Hantarex CT28 EQ CRT 'HOR AMP' Problem

lettuce · Post by **lettuce** » Sat Aug 16, 2014 11:28 am

I have a Hantarex CT28 EQ CRT Monitor and am having trouble with the 'HOR AMP' (Horizontal Size) pot adjustment on the rear of the monitor. I have noticed that when i make adjustments to this pot in certain positions the corners of the screen become unstable and jump about slightly, if i adjust the pot some more then the problem goes away but then am either left with overscan or underscan of the picture in some cases. Can anyone shed some light on why i have this stability problem with the HOR AMP pot when in certain postilions?