Help. Helix LT effects loop

[Jharrismsu]

I'm somewhat of a novice, but I wanted to hook up my Klon KTR externally to my Helix LT.   I created a block using the effects loop, ran a cable from Send 1 to the input on the Klon, and another cable from the out of the Klon to Return 1 on the Helix.  The Klon is turned on.  I get no sound when I click the FX Block on the Helix.  I get sound when it is not engaged.  What did I screw up?  What do I do?  Thank you!

[silverhead]

Check the Mix parameter on the FX Loop block. Here’s its description from the manual:

 

Blends the FX loop signal vs. the dry signal passed through
the FX Loop block. When set to 0%, the path bypasses the
FX loop completely. When set to 100%, the entire path is fed
through the FX loop, and no dry thru signal is heard. (This
means that if you don’t currently have your external gear
connected to the Send & Return jacks, you won’t hear any
output signal unless you bypass the FX Loop block!)

[Jharrismsu]

Thank you!  It solves one problem but creates another.  When I turn the mix down to zero, I now get sound.  Now however, the sound is the same whether I engage the FX loop footswitch or not.  The same is true if I set the mix to 50% or 0%.  It's like the Klon is engaged no matter what.    In addition, the tone and gain control on the Klon make zero difference no matter how extreme I adjust them.  Is there some other setting I need to tweak?

[silverhead]

Have you tested your cables?

[Jharrismsu]

You are a genius!   In a million years, I never would have suspected the cables.   I can't thank you enough!

[silverhead]

You're welcome. Basic checklist troubleshooting.  Here's a tip - for your safety and ours never consider becoming a pilot! (just kidding...)

[Jharrismsu]

Ha!  I tried swapping out pedals, swapping out guitars, swapping out power supplies......swapping out cables was not on my radar!  I will avoid becoming a Pilot, Doctor, or Quality Control expert.  Thank you again!