Footswitch for Ibanez Promethean

[quilttopjazz24]

I can't find a schematic for the Ibanez IFS2X footswitch that works with the P500H bass amp. One side of the switch turns the mute on and off and the other side turns the vibe effect on and off

When I plug a 1/4" TRS - 1/4" TRS cable into the footswitch jack there is 14.6 VDC across tip and sleeve and 14.6 VDC across ring and sleeve.

I tried a Traynor switch (similar to the Apex AFS2) and no score. The Traynor switch allows either open or closed circuit across tip/sleeve and ring/sleeve depending on whether the individual switches are open or closed.

Can anyone let me know the footswitch requirements for this amp? Many thanks!

[quilttopjazz24]

Solved -- the Traynor footswitch has an LED wired across each of its pushbutton switches. I snipped one lead on each LED and now the switch works great with the P500H amp. It still works with my Yorkville XS400 head too.