One caution. The service adjustments ( h-freq, V-lin, V-size ) are
very small & delicate. They also have lock tight on them often.
SO go very easy on them !
Sounds like the electrolytic caps are bad in both the Hoz & Vert.
It could also be just a dirty tuner.
BTW the fine tune is multy turn. Could be that is way off.
When you see the pix try turning it 1-2 turns CW & see what happens.
Sometimes you also need to push it in too to engage the gears.
73 Zeno
LFOD !