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CBM II - B128-80 screen issues

fm2606

Member
Joined
Apr 17, 2021
Messages
13
Location
Florida's Space Coast
I was finally able to test my B128-80 yesterday with a new 5-pin DIN C64 video cable. I did a continuity check to verify which RCA jack went to pin 4 of the DIN connector which, to my understanding, is the composite video signal.

When I plugged everything in and turned it on this is what I got ( a white screen with almost uniform black lines in columns).

https://imgur.com/a/rhPoRGp.

After that I tried the jack that went to pin 1 (video out) and got a black screen with tiny white lines randomly appearing on the screen.

Any thoughts on a problem and/or solution?

Thanks
 
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