emaatta
Newbie level 4
2cm thick beam line in Iwatsu SS5711 oscilloscope
Hello,
I have a nice old oscilloscope Iwatsu SS5711.
Now I have one technical problem with it and haven't
found a right service manual for it. I found
instruction manual for model SS5710,
but unfortunately SS5710 is not similar model.
Circuit boards are different between these models.
Please help me to get just right service manual for my scope?
Also I would be very happy if I would find someone specialist to tell
me what is gone faulty in my scope as the beam line of it is very wide
and can't able to focus it.
I attached here the picture of screen of the scope where the first signal is ground
signal and the second one is calibration signal. As you can see mark of the beam
is not very thin and sharp.
I have tried to tune the astig potentiometer but didn't reach better focus of the beam as figured in my view.
I measured over -400V from that astig potentiometer connector.
I don't know if this is a right value of voltage as I don't have a right circuit diagrams and measuring data values.
Regards,
Esa
Hello,
I have a nice old oscilloscope Iwatsu SS5711.
Now I have one technical problem with it and haven't
found a right service manual for it. I found
instruction manual for model SS5710,
but unfortunately SS5710 is not similar model.
Circuit boards are different between these models.
Please help me to get just right service manual for my scope?
Also I would be very happy if I would find someone specialist to tell
me what is gone faulty in my scope as the beam line of it is very wide
and can't able to focus it.
I attached here the picture of screen of the scope where the first signal is ground
signal and the second one is calibration signal. As you can see mark of the beam
is not very thin and sharp.
I have tried to tune the astig potentiometer but didn't reach better focus of the beam as figured in my view.
I measured over -400V from that astig potentiometer connector.
I don't know if this is a right value of voltage as I don't have a right circuit diagrams and measuring data values.
Regards,
Esa
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