Table Of Contents - Mitsubishi Electric LT-46244; LT-40133; LT-46133; LT-52133; LT-40134; LT-46144; LT-52144; LT-46244; LT-52244 Service Manual

MODELS: LT-40133 / LT-46133 / LT-52133 / LT-40134 / LT-46144 / LT-52144 / LT-46244 / LT-52244
INTRODUCTION ................................................................................................................................ 5
Dimensions, weight, power usage, etc. ........................................................................................... 5
PRODUCT SAFETY NOTICE ............................................................................................................. 5
SAFETY PRECAUTIONS ................................................................................................................. 6
DISASSEMBLY .................................................................................................................................. 7
Back Cover Removal ....................................................................................................................... 7
LCD Stand Removal ........................................................................................................................ 8
Rear Input Cover Removal ............................................................................................................... 8
Wall Mounting Brackets Removal ................................................................................................... 9
Chassis & Stand Holder Removal .................................................................................................... 9
CHASSIS DISASSEMBLY
PWB-DM Cover Removal .............................................................................................................. 10
PWBs Power, Signal & DM Removal ............................................................................................ 10
LT-52122 & LT-5244 PWB-DM Removal ......................................................................................... 11
PWB-DM End Plate Removal ........................................................................................................ 11
LCD PANEL REPLACEMENT
ASSY-SIDE-TERMINAL Removal .................................................................................................. 12
Bezel Removal .............................................................................................................................. 12
40" & 46" Screen Brackets Removal ............................................................................................. 13
52" Screen Brackets Removal ....................................................................................................... 14
SETUP, INTIALIZATION & ERROR CODES
User Controls ................................................................................................................................ 15
Option Menu & Digital Signal Strength .......................................................................................... 16
Reset & Initalization ...................................................................................................................... 17
Inital Settings ................................................................................................................................ 18
Led Indication ............................................................................................................................... 19
Error Codes .................................................................................................................................. 20
USING LEAD FREE SOLDER .......................................................................................................... 21
CHIP PARTS REPLACEMENT ......................................................................................................... 22
REPLACEMENT PARTS .................................................................................................................. 23
Parts Ordering .............................................................................................................................. 23
Critical and Warranty Parts Designation........................................................................................ 23
Parts Tolerance Codes .................................................................................................................. 23
Quick Reference List ...................................................................................................................... 24
SERVICE PARTS LIST .................................................................................................................... 25
CIRCUITRY BLOCK DIAGRAMS ..................................................................................................... 32
Main Power Supply ....................................................................................................................... 32
PWB-DM DC to DC Supplies ........................................................................................................ 33
Overall Video Signal Path ............................................................................................................. 34
PWB-SIGNAL Video Select Circuitry ............................................................................................ 35
Overall Audio Signal Path .............................................................................................................. 36
PWB-TERMINAL Sound Select Circuitry ...................................................................................... 37
CONTENTS
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