Sharp GF575 left side audio is quiet

Jud55

New Member
I purchase this about 6 years ago and had it stored in the loft and im pretty sure it worked fine before putting it away
I came across this thread here

Mine is pretty much the same except there is volume to a small degree, im no expert in any type of electronics , would cleaning the slider be a good place to start if so what do i need to buy to do it, its on all the functions as both tapes do it and so does the radio.
Thanks