Ok, so we know we have a working:
- timebase
- x control
- focus pot
Regarding manuals I could only find:
User and service manual:
https://cdn.rohde-schwarz.com/hameg-...07_english.pdf
Additional notes:
https://www.eserviceinfo.com/downloa...oadurlid=22721
Others were copies of the same. Strangely, I didn't find one with the diagram you posted in #31 so i have saved a copy of that pic!
Just a quick note regarding the astigmatism control, I see from the CRT diagram that you posted that R369 which is 100k, controls astigmatism, so R223 is something else.
Regarding the intensity control, it could be that the pots need cleaning so that is probably the first thing to do. regarding adjustment, it seems that R356 controls the upper (bright) limit and R357 controls the lower (dim) limit. To start with, have the timebase set to something like 1ms. I reckon that the Intensity pot (R358) should be first set to its lowest and R357 adjusted until you can just barely see a trace. Next set the Intensity control to its maximum and set R356 to a high brightness. Turn down the Intensity pot to dead centre and adjust R356 for a comfortable level of brightness. Finally check the range by rotating the Intensity pot. Make any minor tweaks as desired. The exact voltage present at pin 2 of the CRT is approximate and should be around -950v when the Intensity pot is dead centre, but the exact voltage will depend on the position of the presets as well as the position of the Intensity pot itself. It could theoretically range from -1kv and -900v but it just needs to be in the right ball park.