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 Mt-2 wrong plug inserted burnt out
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Gwooly999
Copper Member

United Kingdom
7 Posts

Posted - 09/17/2008 :  20:56:40  Show Profile  Click to see Gwooly999's MSN Messenger address  Reply with Quote
Hi recently i stupidly put a to powerful plug in my boss mt-2.
It smells burnt, i have opened it up but im new to guitar pedals, could anyone tell me how to fix it or what to buy
cheers

ssanyee
Silver Member

Hungary
288 Posts

Posted - 09/17/2008 :  21:00:29  Show Profile  Reply with Quote
Hi Gwooly,

Welcome to the forum!

The fastest way to help would be if you would open your pedal carefully and take some pictures to show what is visible inside!

How did you connect the socket by the way?

cheers
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Gwooly999
Copper Member

United Kingdom
7 Posts

Posted - 09/17/2008 :  21:02:20  Show Profile  Click to see Gwooly999's MSN Messenger address  Reply with Quote
It just fit it was 9v but the input was wrong did'nt look
stupid me ill post the pics in a min cheers

quote:
Originally posted by ssanyee

Hi Gwooly,

Welcome to the forum!

The fastest way to help would be if you would open your pedal carefully and take some pictures to show what is visible inside!

How did you connect the socket by the way?

cheers

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Gwooly999
Copper Member

United Kingdom
7 Posts

Posted - 09/17/2008 :  21:24:55  Show Profile  Click to see Gwooly999's MSN Messenger address  Reply with Quote
theres no point in posting pics you cant see much exept what i think is a transistor the insulation has split on it
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Laurie
Double Platinum Member

Canada
4854 Posts

Posted - 09/17/2008 :  21:31:13  Show Profile  Visit Laurie's Homepage  Reply with Quote
Ahh... but a closeup of that spot will tell us heaps.

I'm betting it is comnponent number D006 ??

Does the pedal still work on a battery?

Welcome, by the way!!
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Gwooly999
Copper Member

United Kingdom
7 Posts

Posted - 09/17/2008 :  21:33:32  Show Profile  Click to see Gwooly999's MSN Messenger address  Reply with Quote
Yea it says d6 on it
ill post the pics then cheers



quote:
Originally posted by Laurie

Ahh... but a closeup of that spot will tell us heaps.

I'm betting it is comnponent number D006 ??

Does the pedal still work on a battery?

Welcome, by the way!!

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Gwooly999
Copper Member

United Kingdom
7 Posts

Posted - 09/17/2008 :  21:58:03  Show Profile  Click to see Gwooly999's MSN Messenger address  Reply with Quote
my camera is old and you cant see it in any of the pics
please could you tell me what the D006 thing is and should i replae it
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Laurie
Double Platinum Member

Canada
4854 Posts

Posted - 09/18/2008 :  00:18:20  Show Profile  Visit Laurie's Homepage  Reply with Quote
Does the pedal still work on a battery?
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Dr. Bob
Moderator

Australia
6593 Posts

Posted - 09/18/2008 :  10:37:38  Show Profile  Visit Dr. Bob's Homepage  Reply with Quote
Hi Gwooly999

Welcome to the forum from Australia.

Looks like Laurie already has this issue well in hand.

Regards Dr. Bob
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Gwooly999
Copper Member

United Kingdom
7 Posts

Posted - 09/18/2008 :  22:26:11  Show Profile  Click to see Gwooly999's MSN Messenger address  Reply with Quote
No it doesnt still work on batteries
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Laurie
Double Platinum Member

Canada
4854 Posts

Posted - 09/18/2008 :  23:08:49  Show Profile  Visit Laurie's Homepage  Reply with Quote
OK... so unsolder D006 and try it again on a battery - take care to ensure you don't touch the battery terminals around the wrong way. D006 is the reverse protection diode and is not required for normal operation from a battery - but without it the pedal has no protection.

If it works with D006 removed, you will need to replace D006 (I'll have to look up the part number later). If it does not work with D006 removed, there is something more drastic wrong. Post some detailed pics of the area around D006 would be the next thing to do...

Good luck!
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Dr. Bob
Moderator

Australia
6593 Posts

Posted - 09/19/2008 :  08:50:44  Show Profile  Visit Dr. Bob's Homepage  Reply with Quote
Hi Gwooly999

Was the power pack higher in voltage?
What voltage was it?

Or was it reverse voltage, or reverse & a higher voltage?

If you answer these questions, it will help us figure out how much more of your pedal, was possibly damaged.

If you were real lucky, D6 went short circuit.

When you remove D6, can you please measure it & see if it's shorted.

Remember:
Dr. Bob's Theorem Number 2506, Op-Amps HATE Reversed VOLTAGES...

Taken from a similar & recent problem with DD-3.
http://www.bossarea.com/forum/topic.asp?TOPIC_ID=4599&whichpage=1

Regards Dr. Bob
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