Lenovo ThinkPad 380ED TP 380Z Hardware Maintenance Manual (August 1998) for us - Page 21

The location of the test margin may vary with, Configration program.

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2. Bus adapter (if used) If the screen is not rolling, run the monitor self-test as follows: 1. Power-off the computer and monitor. 2. Disconnect the monitor signal cable. 3. Power-on the monitor 4. Set the contrast to its maximum position. 5. 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 Configration 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 is a test margin on the screen, replace the system board. ThinkPad 380Z 19

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2.
Bus adapter (if used)
If the screen is not rolling, run the monitor self-test as
follows:
1.
Power-off the computer and monitor.
2.
Disconnect the monitor signal cable.
3.
Power-on the monitor
4.
Set the contrast to its maximum position.
5.
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
Configration 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 is a test margin on the screen, replace
the system board.
ThinkPad 380Z
19