Question about Music

1 Answer

Hi, I recently had this bass effects pedal worked on. unfortunately, the technician clipped off the wires from the expression pedal to the board, so, now, the pedal doesn't do anything. I need to rewire it. Please send me a schematic diagram for it, or just let me know where the wires need to be soldered onto the circuit board. Thank you,

Posted by Marty Baris on

  • Marty Baris Feb 12, 2011

    Thanks for your answer. I'll make sure to try it out. I've, also, contacted Zoom for a schematic, so I might wait for that before attempting any further repairs. Oh, that tech has been fired - more like, I'll never take anything to him for repairs.

    Thanks, again,




1 Answer

Fred Yearian

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Music Master
  • 5,603 Answers

Who knows what brand pedal you have... and there are many. The schematics for these are USUALLY not available... however, usually one can use their head and effect a repair.

FIRST, it is unlikely if you have three clipped wires that you can do much damage by connecting them wrong to the three terminals of the expression potentiometer... there are ONLY six ways to connect the leads. If the pot goes into a digital signal processing thing there is a chance that it is really a voltage divider of a voltage reference and we COULD possibly damage the pot in that case... so let's be smarter:

Where the leads attach to the circuit baord are LIKELY in a pattern of three pads in a row and you should have witness marks of where the leads were clipped... by the way, fire that technician...

Usually the center pad will go to the center of the pot leads... Then you only have two left... get them backwards and the pedal will be backwards so you can just swap them. Try this method and see if it works... If you haven't fired the tech yet, don't forget to...

Posted on Feb 12, 2011

Testimonial: "Thank you! He's fired! I've also contacted Zoom for the schematic. I think I'll wait for that before I try any repairs, but I think you're correct."

  • Fred Yearian Feb 13, 2011

    See if this might be your pedal service manual... there is also a G1 pedal at this site.



Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My dc adapter in my g1x zoom is not working. could someone pls send me a picture of where to connect the + & - wires in the circuit board. thanks.

The power jack should have a little diagram that shows the ring and tip. The ring is the long sleeve on the plug, and the center would be the tip. The diagram should show the polarity. It's usually minus to the outer sleeve (ring), and plus to the tip. It might be on the adapter spec plate also. How to tell polarity expected of DC barrel jack
The circuit board should indicate the polarity (plus and ground).

Sep 19, 2016 | Zoom G1x Guitar Multi Effects Pedal with...

1 Answer

I have a gallien kreuger backline 600 bass amp head . and I'm wondering how to use the effects loop send and return jacks with a pedal or processor ?

Run a cable from the Send to the effects and a cable from the effects to the Return. This would be in place of running a cable from the bass guitar to the effects to the amp input.

Nov 30, 2015 | Bass Music

1 Answer

Alesis dm6 bass pedal

There's a tiny switch on the back of the module "kick type" try switching that

Sep 22, 2012 | Alesis DM6 Electronic Drum Set

1 Answer

Behringer bsy600 problem with switch, on with delay

The time delay is suggesting a capacitor is needing to charge. One of the larger values may be excessively leaky and discharging at a rate fast enough to keep the capacitor from achieving a functional charge sooner. If this was something that developed recently, I would suspect the capacitor first, If in doubt recap it entirely. At a minimum all of the caps of the same value and higher capacity to the one that failed. Also check the solder joints and wiring to catch something that may develop sooner rather than later as well.

Apr 26, 2012 | Behringer BSY600 Bass Synthesizer Ultimate...

1 Answer

Hi. I have bought a Behringer Bass Synth BSY600 and a Boss FV-300L Volume / Expression pedal. Both work on their own but i can't get the Expression pedal to work with the Bass synth. The expression...

The FV300l WILL NOT work tying it into the EXP of the BSY600. What you need to do is to run your guitar into the IN of the BSY600 and use TWO audio cables from the BSY600 output, the OUT and the DIR out and run those into the two IN's of the FV-300L. Then use whichever function by connecting the two OUT''s of the FV-300L to two channels of the mixer or a two channel amp so you could proportion the BSY600's effects as desired. You could also just use whichever out from the FV-300L you want which originates in the BSY600. The BSY600 is made to use an expression pedal that is a single TRS plug which is simpler, but you can use your FV-300L as I have described just as well, it just can't use the EXP input of the BSY600.

Jun 22, 2011 | Behringer BSY600 Bass Synthesizer Ultimate...

1 Answer

It has no power..... my 9v. adapter was no problem ...

Common problem is the power input jack breaks away from the circuit board or the board cracks in the vicinity of the jack Open and inspect the area where power jack solders to the board.

May 07, 2011 | Behringer BSY600 Bass Synthesizer Ultimate...

1 Answer

I recently ordered a Behringer BSY600 Bass Synth Pedal from It arrived in a pack with air bags for packaging, all seemed find. That is, until I tried using it. It turns on, but it doesn't...

It sounds like the DSP in the pedal is repeatedly resetting... A dead battery or an incorrect power adapter is a common cause of this problem.

Feb 09, 2011 | Music

1 Answer

Expression pedal wont work

Here is a link with a source for the manual on the right of the page: Further information can be found at support at the top of the page.

Mar 20, 2010 | Music

Not finding what you are looking for?
Music Logo

Related Topics:


Ask a Question

Usually answered in minutes!

Top Music Experts


Level 3 Expert

3157 Answers

ray gallant

Level 3 Expert

72218 Answers

ADMIN Canada
ADMIN Canada

Level 3 Expert

38005 Answers

Are you a Music Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides