AOC e2250Sda Service Manual

21.5" LCD 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.................................................6
3.1.General Instructions..................................................6
3.2.Control Buttons and Connections...............................6
3.3.OSD Setting.............................................................8
4.Input/Output Specification........................................24
4.1.Input Signal Connector..........................................24
4.2.Preset Display Modes................................25
4.3.Panel Specification...........................................26
5.Block Diagram............................................................28
5.1.Main Board.....................................................28
5.2.Power Board..................................................29
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.Schematic..........................................................30
6.1.Main Board.......................................................30
6.2.Power Board....................................................35
7.PCB Layout.........................................................37
7.1.Main Board......................................................37
7.2.Power Board.....................................................39
7.3.Key Board........................................................41
8.Maintainability.....................................................42
8.1.Equipments and Tools Requirement..................42
8.2.Trouble Shooting.............................................43
9.White-Balance,Luminance Adjustment.................47
10.Mechanical Instructions ............... ..............49
11.Monitor Exploded View......................................57
12.BOM List......................................................58
SAFETY NOTICE
1
AOC e2250Sda
Horizontal Frequency
30 - 83kHz
Page