Question about Drive Medical Mini Phantom Three Wheel Compact Scooter Blue - 1 each

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Phantom 3 wheel scooter back-up alarm

My mother-in-law has a Phantom 3-wheel Scooter (blue) and would like me to disable the back-up alarm. The assisted care facility where she lives is loaded with similar medical transport devices and she seems to be the only one with this annoying feature operating. I would like to find a wiring schematic for the scooter--I have the necessary skills; just need the diagrams.

Dave G

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  • jrtagility Oct 16, 2008

    Thank you for your assistance; however I have determined that the sound resonates from the control module located under the floorboard panel. I am attempting to resolve this without disassembling the module. What I'm looking for is the wiring details that will allow me to specifically disable the horn/reverse alarm electrically.

  • Anonymous Dec 01, 2008

    Had the same problem with my mother in the home. Under the feet is a panel. The alarm is under there. I used cotton and electrical tape to shut it up. Did not cut any wires figuring I'd be selling it later. *****, CA



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Easy fix; pull the floor board off by removing the 2 phillips screws. There is a round, black piezo with 2 wires connecting it; a red wire, and a black wire. Cut either of the wires, and then tape both ends of the cut wire to prevent it from grounding out on something. No more annoying noise. To hook it back up, shave the wire's insulation back and connect the wires again, but I don't know why anyone would want that installed again; I guess so someone doesn't back over a dump truck in the scooter ;).

I think the funniest thing (April Fools Day Prank) to do with that damn alarm would be to hook it up to a toilet seat lid, but in a way that the alarm only goes off when the seat is lowered, so if someone had to take a dump, they'd have to listen to the alarm...this might keep employees from taking 30 min bathroom breaks ;)

Posted on Mar 02, 2009


Should the piezo be located on the circuit board, a wiring diagram will not be of use since it is probably an ASIC (uProcessor) controlled circuit and the piezo device will be located within the control module on the board. In this case, a soldering iron will be beneficial to actually desolder the two leads from the PCB. However, you could be very lucky and find the piezo device having two wires and positioned off from the PCB. At this point, all you would have to do is clip one wire.

No matter what, once you disturb [remove/desolder] the piezo device, you will no longer have any sound whatsoever. If you want, you can take a picture of the open module and send the file to me: Marc
[at] engineersandbox [dot]tttttttttttttttttttttt com.

Posted on Oct 16, 2008

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Dave, simply find the little black disk or box... simple piezo-electric device. Listen for the sound and go from there. Possibly the piezo is located in the controls within the handset region.

Posted on Oct 15, 2008

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