42
″
LCD TV AOC L42H931(P)
1
Service
Service
Service
Horizontal Frequency
31.5~67.5 KHz
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………………..…….…….……….....30
6.3 Inverter Board……………..…….…….……….......33
6.4 Key Board………………………..……..………......34
6.5 IR Board………………………….……..………......34
7.Adjustment……..…………………………................35
8.Block Diagram.……....................................................36
9.Schematic Diagram…..………….......………………...38
9.1 Main Board…………………………………...…......38
9.2 Power Board…………..….….……...…………......48
9.3 Inverter Board…………..….……...………….........53
9.4 Key Board……………….……….…………….........54
9.5 IR Board……...………….……….……………........55
10.Exploded View………………………………….…….56
11. BOM List……………….…….…………….…………..58
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……..……………….…….……….....10
2.4 Front Panel Control Knobs…….………….………....14
3.Input/Output Specification…………....................…....16
4.Mechanical Instructions…………………….................18
5.Repair Flow Chart ……………………….…….…….....21
6.PCB Layout ………………..…………………....….......28
6.1 Main Board…………..………………...…….……......28
Summary of Contents for L42H931
Page 4: ...4 1 General Specification ...
Page 5: ...5 2 Operating Instructions 2 1 The Use of Remote Control ...
Page 6: ...6 2 2 To Use the Menus ...
Page 7: ...7 ...
Page 8: ...8 ...
Page 9: ...9 ...
Page 10: ...10 2 3 How to Connect ...
Page 11: ...11 ...
Page 12: ...12 ...
Page 13: ...13 ...
Page 14: ...14 2 4 Front Panel Control Knobs ...
Page 20: ...20 5 Remove the screws to remove key board IR board and speaker ...
Page 28: ...28 6 PCB Layout 6 1 Main Board 715G3364M01000004K ...
Page 29: ...29 ...
Page 30: ...30 6 2 Power Board 715G3351 1 ...
Page 31: ...31 ...
Page 32: ...32 ...
Page 33: ...33 6 3 Inverter Board 715G3358 2 ...
Page 34: ...34 6 4 Key Board 715G3400 1 6 5 IR Board 715G3394 2 ...
Page 56: ...56 10 Exploded View ...
