MODELS: WT-46809 / WS-55809 / WS-55819 / WS-65809 / WS-65819
INTRODUCTION ................................................................................................................................ 5
PRODUCT SAFETY NOTICE ............................................................................................................. 5
SAFETY PRECAUTIONS ................................................................................................................... 6
DISASSEMBLY
WT-46809 .............................................................................................................................. 7
WS-55809 / WS-65809 .......................................................................................................... 8
WS-55819 / WS-65819 .......................................................................................................... 9
WT-46809 ............................................................................................................................ 10
WS-55809 / WS-55819 / WS-65809 / WS-65819 ................................................................. 11
WT-46809 / WS-55809 / WS-65809 ..................................................................................... 12
WS-55819 / WS-65819 ........................................................................................................ 13
Removal & Installation ...................................................................................... 15
SERVICING PCBs
Chassis Removal .......................................................................................................................... 16
PCB Locations .............................................................................................................................. 16
Main Components Location ........................................................................................................... 16
CRT Removal ................................................................................................................................ 17
CRT Installation ............................................................................................................................ 18
Test Equipment ............................................................................................................................. 20
Initial Setup ................................................................................................................................... 21
LED Indicator Diagnostics ............................................................................................................. 22
Circuit Adjustment Mode ............................................................................................................... 22
E2PROM Replacement ................................................................................................................. 27
Adjustment Items List ................................................................................................................... 27
Adjustment Test Points ................................................................................................................. 30
Adjustment Procedures ................................................................................................................ 31
Audio Circuit ........................................................................................................................ 31
High Voltage Regulation ....................................................................................................... 32
Main/Sub Y Level ................................................................................................................. 32
CRT Cutoff ........................................................................................................................... 34
White Balance (NTSC) ......................................................................................................... 34
White Balance (HD) ............................................................................................................. 35
Cb, Cr Offset ........................................................................................................................ 35
Black Level .......................................................................................................................... 36
Sub Contrast ....................................................................................................................... 36
CONTENTS
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