Dead keys

Modding and Technical Issues

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javelinatina
Vic 20 Newbie
Posts: 4
Joined: Tue Mar 26, 2019 8:00 am
Location: Bham, AL

Dead keys

Post by javelinatina »

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!
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mrr19121970
Vic 20 Nerd
Posts: 873
Joined: Tue Jan 19, 2016 9:22 am
Location: Germany
Occupation: IT service manager

Re: Dead keys

Post by mrr19121970 »

If they are both socketed, swap them over and try.
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