User Guide

Chapter 5 Troubleshooting Guidelines

340S2 61 Rev : B

5.7 Touch Pad test error

Symptom: An error message is shown when the Touch Pad point is enabled

Touch pad error

Correct it

Is Touch pad cable

connected properly ?

Try another known good touch pad module and

cable

Test Ok ?

Replace the faulty parts

Replace motherboard

Board level troubleshooting

Check KB controller

PC87570 for cold solder?

Re-solder

Yes

Check one of the following parts or signals on the motherboard maybe

defective, use an oscilloscope and replace it.

1. KB Controller

–

PC875