External Monitor Self-Test (TP 380XD, 385XD

^{IBM-AUSTRIA - PC-HW-Support 30 Aug 1999}

External Monitor Self-Test (TP 380XD, 385XD - 2635)

External Monitor Self-Test

If a monitor problem occurs only when an external monitor is connected, do the following:

NOTE: Before you replace a monitor:

Check that the 95xx system support either 63xx, 85xx, or 95xx displays.
Make sure that the external monitor is properly connected to the computer.

If the screen is rolling, replace the external monitor. If that does not correct the problem, replace the FRUs in the following order:

System board
Bus adapter (if used)

If the screen is not rolling, run the monitor self-test as follows:

Power-off the computer and monitor.
Disconnect the monitor signal cable.
Power-on the monitor.
Set the contrast to its maximum position.
Set the brightness control to the center detent position.

Check the following conditions:

The screen contrast and brightness control are adjustable.
The screen is either white or light gray, with a black margin (test margin).
The screen is set to CRT or both on the ThinkPad Configuration program.
NOTE: The location of the test margin may vary with the type of monitor. It can be either at the top and/or bottom, or left and/or right of the screen.

If you do not see a test margin on the screen, replace the monitor. If there as a test margin on the screen, replace the system board.

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