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Sound but no picture - RCA Televison & Video

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Hi,you have lost vertical deflection.
Possible causes are----

Vertical amp chip needs re soldering.--- very common !

Vertical amp chip has failed and needs replacing !

Failure of electrolytic capacitors in vert circuit

Failure of resisters that supply volts to the vertical circuit

Failure of deflection yoke ( not very common )

Hope this helps

NOTE . If you come across the two knobs that the other dude mentions let me know. I am sure that my fellow Tv techs would also be fascinated to learn of their existence.

The problem you are describing appears to be a vertical circuit problem. The most common problem has been bad solder connections on the vertical output IC. If you inspect the PC board around the vertical ic, you can sometimes see the bad connections. Or the vertical IC and the associated capacitors in the circuit can be the culprit. Average cost to repair should be around $100.00 "

Posted on Mar 25, 2011

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Posted on Jan 02, 2017

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