Reply To: TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) – wrong colors, lacking blue

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August 17, 2023 at 5:36 AM #57783
Dr.OG
Participant

    Unfortunately I don’t have an oscilloscope.
    Checked the connections with a multimeter, solders seem to be fine. Actually true blue is missing, but I have i.e. magenta, which contains some blue.
    I feel I’m stuck with the problem. I can’t investigate it further without special equipment (i.e. oscilloscope) which I don’t have. Besides I’m not good in SMD soldering, and I don’t want to make things worse during experimenting…
    MB will send me another board, as they consider the possibility of a faulty board at this point.
    If that won’t work either, I’ll send my TI99/4A to to BetaGamma in Greece for further inspection.