Question about Boss Mt 2 Metal Zone Effects Pedal

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Light will not turn off...

Hello,my pedal didnt transmited the maximum sound... I put the pedal volume in maximum and i almost couldnt hear the sound :\ i opened the pedal and now i have the same problem with the volume and now the red light dont want to disappear even when i switch it to no-distortion... what should i do? it is too expensive to fix it in a shop... sorry for my english =)

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  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: The Distortion Pedal has no effect on the sound.

i got d same problm. i fixed it myself.. check all the op amp ic's if they're all gud. if youre not sure, replace all 4 rc4558 ic's. in my case, i still felt a very small output signal from my pedal (equalizers, vol n gain ctrls r gud since they vary when i change the setting) so i suspected that one or 2 of my ic's were damaged. i only replace d last two op amps which my signal passes thru. i also had this problm with my marshall drive master. same diagnosis and solution. check your schematics

Posted on Feb 13, 2009

  • 133 Answers

SOURCE: light indicator is on

Try changing the battery, if it doesn't help, some possibilities are:

- dirty contacts or a broken wire on the footswitch

- a broken wire from the distortion output to the output plug

- a broken wire elsewhere in the unit (e.g. potentiometers or rotary controllers)

- a bad input / output level or other potentiometer or rotary controller

- a burnt out component (a bit unlikely, but possible, and it could be anything)

- a bad connector contact inside the unit

- a bad pin solder contact on ANY of the components inside the unit (wires, connectors, switches, jack plugs, resistors,variable resistors, trimmers, diodes, capacitors, transistors, ICs, etc.)

Broken wires / badly soldered pins need to be resoldered, but if there is damage to any of the components, they wil probably need to be replaced.

I hope you can find out what it is.

regards

3rq8 (Triarcuate)

Posted on Aug 02, 2009

  • 5603 Answers

SOURCE: when i turn on my pedal i can get the clean tone

Make sure the pedal has the correct power supply voltage, current AND polarity.

Also adjust the setting knobs as needed.

Make sure the in's and out's are corectely connected... it will work clean if they are backward, but no distortion.

Posted on Mar 12, 2010

  • 417 Answers

SOURCE: My MT-2 wont distort my guitar.

A few things to try....

Usually the adapter will over ride the battery when used.
1) Make sure your 1/4" cables are working properly without the pedal "in-line".

2) Take out battery, and use just the adapter only. Make sure it is the correct and proper adapter that works with Boss. Usually the PSA-120. If you are not using a Boss Adapter, make sure yours is a direct replacement with same specifications. 9V/200mA. And "tip negative". DO NOT use Radio Shack stuff, nothing against them, but there adapters just don't mix well with Boss products and the like.

2) Try just the battery, no AC adapter. Remember to unplug the input when not in use. Saves battery.

Basic rule of thumb...when using correct AC adapters for all your pedals all the time, and all sounds good, then take out the batteries.

If you still experience problems, it would be an internal IC chip most likely. From there post another question maybe.

Posted on Apr 01, 2010

  • 5603 Answers

SOURCE: my boss metal zone pedal

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.

Posted on Jan 30, 2011

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This is a generic answer for this kind of question.
When there is no sound
Check the obvious.
Is there a light on the organ indicating it is on?
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HEY THERE! I have had similar problems with digitech pedals before. Follow these steps and if the problem is fixable you should be able to identify and correct it.
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1.Plug cable direct to amp from guitar. Have sound? If so its not cable repeat this step with the other cable. Good?

2.If both cable are working plug direct to pedal and use headphones to see if you hear anything. If there is sound it is the output jack.

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A broken power input connector could also be causing a short.

Often the input audio connector is used to switch the power on so trace the power circuitry looking for the problem.

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My boss MT2 was working fine yesterday and today I went to go use it and two things happen. Either it will mute my guitar, no sound is being transmitted. Or I just get a loud buzz. Either way the power...


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BUT FIRST...

A common cause of this is we forget which side is input and output... happens ALL the time, so verify you have the in and the out cables to the right placee.

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First, plug in a set of headphones into the preamp out jack. Note that due to the impedance mismatch what you hear will not be very loud. Now change the state of the clean OD. Did you hear a faint pop?

Next plug a LOW impedance device OR even an instrument cable into the power amp "input" jack. Do this with the power off then warm amp up.
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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.

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