Sharp VC-H992U Service Manual

1. GENERAL INFORMATION .............................. 4
1-1 FEATURES ................................................. 4
1-2 SPECIFICATIONS ..................................... 4
1-3 LOCATION OF MAJOR COMPONENTS
AND CONTROL ......................................... 5
2. DISASSEMBLY AND REASSEMBLY .............. 6
2-1 DISASSEMBLY OF MAJOR BLOCKS ....... 6
2-2 DISASSEMBLING THE MECHANISM/
MAIN PWB ASSEMBLY ............................. 7
2-3 CARES WHEN REASSEMBLING .............. 8
3. FUNCTION OF MAJOR MECHANICAL
PARTS .............................................................. 9
4. ADJUSTMENT, REPLACEMENT AND
ASSEMBLY OF MECHANICAL UNITS .......... 11
4-1 MECHANISM CONFIRMATION
ADJUSTMENT JIG .................................. 11
5. ELECTRICAL ADJUSTMENT ........................ 30
5-1 ADJUSTMENT OF HEAD SWITCHING
POINT ....................................................... 31
SHARP CORPORATION
SERVICE MANUAL
MODELS
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 be used.
CONTENTS
Page
6. MECHANISM OPERATION FLOWCHART
7. TROUBLESHOOTING ................................... 39
8. BLOCK DIAGRAM ..........................................50
9. SCHEMATIC DIAGRAM AND PWB FOIL
10.PARTS LIST .................................................... 69
11.EXPLODED VIEW OF MECHANICAL
12.PACKING OF THE SET ................................. 81
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-H992U
VC-H992U ( A )
5-2 ADJUSTMENT OF FV (False Vertical Sync)
OF STILL PICTURE ................................. 31
5-3 CHECKING OF OFF TRACK ................... 31
5-4 ADJUSTMENT OF SIF-INPUT LEVEL .... 32
5-5 ADJUSTMENT OF STEREO
SEPARATION ...........................................32
AND TROUBLESHOOTING GUIDE .............. 33
PATTERN ....................................................... 56
PARTS ............................................................ 77
VC-H992U/H992U(A)...Models for U.S.A.
VC-H992U VC-H992U
VC-H992U(A) VC-H992U(A)
SY8B1VC-H992U
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