Three rotary encoders on my recently acquired TDS3054B (dead display and dead PSU fixed) are bad , very very bad and totally unusable.
I got the front panel board out hoping to repair the encoders or even replace them but look what they are
i have not seen anything like this and I dont know how and if they can be opened without destroying them and if they can be put back together
also I cannot find a model part number or replacement, hope someone can help!
they dont seem to be soldered to the board, so perhaps they have pins that just contact the board
and then they are mounted by melting the plastic legs on the back side I think?
EDIT: It seems they have also been used on TDS220 scopes