As a few have said........
You need a good B&W picture before you can have a good color pix.
Turn the color level ALL the way down for now.
Your first mission is to make this as good a B&W set as possible !
I see retrace lines so start with a grey scale adj. When done you should
be able to turn down the brite & loose the pix. Also check the KINE bias
control. Remember this set never was bright & never will be. Its was
normal to watch them in a dimly lit room !
Next do purity. Try to make that perfect.
Now convergence. Follow the manual ! Remember this involves going back & forth center-edges as you go. It will NEVER be 100% perfect BTW.
The bottom is so far off that there may be a problem there. Some of the
adjustments are coils ( usually 3 ) be VERY gentile with them. They are old
& dried up ( like me
! ).
After that put a picture on it & see how it looks. If its decent now you can
turn the color up & see how she looks.
good luck
73 Zeno
LFOD !