820-3332-A Track Pad works but won't select a object when clicked.

[KC Micro Tronix]

I put this one away after a few hours. Unit had water damage and a PP3V42 short which I repaired only to find out that the "click" does not work on the track pad. I have to use a external mouse. I thought the track pad probably got wet so I pulled the glued in battery and the track pad only to find out it was not the track pad.

I put this one back together before I smashed something and have moved on with my work load but I have a question.

Is the "click" a discrete line I can check resistance on or part of a data package that goes to U5701?

 

[2informaticos]

Check R5703.
PICKB_L must drop to 0V when TP click is activated.

 

[KC Micro Tronix]

Well that was excellent advice. I was not sure what data line was actually the "click" Thanks so very much! I was able to feel confident enough to tear out the battery and track pad all over again to replace it once more. I must of had a bad trackpad. These models are crazy hard to change trackpads and I got to do it twice.

Unit came in for now power so this was a nice bonus after I fixed the LB