QUOTE (deforrest @ Oct 4 2005, 02:21 AM)
I have the lcd panel is hooked up but the panel screen shakes...is there a way to repair this? We are using a View Sonic VG150. I was told I could spray cold air on the chips to find out which ones are bad are there any other suggestions...any help would be great.
I had a similiar problem with a VG151 I used a heat gun on the back to find the problem. For me it was a bad 1uf Capacitor somewhere.

When I first turn on my monitor I'd have a similiar problem but after a while it would clear up so someone told me to either freeze or heat the PCB to find the problem. Since i didn't have freeze spray, I just ran a heat gun (Ok my wifes embossing heat gun) over the back of the exposed PCB until the problem cleared up. I was able to narrow it down to two caps, I replaced both of them but only one of them needed to be replaced. I'm not the best at soldering so it was a little hard for me to take off the SMD capacitors but everything works fine now. I'm not sure but I think this technique only works with Caps though.
Another method I heard was to do in circuit tests with an ESR. Most ESRs are around $70+ but I'm cheap.
Hope this helps
JDJr