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Author Topic: A500 keyboard problem  (Read 1010 times)

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Offline Lockon_15Topic starter

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A500 keyboard problem
« on: December 01, 2006, 04:22:24 PM »
I can't reset my A500 with usual CTRL+AMIGA+AMIGA hotkey. System boots fine, I can turn on/off CAPSLOCK both in fuction and on LED. All alphanumeric and function keys are also OK.

Tried to sort out motherbaord or any custom chip problem with spare keyboard. Everything works 100% so it seems something is wrong on keyboard PCB. Oh, I have checked keybaord matrix for dust and dirt, that's fine too.

I have some electronics knowledge, so I guess it should be something related to the RESET ACTION circuit - either 555 timer or transistor. Or maybe it is keybaord controller?

Ideas, anyone?
A500+/KS3.1/GVPA530/2MbChipRam+8MbFastRAM 2GbCF/YAMAHA CDRW