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

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(C) TV no signal

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(D) HDMI or PC no signal

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(E) No sound

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PACKING EXPLODED VIEW
ITEM Model P/N Description
20HLK86 75004560
1 20HL86 75003716 ASSY BASE T20WH8
20HLK86 75004561
2 20HL86 75003719 ASSY BEZEL T20WH8 STD
3 20HLK86/20HL86 75005407 ASSY REAR CVR T20WH8
4 20HLK86/20HL86 75003709 LCDM T200XW002-V0 AUO
5 20HLK86/20HL86 75003705 PCBA MAIN BD MI T20WH8
6 20HLK86/20HL86 75003706 PCBA KEYPAD BD T20WH8 MI
20HLK86 75004558
7 20HL86 75003707 PCBA IR BD T20WH8-Standard MI
8 20HLK86/20HL86 75003704 PCBA PWR BD 70W EADP-70AF
9 20HLK86/20HL86 75003696 SPK*2 160HM 330/520MM
APS-0000
20HLK86 75003717
10 20HL86 75003703 ASSY HANDLE T20WH8 STD

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z20HLK86

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z20HL86

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CIRCUIT BLOCK DIAGRAM

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