Hello, sorry to bring this back to life, but I was looking for this info and this is the forum that kept comming up in my search (because somone else was asking for this information), I cant find it anywhere else so I figured it out with trial and error. I hate being the only one to benifit from this sort of thing, so here it is:
This is the pinout for a TSM9920-20 Rev. N touch pad. other lables are Cirque 9920
[PLEASE SEE THE NEXT MESSAGE FOR THE IMAGE, APPERENTLY ITS A FORUM RULE]
-Jim