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Asus VW224U User Manual

Asus VW224U
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Service Manual ASUS VW224U&VW224S
1
LCD Monitor Service Manual
Model: ASUS VW224U&VW224S
D
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND
SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY
OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL,
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Asus VW224U Specifications

General IconGeneral
Screen Size22 inches
Resolution1680 x 1050
Panel TypeTN
Brightness300 cd/m²
Contrast Ratio1000:1
Response Time5 ms
Refresh Rate60 Hz
Aspect Ratio16:10
Viewing Angle170° (H) / 160° (V)
Color Support16.7 million colors
Input ConnectorsDVI-D, VGA
ConnectivityVGA

Summary

Revision List

Important Safety Notice

Monitor Specifications

Operation Instruction

General Instructions

Basic steps to turn on and connect the monitor.

Control Button Functions

Explanation of the functions of each control button on the monitor.

OSD Menu Operation

Guide to navigating and using the On-Screen Display menu for settings.

Input/Output Specification

Input Signal Connectors

Details on VGA and DVI input connector pin configurations.

Power Supply Requirements

Electrical specifications including voltage, frequency, and current.

Factory Preset Display Modes

List of supported display resolutions and refresh rates.

Block Diagram

Software Flow Chart

Visual representation of the monitor's software operational flow.

Electrical Block Diagram

Overview of the main board's electrical components and connections.

Inverter/Power Board Diagram

Block diagram illustrating the inverter and power supply circuitry.

Schematic Diagrams

Main Board Schematic

Detailed electrical schematic for the monitor's main circuit board.

Power Board Schematic

Detailed electrical schematic for the monitor's power supply board.

Audio Board Schematic

Detailed electrical schematic for the monitor's audio circuit board.

Key Board Schematic

Detailed electrical schematic for the monitor's keypad control board.

PCB Layout

Main Board PCB Layout

Physical layout of components and traces on the main circuit board.

Power Board PCB Layout

Physical layout of components and traces on the power supply board.

Audio Board PCB Layout

Physical layout of components and traces on the audio board.

Key Board PCB Layout

Physical layout of components and traces on the key board.

Disassemble & Assemble SOP

Disassembly Precautions

Safety guidelines and necessary precautions before disassembling the monitor.

Suggested Tools for Service

List of recommended tools for performing service and repairs.

Disassembly Procedure

Step-by-step instructions for taking apart the monitor's subsystems.

Assembly Procedure

Step-by-step instructions for reassembling the monitor after service.

ISP Instruction

ISP Tool and Setup

Requirements and connection guide for the In-System Programming tool.

ISP Write Process

Detailed steps for performing the ISP write procedure for firmware updates.

DDC Instruction

DDC Data Reprogramming

Information on re-programming DDC data for factory settings and serial numbers.

DDC Board Connection and Process

Guide to connecting the DDC board and performing analog/digital DDC write.

Color/White Balance Adjustment

Color Temperature Settings

Procedure for setting desired color temperatures (Warm, Normal, Cool, sRGB).

Gain Adjustment Procedure

Steps for adjusting RGB gain to calibrate white balance for different color temperatures.

Trouble Shooting

Main Board Troubleshooting

Diagnostic flowcharts for common main board issues like no power or no picture.

Power/Inverter Board Troubleshooting

Diagnostic flowcharts for power and backlight related problems.

Key Board Troubleshooting

Flowchart for diagnosing issues related to the monitor's keypad and OSD.

Exploded View

BOM List

Different Parts List

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