AOC 197Va Service Manual

19" LCD Color Monitor
Service
Service
Service
Description
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
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

TABLE OF CONTENTS

Page Description
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
SAFETY NOTICE
1
AOC 197Va
Horizontal Frequency
30-83 kHz
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