1
DV-NC55U/C/M
S61U2DV-NC55U
SERVICE MANUAL
Page
1. IMPORTANT SERVICE NOTES ........................................................................................................ 2
2. FEATURES ........................................................................................................................................ 4
3. SPECIFICATIONS ............................................................................................................................. 4
4. PART NAMES .................................................................................................................................... 6
5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME ............................................................... 9
6. DISASSEMBLY METHOD ............................................................................................................... 10
7. OPERATION OF PICKUP ............................................................................................................... 14
8. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS ............................ 15
9. TEST MODE .................................................................................................................................... 38
10. TROUBLESHOOTING ..................................................................................................................... 41
11. IC FUNCTION LIST ......................................................................................................................... 52
12. BLOCK DIAGRAMS ......................................................................................................................... 76
13. SCHEMATIC DIAGRAMS ................................................................................................................ 84
14. PRINTED WIRING BOARD ASSEMBLIES ................................................................................... 102
15. REPLACEMENT PARTS LIST ...................................................................................................... 123
16. PACKING OF THE SET ................................................................................................................. 142
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.
MODELS
DV-NC55U
DV-NC55C
DV-NC55M
SERVICE MANUAL
VCR/DVD COMBINATION MODEL
MODELS DV-NC55U/C/M
VCR/DVD COMBINATION MODEL
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
REW
PLAY
STANDBY
CH(TRACKING)
/
POWER
EJECT/ STOP
PLAY STOP
OPEN/
CLOSE
VCR DVD
(AV 1 )
L(MONO)-AUDIO-R
AV 2 IN VDEO
QSURROUND