Hitachi DV-P755U, Руководство по обслуживанию

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CONTENTS
1 CAUTION 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
2-3 COMPARISON OF MAIN CONTROL ICS . . . . . . . .2-3
2-4 LIST OF ABBREVIATIONS AND TERMS FOR DVD
PLAYER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2-5 OPERATING CONTROLS AND FUNCTIONS . . . . .2-5
3 MAINTENANCE AND INSPECTION . . . . . . . . . 3-1
3-1 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . .3-1
3-2 HOW TO INITIALIZE THE DVD PLAYER . . . . . . . . .3-7
3-3 FIRMWARE RENEWAL MODE . . . . . . . . . . . . . . . .3-8
3-3-1 How to Update the Firmware Version . . . . . . . . .3-8
3-3-2 How to Verify the Firmware Version. . . . . . . . . . .3-9
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 Manually . . . . . . . . . . . . . . . . . . . . .4-3
5 EXPLODED VIEW AND PARTS LIST . . . . . . . 5-1
5-1 EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5-2 REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . .5-2
5-2-1 Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . .5-2
5-2-2 Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . .5-3
6 APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6-1 SYSTEM CONTROL TIMING CHARTS . . . . . . . . . .6-1
6-2 IC PIN FUNCTION DESCRIPTIONS. . . . . . . . . . . . .6-2
6-3 LEAD IDENTIFICATIONS . . . . . . . . . . . . . . . . . . . . .6-3
S SCHEMATIC, WIRING DIAGRAMS . . . . . . . . . S-1
S-1 Schematic Diagrams / CBA’s and Test Points . . . . S-1
S-2 Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-3
S-3 DVD Main 1/3 Schematic Diagram . . . . . . . . . . . . . S-4
S-4 DVD Main 2/3 Schematic Diagram . . . . . . . . . . . . . S-5
S-5 IC101 Voltage Chart . . . . . . . . . . . . . . . . . . . . . . . . S-6
S-6 DVD Main 3/3 Schematic Diagram . . . . . . . . . . . . . S-7
S-7 AV 1/3 Schematic Diagram . . . . . . . . . . . . . . . . . . . S-8
S-8 AV 2/3 Schematic Diagram . . . . . . . . . . . . . . . . . . . S-9
S-9 AV 3/3 & Function Schematic Diagram . . . . . . . . . S-10
S-10 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-11
C CIRCUIT BOARD DIAGRAMS
C-1 AV CBA Top View . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
C-2 AV CBA Bottom View . . . . . . . . . . . . . . . . . . . . . . . C-2
C-3 Function CBA Top/Bottom View . . . . . . . . . . . . . . . C-3
B BLOCK DIAGRAMS
B-1 System Control/Servo Block Diagram . . . . . . . . . . . B-1
B-2 Digital Signal Process Block Diagram . . . . . . . . . . . B-2
B-3 Video/Audio Block Diagram. . . . . . . . . . . . . . . . . . . B-3
B-4 Power Supply Block Diagram . . . . . . . . . . . . . . . . . B-4