Quote:
Originally Posted by JohnCT
Yes.
There were some chassis designs (including Zenith) where the focus voltage was sourced from a divider off the second anode that could cause excessive (high) focus voltage, but yours is not like that. For your situation, we're assuming that when the TV goes out of focus, the voltage is dropping.
John
|
Those HV divider resistor could also cause focus voltage to drop...That was the case on my 1971 Zenith 12B13C52 chassis. The special HV divider resistor on the HV end of the focus pot was increasing in value, and I couldn't source a spare so I ended up increasing the value of a 1W carbon comp on the ground end of the pot...