Mitsubishi Electric WD-Y57 Service Manual page 3

MODEL: WD-Y57 / WD-Y65 / WD-57732 / WD-65732 / WD-73732
INTRODUCTION ................................................................................................................................ 5
Dimensions, weight, power usage, etc. ........................................................................................... 5
PRODUCT SAFETY NOTICE ............................................................................................................. 5
SAFETY PRECAUTIONS ................................................................................................................. 6
DISASSEMBLY .................................................................................................................................. 7
Rear Cover Removal ........................................................................................................................ 8
Chassis Removal and Disassembly ................................................................................................ 7
57" & 65" Optical Engine Removal ................................................................................................. 12
73" Optical Engine Removal .......................................................................................................... 13
57" & 65" Front Disassembly ........................................................................................................ 14
57" & 65" Screen Removal & Replacement ................................................................................... 15
73" Front Disassembly .................................................................................................................. 16
73" Screen Removal & Replacement ............................................................................................. 18
ADJUSTMENTS ............................................................................................................................... 20
Option Menu, Remote Control and Digital Signal Info .................................................................... 20
Initialization ................................................................................................................................... 21
Defaults ........................................................................................................................................ 22
LED Indicator Diagnostics ............................................................................................................. 24
Error Codes Operational Check ..................................................................................................... 24
Error Codes .................................................................................................................................. 25
57" & 65" models Lamp Troubleshooting ....................................................................................... 26
73" models Lamp Troubleshooting ................................................................................................. 28
CableCARD™ Troubleshooting ..................................................................................................... 30
Service Adjustment Mode ............................................................................................................. 31
Service Adjustment Mode Operation .................................................................................... 31
Transferring data .................................................................................................................. 32
Optical Engine Adjustment ............................................................................................................ 33
Test Signal activation ........................................................................................................... 33
Preliminary .......................................................................................................................... 33
57" & 65" Rotation and Keystone Distortion Adjustment ....................................................... 35
After completing adjustmentss ............................................................................................. 35
73" Adjustment Preliminary .................................................................................................. 36
73" Adjustment ..................................................................................................................... 37
Horizontal & Vertical Position ............................................................................................... 37
USING LEAD FREE SOLDER .......................................................................................................... 38
CHIP PARTS REPLACEMENT ......................................................................................................... 39
REPLACEMENT PARTS .................................................................................................................. 40
Parts Ordering .............................................................................................................................. 40
Critical and Warranty Parts Designation........................................................................................ 40
Parts Tolerance Codes .................................................................................................................. 40
Quick Reference List ........................................................................................................................ 41
SERVICE PARTS LIST .................................................................................................................... 42
SCREEN ASSEMBLY PARTS LIST .................................................................................................. 50
CIRCUITRY BLOCK DIAGRAMS ..................................................................................................... 52
CONTENTS
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