Hey all,
I've been trying to repair a VIC-20 for a while now, and after a lot of doing, it finally boots up and I can type and run programs. There seems to be only one remaining problem: The 2 key isn't working at all and the 4 key is stuck on caps, so it just spits out '$' all the time.
From my own (limited) understanding, this points to a bad 6522 interface adapter chip. I guess I wanted a second opinion before I went to eBay searching for yet another chip. I notice there are two 6522 chips, would I need to replace both of them?
Thanks!
Dead keys
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- mrr19121970
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Re: Dead keys
If they are both socketed, swap them over and try.