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Old 16th Mar 2021, 8:25 pm   #1068
Mark1960
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Join Date: Mar 2020
Location: Kitchener, Ontario, Canada
Posts: 676
Default Re: Non-working Commodore PET 3016

Quote:
Originally Posted by SiriusHardware View Post
Colin, sorry, the idea of switching out half of the RAM is a good thought, but if you can just try the above first, please.
I agree with Sirius, try #1065 first.

Switching out half of the ram might not work if the fault is caused by a stuck output on one of the ram chips, even if the bad chip were no longer selected it would probably still be pulling the data line and blocking the ram in the other bank.

Hopefully #1065 will point to only one bad data line on the system ram, which is then down to only two bad chips, and a fifty-fifty chance you can pick the right one to remove.
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