AOC 2236Vwa Service Manual

21.5" LCD Color Monitor
Service
Service
Service
Description

Table Of Contents..........................................................1

Table Of Contents..........................................................1
Description
Revision List.................................................................2
Revision List.................................................................2
1. Monitor Specification..................................................4
1. Monitor Specification..................................................3
2. LCD Monitor Description........................................5
2.LCD Monitor Description........................................4
3. Operation Instruction.............................................6
3. Operation Instruction.............................................5
3.1 General Instructions...................................................6
3.1 General Instructions...................................................5
3.2 Control Button....................................................6
3.2 Control Button....................................................5
3.3 Adjusting the Picture..........................................7
3.3 Adjusting the Picture..........................................5
4. Input/Output Specification.......................................8
4. Input/Output Specification.......................................8
4.1 Input Signal Connector.......................................8
4.1 Input Signal Connector.......................................8
4.2 Factory Preset Display Modes.........................9
4.2 Factory Preset Display Modes.........................9
5 Panel Specification..................................................10
5 Panel Specification..................................................10
5.1 Display Characteristics....................................10
5.1 Display Characteristics....................................10
5.2 Optical Characteristics......................................11
5.2 Optical Characteristics......................................10
5.3 Parameter guide line for CCFL Inverter.................12
5.3 Parameter guide line for CCFL Inverter.................10
6.Block Diagram...............................................13
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 Chart.........................................13
Page
6.1 Software Flow Chat.........................................11
6.2 Electrical Block Diagram.................................15
6.2 Electrical Block Diagram.................................13
7. Schematic.................................................... 17
7. Schematic.................................................... 15
7.1 Main Board..........................................................17
7.1 Main Board..........................................................15
7.2 Power Board.......................................................21
7.2 Power Board.......................................................19
8. PCB Layout.....................................................23
8. PCB Layout.....................................................21
8.1 Main Board.....................................................23
8.1 Main Board.....................................................21
8.2 Power Board.........................................................25
8.2 Power Board.........................................................22
8.3 Key Board.......................................................27
8.3 Key Board.......................................................24
8.
4 USB Board.........................................................28
9. Maintainability................................................25
9. Maintainability........................................................28
9.1. Equipments and Tools Requirement.....................25
9.1. Equipments and Tools Requirement.....................29
9.2. Trouble Shooting................................................26
9.2. Trouble Shooting................................................30
10. White-Balance, Luminance adjustment.................31
10. White-Balance, Luminance adjustment.................36
11.Monitor Exploded View...................................33
11.Monitor Exploded View...................................38
12. BOM List..............................................................34
12. BOM List..............................................................39
13.Different Parts List..........................................44
SAFETY NOTICE
1
AOC 2236Vwa
Horizontal Frequency
30-80 kHz
Page