Nicolas 2000
Experienced Member
I've just tested my C128D. It appears to boot OK in C128 mode, also in C64 mode. I've successfully loaded games in C64 mode. Problems:
-no power LED. Might just be the LED itself. Ignore for the moment.
-bigger problem: part of the keyboard doesn't work. In particular:
...-everything between 8 and DELETE on the top row above the letters
...-the P and the three keys to the right of it
...-the 8 and 5 on the numpad.
Possibly more; I'm not sure if the numpad + and - are supposed to do anything in BASIC, they're not.
So would this problem likely be located inside the keyboard or inside the C128D? I'm not familiar with the technology, but as the nonfunctional keys appear to be grouped, I'm thinking either cut traces in the keyboard or something with the scanning matrix in the C128D?
Things I've tried: reseat the keyboard connector. Test cable for continuity: without further disassembly I could check all but 1 wire and all of them found their way to the connector, so I think the cable is OK.
-no power LED. Might just be the LED itself. Ignore for the moment.
-bigger problem: part of the keyboard doesn't work. In particular:
...-everything between 8 and DELETE on the top row above the letters
...-the P and the three keys to the right of it
...-the 8 and 5 on the numpad.
Possibly more; I'm not sure if the numpad + and - are supposed to do anything in BASIC, they're not.
So would this problem likely be located inside the keyboard or inside the C128D? I'm not familiar with the technology, but as the nonfunctional keys appear to be grouped, I'm thinking either cut traces in the keyboard or something with the scanning matrix in the C128D?
Things I've tried: reseat the keyboard connector. Test cable for continuity: without further disassembly I could check all but 1 wire and all of them found their way to the connector, so I think the cable is OK.