Toshiba 20DL76 User manual

SERVICE MANUAL
LCD COLOR TELEVISION
DOCUMENT CREATED IN JAPAN, 2006
20DL76
FILE NO. 050-200630GR
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.

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TABLE OF CONTENS
SERVICE INSTRUCTIONS............................................................................. 3
HANDLING THE LCD MODULE.................................................................. 5
APPEARANCE DESCRIPTION ..................................................................... 7
TROUBLE SHOOTING GUIDE ................................................................... 16
PACKING EXPLODED VIEW...................................................................... 21
CIRCUIT BLOCK DIAGRAM...................................................................... 32
PCB DRAWING............................................................................................... 48
SERVICE PARTS LIST.................................................................................. 51

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SERVICE INSTRUCTIONS

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HANDLING THE LCD MODULE

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z20DL76

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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) Turn on fail

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(b) NO backlight

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© TV no signal

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(D) PC no signal

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(E) No sound
No sound

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PACKING EXPLODED VIEW
ITEM Model P/N Description
1 20VL66C/T/H/M/R/E/A/20DL76 75004552 ASSY BASE T20VV6
20VL66C/T/H/M/R/E/A 75004569
2 20DL76 75004551 ASSY BEZEL T20VV6
20VL66C/T/H/M/R/E/A 75004570
3 20DL76 75004553 ASSY REAR CVR T20VV6
4 20VL66C/T/H/M/R/E/A/20DL76 75004548 LCDM A201SN02-V5 AUO
20VL66C/T/H/M/R/E/A 75004566
5 20DL76 75004547 PCBA MAIN BD MI T20VV8 GA/CN
6 20VL66C/T/H/M/R/E/A/20DL76 75003706 PCBA KEYPAD BD T20WH8 MI
7 20VL66C/T/H/M/R/E/A/20DL76 75003707 PCBA IR BD T20WHB MI
8 20VL66C/T/H/M/R/E/A/20DL76 75004843 PCBA PWR BD 70W EADP-70AF
9 20VL66C/T/H/M/R/E/A/20DL76 75005170 SPK*2 160HM 235/590MM PS-000

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z20DL76

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CIRCUIT BLOCK DIAGRAM

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