I have had a lot of issues with the luma/chroma related to the display being used, be sure you have a known working for a C128 display, the right cables, the correct switches on the display. What are you using for your display? A 1084? On Wed, May 2, 2018 at 9:20 AM, J. Alexander Jacocks via vcf-midatlantic < vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:

All,

I spent all this past workshop attempting to repair my C128DCR's luma/chroma output, which seems to have lost the chroma. Does anyone have a spare board? I need to get something working by VCFe, and I also could use another board, to compare.

Drop me a line, if so. Better, if you're somewhere near DC, so I can come and get it.

Thanks! - Alex