blown board

100r05 · 601

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Offline 100r05

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on: January 01, 2025, 08:56:26 AM
When I first powered on my sublime amp the pc board sparked a small fire. The black chip I circled on the attached picture is what popped.

Also I double checked everything, What could have gone wrong? What did I miss?
Thank you all for the help



Offline Doc B.

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Reply #1 on: January 02, 2025, 05:24:29 AM
If I'm not mistaken Eileen has already sent a replacement board to you. There's not a whole lot of connections on that kit so aside from a wiring error I would be double checking the voltage trim of the power supply and make sure those green connectors on the PC board are making good contact with the wires installed in them. Also be sure no bare wires are making contact wth the chassis.

Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.


Offline 100r05

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Reply #2 on: January 05, 2025, 10:17:46 AM
all fixed! however I am quite disappointed with the sublime/subette/pipette/moreplay/SEX set up I have. Just not great in my little office.

Thanks for all the help



Online Paul Birkeland

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Reply #3 on: January 05, 2025, 10:26:05 AM
Did you set your SEX amp for 4 ohm operation?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline 100r05

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Reply #4 on: January 05, 2025, 10:48:48 AM
I think I did when I built it. how do I double check?



Online Paul Birkeland

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Reply #5 on: January 05, 2025, 12:21:52 PM
You'd need to go into the manual and review the output transformer wiring instructions and compare those to what you have on your amp to see how it's currently wired.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Doc B.

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Reply #6 on: January 05, 2025, 05:32:31 PM
I'd like to help if possible. Can you give any more info as to what is causing your disappointment?

Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.