BROS Distortion traced Schematic

All about modern commercial stompbox circuits from Electro Harmonix over MXR, Boss and Ibanez into the nineties.
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Manfred
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Post by Manfred »

I recently bougt this defective BROS Distortion pedal and traced it.
The BROS Distortion is almost the same as the Soundcity DS-04 Distortion.
There are two differences the resistor R1 has a value of 4.7 kiloohms instead of 2.7 kiloohms on the Soundcity pedal,
the DIST potentiometer (R8) has a value of A50K instead of B100K on the Soundcity pedal.
Here the link to the post of the Soundcity DS-04.
viewtopic.php?p=279614&hilit=soundcity#p279614
BROS Distrotion Top View.jpg
BROS Distrotion Wiring.JPG
BROS Distortion PCB Top View.JPG
BROS Distortion PCB Bottom View.JPG
BROS Distortion PCB Layout.JPG
BROS Distortion Schematic.jpg

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mauman
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Post by mauman »

Manfred wrote: 25 Sep 2022, 13:57 I recently bougt this defective BROS Distortion pedal and traced it.
The BROS Distortion is almost the same as the Soundcity DS-04 Distortion.
Thanks Manfred. It looks like they share the same PCBs, even the numbers are the same.

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Post by Manfred »

mauman wrote: 25 Sep 2022, 14:21
Manfred wrote: 25 Sep 2022, 13:57 I recently bougt this defective BROS Distortion pedal and traced it.
The BROS Distortion is almost the same as the Soundcity DS-04 Distortion.
Thanks Manfred. It looks like they share the same PCBs, even the numbers are the same.
Yes, it is the same PCB.

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Manfred
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Post by Manfred »

I corrected the Schematic, the value of the DIST Pot is C50k not A50k.
I wrote:
the DIST potentiometer (R8) has a value of A50K instead of B100K on the Soundcity pedal.
That is wrong, the value at the Soundcity pedal is also C50K.
I corrected the Schematic in the soundcity post.
BrosDistortionSchematic.jpg

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