28 Oct
2018
28 Oct
'18
2:03 p.m.
8640 looks like a date code; most dec chip numbers begin with "DC".
?On 10/28/18, 6:53 PM, "cctalk on behalf of Rob Jarratt via cctalk"
<cctalk-bounces at classiccmp.org on behalf of cctalk at classiccmp.org> wrote:
I am trying to trace the reason why the CPU on my Pro 350 is apparently
being constantly reset. I have reached a DEC 8640 chip. Does anyone have a
pinout for it, perhaps even a datasheet, so I can understand what it is
supposed to do and whether the pin is an input or an output?
Thanks
Rob