1 SAFETY PRECAUTIONS 3
2 PREVENTION OF ELECTRO-STATIC DISCHARGE (ESD) TO
ELECTROSTATICALLY SENSITIVE (ES) DEVICES
4
3 OPERATION GUIDE
5
4 SERVICE NOTES (PLEASE READ)
11
4.1. SERVICE NOTES
11
4.2. IC, TRANSISTOR AND CHIP PART INFORMATION
20
5 DISASSEMBLY/ASSEMBLY PROCEDURES
21
5.1. CABINET SECTION
21
5.2. MECHANISM SECTION
24
5.3. CASSETTE UP ASS'Y SECTION
36
6 ADJUSTMENT PROCEDURES
38
6.1. SERVICE FIXTURES AND TOOLS
38
6.2. MECHANICAL ADJUSTMENT
39
6.3. ELECTRICAL ADJUSTMENT
44
6.4. TEST POINTS AND CONTROL LOCATION
46
7 SCHEMATIC DIAGRAMS
47
7.1. SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT
NOTES
47
7.2. MAIN I (SYSTEM CONTROL/SERVO) SCHEMATIC
DIAGRAM
48
7.3. MAIN II (SIGNAL PROCESS/AUDIO) SCHEMATIC
DIAGRAM
49
7.4. MAIN III (POWER SUPPLY) SCHEMATIC DIAGRAM
51
7.5. MAIN IV (Hi-Fi) SCHEMATIC DIAGRAM (E, F)
52
7.6. MAIN V (OPERATION) SCHEMATIC DIAGRAM
54
7.7. MAIN VI (CYLINDER DRIVE/ADVANCE) SCHEMATIC
DIAGRAM
55
7.8. HEAD AMP (A) / AUDIO CONTROL HEAD SCHEMATIC
DIAGRAM
56
7.9. HEAD AMP (B, C, D) / AUDIO CONTROL HEAD
SCHEMATIC DIAGRAM
57
7.10. Hi-Fi AUDIO/VIDEO HEAD AMP (E, F) / AUDIO
CONTROL HEAD SCHEMATIC DIAGRAM
58
7.11. CAPSTAN STATOR SCHEMATIC DIAGRAM
59
7.12. INTERCONNECTION SCHEMATIC DIAGRAM
60
7.13. SIGNAL WAVEFORM
61
7.14. VOLTAGE CHART
63
8 CIRCUIT BOARD LAYOUT
67
8.1. MAIN C.B.A. (A, C)
67
8.2. MAIN C.B.A. (B, D, E, F)
68
8.3. HEAD AMP C.B.A. (A, B, C, D) / Hi-Fi AUDIO/VIDEO
HEAD AMP C.B.A. (E, F) / CAPSTAN STATOR / AUDIO
CONTROL HEAD P.C.B.
69
9 BLOCK DIAGRAMS
71
9.1. POWER SUPPLY BLOCK DIAGRAM
71
9.2. VIDEO SIGNAL PATH BLOCK DIAGRAM
72
9.3. AUDIO SIGNAL PATH BLOCK DIAGRAM
73
9.4. Hi-Fi AUDIO SIGNAL PATH BLOCK DIAGRAM
74
9.5. SYSTEM CONTROL BLOCK DIAGRAM
75
9.6. SERVO BLOCK DIAGRAM
76
9.7. OPERATION BLOCK DIAGRAM
77
10 EXPLODED VIEWS
79
10.1. MECHANISM (TOP) SECTION
79
10.2. MECHANISM (BOTTOM) SECTION
80
10.3. CASSETTE UP COMPARTMENT SECTION
81
10.4. CHASSIS FRAME AND CASING PARTS SECTION
82
10.5. PACKING PARTS AND ACCESSORIES SECTION
83
11 REPLACEMENT PARTS LISTS
84
11.1. REPLACEMENT NOTES
84
11.2. MECHANICAL REPLACEMENT PARTS LIST
86
11.3. ELECTRICAL REPLACEMENT PARTS LIST
87
CONTENTS
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PVQ-V200 / PV-V4020 / VHQ-400 / VHQ-40M / PV-V4520 / PV-V4540
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