dabone Posted December 23, 2023 Share Posted December 23, 2023 I've got a NTSC TI99/4a and I purchased the TMSRGB mod and a TMS9928AN and I'm trying to get output using the RGB2HDMI with the analog board. Has anyone else done this? I'm getting RGB out, but struggling on the RGB2HDMI portion. Quote Link to comment Share on other sites More sharing options...
dabone Posted December 23, 2023 Author Share Posted December 23, 2023 Modifying the Camputers Lynx profile, I'm close, but the palette is off to me. 2 Quote Link to comment Share on other sites More sharing options...
TimC Posted December 29, 2023 Share Posted December 29, 2023 I was thinking of doing the same. Is the TMS9928 a drop in replacement for the NTSC 9918? If so, I have several RGB2HDMIs I can test with this setup on my TI. Quote Link to comment Share on other sites More sharing options...
dabone Posted December 29, 2023 Author Share Posted December 29, 2023 You need to add some 560ohm resistors, and lift some components, and of course you have to run a cable out. Quote Link to comment Share on other sites More sharing options...
dabone Posted December 30, 2023 Author Share Posted December 30, 2023 Here's the thread I followed. 1 Quote Link to comment Share on other sites More sharing options...
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