Zenith roundie centering

[Tony V]

Hi Matt,

I thought there was a vertical centering adjustment behind one of the knobs on the control panel on the front of the tv. You would either have to remove a knob to get at it or it had a small hole in the center of the knob to get a small flat blade screwdriver into it to adjust it. The reason is that it may be located on a control with a dual pot that only has a hollow shaft for the main control that is identified. Some had the hole in the faceplate to get to the control but wasnt in with another control either and is flush with the chassis. Those usually arent marked and you need a longer flat blade screwdriver to get to them. Anybody more familiar on this model feel free to correct me as i'm only going by memory.

On the subject of the Focus resistors, yes they do go bad or change value as Doug has mentioned several times in his Zenith restorations and will give the symptoms you described. If i recall right he also mentioned those resistors can be difficult to locate also so be prepared. Good luck!
-Tony