> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Patrick
> Finnegan via cctalk
> Sent: 27 October 2018 13:48
> To: General Discussion: On-Topic and Off-Topic Posts
>
> Subject: Re: PinOut of DEC F11 Chips in a Professional 35
On Sat, Oct 27, 2018, 04:06 Rob Jarratt via cctalk
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? M
-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel
> Chiappa via cctalk
> Sent: 27 October 2018 02:56
> To: cctalk@classiccmp.org
> Cc: j...@mercury.lcs.mit.edu
> Subject: Re: PinOut of DEC F11 Chips in a Professional 350
>
> > From: Rob Jarratt
>
> I'm pretty sure the other two have the same orientation.
They do; I looked at the KDF11-A prints in the /23 print set, and then looked
at an actual /23. (I should put a hi-res picture of one on the CHWiki page;
the one that's there is pretty miserable.)
Noel
> From: Rob Jarratt
> The chips where I believe the RESET is oscillating on pin 23 have been
> labelled E151 and E152 ... But I am not really sure if I have
> identified them and the pin correctly.
E151 is the main CPU chip:
http://gunkies.org/wiki/F-11_chip_set
E152 is the KE
