Boss FS 6 Not Working Properly

Jul 2, 2018
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Hello Everyone,
I own a Yamaha PSR S670 and recently bought Boss FS 6 footswitch to change patches through the registration memory. The foot switch has two pedals. I assigned one of the pedals to move forward in the bank and the other to move back. However, only one of the switch works at a given time. When i connect both the switches with the keyboard there is no change of patches. Also, both the switches work fine when they are connected individually but not together.


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