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This mini forum is intended to provide a simple means of discussion about the Commodore  PET 30xx computer. If you want to share your own experience or memories, or add relevant information about this system: post a message! For other purposes like sales messages, hardware & software questions or information requests, please use our main forum.

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Sunday 12th October 2014
Régis Schmidt (CNRS Meudon, France)

This is the first computer I worked with. It was my first job, and this CBM 3016 were extended to 32Ko RAM like the CBM3032 model.
I did many interface boards for this model and many programs in 6502 assembler too.

Monday 8th May 2006
Yves McDonald (the North, Quebec, Canada)

Well, at least you know the video circuits are working. Looks like the CPU isn't resetting right and isn't executing its code in ROM and fails to clear its video RAM. I had same problem with old Apple 2. It's probably just some corrosion build up on chip leads or sockets. Cleaning up the contacts with a soft pencil eraser and/or reseating the chips will be enough to restart your vintage computer.
Hope that helps.

Friday 6th February 2004
A Hodson (England)

When I switch my PET on the screen is full of rubbish. It used to work fine sometimes but not now. Can it be fixed?

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