Troubleshooting

 

Symptom Charts/Video - 12

 

 

is very light

1

Adjust screen contrast (FSTN units only) and brightness

 

 

Display

 

 

or totally white

2

settings.

 

 

 

 

 

Verify data cable to I/O logic board connection, inverter

For

 

 

 

 

board connection, and I/O logic board connections. Note:

 

 

 

 

13.3” displays only, replace data cable and ensure that the

 

 

 

3

cable is bent at the scored line.

 

 

 

 

 

Replace inverter board (international only).

 

 

 

 

 

4

Replace display (international only).

 

 

 

 

 

5

Replace I/O logic board.

 

 

An external monitor

1

Verify external monitor has power.

 

 

connected to the

2

Try another video adapter.

 

 

PowerBook shows no

3

Try another monitor.

 

 

video

4

Restart unit and reset PRAM.

 

 

 

 

 

5

Replace I/O logic board.

 

 

Page 69
Image 69
Apple M4753 manual Display