Kenwood CS-4125 horizontal position not working

[xbunnyraptorx]

Hello all,

I recently purchase a Kenwood CS-4125 analog scope because I am interested in getting into electronics. Preface the rest of this with the fact that I basically know nothing but the very basics of electronics, and ideally I do not want to destroy this thing by taking it apart into a million pieces. If I have to return it I will and will be out of the shipping costs. Oh well.

All the knobs do what they are supposed to except the horizontal position. As you can see in the pictures below, the center is off to the left. The horizontal calibration knob works, but not the horizontal position.

In addition, I sent in a signal that should have drawn a circle in X-Y mode. It doesn't appear as such, even when I mess with the calibrations for each. The CH1 and CH2 calibrations should be good as I did them both probing the calibration signal.

I am more concerned with getting the horizontal position to work vs the error in X-Y mode, but it would be nice if that could be fixed too. I found this service manual online but honestly I have no idea what I'm looking for.

I'd like to know if I have a prayer of fixing this (or at least centering the signal by some method). Thanks.
Service manual: http://bee.mif.pg.gda.pl/ciasteczkowypotwor/Kenwood/Kenwood%20CS-4125.pdf

The 1 kHz 1 Vp-p calibration signal


Center with no input V in X-Y mode


Circle signal


Innards

[xbunnyraptorx]

Update: I'm returning the item so no need to help. I'm new to the forum so I don't know how to remove a post.