View Single Post
Old 3rd Jan 2021, 8:24 pm   #19
Mark1960
Octode
 
Join Date: Mar 2020
Location: Kitchener, Ontario, Canada
Posts: 1,265
Default Re: Non-working Commodore PET 3016

It is odd that the -5v is measuring so accurate as -12v, I’d agree with Sirius to check the markings on the device, but maybe also take a close look to see if it might have been changed at some point. Look for signs of hand soldering or post a close up of the back of the board.

Edit: just saw colin’s reply, so looks like -5v supply is ok after all.

Last edited by Mark1960; 3rd Jan 2021 at 8:27 pm. Reason: Cross posted
Mark1960 is offline