Otrona Attache power supply woes...
dkelvey at hotmail.com
Fri Sep 19 09:21:18 CDT 2008
> From: derschjo at msu.edu
> I replaced the TL494 this afternoon (thanks to a local electronics store
> that actually has useful stuff!) but it does not appear to have made any
> difference. I get the same voltages on the TL494's pins as I did
> before. Any other thoughts?
> Thanks once again...
Are you still getting the high voltage on the vref pin?
I don't recall you mentioning the value of pin 4?
The only place I can see that would cause vref to be
pulled high is if D15 were shorted.
Also, what is the voltage on pin 8?
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