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

CRTset ortoboth

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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IBM 380Z manual CRTset ortoboth