Yeah the cleaners only do that, clean the eye. It just basically knocks the dust off the receiving eye, does nothing for aligning, does nothing to the laser end, and if the cleaning pads are thick, they could even knock them out of alignment. I really dont like them, just another "snake oil" thing in my books. A professional repair place can do a "clean and align" for not much more than these cleaners (local I think used to be 1 hour shop rate).
If the connections are fairly bright "brassy" looking, and its firmly plugged in, there's not much that can go wrong there, unless maybe a bad cord.
Hope that helps...
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