On the bench: Zenith color roundie 25MC30 - Videokarma.org TV - Video

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On the bench: Zenith color roundie 25MC30


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#11

07-14-2014, 08:49 AM

old_coot88 old_coot88 is offline

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Join Date: Sep 2009

Posts: 2,550

The plate load resistor of the V.osc is a very common failure. It drifts high due to constant hammering by high level pulse.
Common problem not just in Zeniths but all designs using B Boost to feed V.osc.
B&W as well as color sets.

Last edited by old_coot88; 07-14-2014 at 08:52 AM.

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