42
″
LCD TV Haier LT42A1
1
Service
Service
Service
Table of Contents
Description
Page Description Page
SAFETY NOTICE
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
6.2 Power Board…..…………..…………..…..…….......33
6.3 Key Board………………………..……...……….......37
6.4 IR Board…………………………..….…….…….......37
7.Adjustment................................................................38
8.Block Diagram.……..................................................39
9.Wiring Diagram.…….................................................40
10.Schematic Diagram……..……..……….……….......41
10.1 Main Board………….…………………....…..........41
10.2 Power Board………..…..…………...……….........55
10.3 Key Board…………….………….……………........61
10.4 IR Board………..………………….……….............62
10.Exploded View…………………….………….….......63
11.BOM List……………….…………….……………......65
Table of Contents........……...................................…........1
Important Safety Notice.......................................……......2
Revision List………………………………………………....3
1. General Specifications...............................………........4
2. Operating Instructions…………………….……...….......6
2.1 The Use of Remote Control…….…………...…….......6
2.2 To Use the Menus...……………………….……….......7
2.3 How to Connect……..…………………….………......16
2.4 Front Panel Control Knobs……………….………......17
3.Input/Output Specification…………....................……..18
4.Mechanical Instructions……………………..................22
5.Repair Flow Chart ……………………….…….……......25
6.PCB Layout ………………..………………....…...........31
6.1 Main Board………………..……………......…..…......31
Summary of Contents for LT42A1
Page 31: ...31 6 PCB Layout 6 1 Main Board 715G3431 1 ...
Page 32: ...32 ...
Page 33: ...33 6 2 Power Board 715G3351 1 ...
Page 34: ...34 ...
Page 35: ...35 ...
Page 36: ...36 715G3358 2 ...
Page 37: ...37 6 3 Key Board 715G3293K01001004S 6 4 IR Board 715G3478R01002004M ...
Page 39: ...39 8 Block Diagram ...
Page 63: ...63 10 Exploded View ...
