Troubleshooting Without Diagnostics

Solving Display Problems (Continued)

Problem

Cause

Solution

 

 

 

Power LED flashes Red six

Pre-video graphics

For systems with a graphics card:

times, once every second,

error.

1.

Reseat the graphics card.

followed by a two second

 

 

2.

Replace the graphics card.

pause.

 

 

3.

Replace the system board.

 

 

 

 

For systems with integrated

 

 

graphics, replace the system board.

 

 

 

Monitor does not function

Monitor without energy

Disable monitor energy saver

properly when used with

saver capabilities is

feature.

energy saver features.

being used with energy

 

 

 

saver features enabled.

 

 

Dim characters.

The brightness and

 

contrast controls are not

 

set properly.

Adjust the monitor brightness and contrast controls.

Cables are not properly

Check that the graphics cable is

connected.

securely connected to the graphics

 

card and the monitor.

Blurry video or requested

If the graphics controller

resolution cannot be set.

was upgraded, the

 

correct video drivers

 

may not be loaded.

Install the video drivers included in the upgrade kit.

Monitor is not capable

Change requested resolution.

of displaying requested

 

resolution.

 

The picture is broken up, rolls, jitters, or flashes.

The monitor connections may be incomplete or the monitor may be incorrectly adjusted.

1.Be sure the monitor cable is securely connected to the computer.

2.In a two-monitor system or if another monitor is in close proximity, be sure the monitors are not interfering with each other’s electromagnetic field by moving them apart.

3.Fluorescent lights or fans may be too close to the monitor.

 

Monitor needs to be

Degauss the monitor.

 

degaussed.

 

 

 

 

Vibrating or rattling noise

Monitor degaussing coil

None. It is normal for the

coming from inside a CRT

has been activated.

degaussing coil to be activated

monitor when powered on.

 

when the monitor is powered on.

 

 

 

Clicking noise coming from

Electronic relays have

None. It is normal for some monitors

inside a CRT monitor.

been activated inside

to make a clicking noise when

 

the monitor.

turned on and off, when going in

 

 

and out of standby mode, and when

 

 

changing resolutions.

 

 

 

E–10

415606-001

Service Reference Guide, dx2200 MT