AOC 2341Va - User Manual

23" LCD Color Monitor AOC 2341Va/2341Sa/2341Vg
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……………………………......6
3.Operation Instruction…………...............……..............7
3.1.General Instructions...........................…...................8
3.2.Control Button…………….…..............……...............8
3.3.OSD Menu…………….…...........................…...........8
4.Input/Output Specification............……………............20
4.1.Input Signal Connector............………….................20
4.2.Factory Preset Display Modes…….........................21
4.3.Panel Specification.....………...…………................23
5.Block Diagram…….....................………….................26
5.1.Main Board…….…………...………………....….......26
5.2.Power Board……………..……………...….......29
6.Schematic……………........................................29
6.1.Main Board………..........................................29
6.2.Power Board...…….........................................38
6.3.Key Board...…….............................................41
6.4.USB Board……………………………….……...42
7.PCB Layout..………….......................................44
7.1.Main Board………...........................................44
7.2.Power Board…...............................................50
7.3.Key Board…………….....................................50
7.4.USB Board……………………………….……...53
8.Maintainability……….........................................55
8.1.Equipments and Tools Requirement...............55
8.2.Trouble Shooting…………..............................56
9.White-Balance, Luminance Adjustment.............60
10.Monitor Exploded View………..…….…............62
11.BOM List…………………………………............64
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

AOC 2341Va Specifications

General

Screen Size	23 inches
Resolution	1920 x 1080
Panel Type	TN
Aspect Ratio	16:9
Brightness	250 cd/m²
Contrast Ratio	1000:1
Response Time	5 ms
Connectivity	VGA, DVI
Viewing Angles	170° horizontal, 160° vertical

Summary

Safety Information

General Warnings and Cautions

Covers safety warnings, hazards, and precautions for servicing and product use.

Monitor Specifications

Technical Specifications

Detailed specifications of the LCD panel, resolution, physical dimensions, and environmental operating conditions.

Monitor Description and Operation

LCD Monitor Description

Description of the LCD monitor's components and their interconnections via a block diagram.

Operating Instructions

Guide to operating the monitor, including control buttons and OSD menu navigation.

Input;Output and Panel Specifications

Input;Output Connectors and Modes

Information on input signal connectors, pinouts, and factory preset display modes.

Panel Characteristics

Detailed electrical and optical characteristics of the TFT LCD panel module.

Block Diagrams and Schematics

Block Diagrams

Block diagrams illustrating the main board and power board architecture.

Schematics

Detailed schematic diagrams for the main board, power board, key board, and USB board.

PCB Layouts

Main and Power Board Layouts

Component layout diagrams for the main board and power board.

Key and USB Board Layouts

Component layout diagrams for the key board and USB board.

Maintainability and Troubleshooting

Equipment and Tools Required

List of essential equipment and tools required for monitor servicing and maintenance.

Troubleshooting Procedures

Step-by-step troubleshooting guides and flowcharts for resolving common monitor issues.

Calibration and Configuration

White-Balance and Luminance Adjustment

Procedure for adjusting white balance and luminance settings, including factory mode calibration.

Exploded View and Parts List

Monitor Exploded View

Visual exploded view of the monitor assembly, showing component relationships.

Bill of Materials

A detailed list of all components used in the monitor, including part numbers and descriptions.