Tektronix 2467B problems

[Gyuri]

Greetings to all forum members!

Please, be patient with me.
I do not know in English, I do not understand the electronics as well..
So I'm a hard case.
I am a member of the Diyaudio forum. From there got into here:

http://www.diyaudio.com/forums/equipment-tools/208856-tek-2467b-very-nice-problems.html

Thanks:

Gyuri

[Gyuri]

If that someone maybe interested in, the U500 IC Hybrid A-B Trigger replacement solved the problem.