Zenith SG5745H9 Again ... Horizontal question

[rwagoner]

Originally Posted by old_tv_nut

The on screen menu timing is generated from the sweep pulses, so it will display properly even if the sync isn't working. So, the onscreen menu section is OK, but the sync is not.

Is there any part of the board I should be looking at, or should I plan to replace all the capacitors on the (I assume) board that has the inputs?

I may be assuming incorrectly, but am thinking that it is a capacitor because of the way it changes if left unplugged vs. being plugged in (I unplugged it today for a few hours and it worked better, though not perfect).