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Hi Everyone, I'm trying to repair a 3040 dual floppy which simply doesn't seem to work at all when I power it on. Looking at the circuit board I can see a capacitor has blown up and is all black and crumbling. It is in position C31, though all that part of the circuit board is black...

Hi All, I have a strange problem with my 8032 and hope someone can help. When I boot it up, the cursor is an inverted @ symbol, I can type but when I type something invalid and press Return it takes much longer than it should to process and show the "?syntax error" message and if I do this 4...

Hi Everyone, This forum is my last hope of fixing my 8032 which I've had for a while but have only just got round to trying to get it to work. When I first got it, it didn't do anything when powered on. However after replacing a couple of bad ROMs it now does the familiar sound when booting...

I've had a 4032 PET for some time now and it had been working fine until today when I went to switch it on and after a few minutes it suddenly went off. Subsequent reboots have left me with a blank screen, I don't even get the usual sound that happens on power on. The chips don't seem to be...

I've been looking around for the edit rom file that will show 80 cols on a 4032. I've done all the hardware changes already but am just missing the rom. I've checked on http://www.zimmers.net/anonftp/pub/cbm/firmware/computers/pet/ but no luck, edit-4-80-n-50Hz.bin is what I need but it...