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-   -   Meguro MO1255 'scope. (https://www.vintage-radio.net/forum/showthread.php?t=68730)

ex 2 Base 30th Apr 2011 8:12 am

Meguro MO1255 'scope.
 
I have a MEGURO MO1255 100Hz oscilloscope and I need a manual for it. The dispay is not sharp and crisp as to be expected, any ideas/comments would be appreciated.Ted

cuddlyable3 22nd Nov 2013 2:28 am

Re: Meguro MO1255 'scope.
 
I also have a MEGURO MO1255 100Hz oscilloscope and poorly legible scans of the circuit diagrams (but better than nothing). I am happy to send you the scans if you need them, OR I would be even happier if you managed to find a manual that will help me! My scope works fine apart from the Trace Separation knob which doesn't.

maninashed 22nd Nov 2013 2:22 pm

Re: Meguro MO1255 'scope.
 
Is this a scope that has been in regular use? If not, leave it on for a while and see if things improve. If there is no improvement, I would check all supply voltages, for correct voltage and ripple level. You may need use of another scope for this. If all is in order check the resistors in the focus circuit. You may find some may gave drifted high or open circuit.
Bill


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