Sharp VC-S101U Service Manual

1. GENERAL INFORMATION .............................. 5
1-1 FEATURES .................................................5
1-2 SPECIFICATIONS ..................................... 5
1-3 LOCATION OF MAJOR COMPONENTS
AND CONTROL ......................................... 6
2. DISASSEMBLY AND REASSEMBLY .............. 7
2-1 DISASSEMBLY OF MAJOR BLOCKS ....... 7
2-2 DISASSEMBLY OF MECHANISM
AND MAIN PWB ASSEMBLY .................... 8
2-3 CARES WHEN REASSEMBLING .............. 9
3. FUNCTION OF MAJOR MECHANICAL PARTS
TOP VIEW ....................................................... 10
BOTTOM VIEW ...............................................11
4. ADJUSTMENT, REPLACEMENT AND
ASSEMBLY OF MECHANICAL UNITS .......... 12
5. ELECTRICAL ADJUSTMENT ........................ 31
5-1 ADJUSTMENT OF HEAD SWITCHING
POINT ....................................................... 32
5-2 ADJUSTMENT OF SLOW TRACKING
PRESET .................................................... 32
5-3 ADJUSTMENT OF FV (False Vertical
Sync) OF STILL PICTURE ...................... 32
5-4 CHECKING OF OFF TRACK ................ 33
5-5 CHECKING OF E-E LEVEL ................... 33
5-6 ADJUSTMENT OF VCO .......................... 33
5-7 CHECKING OF SUB EMPHASIS LEVEL 33
SHARP CORPORATION
SERVICE MANUAL
MODEL
In the interests of user-safety (Required by safety regulations in some
countries) the set should be restored to its original condition and only parts
identical to those specified should be used.
CONTENTS
Page
5-8 S-VHS / S-VHS ET / VHS WHITE
CLIP LEVEL ADJUSTMENT ................... 34
5-9 S-VHS / S-VHS ET / VHS FM CARRIER/
DEVIATION ADJUSTMENT ..................... 34
5-10 S-VHS / S-VHS ET / VHS REC CHROMA
CURRENT ADJUSTMENT ....................... 35
5-11 S-VHS / S-VHS ET / VHS REC FM
CURRENT ADJUSTMENT ....................... 35
5-12 S-VHS / S-VHS ET / VHS PLAYBACK
LEVEL ADJUSTMENT ............................. 36
5-13 ADJUSTMENT OF SIF-INPUT LEVEL .... 36
5-14 ADJUSTMENT OF FILTER ...................... 36
5-15 ADJUSTMENT OF STEREO VCO ........... 37
5-16 ADJUSTMENT OF STEREO
SEPARATION ...........................................37
6. MECHANISM OPERATION FLOWCHART
AND TROUBLESHOOTING GUIDE .............. 38
7. TROUBLESHOOTING ................................... 44
8. BLOCK DIAGRAM ..........................................58
9. CIRCUIT DIAGRAM AND PWB FOIL
PATTERN ....................................................... 66
10.REPLACEMENT PARTS LIST ....................... 91
11.EXPLODED VIEWS ..................................... 105
12.PACKING OF THE SET ............................... 109
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
1
VIDEO CASSETTE RECORDER
VC-S101U
VC-S101U
S69I8VC-S101U
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