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 DD2 DD3 Hi/Low cut
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solewheelin
Bronze Member

USA
53 Posts

Posted - 11/26/2008 :  21:31:30  Show Profile  Reply with Quote
Hey first post woohoo.
I have an issue.
I brought the DD2 in to my tech to install a 3 way switch and cap placement do the hi-cut mod. He put them on the Level knob. I picked it up, took it home, plugged it in, and all I heard was the feedback/repeats being WAY cut without much of highs being cut. So I brought it back to him and he seemed confident as to what to do next to fix the problem which was move the caps to the feedback pot.
So he calls me back 5 days later and tells me hes tried everything.
4 different values of caps and every combination that would make sense and nothing is working. This guy fixed my DD2 after 2 different semi well known repairmen in Brooklyn NY told me they couldn't fix it (or just seemed like they didnt want to get involved with it).
It was defunct for 15 years or so.
So yes I am wondering if someone here can chime in that might be able to help. Also is it possible to do a Low cut as well as a hi cut with the 3 way switch?
Thank you!
Ste

Edited by - solewheelin on 11/26/2008 21:37:30

DeFrag
Moderator

USA
3409 Posts

Posted - 11/26/2008 :  21:46:51  Show Profile  Visit DeFrag's Homepage  Click to see DeFrag's MSN Messenger address  Reply with Quote
Welcome to Bossarea solewheelin!

I'm quite sure the DD-2 guys will step in & help you shortly.
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solewheelin
Bronze Member

USA
53 Posts

Posted - 11/26/2008 :  22:00:13  Show Profile  Reply with Quote
quote:
Originally posted by DeFrag

Welcome to Bossarea solewheelin!

I'm quite sure the DD-2 guys will step in & help you shortly.



Cheers!
Here's my pedal board as it looked about a month ago. Im in the process of doing a monte allums mod to an MIJ CS3 to try out.
Thanks for the warm welcome.


Edited by - solewheelin on 11/26/2008 22:24:46
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ChristoMephisto
Platinum Member

Canada
1288 Posts

Posted - 11/26/2008 :  22:14:18  Show Profile  Reply with Quote
Welcome to the forum!!

What values of caps did you use? The standard 0.1uf?
I used a dp3t center off toggle for 0.1uf/0.047uf
Is there any sound difference without the caps in play?
Without, and everything cranked, I can get almost infinite feedbacks, ok it just seems to go on and on...
With either the caps, the feedback is slightly darker and trails off nicely.

Not to double guess your tech, but did you check to see if it was done right?

Don't know about the low cut, interesting tho

Edited by - ChristoMephisto on 11/26/2008 22:50:20
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Dr. Bob
Moderator

Australia
6593 Posts

Posted - 11/27/2008 :  03:00:47  Show Profile  Visit Dr. Bob's Homepage  Reply with Quote
Hi solewheelin

Welcome to the forum from Australia.

Like Christo said, have you double check the tech's work?.

BTW, we have a "Lets see your pedalboards" thread over here, if you want to post pics into there.
http://www.bossarea.com/forum/topic.asp?TOPIC_ID=3022&whichpage=1

And to be fair to the/your Tech guys, what would any of us non-Technical people, be REALLY willing to pay for a repair or a mod to old Boss or other pedals, based on their value.

My guess is very little, unless you are a pro-gigging muso, & have no choice.
I know what I value & charge my time & skills out at, but I can't see anyone non-pro, paying that kind of money.
I guess & thankfully, that's one of the reasons place like this exist.

Perhaps this would make an interesting new thread discussion topic?

Regards Dr. Bob

Edited by - Dr. Bob on 11/27/2008 03:33:52
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solewheelin
Bronze Member

USA
53 Posts

Posted - 11/28/2008 :  01:11:18  Show Profile  Reply with Quote
quote:
Originally posted by ChristoMephisto

Welcome to the forum!!

What values of caps did you use? The standard 0.1uf?
I used a dp3t center off toggle for 0.1uf/0.047uf
Is there any sound difference without the caps in play?
Without, and everything cranked, I can get almost infinite feedbacks, ok it just seems to go on and on...
With either the caps, the feedback is slightly darker and trails off nicely.

Not to double guess your tech, but did you check to see if it was done right?

Don't know about the low cut, interesting tho



Thanks.
I'm not sure what he used but I will find out. I didn't get to check his work. Though i should have. I'm very good with soldering, but schematics don't make much sense to me. I do love the sound of this pedal "stock", so I would love it with the highs and or lows being cut..
If he gives up on it, I will have gut pictures for you when it gets back in my hands.
I would love to have hi cut as well as low cut installed on the 3 way switch but I haven't seen anyone with this.
thanks
Ste
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solewheelin
Bronze Member

USA
53 Posts

Posted - 11/28/2008 :  19:36:53  Show Profile  Reply with Quote
So my guy tried a range of values .010 - 1uF. the suggested values were .1, .22, .47 and 1uF. He put them across the e. level pot and then the feedback pot. both had the huge level drop.

Maybe he accidentally switched the negative and the positive? He says he tried "everything".
I'm wondering if there are any pics out there of a gut shot of what the DD2/3 modification actually looks like.
thanks
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ChristoMephisto
Platinum Member

Canada
1288 Posts

Posted - 11/28/2008 :  22:57:20  Show Profile  Reply with Quote
Switched the negative and positive? Your friend should be using regular caps, not polarity sensitve, ie not electro's
http://i179.photobucket.com/albums/w283/ChristoMephisto/DD3hicut.jpg
the wires lead to the E.Level pot, the two outer lugs




Edited by - ChristoMephisto on 11/28/2008 23:01:10
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solewheelin
Bronze Member

USA
53 Posts

Posted - 11/29/2008 :  09:53:01  Show Profile  Reply with Quote


Hey thanks so much for this.
But by looking at the picture, I'm not positive I understand how the mod is done. I see the black wires soldered to the 2 outer lugs of the level pot on the left. But where do those wires come from? Maybe you can edit it in paint and point things out?
I'm pretty sure he used the right caps, but I will double check. That mistake from my last post was due to my own ignorance. Thanks for your help.
Ste

Edited by - solewheelin on 11/29/2008 09:57:22
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ChristoMephisto
Platinum Member

Canada
1288 Posts

Posted - 11/29/2008 :  13:33:17  Show Profile  Reply with Quote
The two wires lead to a dp3t toggle switch. The wires connect to the middle two lugs, and the caps are soldered to the lugs at the end.
Center is off, and either way adds the cap parallel to the E.Level pot.
Thanks for posting the pic, it never seems to work for me,
think i need to wash my ESD mat, lol

When you mention low cut, are you referring to the whats found on a Dan-echo.
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verivorax
Platinum Member

Canada
1185 Posts

Posted - 11/29/2008 :  15:13:31  Show Profile  Reply with Quote
Welcome!

I don't have much to say about the DD-2, but what's the name of the blue expression pedal which turns the delay pot for you... I heard about it a few years ago but have been unable to find much info on it!

Edited by - verivorax on 11/29/2008 15:14:29
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ChristoMephisto
Platinum Member

Canada
1288 Posts

Posted - 11/29/2008 :  15:31:44  Show Profile  Reply with Quote
PS3 and the PS5

d'oh!! i feel GAS coming on...
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Laurie
Double Platinum Member

Canada
4854 Posts

Posted - 11/29/2008 :  15:35:04  Show Profile  Visit Laurie's Homepage  Reply with Quote
quote:
Originally posted by verivorax

Welcome!

I don't have much to say about the DD-2, but what's the name of the blue expression pedal which turns the delay pot for you... I heard about it a few years ago but have been unable to find much info on it!


Is this what you are looking for?

http://www.toneinprogress.com/
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solewheelin
Bronze Member

USA
53 Posts

Posted - 12/03/2008 :  17:25:00  Show Profile  Reply with Quote
So I spoke to my tech, he has done a lot of research and he cannot understand why this isn't working like it has for everyone else.
i don't doubt his skill for a minute and I know this is not a lost cause. (edit) When I mentioned switching + - of the caps, that comment was my own ignorance so disregard it.
So can any of you guys point me in the direction of a link with more pics, instructions or discussion of the mod done correctly? I know that it isn't a difficult mod, but I can't seem to find much info on it. Also what are the possibilities of incorporating the 3 way toggle switch to do low cut, stock, hi cut rather than the normal dark, stock and darker? Is this possible?
If i cant get any answers here, I might resort to contacting a few of the guys that have done the mod countless times.

thanks again

Edited by - solewheelin on 12/03/2008 17:32:38
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ChristoMephisto
Platinum Member

Canada
1288 Posts

Posted - 12/03/2008 :  17:42:20  Show Profile  Reply with Quote
Can you post a pic of what you got?

Try testing the parts with a multimeter, check the capacitance, continuity (beep!!) on the switch and wires too
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solewheelin
Bronze Member

USA
53 Posts

Posted - 12/03/2008 :  18:45:53  Show Profile  Reply with Quote
It isn't in my hands, but I will visit my tech later this week and try to take some pics..
You could be right in the fact that it could be something as stupid as a faulty cap, but I doubt it.
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