DOS TRACE VOLTAGE

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viewu
Posts: 13
Joined: Tue Feb 20, 2018 7:51 am

DOS TRACE VOLTAGE

Post by viewu »

My DOS worked fine for a month, then it failed.I checked it with a meter and found a short in the reference voltage point 3.3v and U1 pin 1. This is duzz because the problem is somewhere in the trace line. I have removed components and the failure is still there. I would like to view a copy of the trace photo to determine the faultin the DOS.
viewu
Posts: 13
Joined: Tue Feb 20, 2018 7:51 am

Re: DOS TRACE VOLTAGE

Post by viewu »

I just got the traces, and man are they pretty. I can trace more. If you think the schematics are something, wait till you view the trace circuit.
viewu
Posts: 13
Joined: Tue Feb 20, 2018 7:51 am

Re: DOS TRACE VOLTAGE

Post by viewu »

This one is a hard one to find.
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This help me to find short  in U1, 3.3v ground.Thi
This help me to find short in U1, 3.3v ground.Thi
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