Quote:
Originally Posted by old_tv_nut
Something is making the control voltage out of the phase detector correct when the phase is 180 degrees from normal.
|
Component wise there's not much in the path to mess things up. I suppose if the two 1500pf mica?(domino looking) caps that connect the +/- sync inverter pulses to the sync discriminator have not been changed I'd go for those. If one or both are leaky it could potentially offset the DC control bias going to the horizontal oscillator grid. Also check the two 100k discriminator resistors for balance.