Electronics > Repair
Strange problem on tds3054b
pasta2018:
Recently i have got a tds3054b,it can pass selftest and spc.However, for each channel when vertical range is 1v/div or up,there is clutter ,each channel is the same. when the range is 500mV or below, it is ok. I checked the ±5V and ±15V is stable and correct.
pasta2018:
I take some photo
inse:
Is the phenomenon also visible with 50Ohm termination enabled at the inputs?
pasta2018:
yes,and AC/DC model also the same
pasta2018:
sometimes,it can not pass spc. but selftest is always ok
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