Im having trouble adjusting the tuner. I will not change stations. I did look into th back and you can see the large metal wheel turn , but the string doesnt move? You can reach in very carefully and adjust the tuner itself by hand but it is very hard to move which is why he string isnt moving . Is there any thing i can do to free this up , i think that its just from not being used for so many years ? Also i need to do something with all the push buttons, they all have very bad static and pops when you are changing from one source to another. Will a basic tuner cleaner work for this? Thanks for any help. I cant find any Imfo on this console anywhere, any ideas?

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