TCL LCD20VS Service Manual

20'' LCD TV
Service
Service
Service
Description
Table Of Contents......................................................1
Important Safety Notice...................................................2
Revision List........................................................ 3
1. General Specification...............................................4
2. Operating Instructions.........................................5
2.1. The Use Of Remote Control.................................5
2.2. To Use the Menu...............................................6
2.3. How to Connect...............................................11
2.4. Front Panel Control Knobs.................................13
3. Input/Output Specification.......................................14
4. Mechanical Instructions.........................................16
5. Repair Flow Chart ..............................................19
6. PCB Layout .......................................................25
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
R FOR TH
UNIT WHEN S

TABLE OF CONTENTS

Page Description
6. 1. Mai n Board ......................... ......... . .. . .. . 25
6.2.Power Board.........................................27
6.3.Tuner Board........................................ .30
6.4.Key Board.....................................................30
6.5.IR Board.......................................................30
6.6.Earphone Board.............................................31
7. Block Diagram................................................32
8. Schematic.....................................................33
8.1 Main Board...................................................33
8.2.Power Board............................................46
8.3 Tuner Board.................................................49
9. Exploded View.............................................52
10. BOM List.....................................................53
SAFETY NOTICE
1
TCL LCD20VS
Horizontal Frequency
31.5- 49 kHz
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