Table 2-5Solving Display Problems (continued)

“Out of Range” displays on screen.

Cause

Solution

 

 

Video resolution and refresh rate are set higher than what the monitor supports.

Restart the computer and enter Safe Mode. Change the settings to a supported setting then restart the computer so that the new settings take effect.

Vibrating or rattling noise coming from inside a CRT monitor when powered on.

Cause

Solution

 

 

Monitor degaussing coil has been activated.

None. It is normal for the degaussing coil to be activated when the monitor is powered on.

Clicking noise coming from inside a CRT monitor.

Cause

Solution

 

 

Electronic relays have been activated inside the monitor.

None. It is normal for some monitors to make a clicking noise when turned on and off, when going in and out of standby mode, and when changing resolutions.

High pitched noise coming from inside a flat panel monitor.

Cause

Solution

 

 

Brightness and/or contrast settings are too high.

Lower brightness and/or contrast settings.

 

 

Fuzzy focus; streaking, ghosting, or shadowing effects; horizontal scrolling lines; faint vertical bars; or unable to center the picture on the screen (flat panel monitors using an analog VGA input connection only).

Cause

Solution

 

 

Flat panel monitor’s internal digital conversion circuits may be unable to correctly interpret the output synchronization of the graphics card.

1.Select the monitor’s Auto-Adjustment option in the monitor’s on-screen display menu.

2.Manually synchronize the Clock and Clock Phase on- screen display functions. To download a SoftPaq that will assist you with the synchronization, go to the following Web site, select the appropriate monitor, and download either SP32347 or SP32202: http://www.hp.com/support

Graphics card is not seated properly or is bad.

1.Reseat the graphics card.

2.Replace the graphics card.

Certain typed symbols do not appear correct.

Cause

Solution

 

 

The font you are using does not support that particular symbol. Use the Character Map to locate and select the appropriate symbol. Click Start > All Programs > Accessories > System

22 Chapter 2 Troubleshooting Without Diagnostics

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