Quote:
Originally Posted by NewVista
Does the Goodman manual say anything about vert foldover?
I left the new 1.5k (2w) resistor in as it was reassembled.
Still have my H-synced artifact on screen which can be heard in speaker also, seems to be a micro arcing in some component getting into the RF then onto screen - more pronounced as you fine tune into chroma/sound
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The Zenith 29JC20 service manual says:
"The most common cause of vertical fold-over is failure of the vertical oscillator output tube. Vertical output grid coupling capacitor being shorted or leaky can cause improper operation of the vertical output tube, causing vertical fold-over."
So maybe replace the grid cap and try some other vertical output tubes?
Dave