David VanHorn wrote:

>If you set it up with no input, and on auto trigger, chopped dual trace, do
>the traces jump?
>If so, something intermittent in the vertical deflection amp I bet.
>  
>
With no inputs and on auto trigger - nothing but AC power connected to
it, the traces still jump.
It also jumps if I connect it to the "probe adj" internal oscillator.
I'll have to try to find a service manual I suppose.
Thanks,
Martin K

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