Hitachi DV-PF7E - Default Chapter; Table of Contents

CONTENTS
1 CAUTIONS FOR SAFETY IN PERFORMING
REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1-1 LASER BEAM SAFETY PRECAUTIONS . . . . . . . 1-1
1-2 IMPORTANT SAFETY PRECAUTIONS . . . . . . . . 1-2
1-2-1 Product Safety Notice . . . . . . . . . . . . . . . . . . . . 1-2
1-2-2 Precautions during Servicing . . . . . . . . . . . . . . 1-2
1-2-3 Safety Check after Servicing . . . . . . . . . . . . . . . 1-3
1-3 STANDARD NOTES FOR SERVICING . . . . . . . . . 1-4
1-3-1 Circuit Board Indications . . . . . . . . . . . . . . . . . . 1-4
1-3-2 Instructions for Connectors . . . . . . . . . . . . . . . . 1-4
1-3-3 Pb (Lead) Free Solder. . . . . . . . . . . . . . . . . . . . 1-4
1-3-4 Instructions for Handling Semi-conductors . . . . 1-4
2 GENERAL INFORMATION . . . . . . . . . . . . . . . 2-1
2-1 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 COMPARISON OF MODELS. . . . . . . . . . . . . . . . . 2-2
2-2-1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-2-2 VCR Section . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-2-3 DVD Section . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3 COMPARISON OF MAIN CONTROL ICS . . . . . . . 2-4
2-4 LIST OF ABBREVIATIONS AND TERMS
FOR DVD PLAYER . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2-5 FUNCTION INDICATOR SYMBOLS . . . . . . . . . . . 2-6
2-6 OPERATING CONTROLS AND FUNCTIONS. . . . 2-7
3 MAINTENANCE AND INSPECTION. . . . . . . . 3-1
3-1 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 3-1
3-1-1 Power Supply Section . . . . . . . . . . . . . . . . . . . . 3-1
3-1-2 DVD Section . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-1-3 VCR Section . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3-2 FIRMWARE RENEWAL MODE . . . . . . . . . . . . . . 3-19
3-2-1 How to Update the Firmware Version . . . . . . . 3-19
3-2-2 How to Verify the Firmware Version . . . . . . . . 3-20
3-3 STANDARD MAINTENANCE. . . . . . . . . . . . . . . . 3-21
3-3-1 Service Schedule of Components. . . . . . . . . . 3-21
3-3-2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
4 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-1 CABINET DISASSEMBLY INSTRUCTIONS . . . . . 4-1
4-1-1 Disassembly Flowchart . . . . . . . . . . . . . . . . . . . 4-1
4-1-2 Disassembly Method. . . . . . . . . . . . . . . . . . . . . 4-1
4-1-3 How to Eject Manualy . . . . . . . . . . . . . . . . . . . . 4-5
4-2 DISASSEMBLY/ASSEMBLY PROCEDURES
OF DECK MECHANISM . . . . . . . . . . . . . . . . . . . . 4-6
4-3 ALIGNMENT PROCEDURES OF MECHANISM. 4-15
5 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-1 PREPARATION FOR SERVICING. . . . . . . . . . . . . 5-1
5-1-1 How to Enter the Service Mode. . . . . . . . . . . . . 5-1
5-2 FIXTURE AND TAPE FOR ADJUSTMENT . . . . . . 5-2
5-2-1 How To Use The Fixtures And Tape . . . . . . . . . 5-2
5-3 ELECTRICAL ADJUSTMENT INSTRUCTIONS . . 5-3
5-3-1 Test Equipment Required . . . . . . . . . . . . . . . . . 5-3
5-3-2 Head Switching Position Adjustment. . . . . . . . . 5-3
5-4 MECHANICAL ALIGNMENT PROCEDURES . . . . 5-4
5-4-1 Service Information . . . . . . . . . . . . . . . . . . . . . . 5-4
5-4-2 Tape Interchangeability Alignment . . . . . . . . . . 5-5
1-A. Preliminary/Final Checking and
Alignment of Tape Path . . . . . . . . . . . . . . . . . . . 5-6
1-B. X Value Alignment. . . . . . . . . . . . . . . . . . . . . . . 5-6
1-C. Checking/Adjustment of Envelope Waveform . . 5-7
1-D. Azimuth Alignment of
Audio/Control/Erase Head. . . . . . . . . . . . . . . . . 5-8
1-E. Checking and Alignment of
Tape Path during reversing . . . . . . . . . . . . . . . . 5-8
6 EXPLODEDS VIEWS AND PARTS LIST . . . . 6-1
6-1 EXPLODED VIEWS. . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-1-1 Cabinet Section . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-1-2 Deck Mechanism View 1 Section . . . . . . . . . . . 6-2
6-1-3 Deck Mechanism View 2 Section . . . . . . . . . . . 6-2
6-1-4 Deck Mechanism View 3 Section . . . . . . . . . . . 6-3
6-2 REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . 6-4
6-2-1 Mechanical Parts List . . . . . . . . . . . . . . . . . . . . 6-4
6-2-2 Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . 6-6
7 APPENDIX. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7-1 SYSTEM CONTROL TIMING CHARTS . . . . . . . . 7-1
7-2 IC PIN FUNCTION DESCRIPTIONS. . . . . . . . . . . 7-7
7-3 LEAD IDENTIFICATIONS . . . . . . . . . . . . . . . . . . 7-10
S SCHEMATIC, WIRING DIAGRAMS
S-1 Schematic Diagrams/CBA’s and Test Points . . . . . S-1
S-2 Wiring Diagrams < VCR Section >. . . . . . . . . . . . . S-3
S-3 Wiring Diagrams < DVD Section > . . . . . . . . . . . . . S-4
S-4 Main 1/9 Schematic Diagram. . . . . . . . . . . . . . . . . S-5
S-5 Main 2/9, Sensor & Power SW
Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . S-6
S-6 Main 3/9 Schematic Diagram. . . . . . . . . . . . . . . . . S-7
S-7 Main 4/9 Schematic Diagram. . . . . . . . . . . . . . . . . S-8
S-8 Main 5/9 Schematic Diagram. . . . . . . . . . . . . . . . . S-9
S-9 Main 6/9 Schematic Diagram. . . . . . . . . . . . . . . . S-10
S-10 Main 7/9 & DVD Open/Close
Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . S-11
S-11Main 8/9 Schematic Diagram . . . . . . . . . . . . . . . . S-12
S-12Main 9/9 Schematic Diagram . . . . . . . . . . . . . . . . S-13
S-13Power Supply & Junction Schematic Diagrams . . S-14
S-14Jack-A Schematic Diagram . . . . . . . . . . . . . . . . . S-15
S-15AFV Schematic Diagram . . . . . . . . . . . . . . . . . . . S-16
S-16DVD Main 1/3 Schematic Diagram. . . . . . . . . . . . S-17
S-17DVD Main 2/3 Schematic Diagram. . . . . . . . . . . . S-18
S-18IC101 Voltage Chart. . . . . . . . . . . . . . . . . . . . . . . S-19
S-19DVD Main 3/3 Schematic Diagram. . . . . . . . . . . . S-20
S-20Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-21
C CIRCUIT BOARD DIAGRAMS
C-1 Main CBA Top View & Sensor CBA Top View . . . . C-1
C-2 Main CBA Bottom View . . . . . . . . . . . . . . . . . . . . . C-2
C-3 Power SW CBA Top/Bottom View &
DVD Open/Close CBA Top/Bottom View . . . . . . . . C-3
C-4 Power Supply CBA Top/Bottom View &
Junction CBA Top/Bottom View . . . . . . . . . . . . . . . C-4
C-5 Jack-A CBA Top/Bottom View,
Jack-B CBA Top/Bottom View
&
AFV CBA Top/Bottom View . . . . . . . . . . . . . . . . . . C-
5
B BLOCK DIAGRAMS
B-1 Servo/System Control Block Diagram . . . . . . . . . . B-1
B-2 Video Block Diagram . . . . . . . . . . . . . . . . . . . . . . . B-2
B-3 Audio Block Diagram . . . . . . . . . . . . . . . . . . . . . . . B-3
B-4 Hi-Fi Audio Block Diagram . . . . . . . . . . . . . . . . . . . B-4
B-5 Power Supply Block Diagram . . . . . . . . . . . . . . . . . B-5
B-6 DVD System Control/Servo Block Diagram . . . . . . B-6
B-7 Digital Signal Process Block Diagram . . . . . . . . . . B-7
B-8 DVD Video / Audio Block Diagram . . . . . . . . . . . . . B-8
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