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Old 03-06-2017, 01:05 PM
bigaudioal's Avatar
bigaudioal bigaudioal is offline
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Location: Gaithersburg, MD
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Quote:
Originally Posted by Electronic M View Post
Double check you wired in the caps correctly, and that they are the correct value.

Try disconnecting that resistor and see if it goes back to some semblance of previous operation.

Do you have a B&K 1075/76/77 analyst?...If so try using it's IF output to inject into the IF system. You could also inject video past the detector to check if a video stage failed.
I double checked that the caps were all 270pf (like originals) and that they were wired in the correct spots. I also ran the set with that resistor connected and disconnected to the contrast (AGC) pot. Without it connected, no audio and contrast pot has zero affect on raster. With it connected, audio returns and raster is affected by adjusting the control. Just no picture. I do not have an analyst. Only thing I have for injecting a direct signal would be a VCR. Guess I could pass that video signal through a cap into the grids of each video stage, right?
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