Adepia TGL 2020A Service Manual

20" LCD Color Monitor
Service
Service
Service
Description
Table Of Contents..........................................................1
Important Safety Notice...............................................2
Revision List.................................................................3
1.Product Feature...............................................4
2.LCD Monitor Description........................................5
3.Operation Instruction............................................6
3.1 General Instructions.....................................................6
3.2 Control Buttons........................................................6
3.3 Adjusting the Picture..........................................8
4.Input/Output Specification.......................................11
4.1 Input Signal Connector............................................11
4.2 Factory Preset Display Modes...................................13
4.3 Power Supply Requirement..................................13
4.4 Panel Specification..................................................14
5.Block Diagram.........................................................17
5.1 Software Flow Chart.............................................17
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
5.2 Electrical Block Diagram.....................................19
6.Schematic............................................................21
6.1 Main Board..............................................................21
6.2 Power Board........................................................26
7.PCB Layout..........................................................29
7.1 Main Board.....................................................29
7.2 Power Board........................................................32
7.3 Key Board...........................................................33
8.Maintainability.......................................................34
8.1 Equipments and Tools Requirement......................34
8.2 Trouble Shooting..................................................34
9.White-Balance, Luminance adjustment.............40
10. Monitor Exploded View.......................................41
11.BOM List...............................................................42
SAFETY NOTICE
1
Adepia TGL 2020A
Horizontal Frequency
31KHz-82KHz
Page