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Inverted Colors

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Ken Layton:
Nintendo's inverter board gets it's power from the monitor's main board.

Also remember that Nintendo's inverter board uses a different connector pinout that standard arcade monitors.

Trimoor:
I tried fiddling with it and replaced a cap, but still nothing.  I don't have a video amp, and I'm guessing it would cost more than the monitor itself.  The inverter board is comprised of 6 transistors, so it is definitely analog.

I took a pic of my scope showing the green signals for both the normal and inverted output, and they look to be proper.  This raises more questions.  If it's outputting a properly inverted signal, why won't the monitor work with it?

Could I modify the inverter board to work with lower signal levels?  How?

StephenH:
Here is what color inversion does to the colors, to see if it is working:

Black <-> White
Red <-> Cyan
Green <-> Magenta
Blue <-> Yellow

Trimoor:
I know what the inversion does, but the monitor displays nothing when I plug it into the inverted output of the inverter board.  The scope shows a solid signal on the inverted output as in my pic above, but the minitor will display nothing.  The pinouts are correct, the board has power, and I can see a clear signal on each of the pins.  What could be wrong?

Ken Layton:
Has the monitor had a capkit recently?

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