AOC A2258PW User Manual

38
Problem & Question Possible Solution
Screen image is not centered or sized
properly
• Adjust H-Position and V-Position or press hot-key (AUTO).
Picture has color defects
(white does not look white)
• Adjust RGB color or select desired color temperature.
Horizontal or vertical disturbances on
the screen
• Use Windows 95/98/2000/ME shut-down mode to adjust
CLOCK and PHASE.
• Press to auto-adjust.
CLOCK (pixel frequency) controls the number of pixels scanned by one horizontal sweep. If the
frequency is not correct, the screen shows vertical stripes and the picture has not correct width.
PHASE adjusts the phase of the pixel clock signal. With a wrong phase adjustment the picture has
horizontal disturbances in light picture.
For PHASE and CLOCK adjustment use “dot-pattern” or Windows XP/VISTA/7 shut-down mode
pattern.
ERROR MESSAGE & POSSIBLE SOLUTION
No Signal
1. Check that the signal-cable is properly connected. If the connector is loose, tighten the
connector’s screws.
2. Check the signal-cable’s connection pins for damage.
Input Not Support
Your computer has been set to unsuitable display mode, set the computer to display mode given in
the following table on page 34.

AOC A2258PW Specifications

General

Brand	AOC
Model	A2258PW
Category	Monitor
Language	English

Summary

SAFETY

Power Safety

Information on operating the monitor safely using the correct power source and precautions.

Installation Safety

Guidance on safely installing the monitor, including stability and ventilation requirements.

SETUP

Connecting the Monitor

Step-by-step guide to connect the monitor to a computer using D-Sub and HDMI cables.

ADJUSTING

Setting Optimal Resolution

Guides on how to set the optimal screen resolution for Windows Vista, 8, and ME/2000.

OPERATING INSTRUCTIONS

OSD Settings Menu

Guides on navigating and using the On-Screen Display (OSD) menu for various settings.

STARTING WITH ANDROID

Connecting to Network

Instructions for connecting to Wi-Fi, Ethernet, and PPPoE networks in Android.

Adjusting Settings for Android

DRIVER

Monitor Driver Installation

TECHNICAL SUPPORT (FAQ)

Troubleshooting Common Issues

Provides solutions for common problems like 'Power LED is not on' and 'No images on the screen'.

Error Messages and Solutions

Addresses common error messages like 'No Signal' and 'Input Not Supported'.

SERVICE

Warranty Statement for Europe

Warranty Statement for North & South America (Excluding Brazil)