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DD-EXP-BOM-REV1.0.1.pdf latest version for rev.1.0 and YOU MUST ADD 2x TL071 and 1x 4.7uF MLCC capacitor RM5
~~DD-EXP-BOM-REV1.0.0.xlsx (Old version) for rev.1.0~~

For all DDRM Expander : remove the 6N138 and buy 6N139 to avoid Midi issues (stucking notes)

Warning

title	rev.1.1 changes

the new PCB Version is 1.1 !! (midi noise fixed)

it use following changes which affect the above BOM, you have to respect this:

IC33 and IC37 is TL071 (DIP8)

C166 not in BOM 4.7uF ceramic (MLCC) RM5

latest firmware

It's for all Expander versions

DDRM Expander VC Placement Guide V2 from Kevin Looney:

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