Been recently trying to also resurrect an Apple II+ from years gone by, and am stuck on the Keyboard.
Anyone have suggestions?
When I type various random keys like 12345 or QWERTY or 67890, I sometimes get the letter M in the mix. Happens randomly (once in a while) and doesn't matter the keys I hit. In addition, I do get a few "double" key hits on the letter T. Not sure if this is related or not.
Originally I had 14+ keys which didn't work at all, so I took the whole thing apart (see pictures) and did a solid cleaning. Now just the M key remains with problems (and the T) so I am close.
How do you troubleshoot? This model keyboard is not the older style switch type, is it even possible to use a multi-meter to test leads coming off the keyboard PCB? or should I test it at the encoder?
Most people have good examples of how to deal with older style keyboards, just not this type.
Any suggestions would be great.
Is this a keyboard problem or encoder?
I am excited to get this Apple II working, but the keyboard has frustrated me.