Hi -

I have a ViewSonic VP140 that shuts off after a few minutes.

The green light on the power supply stays on and there is still a signal coming from the computer. The power light on the monitor goes off and won't come back on.

Any help would be appreciated.

Thanks.
- Matt

I should also add that the problem seems to get progressivly worse.

First time the monitor is turned on it takes about 10 minutes to shut off. I have to unplug it for a few minutes to get it to turn back on. Once on it will shut off in a minute or so. Unplugging again and letting it sit will result in it only staying on for a few seconds, etc....

I'm going to open it up and dive in with my multi-meter when I get home tonight. I've done a lot of research on possible problems and schematics as well as monitor repair techniques but if anyone can offer some experienced guidence as to where I can begin my search that would be helpful.

Thanks.
- Matt

Check the DC adapter is producing 14V on load and if you have a scope check for ripple.

I have the service manual but it is an 18M PDF

Rich

dc adapter is producing almost 13.

I'll see if I can borrow a scope tonight and check out the rest.

Thanks.

Can you use winzip to make the file smaller?

I setup one of my email accounts to be able to take attachments of that size temporarily. It should go through if you send it to:
matt.balogh@wingspaninc.com

Of course if you can zip it up smaller that would be helpful.

Thanks.
- Matt

Winzip or Winrar do not compress PDF's as they are already compressed the only reason for using either is to split the files into more managable sizes.

Rich