AOC 197Va, Service Manual

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19" LCD Color Monitor AOC 197Va
1
Service
Service
Service
Horizontal Frequency
30-83 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.
Table Of Contents.......…….................……...........…........1
Revision List.…........................………................……......2
1. Monitor Specification.................................………........3
2.LCD Monitor Description…………………………….......4
3. Operation Instruction…………...................…...........5
3.1 General Instructions.....................................…...........5
3.2 Control Button……………………………..……...........5
3.3 Adjusting the Picture...........................…............6
4. Input/Output Specification............……………............7
4.1 Input Signal Connector............…..……................7
4.2 Factory Preset Display Modes.........................8
4.3 Power Supply Requirements…………………………8
5 Panel Specification.....…………………........................9
5.1 Display Characteristics………………………………9
5.2 Optical Characteristics………………………………..9
5.3 Parameter guide line for CCFL Inverter……………..10
6.Block Diagram…….…................………….........11
6.1 Software Flow Chat…….…..........………….........11
6.2 Electrical Block Diagram………...………...…......12
7. Schematic……………………………………………. 15
7.1 Main Board…………..............................................15
7.2 Power Board....……………....................................20
8. PCB Layout..………….......................................22
8.1 Main Board……………......................................22
8.2 Power Board…......................................................25
8.3 Key Board……………….....................................28
8.4 Audio Board………………………………………….28
9. Maintainability……….......................................29
9.1. Equipments and Tools Requirement.....................29
9.2. Trouble Shooting…………....................................30
10. White-Balance, Luminance adjustment.................35
11.Monitor Exploded View……..……………............36
12. BOM List....……....................................................37
13.Different Parts List……………………………..……47
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING