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iwantdickclark
Copper Member
1 Posts |
 Posted - 02/09/2007 : 01:11:04
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| Hey, I've got a Boss DD-6 delay pedal, and I accidentally plugged in the wrong ac adapter a while ago, and now when I plug it into a correct adapter or use batteries it doesn't work. The light just stays on perpetually and seems to oscillate between red and a kind of yellow. I'm sure it was the wrong adapter that had something to do with it, but is it fixable? |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 02/09/2007 : 07:21:19
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quote:
Originally posted by iwantdickclark
Hey, I've got a Boss DD-6 delay pedal, and I accidentally plugged in the wrong ac adapter a while ago, and now when I plug it into a correct adapter or use batteries it doesn't work. The light just stays on perpetually and seems to oscillate between red and a kind of yellow. I'm sure it was the wrong adapter that had something to do with it, but is it fixable?
Hi iwantdickclark
Welcome to the forum
If the incorrect power adapter was the wrong polarity.
You probably shorted out or blew, the protection diode, inside your DD-6.
It's a very common type of fault - mistake. 
was the incorrect power adapter, also of a higher voltage.
Was it AC instead of DC? what voltage was it?
Can you please go check, & give us more information?
But most likely it's the protection diode.
If you cant solder, you may have to take it to a Tech, & get him to de-solder & remove the damaged protection diode.
I don't have a schematic (circuit) for the DD-6, So I can't give you an exact circuit & circuit board part reference for the diode.
Another common fault, is that the 78L05 mini 5V regulator also gets damaged or blown up.
Hope this helps.
Regards Dr. Bob 
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Edited by - Dr. Bob on 02/09/2007 07:23:30 |
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cobainer5182
Copper Member
USA
1 Posts |
Posted - 10/08/2009 : 03:52:48
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| I have the same problem. I was careless. It was from a higher power source being plugged in. It was for a Blackstar Dual HT. The box began to smoke and now it dosent work and the yellowish light stays on when plugged in and it dosent work. I opened it up and couldnt see any visable burned parts. Is there an easy fix? Do you have the schematic now? I see that the original post was quite a while ago. |
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zerksies
Double Platinum Member
USA
3406 Posts |
Posted - 10/08/2009 : 13:55:05
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| welcome to the forum |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 10/08/2009 : 14:35:07
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quote:
Originally posted by cobainer5182
I have the same problem. I was careless. It was from a higher power source being plugged in. It was for a Blackstar Dual HT. The box began to smoke and now it dosent work and the yellowish light stays on when plugged in and it dosent work. I opened it up and couldnt see any visable burned parts. Is there an easy fix? Do you have the schematic now? I see that the original post was quite a while ago.
Hi cobainer5182 and welcome!
The DD-6 schematic is very elusive. I have never seen one.
If you saw smoke, something is definitely fried. It might take a magnifying glass, but something on the board will be slightly blackened. That's the place to start. Unfortunately, it probably won't be an "easy fix". |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 10/08/2009 : 14:35:16
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Hi cobainer5182
First of all welcome to the forum from Australia.
I did receive your Private Mail (PM) asking for help & support.
You you are aware, we have many members from many different countries.
and we are not affiliated with Roland-Boss,
because of the many different time zones across the world.
It's customary to post your support questions on the forum first,
there are many members here who can help, & many more that will benefit from reading the replies.
It also helps cut down on the massive amount email the Tech Guys get
in their in-boxes.
As far as I'm aware, none of the guys here have the official DD-6 schematic - service notes.
But don't be disappointed,
things change weekly, & sooner of later & one will pop up somewhere.
Can I suggest you post some pictures of the internals of your non working DD-6.
Both sides of the board.
There are a few pics of a DD-6 posted by member Tom Cray, in the Pedal Internals thread:
http://www.bossarea.com/forum/topic.asp?TOPIC_ID=4147&whichpage=9
But we would need clear, close-up pics of the areas near,
and around the DC input socket.
It's probably a blown protection diode/zener or regulator.
Possible also a Trace on the PCB has been burned off-fused,
or a combination of the above.
Hopefully one of the other tech guys will jump in, with their advice & comments.
Regards Dr. Bob |
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Topic |
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Boss DD-6 Malfunction
