RC Pro Muting Solution
Between the FCC filing photos and a new teardown video from Alientech, the location of the noisy transducer inside the RC Pro has been accurately determined, and holes drilled in the case to avoid cracking it open, to successfully mute the transducer so it now mews like a kitten, instead of screaming like an alley cat below 15% remaining battery.
The drilling is not without risk, as there are two sets of wires perilously close to the transducer, one set of which is potentially directly above the transducer (the wires that connect the top of the case to the bottom of the case), and the other (the double battery wiring harness) is actually routed directly around it! Drilling lower and to the left is safest to avoid the interior wiring.
I drilled a couple of pilot holes below the location, and found the red and white wires that are above the transducer, moved them aside, and then located the silver top of the transducer by first finding the Philips screw head on its top, which is on the right side of the top of the transducer. I verified the functionality by putting pressure on the silver top of the transducer to muffle the bootup sounds, and then carefully drilled another hole below it, unintentionally lightly touching the insulation on the white wire! Fortunately, no damage! I then used a cut off wooden toothpick through the last hole and poked the sharp end of the toothpick into the exposed silver on top of the transducer with the desired pressure to muffle, but not silence the volume. Covered everything up with gaffers tape to hold it in place, and make it look pretty, and feel comfortable while holding the RC Pro. Mission accomplished!
New Alientech teardown video link, FCC photo, and my photos appear below.
Alientech RC Pro teardown:
FCC photo, with anticipated location depicted in red:
Interior photo from the teardown video link above, with red alignment lines, based upon visible portions of the interior from the outside of the case: the edge of the case, the hole in the case, and the bottom edge of the fan, which can be seen with a really bright light through the air vent screen.
Pilot holes with the actual hole I used is shown in gray, still undrilled, below the red dot depicting the actual location of the silver center of the transducer, as seen through the pilot holes.
Finished result, showing the little bump from the toothpick in red, which can be pressed, as desired, to completely silence the transducer. I want to hear it. I just don't want it screaming at me!
Between the FCC filing photos and a new teardown video from Alientech, the location of the noisy transducer inside the RC Pro has been accurately determined, and holes drilled in the case to avoid cracking it open, to successfully mute the transducer so it now mews like a kitten, instead of screaming like an alley cat below 15% remaining battery.
The drilling is not without risk, as there are two sets of wires perilously close to the transducer, one set of which is potentially directly above the transducer (the wires that connect the top of the case to the bottom of the case), and the other (the double battery wiring harness) is actually routed directly around it! Drilling lower and to the left is safest to avoid the interior wiring.
I drilled a couple of pilot holes below the location, and found the red and white wires that are above the transducer, moved them aside, and then located the silver top of the transducer by first finding the Philips screw head on its top, which is on the right side of the top of the transducer. I verified the functionality by putting pressure on the silver top of the transducer to muffle the bootup sounds, and then carefully drilled another hole below it, unintentionally lightly touching the insulation on the white wire! Fortunately, no damage! I then used a cut off wooden toothpick through the last hole and poked the sharp end of the toothpick into the exposed silver on top of the transducer with the desired pressure to muffle, but not silence the volume. Covered everything up with gaffers tape to hold it in place, and make it look pretty, and feel comfortable while holding the RC Pro. Mission accomplished!
New Alientech teardown video link, FCC photo, and my photos appear below.
Alientech RC Pro teardown:
FCC photo, with anticipated location depicted in red:
Interior photo from the teardown video link above, with red alignment lines, based upon visible portions of the interior from the outside of the case: the edge of the case, the hole in the case, and the bottom edge of the fan, which can be seen with a really bright light through the air vent screen.
Pilot holes with the actual hole I used is shown in gray, still undrilled, below the red dot depicting the actual location of the silver center of the transducer, as seen through the pilot holes.
Finished result, showing the little bump from the toothpick in red, which can be pressed, as desired, to completely silence the transducer. I want to hear it. I just don't want it screaming at me!
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