Width Problem with Capehart Model 320
 

Hello .. this is my first post here .. I have a Capehart model 320 I have been restoring,, and have pretty much fixed all except a width problem.. the crt has a line on the left side... that is wider when you first turn it on and as it warms up 5-10 min the line gets smaller...but never goes away.. and if you try to adjust it out the picture fades and you loose contrast.. I am not a tv repairman.. but I do have a background of self taught electronics,, 30 some odd years,,
I have been posting my progress on the other site.. under capehart 320..the set has been recapped and all tube double checked.. so where should I look for this type problem...

Thanks.. Mike

I had the same problem with a Hallicrafters set which was almost impossible to narrow down. It turned out (finally!) to be shorted turns in the width coil.

Thanks for replying.. I checked the resistance on the coil and it is as my sams says...

I am using a sub. pix tube in this set and it dosn't use magnetic focus.. and I was told to remove the focus coil.. I don't think they meant me to remove it from the circuit.. but I did .. and now I beleive it changed the B+ .. and may have damaged something,, I had to replace the yoke.. and after replacing it.. I had normal width.. then I heard a popping sound then the line developed on the left side..

any Ideas anyone.. this set is in sams 112-3

Thanks.. Mike

Last night I turned off the TV in the dark and noticed the H. Out tube was glowing blue inside.. I replaced it with a new one it also glows blue inside.. could this be a symptom of my width problem?

thanks .. Mike

If it looks like the inside of the glass envelope glowing, that's okay. means that the vacuum is very good inside. Stray electrons hitting the glass, not an issue. Shouldn't be a cause of a width problem.