PinOut of DEC F11 Chips in a Professional 350

[Patrick Finnegan]

On Sat, Oct 27, 2018, 04:06 Rob Jarratt via cctalk <cctalk at classiccmp.org>
wrote:

>
> I have been tracing the source of the RESET, because as I have said it is
> oscillating, and it seems to go through a *lot* of logic, and I haven't
> fully traced the source of the oscillation yet.
>

Have you checked the PSU output? My first guess would be bad caps in the
power supply.

Pat

>