“No Connection, Check Signal Cable” displays on screen.

Cause

Solution

 

 

Computer is not turned on.

Press the power button on the front of the monitor.

 

 

Monitor video cable is disconnected.

Connect the video cable between the monitor and computer.

 

CAUTION: Ensure that the computer power is off while

 

connecting the video cable.

 

 

“Out of Range” displays on screen.

 

 

 

Cause

Solution

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

Change the settings to a supported setting then restart the computer so that the new settings take effect.

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

1.

Select the monitor’s Auto-Adjustment option in the

unable to correctly interpret the output synchronization of the

 

monitor’s on-screen display menu.

graphics card.

2.

Manually synchronize the Clock and Clock Phase on-

 

 

 

screen display functions.

 

 

 

Graphics card is not seated properly or is bad.

1.

Reseat the graphics card.

 

2.

Replace the graphics card.

 

 

 

158

Chapter 9 Troubleshooting Without Diagnostics