1970s Quasar TV won’t tune to picture

[Electronic M]

Horizontal hold/frequency is way off. If the hold control can't bring it in look at the horizontal osc and see if there is an adjustable h osc coil that will bring it in.

[VHFUHF]

Horizontal does seem way off. If it’s not turned all the way to the right it starts collapsing the picture.

[zeno]

Many Quasar / Panasonic, RCA, Hitachi of this era throw off the
hoz osc if the HV got to high. Quick test is to put it
on a variac & try the set at about 100 VAC. If it straightens out
thats the problem. Usually its a shorted pass transistor in the
main power supply.
If you get it going there are 2 other small caps that are must changes
the set. Will cover those if need be.

73 Zeno
LFOD !