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WANTED! Grundig MO-53 or MO-22 oscilloscope schematic

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oldmp

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grundig mo22

Hi,

last week, my scope (MO-53) made the following: on the left side of the screen, the beam made a high intesity, big point... so big, that the full screen was green. I think, that the controller circuit, which is responsible for the turnig up of the beam is faulty. Since last weak, unfortunately it appears often. I searched the NET, for the schematic, without a result... :-( But I found a site, with pictures from the MO-22, and it has got the same fault, as mine...

My question is, that have somebody a schematic for this scope? Or, while it appears to be a typical fault, the correct reason?
 

siemens d 1004

Moved from Professional Hardware and Electronics Design. Please use correct forum.

/pisoiu
 

oscilloscopio grundig

This scope was also manufactured as a Siemens D 1004.

I have repaired a lot of scopes in the past and will have a search through my old documents to see if I still have a circuit for this.

Could you post a pic of the fault and I may try and give some ideas to repair?
 

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