Restoring a 1963 Admiral ctc-12 clone

[timmy]

because i had a simillar problem with a motorola 23 inch color and it turned out to be a resistor. just throwing that out there being no one seems to be able to narrow down this problem he has with that set. there could be a convergence issue there are caps and resistors there as well.

[kramden66]

Timmy I think old coot could answer this - the convergence is lining up the red blue and green , this issue seems to be video or IF related and looks like its in the black and white portion of the image , am I right or should I look at convergence ? my next step since I've checked everything else would be to check the video areas and those resistor looking capacitors , I don't know what else to check , they are all low values like 10pf 20pf 6pf etc

mike

[old_coot88]

Originally Posted by kramden66

...the convergence is lining up the red blue and green , this issue seems to be video or IF related and looks like its in the black and white portion of the image , am I right or should I look at convergence ?

From the pics you posted of the "NBC" symbol display, the "ice" problem appears to be in the luma (video) or video IF chain. Definitely not convergence or yoke related.
Assuming the problem's already determined to be not tube related, troubleshooting just about demands a signal generator (like the B&K 1076 Analyst). Working backward from the vid out stage, inject signal stage by stage until the problem's isolated.