Need assistance with creating a RGBtoHDMI profile for the Tandy 2000 640x400 high resolution video adapter

jasa1063

Tinkerer
May 30, 2022
42
25
18
I saw the recent video about the Tandy CM-1 monitor on Adrian Black's YouTube channel. Finding out this monitor was made by Mitsubishi and was used on the PC-9801 computers, I tried the RGBtoHDMI profile for the PC-98 400 lines, but the text output blinks and the graphics mode is distorted. I am using a straight through DB9 connector from the RGBtoHDMI to the back of the Tandy 2000 high resolution video adapter. If anyone can provide some further insight as to what is needed to make this work, it would be greatly appreciated.

Thanks!