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Old 7th Oct 2022, 4:15 pm   #167
BrackenFix
Tetrode
 
Join Date: Sep 2022
Location: Newton Abbot, Devon, UK.
Posts: 75
Default Re: 1978 Commodore PET project

Quote:
Originally Posted by SiriusHardware View Post
It may not seem like it, but removing / replacing an IC and seeing no change is actually good in one respect - it means you've successfully carried out the work without introducing any further faults.

Sorry it didn't turn out to be UE7, as Tim said the 74LS244 buffers (UE7) have a bad reputation for failure and as Tony said, 2114 RAMs (UF7) are basically just regarded as electronic fuses...

...So it'll probably turn out to be UF9 after all!

How are you taking the ICs out, in bits or in one piece?
Took them all out in one piece with no damage to the chips or the board

Miracle!!!!!!
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