Panasonic DMR-E53EG, DMR-E55EB, DMR-E55E Manuale utente

Service Manual

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ORDER NO.DSD0403001C8

DVD Video Recorder

●DMR-E53EG

DMR-E55EB

DMR-E55EG

DMR-E55EBL

DMR-E55EP

Colour

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

(S).......................Silver Type

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Table Of Contents

COVER

1 Safety precautions

1.1 General guidelines

1.1.1 Leakage current cold check

1.1.2 Leakage current hot check (See Figure 1 .)

2 Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices

3 Precaution of Laser Diode

4 Handling the Lead-free Solder

4.1 About lead free solder (PbF)

5 Each Buttons

6 Taking out the Disc from RAM-Drive Unit when the Disc cannot be ejected by OPEN / CLOSE

button

6.1 Forcible Disc Eject

6.1.1 When the power can be turned off.

6.1.2 When the power can not be turned off.

6.2 When the Forcible Disc Eject can not be done.

7 Service Explorer

8 Self-Diagnosis and Special Mode Setting

8.1 Self-Diagnosis Functions

8.2 Special Modes Setting

8.3 Service Modes

9 Assembling and Disassembling

9.1 Disassembly Flow Chart

9.2 P.C.B. Positions

9.3 Top Case

9.4 Digital P.C.B.

9.5 Front Panel

9.6 Front (R) P.C.B.

9.7 DVD-RAM Drive

9.8 Rear Panel

9.8.1 Only Fan Motor

9.9 Main P.C.B.

9.10 Power P.C.B.

9.11 The Scart P.C.B.

9.12 VIF Decoder P.C.B. and Nicam Decoder P.C.B.

10 Service Fixture and Tools

11 Service Positions

11.1 Checking and Repairing of Power P.C.B.

11.2 Checking and Repairing of Main P.C.B.

11.3 Checking and Repairing of Digital P.C.B.

11.4 Checking and Repairing of DVD-RAM Drive

12 Adjustment Procedures

12.1 After replacing the RAM Drive with new one

12.2 When the unit does not operate normally after replacing the Timer Microprocessor with new one

13 Standard Inspection Specifications after Making Repairs

14 Voltage and Waveform Chart

14.1 Power P.C.B.

14.2 Main P.C.B.

14.3 Nicam Decoder P.C.B.

14.4 Scart P.C.B.

14.5 Front (R) P.C.B.

14.6 P9001 Connector

14.7 Waveform Chart

15 Abbreviations

16 Block Diagram

16.1 Power Supply Block Diagram

16.2 Analog Video Block Diagram

16.3 Analog Audio Block Diagram

16.4 Timer Block Diagram

16.5 Digital Block Diagram

16.6 Digital Block IC Pin Terminal Chart (TC1-18)

17 Schematic Diagram

17.1 Interconnection Schematic Diagram

17.2 Main Power Supply Schematic Diagram

17.3 Sub Power Supply Section (Main P.C.B. (1 / 5)) Schematic Diagram (P)

17.4 Main Net Section (Main P.C.B. (2 / 5)) Schematic Diagram (M)

17.5 Video I / O Section (Main P.C.B. (3 / 5)) Schematic Diagram (V)

17.6 Audio Main Section (Main P.C.B. (4 / 5)) Schematic Diagram (A)

17.7 Timer Section (Main P.C.B. (5 / 5)) Schematic Diagram (T)

17.8 Glue Net Section (Digital P.C.B. (1 / 4)) Schematic Diagram (GN)

17.9 AV Encoder / Real Time Stream Control (RTSC) Section (Digital P.C.B. (2 / 4)) Schematic

Diagram (EN)

17.10 AV Decoder / Main CPU Section (Digital P.C.B. (3 / 4)) Schematic Diagram (MC)

17.11 Audio I / O Section (Digital P.C.B. (4 / 4)) Schematic Diagram (AI)

17.12 VIF Decoder Schematic Diagram (For DMR-E55EB / EBL / EP)

17.13 VIF Decoder Schematic Diagram (For DMR-E53EG and DMR-E55EG)

17.14 Nicam Decoder Schematic Diagram

17.15 Scart Schematic Diagram

17.16 Front (R) Schematic Diagram

18 Print Circuit Board

18.1 Power P.C.B.

18.2 Main P.C.B.

18.2.1 Main P.C.B. (1 / 4 Section)

18.2.2 Main P.C.B. (2 / 4 Section)

18.2.3 Main P.C.B. (3 / 4 Section)

18.2.4 Main P.C.B. (4 / 4 Section)

18.2.5 Main P.C.B. Address Information

18.3 Digital P.C.B.

18.3.1 Digital P.C.B. (Component Side)

18.3.2 Digital P.C.B. (Foil Side)

18.3.3 Digital P.C.B. Address Information

18.4 VIF Decoder P.C.B. (For DMR-E55EB / EBL / EP)

18.5 VIF Decoder P.C.B. (For DMR-E53EG and DMR-E55EG)

18.6 Nicam Decoder P.C.B.

18.7 Scart P.C.B.

18.7.1 Scart P.C.B. (Section 1 / 2)

18.7.2 Scart P.C.B. (Section 2 / 2)

18.8 Front (R) P.C.B.

19 Exploded Views

19.1 Casing Parts & Mechanism Section 1

19.2 Casing Parts & Mechanism Section 2

19.3 Packing & Accessories Section

20 Replacement Parts List

21 Schematic Diagram for printing with A4

1 Safety precautions

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1.1 General guidelines

1.1.1 Leakage current cold check

1.1.2 Leakage current hot check (See Figure 1 .)

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