> Is UD11 the only empty socket? If there's a chip > in UD12 I'd remove it in case it's defective or > has bent pins etc.; it'll be an option ROM of some > sort.
Done, I'll see if my programmer can read it once my only working windows box stops updating itself, sheesh. > Vcc. I would connect the monitor though instead of > just relying on the buzzer for signs of life; if > there's any display at all it might give a useful > clue. Hm. Nothing at all from the monitor and checking the voltage at 10 + 11 on the iron lump shows nothing - I didn't check them over the weekend as they only run the monitor and the other pins seemed ok at 18 and 8VAC. > I'd also check UD7 for poor contact or bent pins Had that out earlier and it seems ok. > Finally, I'd ask on the Vintage Computer Forum; > even without me (;-) there are some very > knowledgable PET folks there. OK :) -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?
