P.C.B. (4/4)) Schematic Diagram (T) 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 SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.

  • Page 69: Hdmi Schematic Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.16. HDMI Schematic Diagram Modify Category Variation Category Variation Type ET56101 $[K4CD01000010] $[K4CD01000010] K4CD01000010 DMR-EH57, EH575, EH67, EH675 FP56101 $[K1MN30AA0082] K1MN30AA0082 $[K1MN30AA0082] P56101 K1KB10A00124 $[K1KB10A00124]...

  • Page 70: Dv Jack/Sd Card Schematic Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.17. DV Jack/SD Card Schematic Diagram 12.18. Front Jack Schematic Diagram TO JW3001 MAIN P.C.B. (AV IO (2/4) SECTION) JW3801 LB3801 J0JBC0000011 FRONT_R_IN LB3802 JK3801...

  • Page 71: Atapi Schematic Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 12.20. ATAPI Schematic Diagram TO P58001 DIGITAL P.C.B. TO HDD (BE (2/4) SECTION) P9801 P9802 K1KB40A00124 K1MN40BA0173 [DASP-NC] [DASP-NC] DA1- CS1- DA0- CS0- PDIAG-[C] PDIAG-[C]...
  • Page 72 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB...

  • Page 73: Printed Circuit Board

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13 Printed Circuit Board 13.1. Power P.C.B. Power P.C.B. COLD DMR-EX77EG/EC/EC1/EB, EX87EG/EC/EC1/EB Power P.C.B. (VEP71118A)

  • Page 74: Main

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13.2. Main P.C.B. 13.2.1. Main P.C.B. (1/4 Section) Location Map (FRONT) (REAR) DMR-EX77EG/EC/EC1/EB, EX87EG/EC/EC1/EB Main P.C.B. (RFKB79156HT:EX77EG,RFKB79156JT:EX77EC/EC1, RFKB79156K:EX77EB, RFKB79156TT:EX87EG,RFKB79156UT:EX87EC/EC1, RFKB79156X:EX87EB) (1/4 Section)
  • Page 75 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13.2.2. Main P.C.B. (2/4 Section) Location Map (FRONT) (REAR) DMR-EX77EG/EC/EC1/EB, EX87EG/EC/EC1/EB Main P.C.B. (RFKB79156HT:EX77EG,RFKB79156JT:EX77EC/EC1, RFKB79156K:EX77EB, RFKB79156TT:EX87EG,RFKB79156UT:EX87EC/EC1, RFKB79156X:EX87EB) (2/4 Section)
  • Page 76 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13.2.3. Main P.C.B. (3/4 Section) Main P.C.B. Location Map (FRONT) (REAR) DMR-EX77EG/EC/EC1/EB, EX87EG/EC/EC1/EB Main P.C.B. (RFKB79156HT:EX77EG,RFKB79156JT:EX77EC/EC1, RFKB79156K:EX77EB, RFKB79156TT:EX87EG,RFKB79156UT:EX87EC/EC1, RFKB79156X:EX87EB) (3/4 Section)
  • Page 77 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13.2.4. Main P.C.B. (4/4 Section) Location Map (FRONT) (REAR) DMR-EX77EG/EC/EC1/EB, EX87EG/EC/EC1/EB Main P.C.B. (RFKB79156HT:EX77EG,RFKB79156JT:EX77EC/EC1, RFKB79156K:EX77EB, RFKB79156TT:EX87EG,RFKB79156UT:EX87EC/EC1, RFKB79156X:EX87EB) (4/4 Section)
  • Page 78 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13.2.5. Main P.C.B. Address Information Main P.C.B. Integrated Circuit CL7403 JK3903 LB3006 C1535 C3064 C7308 C7525 C7829 R3988 R7503 R7571 IC1501 CL7404 P1501 LB3007 C1536...

  • Page 79: Hdmi P.c.b

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13.3. HDMI P.C.B. HDMI P.C.B. (COMPONENT SIDE) (FOIL SIDE) DMR-EX77EG/EC/EC1/EB, EX87EG/EC/EC1/EB HDMI P.C.B. (VEP73148A)

  • Page 80: Front Jack P.c.b. And Front (L) P.c.b

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13.4. Front Jack P.C.B. and Front (L) P.C.B. Front Jack P.C.B. Front (L) P.C.B. DMR-EX77EG/EC/EC1/EB, DMR-EX77EG/EC/EC1/EB, EX87EG/EC/EC1/EB EX87EG/EC/EC1/EB Front Jack P.C.B. Front (L) P.C.B. (VEP73146A)

  • Page 81: Dv Jack And Sd Card P.c.b

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13.5. DV Jack and SD Card P.C.B. DV Jack/SD Card P.C.B. (COMPONENT SIDE) (FOIL SIDE) DMR-EX77EG/EC/EC1/EB, EX87EG/EC/EC1/EB DV Jack/SD Card P.C.B. (VEP73150A)

  • Page 82: Atapi P.c.b

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 13.6. ATAPI P.C.B. ATAPI P.C.B. DMR-EX77EG/EC/EC1/EB, EX87EG/EC/EC1/EB ATAPI P.C.B. (VEP70194A)

  • Page 83: Appendix For Schematic Diagram

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 14 Appendix for Schematic Diagram 14.1. 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 84 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB IC4001 IC4009 Ref No. MODE 11.6 PLAY 11.6 STOP 11.6 IC4012 IC4901 Ref No. MODE 11.6 PLAY 11.6 STOP 11.6 Ref No. IC7301 MODE PLAY...
  • Page 85 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Q1501 Q1502 Q1508 Ref No. MODE 12.2 PLAY 12.2 STOP 12.2 Q1509 Q4006 Q4007 Q4008 Ref No. MODE 12.4 12.4 12.4 12.3 12.3 12.3 12.3 -0.1...
  • Page 86 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 14.1.4. HDMI P.C.B. IC56103 Ref No. MODE PLAY STOP IC56103 Ref No. MODE PLAY STOP IC56103 Ref No. MODE PLAY STOP IC56103 Ref No. MODE...
  • Page 87 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 14.1.6. Waveform Chart T1150-12 STOP T1150-4 STOP IC1150-1 STOP T1150-5,6 STOP 10Vp-p (2m sec.div) 8.6Vp-p (50 sec.div) 8.0Vp-p (50 sec.div) 34Vp-p (50 sec.div) IC1150-9 STOP...
  • Page 88 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 14.1.7. 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...
  • Page 89 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 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...

  • Page 90: Parts And Exploded Views

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 15 Parts and Exploded Views 15.1. Exploded Views 15.1.1. Casing Parts & Mechanism Section...
  • Page 91 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 15.1.2. Packing & Accessories Section...

  • Page 92: Replacement Parts List

    DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB 15.2. Replacement Parts List Ref. Part No. Part Name & Remarks Description C1557 F2A0J6810007 6.3V 680P Notes: C1558 F2A1A1010072 10V 100U *Important safety notice: C1560 F2A0J101A825 6.3V 100U...
  • Page 93 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description C4027 F2A1V100A534 35V 10U C7417 F1H1C104A042 16V 0.1U C4028...
  • Page 94 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description C7828 ECJ1VC1H680J 50V 68P EC,EC1 K7516 D0YBR0000020 1/10W 0...
  • Page 95 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description LB7805 J0JCC0000103 COIL R3901 D1BB75R0A010 2W 75 R3902 D1BB75R0A010...
  • Page 96 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description R7312 ERJ3GEYF682V 1/10W 6.8K R7568 D0GB473JA057 1/10W 47K R7313...
  • Page 97 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description W711 D0YBR0000020 1/10W 0 R3803 D0GB750JA057 1/10W 75 W712...
  • Page 98 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description LB1126 ERJ6GEY0R00Z 1/8W 0 LB1600 J0JHC0000048 FILTER RX66801 EXB38V123JV...
  • Page 99 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Ref. Part No. Part Name & Remarks Ref. Part No. Part Name & Remarks Description Description P56101 K1KB10A00124 CONNECTOR(10P) VA56109 EZJZ0V80008B FILTER P56102 K1FA119E0004 JACK,HDMI...
  • Page 100 DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB Ref. Part No. Part Name & Remarks Description 29-2 RKF0786C-K TRAY DOOR 29-3 RYF0814C-K FL WINDOW ASS’Y EG,EC,EC1 29-3 RYF0814D-K FL WINDOW ASS’Y 29-4 RMZ0911...

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