Last summer I picked up a Tek 2230, a 100 MHz
two-channel
digital storage oscilloscope.
I think I'd like to check it checked out by a repair
service to confirm whether all its functions are working or not.
Why? I am guessing you will be out $50 to $100, and thats assuming its fine
and needs no "adjustment".
I would just use it, wouldn't most problems be fairly obvious?