Question about Gibson Les Paul Studio Electric Guitar

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My Les Paul Guitar hums loudly but when I touch a metal part of it with my hands the hums stops. How do I find the earth/ground fault using a multimeter?

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You have a grounding problem. Verify your cable is good first, then open the guitar and look for broken wires. The electronic parts sit in a cavity that SHOULD be lined with CONDUCTIVE paint that acts as a shield and should have an electrical connection. You will likely find ground wires soldered to the back of the control pot cases. If you find a wire broken loose you have found the cause. There is usually a wire to the ground system from the metal parts.

Posted on Aug 22, 2010

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A noise gate can help as well.

Posted on Feb 05, 2015

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1 Answer

What Epiphone model did I purchase?


Sounds like perhaps a Les Paul Special II, but more detail is needed to say for sure. There was a lot of variation in their Les Paul models. Posting a photo of both sides and the headstock is best.

-Has the guitar any binding, and what colour?
-Is the back of the guitar white or all black?
-Exactly what is on the front of the headstock, 'Epiphone', the 4-diamond logo, anything else?
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Wire up a epiphone prophecy guitar


It gets a little involved, I would recommend a simple book from say amazon, or google basic guitar wiring. Take an extra couple minutes and apply aluminum foil or adhesive metal tape where you can inside any cavities, then ground it. You'll reduce hum. Use good shielded wire. Practice soldering techniques, a cold solder joint will make the whole project flop.

Jan 06, 2015 | Epiphone Prophecy Les Paul Custom GX...

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Ephiphone guitar pickup wiring


Or a bad solder connection on the ground wire on the jack, or shell/sheild on the guitar.

Here is the list you seek.
http://www.gibson.com/en-us/Support/TechSupport/Wiring Diagrams/

Feb 03, 2012 | Epiphone Les Paul Studio Electric Guitar

1 Answer

My amp makes this static noise wich goes off as soon as i touch one of the strings or the metal part of the guitar cable. What can i do to make the noise disapear


This is a common problem... Make sure your amp is plugged into a three wire grounded receptacle. Keep the guitar away from magnetic fields of transformers in amps and effects units. Make sure you have a high quality guitar cable.

Sep 06, 2011 | Epiphone Les Paul Studio Electric Guitar

1 Answer

Buzzing noise when not playing


All amplifiers make a little bit of noise (hiss) but it is normally slight and drowned out by playing. However, assuming that this is not normal system hiss, here are a few simple steps to try and locate the source of the problem by process of elimination.
  1. SAFETY FIRST - a common cause of a humming or buzzing sound can be a lack of earth (grounding) on the mains supply. With a 240volt AC supply this hum will be at 50hz (in the UK) - frequency may vary in other countries but should be similar. Check the earth first because of risk of electric shock. Until you are satisfied that this is not the cause of the problem DO NOT touch any metal parts of the amp. Remove the mains lead and try a different one. Try plugging the amp into a different mains outlet socket (preferably one on a completely different circuit).
  2. Turn off other electrical equipment in the vicinity that may be causing interference. Move the amp a bit, try rotating it by 90 degrees to change relationship to things like mains electric cables in the floor.
  3. If you are using the line-out socket to give a feed to a mixer, slave amp or p.a. system unplug this. Sometimes double earthing (through the mains lead of your amp AND the mains lead of the MIXER / PA) will cause an 'earth loop' due to a different resistance at each end. Putting a DI box with an 'earth lift' in between may eliminate this problem. Alternatively there are little gadgets you can buy to do this (I found one intended for car audio systems on Amazon that works very well)
  4. Unplug any instrument leads - to eliminate possibilities of interference affecting cables, effects pedals or guitar pick-ups. Also unplug the foot-switch.
  5. If that stops it plug a lead in without a guitar on the other end - does the noise return? If yes change the lead. If no plug the guitar in.
  6. Try moving the guitar in relation to the amp (turn it around 90 or 180 degrees) - this will be pick-up to amp power supply interference.
  7. Does the sound get better or worse if you touch metal parts of the guitar with your hand? This may be a screening issue within the lead or the guitar itself.
  8. Try turning all the individual channel tone and gain controls to zero, turn off any effects on the amp panel. If that eliminates it only turn up the controls on channels that you are actually using.

Jan 30, 2011 | Marshall Amplification Marshall MG50FX 50...

2 Answers

Well i dont have a les paul studio i have a les paul menace with the same problem. Hopefully you can still help me. When i plug the guitar in and turn the volume up on the guitar a loud hum appears. ...


OK... Most of the guitars have a PAINTED on shielding in the well with the electronics. Sometimes the electrical connection to this is broken causing hum. Sometimes the connection is by way of the potentiometer shaft nuts and they spin and break the connection. This paint is conductive and often black know as aquadag. Use an ohmeter to verify connection.

Oct 27, 2010 | Gibson Les Paul Studio Electric Guitar

1 Answer

Hi- When I plug in my les paul into my new peavey windsor class A amp, I get a loud hummimg noise. But when I mute the fretboard or touch anything metal on the guitar, it goes away. I don't have this...


Sounds Like The Amp Has A Grounding Problem Check To See If The Ground Wire Is Hooked Up Inside The Amp And Or If The Pin Has Been Broken Off The End Of The Cord.
Sincerely,
Michael Scott

Jul 24, 2009 | Music

1 Answer

Amplifier is buzzing when i plug in my les paul but ok with other


Several things to try:
- Probably already have, but another guitar cord.
- Ground switch on the amp?
- I had an older guitar that buzzed due to the pickups. While touching the strings, all was well - I was acting as the ground then. The ground wire broke, so it buzzed no matter what. The ground wire ran to the metal bridge.
- Play louder than the buzz! :)

Mar 23, 2009 | Epiphone Les Paul 100 Electric Guitar

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