1981 19" RCA XL-100 CTC108C no brightness after CRT cleaning

[damen]

If you have an issue with the vertical size,meaning, can't fill the screen with the size control, or, the picture is too tall and can't be pulled in, it may be necessary to replace the resistor for the vertical return circuit from the yoke. It's R522,a 1.8 ohm 2 watt in your 108 chassis, and R518, a 1 ohm resistor in the 118. Just swap them.

[joe111671]

Originally Posted by damen

If you have an issue with the vertical size,meaning, can't fill the screen with the size control, or, the picture is too tall and can't be pulled in, it may be necessary to replace the resistor for the vertical return circuit from the yoke. It's R522,a 1.8 ohm 2 watt in your 108 chassis, and R518, a 1 ohm resistor in the 118. Just swap them.

The vert size on the CTC108 filled out by adjusting the control, but I noticed that it's not centered, it's down too far. I can't find any way to center it by looking through the Sams. Do you think swapping these resistors will have an effect on the centering? Or is there some provision for adjusting it that I can't find?

[damen]

I don't know if that resistor would affect centering or not. You could parallel the 1.8 ohm resistor with another 2 ohm resistor temporarily under the board to see if bringing the value down to 1 ohm helps or not.