Hi, everyone. I picked up a WG K7602 as a replacement for a smashed Pole Position monitor. When hooked up, I see the game clearly, but everything is in shades of green. I've gone through a few routes to diagnosing the issue and this is what I've found:
- Everything looks fine when using another K7602 monitor (same model, swapped to test from another game).
- Swapped the green transistor on the neck board with the blue, no change.
- Connected the green, blue and red connections from the neck board with the ground, green was bright, blue and red only showed up on the edges.
- Swapped the red and green wires at the molex connector on the main board, no picture. When I switcehd them back, the picture returned, but there was some blue on the left area of the screen. Once restarted, back to only green shades.
- Tried adjusting all the color pots, only the green had any effect on the screen. Red and blue drive and cutoff didn't do squat.
At this point I'm guessing it's a bad tube. Tried tapping the neck some, no change. From what I've read, this doesn't look like a cap kit solution. Any help would be appreciated!
- Everything looks fine when using another K7602 monitor (same model, swapped to test from another game).
- Swapped the green transistor on the neck board with the blue, no change.
- Connected the green, blue and red connections from the neck board with the ground, green was bright, blue and red only showed up on the edges.
- Swapped the red and green wires at the molex connector on the main board, no picture. When I switcehd them back, the picture returned, but there was some blue on the left area of the screen. Once restarted, back to only green shades.
- Tried adjusting all the color pots, only the green had any effect on the screen. Red and blue drive and cutoff didn't do squat.
At this point I'm guessing it's a bad tube. Tried tapping the neck some, no change. From what I've read, this doesn't look like a cap kit solution. Any help would be appreciated!
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