cf28 parts to cf29s

I have quite a few cf28s that have the 600MHz processor and I was curious if the touchscreens for these change out with the touchscreens on the cf29s. I was horrified to find out that the cf28Ms are not worth much on the open market unless I part them out and most of the 29s I have don't have working touchscreens. And just for kicks I dismantled a 28 entirely and took a few picutres for you guys just because I thought it looked pretty cool all in pieces

 

Nope... Won't swap... There are a few threads around here about what works with what....

Why don't the CF-29 touchscreens work? Have you diagnosed the failure point? (Cracked screen? Bad inverter? Blown fuse?)

 

i know that on some of them they simply won't calibrate, i get that stupid unexpected error when i hit enter to complete calibration. on other they simply just won't respond, I haven't really found any reason to pursue it much further because most of the people I sell the toughbooks too are toughbook savvy and either fix the touchscreen themselves or simple don't want the touchscreen. If I could get a lead on what's wrong (read the thread about them and didn't help me too much) I may go back over them because, in my opinion, selling something that isn't fully operable is bad business even if the customer doesn't care about it. how would i go about testing the inverters, i have no cracked screens

 

There are a few threads recently discussed (Less than 5 pages back I think) that discuss this. If the screen is on but the touchscreen just doesn't work... It could be that the driver is corrupt or installed incorrectly. Other times there is garbage around the touchpad edges... This is especially true if it was used in a harsh environment. Garbage builds up and presses down onto the touchpad. Since the touchpad on the Toughbook works by pressure instead of finger heat as 99% of other laptops do... This sends false signals to the touchscreen as the touchscreen thinks the touchpad has control. You can slide a VERY thin (.25mm or .5mm thin!) piece of plastic around the touchpad edge to try to fish out gunk and garbage that may be the culprit. GO EASY... Don't use too much pressure or you may just lodge it in there even more!

Other threads talk about inverters inverters and fuses... Look for Ohlip's input... He's pretty much the king of that around here...