Acer TravelMate 4740 Service Manual page 88

Peripheral Devices-Related Symptoms
Print problems.
Keyboard/Touchpad-Related Symptoms
Keyboard (one or more keys) does not
work.
Touchpad does not work.
IMPORTANT:If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined
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Symptom / Error
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Action in Sequence
Run the printer self test.

Reinstall the printer driver.

Test or replace the printer cable.

Test or replace the printer.

Test or replace the mainboard.

Action in Sequence
Reconnect the keyboard cable.

Test or replace the keyboard.

Test or replace the mainboard.

Reconnect the touchpad cable.

Test or replace the touchpad board.

Test or replace the mainboard.

Chapter 4