AOC QDI TFT1780PSA, Service Manual, Page: 1 / 34

17” LCD Color Monitor QDI TFT1780PSA
1
Service
Service
Service
Horizontal Frequency
30-80 KHz
TABLE OF CONTENTS
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.
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...........................…............………….…..…............……...............…….7
4.Input/Output Specification.........….……………...........………….…..…............……..............……..9
4.1 Input Signal Connector.…...........…………..................………….…..…............……..............9
4.2 Factory Preset Display Modes.....………....................………….…..…............……..............9
4.3 Panel Specification...……..……………….................………….…..…............……................10
5.Schematic……………....................................…………….…..…............……...............…………12
5.1 Main Board.…….............................................………….…..…............……...............…….12
5.2 Power Board..………..……...............................………….…..…............……................……16
6.PCB Layout..………….......................................………….…..…............……................…………18
6.1 Main Board…………….…......................................………….…..…............…….................18
6.2 Power Board……………........................................………….…..…............……................20
7.BOM List………….…............................................………….…..…............……..................22
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING