Quote:
Originally Posted by DaveWM
I would say anything rated more than 100v on the .01 should be fine. That being said its very UN likely to be the problem. Disc caps are very reliable.
I did some more checking on my set, the one in the video with the problem. . The CRT would not produce any lines in setup mode unless i advanced the red gun fully CW and then advanced the bias pot about 1/4 of the way. I tested the CRT with my CR-70 and it tested quite weak (well into the red zone) with very little cut off response.
So with that I presume my issue is a weak CRT (its not very bright either).
I suggest you try checking your CRT again, and if confirm that the CRT tester is working properly.
IF your CRT is good with a known good CRT tester, you should also consider checking the filament voltage at the CRT just to make sure the filaments are getting the correct voltage from the set. Again this is a long shot.
remember CRT testers are not infallible, just cause it says its good does not mean it is. The only way to be sure would be to check the calibration of the tester OR test it on a known weak CRT to confirm its function.
Before messing with the power supply caps you should just check the B+ voltage to see if its what it should be with a multimeter. I doubt a B+ fault would be causing the issue.
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well i could take the 6dq5 out and run the chassis to check b+ but it may show ok but would it possibly show less under a load if there is a problem within the caps.