| Electronics > Repair |
| Strange problem on tds3054b |
| (1/4) > >> |
| 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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