AOC 177S Service Manual

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17" LCD Color Monitor AOC 177S
1
Service
Service
Service
Horizontal Frequency
30-80 kHz
TABLE OF CONTENTS
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.
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 Button…………….…..............……...............6
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.Block Diagram…….…...................…………................12
5.1.Software Flow Chart…………………....….......12
5.2.Electrical Block Diagram…………..…..….......14
6.Schematic……………...............................….....16
6.1 Main Board……………..........................................16
6.2 Power Board....……..............................................21
7.PCB Layout..………….......................................23
7.1.Main Board………........................................23
7.2.Power Board….......................................26
7.3.Key Board…………………....................................28
8.Maintainability……….......................................29
8.1.Equipments and Tools Requirement......................29
8.2.Trouble Shooting…………..............................30
9.White-Balance, Luminance adjustment.................36
10.Monitor Exploded View……………………............37
11.BOM List….....................................................38
12.Different Parts List……………………………………50
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
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Summary of Contents

Page 1 - Service

17" LCD Color Monitor AOC 177S 1 Service Service Service

Page 2 - Revision List

17" LCD Color Monitor AOC 177S 104.3 Panel Specification 4.3.1 Display Characteristics 4.3.2 Optica

Page 3 - Important Safety Notice

17" LCD Color Monitor AOC 177S 114.3.3 Electrical Characteristics TFT LCD Module: Back Light Unit:

Page 4 - 1. Monitor Specifications

17" LCD Color Monitor AOC 177S 125. Block Diagram 5.1 Software Flow Chat 12NY5YN10YN12YN 7YN6438914111

Page 5 - 2. LCD Monitor Description

17" LCD Color Monitor AOC 177S 13 1) MCU initialize. 2) Is the EPROM blank? 3) Pro

Page 6 - 3. Operating Instructions

17" LCD Color Monitor AOC 177S 145.2 Electric Block Diagram 5.2.1 Main Board

Page 7 - 3.3 Adjusting the Picture

17" LCD Color Monitor AOC 177S 155.2.2 Power Board

Page 8

17" LCD Color Monitor AOC 177S 16 6. Schematic 6.1 Main Board PB[0.

Page 9 - 4.1 Input Signal Connector

17" LCD Color Monitor AOC 177S 17 R710 NCQ706PMBS3904R31R7054.7K 1

Page 10 - 4.3 Panel Specification

17" LCD Color Monitor AOC 177S 18 ESD_5VD412MLL5232B 5.6VFB412 0 1

Page 11 - Back Light Unit:

17" LCD Color Monitor AOC 177S 19 LED_AAUDIO_STBYAUDIO_MUTECLK+3PA1

Page 12 - 5. Block Diagram

17" LCD Color Monitor AOC 177S 2Revision List Revision Date Revision History TPV Model A00 April-19

Page 13

17" LCD Color Monitor AOC 177S 20 GPOO3LVA3PLVBCKMRA2NBA3NC101NC3.3

Page 14 - 5.2.1 Main Board

17" LCD Color Monitor AOC 177S 21 6.2 Power Board C9200.001uF/500VR

Page 15 - 5.2.2 Power Board

17" LCD Color Monitor AOC 177S 22 R802300KΩ 1/4WZD801RLZ5.6B1 2+12V

Page 16 - TSUM56AK SCHEMATIC

17" LCD Color Monitor AOC 177S 23 7. PCB Layo

Page 17 - 715G1558.DSN

17" LCD Color Monitor AOC 177S 24

Page 18

17" LCD Color Monitor AOC 177S 25

Page 19 - TSUM57AK/56AK

17" LCD Color Monitor AOC 177S 26 7.2 Power B

Page 20 - PANEL INTERFACE

17" LCD Color Monitor AOC 177S 27

Page 21 - 6.2 Power Board

17" LCD Color Monitor AOC 177S 28 7.3 Key bo

Page 22 - Inverter

17" LCD Color Monitor AOC 177S 29 8. Maintain

Page 23 - 7. PCB Layout

17" LCD Color Monitor AOC 177S 3Important Safety Notice Proper service and repair is important to th

Page 24

17" LCD Color Monitor AOC 177S 30 8.2 Trouble

Page 25

17" LCD Color Monitor AOC 177S 31 No picture

Page 26 - 7.2 Power Board

17" LCD Color Monitor AOC 177S 32 White scree

Page 27

17" LCD Color Monitor AOC 177S 33 8.2.2 Power

Page 28 - 7.3 Key board

17" LCD Color Monitor AOC 177S 34 2.) No Back

Page 29 - 8. Maintainability

17" LCD Color Monitor AOC 177S 35 8.2.3 Key B

Page 30 - 8.2.1 Main Board

17" LCD Color Monitor AOC 177S 36 9. White- B

Page 31 - No picture (LED orange)

17" LCD Color Monitor AOC 177S 37 10. Monitor

Page 32 - White screen

17" LCD Color Monitor AOC 177S 38 11. BOM Lis

Page 33 - 8.2.2 Power Board

17" LCD Color Monitor AOC 177S 39 Q45G 8

Page 34

17" LCD Color Monitor AOC 177S 41. Monitor Specifications Items Description Driving system TFT Col

Page 35 - 8.2.3 Key Board

17" LCD Color Monitor AOC 177S 40 SW003 077G

Page 36

17" LCD Color Monitor AOC 177S 41 C907 067G2

Page 37 -

17" LCD Color Monitor AOC 177S 42 705G 90

Page 38 - 11. BOM List

17" LCD Color Monitor AOC 177S 43 R442 061G0

Page 39

17" LCD Color Monitor AOC 177S 44 R422 061G0

Page 40

17" LCD Color Monitor AOC 177S 45 C419 065G0

Page 41

17" LCD Color Monitor AOC 177S 46 D412 093G

Page 42

17" LCD Color Monitor AOC 177S 47 Q85G000

Page 43

17" LCD Color Monitor AOC 177S 48 R825 061G08

Page 44

17" LCD Color Monitor AOC 177S 49 C916 065G0

Page 45

17" LCD Color Monitor AOC 177S 52. LCD Monitor Description The LCD monitor will contain a main board,

Page 46

17" LCD Color Monitor AOC 177S 50 CN901 006G

Page 47

17" LCD Color Monitor AOC 177S 51 0Q1G103

Page 48

17" LCD Color Monitor AOC 177S 52 X401 093G

Page 49

17" LCD Color Monitor AOC 177S 63. Operating Instructions 3.1 General Instructions Press the power but

Page 50 - 12. Different Parts List

17" LCD Color Monitor AOC 177S 73.3 Adjusting the Picture Adjustment steps: 1. Press the MENU-button t

Page 51

17" LCD Color Monitor AOC 177S 8User / Red Red Gain from Digital-register. User / Green Green Gain Di

Page 52

17" LCD Color Monitor AOC 177S 94. Input/Output Specification 4.1 Input Signal Connector Pin No. De

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