First post, by Durandal
- Rank
- Newbie
Hey all,
I recently bought a Commodore 128 with a 1901 monitor and can't seem to get it to display anything using a chroma/luma/audio cable. Whenever I try using the cable it displays some intermittent flashing diagonal-ish stripes of colours (looks like green and purple mostly) that eventually sort of "die down" and almost go away completely. I have to turn the monitor and C128 off and on again to get them to show up in full force.
Further info + what I've tried already:
- the cable is an official 8-pin Commodore cable and is confirmed to be working perfectly with my C64C and the 1901 monitor
- RGBI in 80-column mode on the C128 works fine with the 1901
- Just to test it, I stuck some wires into the video socket connected to an RCA jack on the other end, and successfully got composite video on a regular TV in 40-column mode
- RF also worked fine on that same TV
- checked for cold solder joints on the video port and everything has perfect continuity
So what gives? 😢 😢 I tried doing the same thing as I did with the composite wire, but for the chroma and luma wires, and it didn't work. I got the exact same symptoms as when using the official Commodore cable.
Other than this problem, the C128 is working fine in every other way - I've tested it with 3 different disk drives and a datasette in both 128 and C64 mode via RF and it's all working great...
(PS. also posted on Lemon64)