I was getting no sound, so I opened the wiring panel. Many unconnected/disconnected wires. Guitar jack and tone control are disconnected. Can I get a wiring diagram? Thanks.

1. Sounds like it's the input jack., but it could be the volume knob. Have you tried turning Gain1 and Gain 2 or the Clean Channel volume? Try them first when you're plugged in to the jack on the left , then when you're plugged in the back. If none of these work, it's most likely the preamp. 2. Even if the preamp is shot, there's a quick fix - get a guitar preamp or an effects pedal - they have volume and tone controls. 3. Finally - many pros just plug into the aux jack(on the rear panel) and control the volume and tone through their instruments. Hope one of these works. Good Luck.

Go to Seymour Duncan.com for the best listings of guitar schematics. Here's the link-
http://www.seymourduncan.com/wiring-diagrams
I think the one you want is-

Wiring Diagrams

If you don't want the selector switch, just take the wire from each pickup that the diagram shows going to the selector and attach both to the positive leg of the output jack.

If you are getting a buzzing sound, the ground connection is wrong. If you google how to wire an electric guitar there is a lot of info on it.

What you describe sounds like pickups fighting against each other meaning, does this occur when using pickups individually or together? This is normal when using more than one pickup together, if it occurs in single mode, something is wired wrong. Another thing is, If using single, are you splitting coils? Individual coils wired wrong can do this, a bad pickup selector switch can also. A loose wire or fiber touching the tone pot capacitor or ground could also. A dead coil on a humbucker can as well. I'm guessing that you are using these in combo meaning a possible pickup selector switch may not be switching properly. The player's level of experience is also in my mind since, all of my guitars do the exact same ONLY when I use more than one pickup. I hardly ever use more than one at a time unless I'm playing a strat.

It looks like you have 2 humbuckers (how many wires on each?), one 3 way selector and 1 volume and 2 tone controls, plus the output jack. Tell me how many wires on these humbuckers and what colors and I can help you wire it.

Go to guitarelectronics.com they have wiring diagrams for your guitar there.

Have you tried another cable between amp and guitar? Usually the cable goes bad first. Have you tried another amp or possibly tried another guitar on your rig? If this still indicates that your guitar's Standard 1/4" TS Jack is noisy, remove the oval cover over the jack and check the solder joints for the wiring. Follow the wires back to the tone and volume pots and check those solder joints. If everything is secure...Plug in, power up and check for noise while turning the volume pots stop to stop. If the pots make a scratching noise, shut down rig and unplug the guitar. Get a can of spray contact cleaner with a small extension tube (available at electronic shops) to spray in the pots while turning them. (May have to remove pots fom the guitar to get at small openings on side of pot can.) Spray jack and test for noise. Jack STILL
noisy...If you can solder...unwire old jack, remove from guitar, take to electronic shop, match to Standard 1/4" TS Jack, install in guitar, resolder wire connections and test. If you cannot solder...take guitar to
a reputable shop or dealer that does this repair. Good Luck! P.S. The
spray contact cleaner can be used on the amp jack, pots and switches
too...just make sure the amp is unplugged from the power supply before
doing any spraying.

Does the jack have any wires connected to it? Can you tell where the disconnected wires originate? Typically, the wire from the middle ear of the volume pot should go to the tip of the jack, and the wire from the back of the tone pot goes to the sleeve of the output jack. You will get no output if either of these wires are disconnected. Also, the next question is "why" did they come loose? That's usually because one of the pots is not tightened down, and is allowed to spin when the volume or tone knob is turned, breaking the wire's contact. Pull the knob off the pot, and tighten the nut down so the pot can't turn. This will assure you won't have the same problem again.

There are some possibilities. One, your speaker may be blown or disconnected. Make sure the wiring is still connected to the speaker and if you have one, try measuring the resistance(impedance) of the speaker with a volt ohm meter.Do this unplugged from current and disconnect one of the wires from the speaker or you will get a reading from the output stage. Two if there is a heaphone or line out jack it may have become faulty. If you have sound with the headphones plugged in your amp is still producing sound. Some jacks are designed to interrupt the signal to the speakers allowing you to practice without bothering anyone. If your amp has that feature and you still have sound with the headphones and your speaker tests OK then your problem is the jack. Hope this helps.

This is a very common problem that I have repaired for many friends. Sometimes the guitar jack becomes loose and gets rotated to the point where the wire breaks and/or touches the cord plug when it's inserted into the jack. You need to remove the access plate/panel at the back of the guitar body and see if the wire is broke or twisted. You may only have to loosen the jack retaining nut and rotate the jack to get the twist out or you may have to remove the jack and resolder the wire back in place. If its broke make sure to solder back on the proper terminal--the one with solder already on it and not the one that the cord plug touches when its inserted. Retighten the jack nut by firmly holding the jack from access side so it doesn't rotate again and cause that undesirable STATIC sound. Hope this helps.