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Its a K7191 with a P538 board. When I plug it in, I get 40VDC when I check the red wire on R301--R103 also heats up pretty sharply. So far: Capkit done, flyback changed, IC4 checked=ok, R103=3.0ohm, D19-D22 checked and ok, C55 swapped with another one, reflowed a bunch of joints but they...

I pulled this from a defender and have never worked on one before so I wanted to poke the web before diving in. I haven't done anything to it as of yet.. on power up I hear the crackle of the tube and see a faint neckglow but there is no picture?? Any ideas? I've heard there are no...

I just received this machine after being stored for about a decade in a dusty (but dry) barn. Took a shot and powered it on and the screen comes up but the display is all scrambled. I pulled the boards and re-seated all the removeable chips--no difference. Does anyone have experience with...

I just picked up a u2000 and can't get the picture to hold horizontally or vertically..I replaced the H. hold pot --got a bit better, checked q700, it's fine, checked d700, it's fine. I'm just curious what the gurus say should be my next step? (it's wired to a jamma board currently, with the...