Most of the time there is no tech to open it up so folk just get another one. The cost at the repair counter here is 150USD min so no one fixes them anymore.
Oil? Why not replace failing parts?
My Logitech X-210 (5-6 years old) is giving low sound from the left speaker,right works fine,n it makes cracking noise while increasing or decreasing volume ..., same when different speakers are attached to subwoofer ,...i have tried oiling the volume control still no use.... any help ?!?