Question about MXR Carbon Copy Analog Delay Pedal Guitar

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Must I remove battery when using auxiliary power supply?

Must I remove the 9volt battery each time I choose to plug in pedal to auxiliary power supply?

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I can't see any reason to do that unless the battery gets old. When you plug in the adapter, it automatically switches off the battery.

Posted on Mar 29, 2014

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Posted on Jan 02, 2017

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Hi, i need to know the exact power plug so i dont have to run the pedal on battery power.i know i need a 9v power supply but i dont know the size of the jack that goes into pedal..many thanxs..

Unfortunately, battery jacks and plugs similar to the type you're describing do not have any real standardization - unlike the outlets and plugs in homes and businesses have.

You best bet is to either bring the plug / jack to a shop to match it or contact the instrument's manufacturer to obtain the connector specs for physical dimensions

Be sure to obtain the power requirements in either watts or amps so that you can obtain a power source capable of delivering what you need without overheating during longer periods of use. Adding 25% to 50% more amps or watts to the minimum required should provide years of trouble free service. Example: 9VDC at 50 watts should be supplied by a 9VDC 62 watts or even 75 watts; or in the case of a rating of 9VDC at 6 amps should be supplied by a 9VDC at 7.5 amps or even 9 amps. With DC powered devices, make sure you observe proper polarity! Good luck!

Mar 16, 2016 | Music

1 Answer

Can using a 9volt dc power source for an effects pedal do damage to an amplifier?

Yes it can if the pedal is not rated for 9vdc supply surrent

Jun 11, 2014 | Music

2 Answers

It seems to have no power the led light doesn't come on. its brand new, but I havent used it in about five years

Are you using battery or AC adapter for power?
Most pedals won't allow you to use both. Check that there is no battery installed if you're going to plug it in. If you are using a battery, Some pedals won't light an LED on battery power.
If problem persists, your pedal may be DOA

May 04, 2011 | Boss Mt 2 Metal Zone Effects Pedal

1 Answer

My boss metal zone pedal power light wont come on when i hook the ac adapter to it i get nothing but a hum and no output clean or distortion,then when i plug a 9volt battery in it gives only clean tone...

There is a switch contact that connects the battery when you unplug the AC adapter. These commonly get sprung and cease to make contact leaving the battery disconnected when adapter is unplugged, resulting in no power. Verify the battery is being connected and see if the unit works properly. If so the adapter is either the wrong one or defective.
In other words, there may be two problems.

Jan 30, 2011 | Boss Mt 2 Metal Zone Effects Pedal

1 Answer

Hi my zoom g1x fx is having some sound issues,it creates unpleasant noises and the sound kinda fades. I noticed the fading of the sound when i'm picking the thinner strings but it sounds so loud on the...

Hello. I am assuming that you are using the manufacturer supplied mains power supply and not running it from battery (otherwise replace the battery before doing anything else). I have noticed a similar problem occasionally with my Zoom G1XN too - mostly when I have been using it with headphones plugged directly into the pedal. Sometimes gently wiggling the output jack plug seems to have solved the problem - however I have had it occur when using the pedal with an amp too. Next step would be to try using different jack leads (or swapping the ends round) to make sure it is not a problem with poor contacts in the sockets. If this seems to solve the problem a little squirt of switch cleaner in the sockets wouldn't go amiss - but leave it 24 hours to dry out before using again. Do you find it only happens on some patches or on all of them? I have one patch that is absolutely clean (straight through with every effect set at flat/zero). Try that with one patch and see if it still does it and to give you a quick comparison. However, I think there may also be a bit of a problem with the effects processor itself (either in the design or the circuitry) - let's face it the GX1 is a modestly priced unit and they probably keep the price down by using cheap components. My usual solution has been to switch it off and remove all the plugs and start again. This has worked but is kind of annoying if it happens in the middle of a gig or half way through recording a song. Lastly I would try re-calibrating the expression pedal. as follows
  1. Turn the unit off
  2. Hold down the PEDAL ASSIGN button whilst turning on the power/ inserting input jack-plug.
  3. Raise the expression fully and press the STORE key (display should read "UP")
  4. Push the pedal down as far as it will go, until it hits the stop, and then release it (it will return slightly at this point)
  5. Press the STORE button again.
  6. If the display reads "Er" repeat the process from step 3 above.

Jan 30, 2011 | Zoom G1x Guitar Multi Effects Pedal with...

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The zoom g1x is dead. no power. tried adapter from my other zoom pedal but nothing. opened it up and everything seems in tact. was working fine saturday, dead sunday. only one month old.

The first thing i would check is the ac adapter .Make sure you are getting the correct voltage from the adapter.If you know how to use a voltmeter or know someone that has a volt meter,check it with it unplugged from the guitar pedal,most of these have a voltage range from 9 to 12 volts could also take it to your local radio shack or local repair shop and they will be glad to check it for you for free.after you confirm the adapter and it is ok then the next thing you will check is the input jack assy on the pedal,input jack assy are soldered onto the board at the factory,these jacks ,no matter what it is are famous for cracked solder joints where the pins of the jack go into the board because of stress delivered to it during plug ins and plug outs.if you dont know how to use a sldering gun or dont want to you will have to take it it to your local repair shop-cost should be around 15.00, 20.00 tops,make sure that your guitar cables are good,check the 9volt battery inside the unit if it takes one,if its dead that could be your problem,if all above fails i would send it back to the factory or wherever you bought it.,good luck been playing for about 30 years myself,rock on

Jan 24, 2011 | Zoom G1x Guitar Multi Effects Pedal with...

1 Answer

How do I open the unit to replace the 9volt battery?

Many of these units the pedal actually tips up on its hinge exposing the battery compartment.

Aug 09, 2010 | Behringer PreampBooster Pb100

1 Answer

Foot pedals no sound

1. No power to the pedals. Check battery or external power supply
2. Input device (guitar , etc.) is not working properly
3. Bad connector cables , or cables not plugged in all the way.
4. Individual levels on pedals turned down all the way.
5 Bad / non working pedals

Oct 09, 2009 | Music

1 Answer


It's supposed to do that. An extra lug on the input jack is connected to the battery and/or power supply's ground.

So the only way to power off any pedal is to disconnect the input jack. If you use a power supply and power multiple pedals you can simply disconnect the power supply to cut power and avoid unplugging each one.

Oct 08, 2009 | Boss Music

1 Answer

How to set up with amp and distortion pedal

With everything switched off. I will surmise that you are using the onboard battery with the foot pedal and not a power supply.
1. Plug lead from guitar/instrument into INPUT side of pedal
2. Plug lead from OUTPUT side of pedal into amplifier INPUT.
3. Turn amplifier volume to about 10 o'clock - to stop blowing your ears out.
4. Turn volume up on guitar to acceptable level.
5. press foot switch on pedal and adjust pedal controls to suit your type of distortion.
6. Play like Hendrix.
Good Luck
ps Just as an after thought rechargeable 9volt batteries are the way to go. I've been using them for years as I always get caught up in the power cable.
If you're going to add another pedal like a Phaser, Compressor, Flanger or what just use small connect leads between each pedal but always, always put the compressor pedal last in the line.

Sep 12, 2009 | BOSS AUDIO SYSTEMS Boss Ns2 Noise...

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