Started by willow3411, 19:58, 14 February 22
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Quote from: Nworc on 00:42, 19 February 22Excuse me, I cannot believe that this is a "bad copy". What I see on the photo is a genuine chip made by General Instruments, produced in Taiwan. Taiwan is not China, Taiwan has a high tech industry comparable to South Korea. I suspect that your keyboard is not working, and that's why you say the chip is not working.If you wish, you can send me the chip to check what's wrong. I think it's just a simple issue with the pull-up resistors. I mean, does anyone here know for sure what the correct value for the resistors is? The CPC keyboard logic is very picky in this, sometimes it stops working if I make an angry face ...
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