Toshiba TheaterWide 20HL86 User manual

SERVICE MANUAL
LCD COLOR TELEVISION
DOCU ME NT C R E A T E D I N JA PA N, November, 2006
20HL86
FIL E NO. 050-200629GR
The above model is classified as a green product (*1), as indicated by the underlined serial number.
This Service Manual describes replacement parts for the green product. When repairing this green
product, use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), see the next page.
20HLK86

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TABLE OF CONTENS
SERVICE INSTRUCTIONS............................................................................. 4
HANDLING THE LCD MODULE.................................................................. 5
APPEARANCE DESCRIPTION ..................................................................... 7
TROUBLE SHOOTING GUIDE .....................................................................9
PACKING EXPLODED VIEW...................................................................... 14
CIRCUIT BLOCK DIAGRAM...................................................................... 18
PCB DRAWING............................................................................................... 36
SPARE PARTS LIST....................................................................................... 39

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4
SERVICE INSTRUCTIONS

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HANDLING THE LCD MODULE

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Appearance Description
z20HLK86

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z20HL86

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Trouble Shooting Guide
1. Introduction
This document is prepared to be a guide to repair trouble sets, some problems happen more frequently are taken
as example in it. Those are turn on fail, no signal, no sound, etc.
2. Problems
(a) Set fail to turn on

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(b) NO backlight