Univex 1782X01, 1962, 1966, 1942, 1837, 1741 Monitor problems, Wrong characters appear on the screen

Models: 1763 1782X01 1664 1782 1739 1762 1942 1938 1761 1738 1677 1962 1654 1837 1741 1665 1966

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Monitor problems

Note: Many monitors have status-indicator lights and built-in controls for adjusting brightness, contrast, width, height, and other picture adjustments. However, the controls vary from monitor type to monitor type. For information about the status lights and using the controls, refer to the documentation that comes with your monitor.

Select your symptom from the following list:

“Wrong characters appear on the screen” on page 61

“The monitor works when you turn on the computer, but goes blank after some period of computer inactivity” on page 61

“The monitor works when you turn on the computer, but goes blank when you start some application programs” on page 61

“The image appears to be flickering” on page 61

“The image is discolored” on page 62

Wrong characters appear on the screen

Symptom: Wrong characters appear on the screen.

Action: Have the computer serviced. For details, see Chapter 11 “Getting information, help, and service” on page 73.

The monitor works when you turn on the computer, but goes blank after some period of computer inactivity

Symptom: The monitor works when you turn on the computer, but goes blank after some period of computer inactivity.

Action: The computer is probably set for energy savings with the power-management feature. If the power-management feature is enabled, disabling it or changing the settings might solve the problem.

If these actions do not correct the problem, run the diagnostic programs (see “Diagnostic programs” on page 69 for instructions). If you need technical assistance, see Chapter 11 “Getting information, help, and service” on page 73.

The monitor works when you turn on the computer, but goes blank when you start some application programs

Symptom: The monitor works when you turn on the computer, but goes blank when you start some application programs.

Actions:

Make sure the monitor signal cable is securely connected to the monitor and the monitor connector on the computer. A loose cable can cause intermittent problems.

Verify that the necessary device drivers for the application programs are installed. Refer to the documentation for the affected application program to see if device drivers are required.

If these actions do not correct the problem, run the diagnostic programs (see “Diagnostic programs” on page 69 for instructions). If you need technical assistance, see Chapter 11 “Getting information, help, and service” on page 73.

The image appears to be flickering

Symptom: The image appears to be flickering.

Chapter 10. Troubleshooting and diagnostics 61

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Univex 1782X01, 1962, 1966, 1942 Monitor problems, Wrong characters appear on the screen, Image appears to be flickering