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I have a B&K 1076, I can try a few things with it. Its out in the garage, but will be coming in soon, should be easier to work on then. the plan will be to try injecting a composite signal and see if that works better. I also plan to scope the output from the detector diode and compare that to the composiit signal from the digital TV tuner. I have done that in the past just to see how well the RF/IF/detector are working (by comparing the dvd comp signal on one trace with the comp from the set on the other). that gives a real good indication of how well the tuner and IF alignment are working.
I have gone thru and replaced or checked just about eveything in the vert osc section, the only thing left I I have not checked (since I dont really know how) is the VDR, but I have one coming soon so I will just replace that. its the one right after the .0082 cap from the plate of the vert out.
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08-02-2011, 07:08 PM
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