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150 Class Electric Helicopters 150 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 08-10-2019, 10:14 AM   #1 (permalink)
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Join Date: Aug 2019
Location: Norway
Default 150x immediately shuts down

After its last crash, my trex 150x shuts down after about 1 second of applying throttle. Normal initialization, main and tail motors both spin, but then the whole thing just suddenly dies. The indicator stays solid blue, and if I try to pull the battery and replug it, the indicator most of the time goes solid white and I only get the three beeps. If I leave the heli for a while I can fire it up again and get the same behavior.


Any suggestions?
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Old 08-10-2019, 03:35 PM   #2 (permalink)
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I had a bad servo cause something like this. It behaved as if the motor wires were loose. I soldered the motor wires to the board and that did not fix it. I replaced an entire servo that had bad gears (rather than just replacing the gears for the tenth time) and that fixed the problem.
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Micros: Hisky HCP80, ESKY 150x,K110, Trex-150X x 2 Mid: Oxy 3 T 2018 Version, Oxy 4 360 Big: Trex-500X, Oxy 5, Trex-550X, Trex-700X Scale: MD500 TOW Defender (Trex 500 size) Vintage: Trex 450 SE V2
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Old 08-12-2019, 10:59 PM   #3 (permalink)
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Sounds to me like a short circuit. One my larger birds I have had similar problems on spool up where I found out my esc speed communication signal was shorting to frame at a pinch spot.
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Old 03-01-2021, 07:55 PM   #4 (permalink)
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Join Date: Feb 2019
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Quote:
Originally Posted by BeigeVolvo View Post
After its last crash, my trex 150x shuts down after about 1 second of applying throttle. Normal initialization, main and tail motors both spin, but then the whole thing just suddenly dies. The indicator stays solid blue, and if I try to pull the battery and replug it, the indicator most of the time goes solid white and I only get the three beeps. If I leave the heli for a while I can fire it up again and get the same behavior.


Any suggestions?
your grs board is defective.same as my case.after i replaced the new grs board the problem solved.
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