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Compaq Professional Workstation AP200 User Manual

Page 113

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Compaq Professional Workstation AP200 Reference Guide

Writer: IM Project: Compaq Professional Workstation AP200 Reference Guide Comments: 352620-003

File Name: G-CH06.DOC Last Saved On: 12/15/98 4:26 PM

COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED

Solving Display Problems

Continued

Problem

Cause

Solution

Screen is blank.
(

Continued)

You are using a fixed-sync

monitor and it won't sync at

the resolution chosen.

Be sure that the monitor can

accept the same sweep rate

as the resolution chosen.

Monitor does not

function properly

when used with

energy-saver

features.

Monitor without energy-saver

capabilities is being used with

energy-saver features enabled.

Disable monitor energy-saver

feature.

Video colors are

wrong.

This indicates that either the

cabling or monitor impedance

is incorrect.

1.

If you are using BNC
cables, be sure that the
Red, Green, and Blue
BNC cables are
connected to the
corresponding monitor
connectors.

2.

Be sure your monitor’s
RGB inputs are set to 75
ohms.

Characters are dim.

The brightness and contrast

controls are not set properly.

Adjust the monitor brightness

and contrast controls.

Cables are not properly

connected.

Verify that the video cable is

securely connected to the

video card and the monitor.

The RGB switch on the back of

the monitor is incorrectly set.

Set the RGB switch (and sync

options, if this option is

available) to 75 ohms, with

the sync set to “External.”

Refer to the documentation

included with the monitor.

Continued