Noise at turn on just the degausser. I would look in the 9-87 area.
It just dont look like the horz is off. Looks more AGC or video prob.
One long shot. These usually have the selector, two tuners & a
tuning control board. Tilt the chassis down & resolder the control
board under the connectors. If it has one big tuner resolder the tuner
under the connectors also.
BTW whats the chassis number? 23?C45 ?
73 Zeno
LFOD !