Table Of Contents - Panasonic DMR-EH50P Service Manual

CONTENTS
1 Specifications
2 Safety precautions
2.1. General guidelines
2.2. Caution for fuse replacement
3 Prevention of Electrostatic Discharge (ESD) to Electrostatic
Sensitive (ES) Devices
4 Precaution of Laser Diode
5 How to replace the Lithium Battery
6 Handling the Lead-free Solder
6.1. About lead free solder (PbF)
7 Each Button
8 New Feature
8.1. Quick start function(REC)
9 Taking out the Disc from RAM-Drive Unit when the Disc
cannot be ejected by OPEN/CLOSE button
9.1. Forcible Disc Eject
9.2. When the Forcible Disc Eject can not be done.
10 Service Explorer
11 Self-Diagnosis and Special Mode Setting
11.1. Self-Diagnosis Functions
11.2. Special Modes Setting
11.3. Service Modes
12 Assembling and Disassembling
12.1. Disassembly Flow Chart
12.2. P.C.B. Positions
12.3. Top Cover
12.4. Front Panel
12.5. SD Card P.C.B.
12.6. Digital P.C.B.
12.7. DVD-RAM Drive
12.8. HDD
12.9. LED P.C.B.
12.10. Power P.C.B.
12.11. Rear Panel
12.12. Front (L) P.C.B.
12.13. Main P.C.B.
13 Service Fixture and Tools
14 Service Positions
14.1. Checking and Repairing of Power P.C.B.
14.2. Checking and Repairing of Digital P.C.B.
14.3. Checking and Repairing of Main P.C.B.
14.4. Checking and Repairing of DVD-RAM Drive
14.5. Checking and Repairing of HDD
15 Caution after replacing parts
15.1. After replacing the RAM Drive with new one
Page
4 15.2. When the unit does not operate normally after replacing
5 the Timer Microprocessor or Main P.C.B.
5 16 Standard Inspection Specifications after Making Repairs
5 17 Voltage and Waveform Chart
17.1. Power P.C.B.
6 17.2. Main P.C.B.
7 17.3. Tuner P.C.B.
8 17.4. LED P.C.B.
8 17.5. P9001 Connector
8 17.6. Waveform Chart
9 18 Abbreviations
11 19 Block Diagram
11 19.1. Power Supply Block Diagram
19.2. Analog Video Block Diagram
12 19.3. Analog Audio Block Diagram
12 19.4. Analog Timer Block Diagram
12 20 Schematic Diagram
13 20.1. Interconnection Schematic Diagram
16
16 20.2. Main Power Schematic Diagram
17 20.3. Sub Power Section (Main P.C.B. (1/6)) Schematic
Diagram (P)
19
23 20.4. Main Net Section (Main P.C.B. (2/6)) Schematic Diagram
(M)
23
23 20.5. Video I/O Section (Main P.C.B. (3/6)) Schematic Diagram
(V)
24
24 20.6. Audio Main Section (Main P.C.B. (4/6)) Schematic
24 Diagram (A)
24 20.7. Timer Section (Main P.C.B. (5/6)) Schematic Diagram (T)
25
25 20.8. UART/IR Section (Main P.C.B. (6/6)) Schematic Diagram
26 (U)
26 20.9. Tuner Pack Schematic Diagram
27 20.10. SD Card Schematic Diagram
27 20.11. LED Schematic Diagram
28 21 Print Circuit Board
29 21.1. Power P.C.B.
29 21.2. Main P.C.B.
29 21.3. Tuner P.C.B.
30 21.4. SD Card P.C.B.
31 21.5. LED P.C.B. , Front (L) P.C.B.
33 22 Exploded Views
34 22.1. Casing Parts & Mechanism Section
35 22.2. Packing & Accessories Section
35 23 Replacement Parts List
3
DMR-EH50 P / DMR-EH50 PC
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