Hi there i have recently bean givin a ibanez and i would like to know wot i got ?

normally the third knob would be the mix between two pickups.

Great guitar a real beautyfull solo guitar to ripp some awesome tunes

if you are talking about the Headstock Tuning pegs, Yes that can be repaired by replacing the Tuners themselves, I have sen a complete set for $ 8:75. you may even be able to find them sold individually on ebay or your local music store.

To remove the knob, there should be a small hex key or allen screw on the side of the knob. Just loosen the screw. You don't have to remove it.

To tighten the nut properly, you may have to remove the back panel of the bass and hold the potentiometer from the other side. If allowed to turn too much, it could mess up the wiring.

your gonna prob have to replace knob but try and re sodder the connections. if that doesn't fix it then its your knob that needs to be replaced

Do NOT modify the guitar. Take it to a shop where they can set it up properly if you are having intonation or clearance problems. Also the quality of strings has a lot to do with changes in tuning. It is NOT uncommon for a guitar to require tuning during a half hour of playing. This is normal, especially if you are really driving it. Temperature affects the tuning drastically as well.

First clean the wood with methyl hydrate (alcool) to kill off any remaning mold, then treat the wood with some kind of mold resistant oil (murphy's lemond) or ask a local music store for a recomanded product than keep the instrument out of humide places of the house (celler, garage, etc...)

good luck!

The problem is likely a switch.

HOWEVER I found one that had intermittent like yours that was caused by a terminal on one of the pots touching the wood inside the cutout where the pots are.

HINT the black paint is purposely conductive as an electrical shield and is tied to ground. It is called "Aqua-Dag"

This can be a frustrating problem due to the intermittent failures that never fail in the shop... The problem is if you are under warranty, you would void the warranty by opening it yourself.

If they can't find anything, see if turning the pots to the ends with a bit of force cause the problem to occur. SOMETIMES the pots MAY turn just a bit so a terminal contacts the paint.