Sharp VC-A598U Service Manual

(VC-A598U/H995U/H996U/H997U)
(VC-H9977U/H998U)
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 DISASSEMBLING THE MECHANISM/
MAIN PWB ASSEMBLY ............................. 8
2-3 CARES WHEN REASSEMBLING .............. 9
3. FUNCTION OF MAJOR MECHANICAL
PARTS ............................................................ 10
4. ADJUSTMENT, REPLACEMENT AND
ASSEMBLY OF MECHANICAL UNITS .......... 12
4-1 MECHANISM CONFIRMATION
ADJUSTMENT JIG .................................. 12
5. ELECTRICAL ADJUSTMENT ........................ 31
5-1 ADJUSTMENT OF HEAD SWITCHING
POINT ....................................................... 32
SHARP CORPORATION
SERVICE MANUAL
VC-A598U/H995U/
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 ................................... 40
8. BLOCK DIAGRAM ..........................................51
9. SCHEMATIC DIAGRAM AND PWB FOIL
10.PARTS LIST .................................................... 75
11.EXPLODED VIEW OF MECHANICAL
12.PACKING OF THE SET ................................. 89
VC-A598U/H995U/H996U/H998U ..... Models for U.S.A.
VC-H997U/H9977U/H998U ............... Models for CANADA
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
H996U/H997U/
H9977U/H998U
5-2 ADJUSTMENT OF FV (False Vertical Sync)
OF STILL PICTURE ................................. 32
5-3 CHECKING OF OFF TRACK ................... 32
5-4 ADJUSTMENT OF SIF-INPUT LEVEL .... 33
5-5 ADJUSTMENT OF STEREO
SEPARATION ...........................................33
INITIAL JUMPER STTING METHOD ............. 33
AND TROUBLESHOOTING GUIDE .............. 34
PATTERN ....................................................... 59
PARTS ............................................................ 84
VC-A598U/H995U/H996U
-H997U/H9977U/H998U
S39D6VC-A598U
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