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Gizzorge
Silver Member
USA
245 Posts |
 Posted - 10/10/2008 : 02:54:42
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URGHHHHHHHHH!!!!!!
I finally got a DM-2
Once I got it, I went to clean it, tried to take the knob off the repeat rate pot, it was stiff, gave it a little tug, and bam the knob and shaft came out of the pot!!!!!!!!
So I can hear what it sounds like, but I am stuck with the same speed until I get the part from Boss!!!!
No big deal, but man frustrating as hell.....
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 10/10/2008 : 02:59:50
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BlarrrrghhHh!!!!!! Not good. But not fatal!
The pot is completely standard - you can get them many places (no need to wait for a Boss part). |
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Gizzorge
Silver Member
USA
245 Posts |
Posted - 10/10/2008 : 03:14:28
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quote:
Originally posted by Laurie
BlarrrrghhHh!!!!!! Not good. But not fatal!
The pot is completely standard - you can get them many places (no need to wait for a Boss part).
Give me some specs oh master of repairs...
what do I need? |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 10/10/2008 : 04:41:26
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It is a "16mm" 1M linear potentiometer. If you go to your local electronics supply shop or repair shop, odds are they will have one.
There are only 2 wires to unsolder and resolder - a really simple repair.
For reference, here is the Small Bear one:
http://www.smallbearelec.com/Detail.bok?no=555
(it is the "1Meg linear" one) |
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Gizzorge
Silver Member
USA
245 Posts |
Posted - 10/10/2008 : 05:40:54
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Thanks Laurie. You are the best.
I should be able to get one tomorrow.
So, can expect anything to be tweaked after the new pot is put in. I am messing around playing right now, and I hear that slight high pitch/ distortion buzz on when the pedal is on. Maybe it was tweaked already, maybe it is a result of the damaged pot?
I miht have to make a recording to send to someone who can tell if something Is up once I get it fixed.
My 82 Ad-9 has no suck issue. |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 10/10/2008 : 05:59:47
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That buzz is a 100% indication that someone has tweaked the trim-pots. To reset them, it's a bit of a pain... you really need a scope. See:
http://www.bossarea.com/forum/topic.asp?TOPIC_ID=4554
You will almost certainly find that "VR3" is right at the end of it's travel in one direction. If I didn't have a scope, I'd back VR3 slowly away from the end it was hard against until the buzzing dies down.
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happyplucker
Bronze Member
United Kingdom
126 Posts |
Posted - 10/10/2008 : 10:09:08
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| hope this isnt a obviousl question or that im not hijacking this thread, but why would one want to adjust the trimpots in a dm-2, what difference will it make? |
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sp-1
Platinum Member
Germany
1454 Posts |
Posted - 10/10/2008 : 10:34:42
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quote:
Originally posted by happyplucker
hope this isnt a obviousl question or that im not hijacking this thread, but why would one want to adjust the trimpots in a dm-2, what difference will it make?
I think this happens when someone on the net present their opinion as a fact like: "I think you can adjust the tone of the delay by turning the trimpot"
When someone else is stupid enough to try this.....
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 10/10/2008 : 14:56:56
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At the risk of convincing someone to actually do this (please don't!)... by adjusting VR3 you can actually make the delay time longer - this is at the expense of fidelity (that annoying buzzing sound). The factory settings are the best balance between fidelity and delay time.
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Edited by - Laurie on 10/10/2008 14:57:16 |
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Racer X
Silver Member
USA
299 Posts |
Posted - 10/10/2008 : 15:14:10
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quote:
Originally posted by Laurie
. by adjusting VR3 you can actually make the delay time longer - this is at the expense of fidelity (that annoying buzzing sound).
Uh-oh. Shouldn't tell me that. My friends BF-2 goes under the tweek
this weekend, I guess I'll tell him to bring his DM-2 as well. |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 10/10/2008 : 15:18:16
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quote:
Originally posted by Racer X
quote:
Originally posted by Laurie
. by adjusting VR3 you can actually make the delay time longer - this is at the expense of fidelity (that annoying buzzing sound).
Uh-oh. Shouldn't tell me that. My friends BF-2 goes under the tweek
this weekend, I guess I'll tell him to bring his DM-2 as well.
DON'T DO IT!! (unless you do the trim-pot replacement thing so you can put the old one back in when you get sick of the buzzing) |
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Gizzorge
Silver Member
USA
245 Posts |
Posted - 10/10/2008 : 15:56:23
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quote:
Originally posted by Laurie
At the risk of convincing someone to actually do this (please don't!)... by adjusting VR3 you can actually make the delay time longer - this is at the expense of fidelity (that annoying buzzing sound). The factory settings are the best balance between fidelity and delay time.
I am going to try to make my repair today, but a/b next the AD-9 I got, it sure sounds like my DM-2 has longer repeats than 300ms. Maybe the "longer repeats" tweak was done and that is why I am hearing that slight buzz/ whine what ever. |
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Gizzorge
Silver Member
USA
245 Posts |
Posted - 10/10/2008 : 17:07:57
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| Just got back, and my local supplier. Only has split shaft 1 meg pots. The seem a little taller than the orginal boss version. I bought it, but I am not sure to install it or not? |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 10/10/2008 : 18:08:54
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quote:
Originally posted by Gizzorge
quote:
Originally posted by Laurie
At the risk of convincing someone to actually do this (please don't!)... by adjusting VR3 you can actually make the delay time longer - this is at the expense of fidelity (that annoying buzzing sound). The factory settings are the best balance between fidelity and delay time.
I am going to try to make my repair today, but a/b next the AD-9 I got, it sure sounds like my DM-2 has longer repeats than 300ms. Maybe the "longer repeats" tweak was done and that is why I am hearing that slight buzz/ whine what ever.
I can virtually guarantee that is the case... |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 10/10/2008 : 18:13:10
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quote:
Originally posted by Gizzorge
Just got back, and my local supplier. Only has split shaft 1 meg pots. The seem a little taller than the orginal boss version. I bought it, but I am not sure to install it or not?
Just check if the knob fits - it should. There is generally no problem putting a set-screw knob on a split shaft. |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 10/11/2008 : 16:39:28
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And it all works now I think  |
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Huhhhh.. feel my pain!!!!
