I compared 2 monitors...an "inverted" K7000 from a Playchoice cab (yes it was a factory monitor), and a non-inverted standard K7000. The inverted PCB was labeled P447A (and is a newer monitor), whereas the standard one I'm comparing to is older and labeled P447.
Only differences I see, is that in the video section right near the video input plug, is that there's 3 sets of resistors and jumpers. On the inverted one, there's a third resistor and the jumper is moved over one spot for each set. On the non-inverted one, that third resistor isn't there and the jumper is in it's place.
Also, there's 2 sets of holes for the 3 non-polar caps, and I believe the inverted one is using the right set of holes and the standard one is using the left set of holes.
Last but not least, Q4 is missing (cut off) from the inverted one but I believe this is apparently an optional mod for a blanking circuit.
So does anyone know, if I simply remove 3 resistors, move over the jumpers and the caps will that turn the inverted one into a normal one?
If no one knows, I plan to try it anyway and will post pics, better details and the results
This way if you want to use a K7000 in a Nintendo cab, you can invert it right on the chassis, and vice versa if you have one of these oddball inverted ones you want to reuse for non-Nintendo purposes 
Only differences I see, is that in the video section right near the video input plug, is that there's 3 sets of resistors and jumpers. On the inverted one, there's a third resistor and the jumper is moved over one spot for each set. On the non-inverted one, that third resistor isn't there and the jumper is in it's place.
Also, there's 2 sets of holes for the 3 non-polar caps, and I believe the inverted one is using the right set of holes and the standard one is using the left set of holes.
Last but not least, Q4 is missing (cut off) from the inverted one but I believe this is apparently an optional mod for a blanking circuit.
So does anyone know, if I simply remove 3 resistors, move over the jumpers and the caps will that turn the inverted one into a normal one?
If no one knows, I plan to try it anyway and will post pics, better details and the results
Last edited:

