WTB/TF: Medium Res 25" monitor chassis - K7500 / U5000

bfuehring

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WTB/TF: Medium Res 25" monitor chassis - K7500 / U5000

Hi all. Trying to help out someone local here, but I'm getting frustrated....I have never worked on a medium res monitor, let alone a 25 inch monitor. It's always been 19 inch stuff for me, so I don't have any parts, tubes, games, etc. for testing this, and they are about 45 minutes away. Each time I try to fix something, I have to drive way out there to test the results, and it is getting on my nerves. Anyway, an acquaintance has a Cruisin USA. Had vertical collapse. WG U5000 monitor. I took the chassis home and did a cap kit. Brought it back...still collapsed. So, I bought the vertical sweep upgrade, and installed it, brought it back. Still collapsed. I found another person locally with an "untested" U5000 chassis. Installed it. Dead. Found a third person locally with a "probably working" K7500 monitor chassis and yoke. I changed the yoke from the U5000 to accept the K7500. Also switched convergence rings (the U5000 rings basically crumbled). Installed the K7500, and it is full-screened, but basically everything is WAY TOO BLUE. I changed the transistor on the neckboard, but still everything was blue. I didn't know which transistor on the chasis was responsible for blue, so I gave up.

Basically, I've been up there multiple times. I currently have a tube with a K7500 monitor's yoke and convergence rings, and I just want to get something that will work for sure next time I go up there. Maybe someone wants these other parts in trade? I have:

U5000 monitor chassis doesn't power up.
U5000 monitor chassis has vertical collapse. New cap kit and vertical upgrade kit installed.
K7500 series chassis that works, but is all blue.

Can anyone help?

I'm in Kansas City.

Thanks
 
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