Problem with 03/04 ZR Tremolo
I recently acquired a 03/04 Ibanez S470DX from 'evilbay' and there is apparently a little problem with the ZR trem. On the 03/04 model ZR tremolo, you're supposed to use an allen wrench to turn some little knob or whatever to adjust the spring tension of the bridge but on my guitar the little knob that you're supposed to turn is missing. Looking down inside the trem, I can see a little spoked wheel-like thing that needs to be turned in order to adjust the tension on the springs but I can't figure out any way to adjust it. I've looked on the Ibanez website and they don't even have a part listed for it so I dunno what I should do. I got the guitar for a good deal and it looks great and will sound great after a pickup swap but I just need to figure out how to adjust the bridge. The guy I got it from didn't seem like he really knew a whole lot about guitars so he was no help.
Jemsite has always been a very helpful website and I'm hoping that it can help me in my time of need here. If anyone knows where I could find some sort of replacement part or if anyone has any ideas about a substitute part I would really appreciate the info.