Fuse blows when powered on [resolved]

Bakemono · 1102

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Offline Bakemono

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on: August 22, 2020, 06:31:21 PM
It passes all the resistance checks but when I plug it in and turn it on the fuse blows. I've rechecked the wiring 3 times now and had a friend check over it as well and it doesn't appear that anything is out of place. I did do the 5/6/10 revision if that has anything to do with it? Not really sure where to go from here. I've attached some pictures below, maybe I missed something
« Last Edit: August 23, 2020, 07:32:25 PM by Paul Birkeland »



Offline Paul Birkeland

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Reply #1 on: August 22, 2020, 06:34:02 PM
I see leads touching around terminal 19 that shouldn't be.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Jimb0

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Reply #2 on: August 23, 2020, 07:51:32 AM
Those diodes between 18 and 20 and 18 and 21 are not oriented correctly



Offline Bakemono

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Reply #3 on: August 23, 2020, 05:13:15 PM
I re-soldered the diodes between 18 and 20 and 18 and 21 and also made sure that leads that weren't supposed to be touching, aren't. I turned it on and the fuse blew again unfortunately. I rechecked the resistances afterwards and they all seem to measure correctly.

I've attached a picture of how that area looks now, the rest remains unchanged from the previous pictures I've sent.



Offline Paul Birkeland

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Reply #4 on: August 23, 2020, 07:13:58 PM
Could you show us the other side of the terminal strip with the UF4007 diodes?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Bakemono

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Reply #5 on: August 23, 2020, 07:31:36 PM
I changed the revision (connected it to 22L now) and also changed the fuse from a .5A to a 1A fuse and it works now! Thank you both for the help.