Connecting wires on the Strum Fix DUO

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NOTE: This post only applies to an early version of the Strum Fix DUO shipped in early 2020 which had a issue that required the wires to be connected in a certain way. All DUOs shipped since late March of 2020 have had this issue corrected, so if you have a newer version you can ignore the rest of this post.

We discovered that there is an issue with the Strum Fix DUOs that were shipped in early 2020 that requires that the wires to the strummer be connected in a specific way or else the strummer won’t work right. If you have a Strum Fix DUO from early 2020 that isn’t behaving properly, here’s a procedure to you can use to determine how to properly connect the wires and get the strummer to work right:

  1. Connect both sets of wires to the strum fix (two to the UP strum connection, two to the DOWN connection).

  2. Test the guitar -- if nothing at all happens when you strum up or down, then BOTH sets of wires need to be swapped (meaning you need to swap the wires around in the connector so that the wire that was on the left is now on the right and vise versa). After you swap around all the wires, the strummer should work.

  3. If in the previous step the strummer still doesn't work and appears to be stuck in the up or down strum position, then one set of wires need to be reversed, but it's impossible to know which ones, so you just have to try it. Swap the wires in one of the connectors, then test again. If it works, then you got lucky and are done.

  4. If the strummer still doesn't work, then that means you swapped the wrong set of wires in step 3, so swap them back, and then swap the OTHER set of wires -- the strummer should now work.

NOTE: while you are testing the guitar, you can leave it open with the back off, but will need to connect the wires to the battery compartment while testing.

-Scott P (owner, Byte Arts)