IBM 68666AU User Guide - Page 118
General problems, Monitor problems, Action, Before removing the cover, see Safety
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Monitor problems Blank screen Only the cursor appears. Wrong characters appear on the screen. Action Verify that: 1. The computer power cord is plugged into the computer and a working electrical outlet. 2. The monitor is turned on and the brightness and contrast controls are adjusted correctly. 3. The monitor signal cable is securely connected to the monitor and the monitor connector on the graphics adapter. To find the monitor connector on the graphics adapter installed in your computer, see "Connecting computer cables" on page 13. CAUTION: Before removing the cover, see "Safety information" on page ix. 4. Make sure the graphics adapter is properly installed in the AGP slot. For the location of the AGP slot, see Chapter 5, "Installing options" on page 57. You might need to reseat the adapter. 5. All added options have been properly installed and are correctly connected. If you cannot correct the problem, have the monitor and computer serviced. Have the computer serviced. Have the computer serviced. General problems General problems The computer does not start when you press the power switch. Problems such as a broken cover lock or indicator lights not working Action Verify that: 1. All cables are securely connected to the proper connectors on the computer. For the location of the connectors, see "Connecting computer cables" on page 13. 2. The computer cover is properly installed. If you cannot correct the problem, have the computer serviced. Have the computer serviced. 102 IntelliStation Z Pro User Guide