wrote:

I made another 2 photos. Used a HZ 154 probe on the internal CAL.-
outlet. Looks weird to me...

http://www.preamp.org/dinge/hm1005.jpg.
http://www.preamp.org/dinge/hm02.jpg
http://www.preamp.org/dinge/hm03.jpg

I suppose a fault in the horizontal deflection circuitry, because
the saw-tooth is not as clean as it should be on the left side.
If you have a saw-tooth-generator, can you try that as an
X- deflection source?
This does, however, not explain the focus problem.
So I'd follow Jims suggestion:

First,check all the power supplies.Voltage and ripple.

Regards,
H.