21.5" LCD Color Monitor AOC 2236Vwa

Service

Horizontal Frequency

30-80 kHz

TABLE OF CONTENTS

Description Page 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

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...........................…............5

4. Input/Output Specification............……………............8

4.1 Input Signal Connector............…..……................8

4.2 Factory Preset Display Modes.........................9

5 Panel Specification.....…………………........................10

5.1 Display Characteristics………………………………10

5.2 Optical Characteristics………………………………..10

5.3 Parameter guide line for CCFL Inverter……………..10

6.Block Diagram…….…................………….........11

6.1 Software Flow Chat…….…..........………….........11

6.2 Electrical Block Diagram………...………...…......13

7. Schematic……………………………………………. 15

7.1 Main Board…………..............................................15

7.2 Power Board....……………....................................19

8. PCB Layout..………….......................................21

8.1 Main Board……………......................................21

8.2 Power Board…......................................................22

8.3 Key Board……………….....................................24

9. Maintainability……….......................................25

9.1. Equipments and Tools Requirement.....................25

9.2. Trouble Shooting…………....................................26

10. White-Balance, Luminance adjustment.................31

11.Monitor Exploded View……..……………............33

12. BOM List....……....................................................34

13.Different Parts List……………………………….…..44

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

Revision List.…........................………................……......2

1. Monitor Specification.................................………........4

2. LCD Monitor Description…………………………….......5

3. Operation Instruction…………...................…...........6

3.1 General Instructions.....................................…...........6

3.2 Control Button……………………………..……...........6

3.3 Adjusting the Picture...........................…............7

4. Input/Output Specification............……………............8

4.1 Input Signal Connector............…..……................8

4.2 Factory Preset Display Modes.........................9

5 Panel Specification.....…………………........................10

5.1 Display Characteristics………………………………10

5.2 Optical Characteristics………………………………..11

5.3 Parameter guide line for CCFL Inverter……………..12

6.Block Diagram…….…................………….........13

6.1 Software Flow Chart…….…..........………….........13

6.2 Electrical Block Diagram………...………...…......15

7. Schematic……………………………………………. 17

7.1 Main Board…………..............................................17

7.2 Power Board....……………....................................21

8. PCB Layout..………….......................................23

8.1 Main Board……………......................................23

8.2 Power Board…......................................................25

8.3 Key Board……………….....................................27

8.4 USB Board……………..........................................28

9. Maintainability………...............................................28

9.1. Equipments and Tools Requirement.....................29

9.2. Trouble Shooting…………....................................30

10. White-Balance, Luminance adjustment.................36

11.Monitor Exploded View……..……………............38

12. BOM List....……....................................................39

AOC 2236VWA - Page 44

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