rca_14pd8053 Strange noise - Videokarma.org TV - Video

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rca_14pd8053 Strange noise

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02-08-2019, 11:21 AM

jr_tech

VideoKarma Member

Join Date: Sep 2009

Posts: 4,573

Does the pitch of the sound change when you change the vertical hold knob?
I’m thinking that vertical pulses are getting into the audio output stage (since you indicate that the volume control has no effect)... likely bad filter caps in the 275 volt supply.

jr

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