Re: Non-working Commodore PET 3016
It does not look too bad - I assume the close up shows the missing solder mask only and not bare board on the Ground line? Check anywhere there seems to be any furry marks - especially between pins or between the leads of capacitors/resistors and give it a light brush - be careful not to use nylon if possible - make sure you have a ground strap and do not do it for too long if you have to.
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