polarity / wiring on FV500H expression output
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- Posts: 13
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polarity / wiring on FV500H expression output
Can someone verify the exact wiring on the EXPRESSION output of a FV500H expression pedal? The manual does not specifically say TRS, RTS or TS. I cannot make these units work at all with my stomp pedals where other expression pedals work fine. I assume a standard TRS cable should work but since the manual does not say it specifically I wanted to explore the possibility that maybe a reverse polarity wiring is needed to make these things work. Anyone else had issues using the FV500H as an expression pedal on modern high end stomps?
- laurie
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Re: polarity / wiring on FV500H expression output
Swap T and R on one end of the cable and see if it fixes it.
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Re: polarity / wiring on FV500H expression output
that was next on my chores list... just curious if anyone else had these issues?
- laurie
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- SBZ: Multi Platinum
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Re: polarity / wiring on FV500H expression output
Yes, but not with Boss/Roland gear. Was connecting expression pedals to a Fractal AX8. Had the same symptoms. 100% fixed with T and R swapped. YMMV with Roland gear.Steviebone wrote: ↑Tue Aug 23, 2022 9:52 pmthat was next on my chores list... just curious if anyone else had these issues?
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Re: polarity / wiring on FV500H expression output
yes... got around to making a cable tonight... swapped the tip and ring... wahla! Can't believe nobody makes those cables. Time for some cable making action...
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Re: polarity / wiring on FV500H expression output
ring/tip swap worked. These pedals likely work well with BOSS pedals and pretty much nothing else.
- SamXTherapy
- Posts: 135
- Joined: Sat Dec 22, 2018 8:52 pm
Re: polarity / wiring on FV500H expression output
This could explain why an old Bespeco expression pedal I have won't work with the RV-6. Funny thing is, it works fine with the GT-5. Time to break out the soldering iron....mwahahahahaha!
Edit to add: This may not be the solution I wanted - but I'll try anyhow - since the pedal has a polarity switch that doesn't make the slightest difference on the RV-6 but works on the GT-5. Oh well, nothing to lose but time, fingers, patience, what's left of my hair...
Edit to add: This may not be the solution I wanted - but I'll try anyhow - since the pedal has a polarity switch that doesn't make the slightest difference on the RV-6 but works on the GT-5. Oh well, nothing to lose but time, fingers, patience, what's left of my hair...
Coppula eam se non posit acceptera jocularum
- SamXTherapy
- Posts: 135
- Joined: Sat Dec 22, 2018 8:52 pm
Re: polarity / wiring on FV500H expression output
Well, well, welly well... it works perfectly! Happy, happy, joy, joy! As all the cool kids say.
Many thanks Steviebone for discovering this.
Many thanks Steviebone for discovering this.
Coppula eam se non posit acceptera jocularum