Epiphone sheraton 2 has broken neck tuner section

You can contact Epiphone directly, but really the most comprehensive diagrams of generic wiring is found on the Seymour Duncan site, and i'm sure you will find what you need there.

Your guitar was made in 1989 in Korea. At that time it was probably made in the Samick factory.

http://www.guitardaterproject.org/epiphone.aspx

Your guitar was made at the
Unsung Plant, Korea
May 2007
Production Number: 0790

If the pickup in the guitar suddenly stops working - then most likely there is a solder connection that has come loose. If you can get a small dental mirror, you may be able to look through the F-Hole on the guitar and spot the loose wire. The tricky part with a Sheraton is the way the hollowbody is constructed doesn't allow you to work on the electronics as easily as say a Fender Strat.

The only way to fix this would be to carefully remove the electronics and re-solder the bad connection. You should only do this if you are very comfortable with soldering.

Since the bridge pickup fails, yet the neck pickup works, you can eliminate about 1/2 of the problem. You can start by examining the wires that come off of the bridge pickup and follow them to the next connection point. You can also test wire continuity if you have a multi-meter to hook up to the wire - to check that the actual wire is not broken in the middle. (Broken wires on the inside of the guitar would be rare - more likely it will be an obvious solder joint that has come loose.)

If you have a local mom and pop music shop nearby - you may be able to take your guitar in for a free diagnostic - but that depends on the shop.

Good luck! Hope my information has helped you figure out a path to get it working again!

http://www.epiphone.com/images/StringGauges.pdf, i could only find these.

Most likely it is wired like most Gibsons. The volume knobs are the two at the neck end, the tones are the two nearest the rear. The lower two are volume and tone for the bridge pickup, the upper two are for neck pickup. Switch down is bridge or lead pickup, switch up is for neck or rythym pickup, and centre position is both pickups one, where all knobs can be used together.

This will help for starters:http://www.epiphone.com/images/EpiOwnrsManul.pdf This site has good info in the discussion:http://www.thefret.net/showthread.php?t=4728 There's info here too:http://epi.p3net.net/bbs/index.php.

The controls should be setup in pairs (as long as the electronics haven't been modified. The two closest to the pickups are the volumes and the other two are the tone controls. The top knob set should be your neck pickup and the bottom set is for the bridge.

Schematics and wiring diagram for the typical les paul (sheraton) controls:
http://www.guitarelectronics.com/product/WDUHH3T2202

Good luck!