Table Of Contents - Panasonic DMR-E75VP Service Manual

CONTENTS
1 Safety precautions
1.1. General guidelines
1.2. Caution for fuse replacement
2 Prevention of Electrostatic Discharge (ESD) to Electrostatic
Sensitive (ES) Devices
3 Precaution of Laser Diode
4 How to replace the Lithium Battery
5 Handling the Lead-free Solder
5.1. About lead free solder (PbF)
6 Each Buttons
7 New Features
7.1. Function of Power Circuit (IC11150)
8 (DVD) Taking out the Disc from RAM-Drive Unit when the
Disc cannot be ejected by OPEN/CLOSE button
8.1. (DVD) Forcible Disc Eject
8.2. (DVD) When the Forcible Disc Eject can not be done.
9 (VHS) Removing Cassette Tape manually
9.1. (VHS) Removal by compulsory unloading.
9.2. (VHS) Removal by manual operation by rotating the
Loading Motor with the batteries.
9.3. (VHS) Take out Cassette Tapemanually after removing the
mechanism
10 (DVD) Service Explorer
11 (DVD) Self-Diagnosis and Special Mode Setting
11.1. (DVD) Self-Diagnosis Functions
11.2. (DVD) Special Modes Setting
11.3. (DVD) Service Modes
12 (VHS) Self-Diagnosis and Special Mode Setting
12.1. (VHS) Self-Diagnosis Functions
12.2. (VHS) Special Modes Setting
12.3. (VHS) Service Modes
12.4. (VHS) Self-Diagnosis History Memory Function
12.5. (VHS) Description of Self Diagnosis Memory
13 Assembling and Disassembling
13.1. Disassembly Flow Chart
13.2. P.C.B. Positions
13.3. Cation with inserting cassette tape when disassembling
the unit
13.4. Top Case
13.5. Front Panel
13.6. Front Jack P.C.B. & FL Drive P.C.B.
13.7. Rear Panel & Fan Motor
13.8. I/O P.C.B.
13.9. VTR Mechanism Unit
13.10. Main P.C.B.
13.11. DVD-RAM Drive
13.12. Digital P.C.B.
13.13. Power & Digital I/F P.C.B.
14 Service Fixture and Tools
15 Service Positions
15.1. Checking and Repairing of Power & Digital I/F P.C.B.
Page
5 15.2. Checking and Repairing of Main P.C.B.
5 15.3. Checking and Repairing of Digital P.C.B.
5 15.4. Checking and Repairing of I/O P.C.B.
15.5. Checking and DVD-RAM Drive
6 16 (DVD) Caution after parts replacing parts
7 16.1. (DVD) After replacing the RAM Drive with new one
8 16.2. (DVD) When the unit does not operate normally after
8 replacing the Timer Microprocessor with new one
8 17 (VHS) Caution after replacing parts
9 17.1. (VHS) Adjustment Procedures after replacing DD Cylinder,
12 VHS Microprocessor or Main P.C.B.
12 17.2. (VHS) X-VALUE & LINEARITY (P2 and P3 Posts)
ADJUSTMENT
15 17.3. (VHS) Caution after replacing VHS Microprocessor
15 (IC6001)
15 18 (DVD) Standard Inspection Specifications after Making
16 Repairs
16 19 Voltage and Waveform Chart
19.1. Power & Digital I/F P.C.B.
16 19.2. Main P.C.B.
19.3. I/O P.C.B.
17 19.4. FL Drive P.C.B.
18 19.5. Front Jack P.C.B.
21 19.6. P9001 Connector
21 19.7. Waveform
22 20 Abbreviations
24 20.1. DVD
29 20.2. VHS
29 21 Block Diagram
30 21.1. Power Supply Block Diagram
30 21.2. Digital I/F Regulator Block Diagram
31 21.3. Digital I/F Timer Block Diagram
33 21.4. System Control, Servo & Timer Block Diagram
35 21.5. Audio Block Diagram
35 21.6. Video Block Diagram
36 21.7. Digital Block Diagram
21.8. Digital Block IC Pin Terminal Chart
36 22 Schematic Diagram
37 22.1. Interconnection Schematic Diagram
37 22.2. Power Supply Section (Power & Digital I/F P.C.B.(1/2))
38 Schematic Diagram (P)
38 22.3. Digital I/F Section (Power & Digital I/F P.C.B.(2/2))
39 Schematic Diagram (D)
39 22.4. Syscon/Servo/Timer Section (Main P.C.B.(1/3)) Schematic
40 Diagram (S)
40 22.5. Hi-Fi Audio Section (Main P.C.B.(2/3)) Schematic Diagram
41 (A)
42 22.6. Video Section (Main P.C.B.(3/3)) Schematic Diagram (V)
43
44 22.7. Glue Net Section (Digital P.C.B.(1/4)) Schematic Diagram
44 (GN)
3
DMR-E75VP
Page
45
46
47
48
49
49
49
50
50
51
53
53
54
54
55
57
58
58
58
59
61
61
63
67
67
68
69
70
71
72
74
75
77
77
79
80
83
85
87
90