AOC 2241Pa Service Manual

22" LCD Color Monitor
Service
Service
Service
Description
Table of Contents....................................................1
Revision List...................................................................2
Important Safety Notice.................................................3
1.Monitor Specification...................................................4
2.LCD Monitor Description.........................................5
3.Operation Instruction.................................................7
3.1.General Instructions.................................................7
3.2.Control Buttons and Connections...............................7
3.3.OSD Menu..............................................................9
4.Input/Output Specification........................................22
4.1.Input Signal Connector..........................................22
4.2.Preset Display Modes................................23
4.3.Panel Specification...........................................24
5.Block Diagram............................................................26
5.1.Main Board.....................................................26
5.2.Power Board..................................................27
6.Schematic..........................................................28
6.1.Main Board.......................................................28
6.2.Power Board....................................................33
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
6.3.Key Board....................................................36
6.4.USB Board....................................................37
7.PCB Layout.........................................................39
7.1.Main Board......................................................39
7.2.Power Board.....................................................40
7.3.Key Board........................................................42
7.4.USB Board.......................................................42
8.Maintainability.....................................................43
8.1.Equipments and Tools Requirement..................43
8.2.Trouble Shooting.............................................44
9.FOS Testing..................................................48
10.Firmware and DDC Instruction.......................52
11.White-Balance,Luminance Adjustment...............72
12.Mechanical Instructions ............... ..............74
13.Monitor Exploded View......................................78
14.BOM List......................................................79
SAFETY NOTICE
1
AOC 2241Pa
Horizontal Frequency
30-80 kHz
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