Read Sharp DV-720H (serv.man5) Service Manual online
1
DV-720S/DV-720S(K)
DV-720H
DV-720H
S80H1DV-720S/
SERVICE MANUAL
MODELS
Page
1. IMPORTANT SAFEGUARDS AND PRECAUTIONS ......................................................................... 2
2. FEATURES ........................................................................................................................................ 3
3. SPECIFICATIONS ............................................................................................................................. 3
4. PART NAMES .................................................................................................................................... 4
5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME ................................................................ 6
6. DISASSEMBLY AND REPLACEMENT OF MAIN PARTS ................................................................. 7
7. OPERATION OF PICKUP .................................................................................................................. 9
8. TEST MODE .................................................................................................................................... 10
9. TROUBLESHOOTING ..................................................................................................................... 13
2. FEATURES ........................................................................................................................................ 3
3. SPECIFICATIONS ............................................................................................................................. 3
4. PART NAMES .................................................................................................................................... 4
5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME ................................................................ 6
6. DISASSEMBLY AND REPLACEMENT OF MAIN PARTS ................................................................. 7
7. OPERATION OF PICKUP .................................................................................................................. 9
8. TEST MODE .................................................................................................................................... 10
9. TROUBLESHOOTING ..................................................................................................................... 13
10. IC FUNCTION LIST .......................................................................................................................... 17
11. BLOCK DIAGRAMS ......................................................................................................................... 38
12. SCHEMATIC DIAGRAMS ................................................................................................................ 44
13. PRINTED WIRING BOARD ASSEMBLIES ...................................................................................... 56
14. SEMICONDUCTOR LEAD IDENTIFICATION ................................................................................. 68
15. REPLACEMENT PARTS LIST ......................................................................................................... 69
16. PACKING OF THE SET ................................................................................................................... 82
11. BLOCK DIAGRAMS ......................................................................................................................... 38
12. SCHEMATIC DIAGRAMS ................................................................................................................ 44
13. PRINTED WIRING BOARD ASSEMBLIES ...................................................................................... 56
14. SEMICONDUCTOR LEAD IDENTIFICATION ................................................................................. 68
15. REPLACEMENT PARTS LIST ......................................................................................................... 69
16. PACKING OF THE SET ................................................................................................................... 82
CONTENTS
In the interests of user-safety (Required by safety regula-
tions in some countries) the set should be restored to its
original condition and only parts identical to those specified
be used.
tions in some countries) the set should be restored to its
original condition and only parts identical to those specified
be used.
SERVICE MANUAL
DVD VIDEO PLAYER
MODELS DV-720S/720S(K)/720H
DVD VIDEO PLAYER
SHARP CORPORATION
DV-720S
DV-720S(K)
DV-720H
2
NTSC/PAL
OPERATE
OPEN/CLOSE
PLAY
STILL/PAUSE
STOP
SKIP
STANDBY
FWD
REV
Display
