Flank/Bombastortion ERROR

J

johnk_10

Member
i just built the Flank distortion and it didn't work properly. When I noticed that the clipping LEDs weren't lighting up, I checked the pcb and found an error on it.
the Anode/Cathode on one of them has to be reversed in order for it to work, so
all you have to is reverse the polarity of one of the LEDs

stock pcb:
Flank Leds.jpg
corrected PCB (in RED)

Flank Correction.jpg
 
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The PCB is layout correct (there has only been one batch / revision so far), the LEDs should be installed according to the silkscreen.

What was it doing wrong? It would still work with one of the clipping diodes installed backwards (or removed entirely).


1753563367609.png
 
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Robert said:
The PCB is layout correct (there has only been one batch / revision so far), the LEDs should be installed according to the silkscreen.

What was it doing wrong? It would still work with one of the clipping diodes installed backwards (or removed entirely).


View attachment 99842
Click to expand...
your trace example looks (and is) correct but when i ohmed my pcb out one of the led legs was backwards.
it had VERY low output and no clipping (neither led lit up). when i reversed one of them, it came to life and sounded great.
 
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