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by Bill Degnan - 11/08/2019 21:50 | |
The leaky 23000 uF 15V smoothing cap near the transformer was replaced by a 22000 uF 15v that was tested to be in spec (low ESR and over 24000uF). Click image for larger view.
Replacing the smoothing cap did not fix the screen ripple problem but the original cap was leaky so it was worth doing anyway. Note that I tested the fix with two other similar uF caps to make sure the results were duplicated. NEXT: Review the specs, trace the problem down. Reply |