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Laurie
Double Platinum Member
Canada
4854 Posts |
 Posted - 08/24/2008 : 16:07:49
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quote:
Originally posted by americanmonk
Dr. Bob,
I had my TU-2 powered by one of the 9v outputs on a DC Brick, then daisy chained to a MIJ DS-1 then the DM-2. Thats when I started smelling the burn smell. I have run plenty of Boss pedals thru the DC Brick, so it's interested to me that it happened like this.
I'd check the output voltage of the plug-pack. If it's up near 15V (some of them are) that would take out the diode.
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americanmonk
Copper Member
USA
13 Posts |
Posted - 08/27/2008 : 01:20:55
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| Here's an update. Got the diode in the mail today. Soldered it in and then plugged it in... nothing. No LED, no effect... the sound just passes thru. While I had the diode completely out of the circuit, I plugged the pedal into a PSA adapter and it worked. But, now that the diode is in, it doesn't work. The area around the diode looks a little burnt and the metal tracking has started to come up a little. Is this diode the one that you take out when doing the ACA to PSA mod?? If so, would I just be better taking it out and doing that mod? Thanks for your help! |
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americanmonk
Copper Member
USA
13 Posts |
Posted - 08/27/2008 : 01:52:05
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| Ok, so from some more researching that I've done, I think I may have soldered the diode in reverse. The cathode band is placed in the opposite direction of the arrow printed on the board. Would that be correct? |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 08/27/2008 : 02:10:32
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Almost certainly in reverse - the end with the band goes to the track that is at 9VDC. The side with no band goes to ground.
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americanmonk
Copper Member
USA
13 Posts |
Posted - 08/27/2008 : 02:21:15
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AHHHHH (Sigh of relief)
I finally got it! I reversed the diode and now it works perfectly! The board doesn't look that pretty as I've never soldered a pedal before. At both solder points the tracking came up, but I was able to solder both points down. Thank you guys for all your help in resurrecting this wonderful pedal! Now, I'm off to enjoy it!  |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 08/27/2008 : 03:15:29
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Nice one...... Laurie to the rescue again......have some of these........... |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 08/27/2008 : 09:09:10
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Hi americanmonk
Congrats on your repair.
Nice to hear old pedals up & running again.
And Thanks to Laurie from me as well.
Regards Dr. Bob |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 08/27/2008 : 15:32:53
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| No worries! This one was easy - glad to help! |
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americanmonk
Copper Member
USA
13 Posts |
Posted - 08/28/2008 : 04:10:17
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| Seriously, thanks goes out to all that helped me on this one... especially Dr. Bob and Laurie. You guys rule! Thanks again. |
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Topic |
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Fried Boss DM-2
