Given 2 1980's Quasar portables
 

Cute little B/W portables from the 1980's. Model number XP1477U, one blue one and one white one!

They work for the most part but both have the same problem; picture is pulled away from bottom of screen just a little and vertical linearity is off on the bottom 1/4 of the screen. Now, these sets don't seem to have a vertical linearity adjustment anywhere!

All in all, these sets would be much better if they had that adjustment. They have everything else, even focus. I wonder if there's a way to fix these?

A replacement of the RC circuitry in the vertical drive section is a better fix than a turn of the linearity pot anyhow, IMHO. These are nice sets, usually make a great picture when the crt's are strong. I owned a white one and a pink one. BTW, all sets of this era have a focus control from what I've seen! :D

I could replace said circuitry, I would just need a basic walkthrough or just which parts should be changed. The picture tubes in both are in good condition!

Post the chassis numbers.....me or someone else will have some pointers

Chassis number for both sets: 5TS634