Dell Technical Update Service; D Image Quality Is Poor - Dell OptiPlex 760 Service Manual

See Diagnostic Lights.
Check the monitor settings — See the monitor documentation for instructions on adjusting the contrast and brightness, demagnetizing (degaussing) the
monitor, and running the monitor self-test.
Move the subwoofer away from the monitor —
(2 feet) away from the monitor.
Move the monitor away from external power sources —
appear shaky. Turn off nearby devices to check for interference.
Rotate the monitor to eliminate sunlight glare and possible interference
Adjust the Windows display settings —
Windows XP:
1. Click Start® Control Panel® Appearance and Themes.
2. Click the area you want to change or click the Display icon.
3. Try different settings for Color quality and Screen resolution.
Windows Vista:
1. Click Start ® Control Panel® Hardware and Sound® Personalization® Display Settings.
2. Adjust Resolution and Colors settings, as needed.

3D image quality is poor

Check the graphics card power cable connection —
Check the monitor settings — See the monitor documentation for instructions on adjusting the contrast and brightness, demagnetizing (degaussing) the
monitor, and running the monitor self-test.
Only part of the display is readable
Connect an external monitor —
1. Shut down your computer and connect an external monitor to the computer.
2. Turn on the computer and the monitor and adjust the monitor brightness and contrast controls.
If the external monitor works, the computer display or video controller may be defective. Contact Dell (see
Dell Technical Update Service
The Dell Technical Update service provides proactive e-mail notification of software and hardware updates for your computer. The service is free and can be
customized for content, format, and how frequently you receive notifications.
To enroll for the Dell Technical Update service, go to support.dell.com/technicalupdate.
Back to Contents Page
If your speaker system includes a subwoofer, ensure that the subwoofer is positioned at least 60 centimeters
Fans, fluorescent lights, halogen lamps, and other electrical devices can cause the screen image to
Ensure that the power cable for the graphics card(s) is correctly attached to the card.
Contacting Dell).