ok
R53 27K 34.8
R52 27K 36
R51 10K 11.1
That shows the resistors have drifted quite a bit. Luckily R53 and R52 have drifted equally.
It's not uncommon for old resistors to go off. What it does mean is there's probably a
lot of other resistors in the unit that have drifted like that and you have to be aware that
the values of resistors might not be what you think they are.
v6
p1 226
p6 224
Those are quite good readings.
how close dose pin 1 and 6 need to be?
At one extreme of the horizontal position control you should be able to have one higher than the other at one extreme and at the other extreme the lower one should then become higher than the higher one. In the middle there is a place where they are about equal. In other words if you measure the voltage *between* pins 1 and pin 6 you will see a negative voltage, zero voltage, and a positive voltage as you adjust the horizontal position.
The same idea applies with V2 and the vertical position control. You should measure the resistances R21, R22, R23, R24, R25, R26, R27 to see if there are any way-off resistances.
Once you can get equal voltages on pin 1 and pin 6 of V2 it shouldn't be too hard to get a dot.