Otrona Attache power supply woes...

[dwight elvey]

> From: derschjo at msu.edu
>---snip---
>>
> 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...
> Josh

Hi Josh
 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?
Dwight

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