> 2. for a NMS82xx the composite video signal is generated with a MC1377
chip. It
> uses the RGB info from the VDP, but also the Csync signal. Perhaps the
timing
> for one of those signals has changed a little bit in the V9958. If this is
the
> case, then the timing when the colour burst should happen in the cvbs
signal,
> will also be shifted (and wrong).
> You can adjust this by adjusting the variable resistor VR301. It is
located on
> the separate video board of the NMS825x next to the big black MC1377 chip.

Tried it. I get color ,4,4 (startup) to go greenish or yellowish, When this
happens Defnite bands of blue, yello & red can be seen as well.
When the background colour is changed, it still shows the correct colour for
a sec then falls back, maybe the signal is weak.

I'll try to clean the power supply.

JP


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