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Old 20th Feb 2021, 12:26 pm   #606
ScottishColin
Heptode
 
Join Date: May 2012
Location: Perth, Scotland
Posts: 631
Default Re: Non-working Commodore PET 3016

Hi - I'll get on with this today and report back.

fyi I have got two new ICs and sockets for UE9/10 if we decide they need replacing.

Colin.


Quote:
Originally Posted by SiriusHardware View Post
Colin, could you please scope the following pairs of pins for us, this time with the data pins 26-33 of the CPU disconnected from the system so that the CPU will run. I know it runs with just several data pins connected but we need all the data buffer outputs on the CPU side to be connected to the same thing (...nothing).

UE9
2,18
4,16
6,14
8,12

UE10
2,18
4,16
6,14
8,12
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