SterlingRush
Well-known member
This is more of information sharing, as I was able to fix the problem(s), just wanted to give another reference in case others run into this issue.
K7000 25" std res chassis was brought to me, having the black jail bar issues on the screen. We performed a rebuild on the chassis, jail bars went away, but new issue arose. So the issue I will picture below, is what was fixed, by what I will list further below. I'm not sure of the exact fix for this, but this will at least give guidance, of a few spots to check and redo on the chassis.
OK, rebuild consisted of:
-Cap kit
-Flyback
-STR30130
-D1398
-D19, D20, D23, D24
-C38
-New remote board
-Desolder and solder of header pins, pots, ect....
Results gave me this:
No amount of adjusting or tweaking, would produce any better results. That was as big as the image would go, with that constant distortion. Looked up Fromm's flow chart, and went through the process. Swapped out IC1, IC2, and C50, tested IC3 pin 6 for +24DC. Same result, had approx +20.3 DC at this point.
K7000 25" std res chassis was brought to me, having the black jail bar issues on the screen. We performed a rebuild on the chassis, jail bars went away, but new issue arose. So the issue I will picture below, is what was fixed, by what I will list further below. I'm not sure of the exact fix for this, but this will at least give guidance, of a few spots to check and redo on the chassis.
OK, rebuild consisted of:
-Cap kit
-Flyback
-STR30130
-D1398
-D19, D20, D23, D24
-C38
-New remote board
-Desolder and solder of header pins, pots, ect....
Results gave me this:
No amount of adjusting or tweaking, would produce any better results. That was as big as the image would go, with that constant distortion. Looked up Fromm's flow chart, and went through the process. Swapped out IC1, IC2, and C50, tested IC3 pin 6 for +24DC. Same result, had approx +20.3 DC at this point.
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