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Old 14th Feb 2020, 9:46 am   #105
John Earland
Hexode
 
Join Date: May 2013
Location: Middlesbrough, North Yorkshire, UK.
Posts: 442
Default Re: Commodore PET 3016

Hi guys - right update!

I've just switched the PET on and nothing! Nothing on the screen at all! I then decided the replace all the chips with newer ones (the ones that are socketed of course) and it now seems to be working!

Last night the older chips were working fine and now this morning not. I'm wondering whether the board is affected by the cold?? Or, as you've pointed out the board's soldering is being temperamental!

Are there any checks I could be doing? It seems to be loading software from tape although no longer automatically plays them (as it once did). I have to type in RUN but at least it seems to load them.

I am going to keep the PET on for about an hour or so to see what happens. However, I've already noticed that some of the keys that were working have stopped e.g. ! and " top left
:-(
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