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HelicopterRadio - Spektrum DSM › lights blinking on spektrum rec?
10-11-2010 01:30 AM  7 years agoPost 1
jcoats

rrApprentice

central VA

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Well I was at a new flying field this week with my 600nsp when it happened..

I was in the middle of a tight right turn when the tail jumped then went crazy spinning out of control..I hit hold and got it down fine..then after getting my b--ls out of my stomach I looked over the bird...the tail rotor control arm was broken and the ball was still in the link...but the lights were blinking on the rec? Part of my preflight is to make sure the lights are solid..after seeing the control arm broke I figured that was the culprit..
But I'm not sure after seeing those lights blinking...

What do they mean?..

Think I should replace the rec?

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10-11-2010 01:34 AM  7 years agoPost 2
marked23

rrKey Veteran

Lynnwood, WA

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The Spektrum lights flashing mean that there was a voltage drop below the minimum required to operate the receiver.

If you happen to turn-off your receiver and turn it back on without resetting the transmitter, the lights will flash. In this case, the flashing is a false alarm. Always be sure to see that the lights are on solid before taking off; that way you can avoid the panic of a false alarm.

That being said, what happened to you sounds like the real deal. You spent all your voltage (probably just for a sec, and that's enough) when your tail broke. Perhaps the gyro went wild trying to drive your tail servo and that caused the low voltage.

I would examine your power supply system (battery, switch, regulator, etc.) to be sure you have good wiring going from your battery to the receiver.

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10-11-2010 01:37 AM  7 years agoPost 3
altima1779

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Toledo, oh u.s

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The blinking light means you had a brown out. Meaning you lost power to the receiver or it went below a certain voltage.

I had this happen a couple time on my contest heli. First time i was in a hover and heli spun 180 degrees on it's own. I thought it was a one way and didn't have a problem for a long time.

The second time was after nationals and i was doing a 540 stall turn when i lost all control, thankfully after doing some wicked piro flips on it's own it came back and i was able to save it.

Long story short it was a cold solder from the factory on a regulator.

I would check and double check all connections and health of the battery.

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10-11-2010 01:57 AM  7 years agoPost 4
FILE IFR

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Anytown, USA 01234

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Yup, I would check into it fasst, you don't want that to happen again.

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10-11-2010 02:23 AM  7 years agoPost 5
jcoats

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central VA

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Thanks for the input guys...I'm running the 2n1 and a 2 cell 5000 outrage pack,..

I heard that the switches on the 2n1 are prone to failure? I've never had a problem before..

So ill check over the elec connections..the battery is fairly new maybe cycled it 15 times..

What about a satellite rec coming unplugged in flight? What would happen?

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10-11-2010 03:03 AM  7 years agoPost 6
2LTime

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Walworth,NY

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Is the blinking/flashing protocol written somewhere by horizon. Mine blink sometimes and sometimes don't at power on. They have always seemed to work fine and the flight log after the flight shows no bad things happened.

Jeff

If you can't learn to do it well, learn to enjoy doing it badly.

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10-11-2010 03:38 AM  7 years agoPost 7
altima1779

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Toledo, oh u.s

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I would suspect that it was the 2 in 1 switch. I would turn on and tap or wiggle the switch unit.

If remote unplugs the receiver will still work. I have had that happen before on a 90 size.

If the remote is blinking before take off it is probably because you turned the heli on off and back on without turning the radio off and on again.

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10-11-2010 04:42 AM  7 years agoPost 8
marked23

rrKey Veteran

Lynnwood, WA

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So long as other satellites are still plugged in, should be no problem if one becomes unplugged. When you plug it back in, that one satellite will be blinking. Try it.

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10-11-2010 05:23 AM  7 years agoPost 9
BigMc70

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Abilene, Texas-USA

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If you turn the heli off and you don't cycle the power on the TX before you turn the heli back on the led will flash it thinks you had a power failure aka brown out. Make sure you cycle your power on the TX every time you power up your heli. it will do the same if you turn on the TX and fail to power up the receiver with in 30 seconds. Hope this is what your problem is and not anything else. I have had the switch act a fool on a 2 in 1 and have never lost power the leds on for the battery check goes a little crazy but the unit still works like a champ.

Raymond McFaul
Team Grand RC

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10-11-2010 05:45 AM  7 years agoPost 10
dkshema

rrMaster

Cedar Rapids, IA

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What those blinking lights mean:

http://www.spektrumrc.com/Articles/...?ArticleID=1855

BTW -- if you cycle the battery power on your RX while the TX is turned on (or have some trouble plugging in the battery on your electric heli while getting ready to fly, you'll get the blinky lights.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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10-11-2010 01:25 PM  7 years agoPost 11
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Yup, I would check into it fasst, you don't want that to happen again.
Not true at all if you lose power. You better make sure your power system is up to snuff........Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-11-2010 02:16 PM  7 years agoPost 12
jcoats

rrApprentice

central VA

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I think the fasst comment was talking about futaba...lol..

So your saying I should to be safe...change battery,regulator,etc?

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10-11-2010 02:57 PM  7 years agoPost 13
Ronald Thomas

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Gainesville, Fl, USA

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I know it was I just think that some people are under the impression that the FASST system is completely immune to power issues.......Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-11-2010 03:03 PM  7 years agoPost 14
jcoats

rrApprentice

central VA

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Got it now . Thanks dude

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10-12-2010 07:02 PM  7 years agoPost 15
bmwe30m3

rrNovice

Okinawa, Japan

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I had the same thing happen about two months ago, and then again the other day. The first time resulted in a major crash. I was in IDLE-UP and did a full power climb out from about 2ft AGL. About two seconds later, I lost all control and it seemed as though the collective servo did a full down hardover. 15ft straight down with full low pitch. Not good.

So, I rebuilt it, replaced the AR7000 rx with an AR7100 as the old one was destroyed, and therefore got rid of my Arizona regulator (I'm using an A123 6.6v Rx battery with 5965MG cyclics, 6965HB throttle, and 770 3D/8900G regulated off the AR7100 for the tail). One less variable in the equation, right? So I double checked all my connections with battery power only, wiggled connections everywhere, and even did the same with blades off and engine running. Everything was rock solid. I then did a few hover checks with seriously shaken confidence. Everything seemed to be ok.

I took it out a couple weeks ago and was hovering in NORM. Nice steady hover and all of a sudden, no control again. Tail spin commensurate to an increase in pitch with no reaction from the tail, steady climb and again I'm envisioning a pile of rubble. Luckily, this time I got control back after 3-4sec. and at about 10 ft. I was able to put it down and shut if off. I noticed the Rx and both remotes flashing, so I checked the battery voltage. I had fully balance charged it before the incident, and when I checked it after about 5 minutes of hovering, it showed 6.3v. It should be higher than that right?

Anyway, I have installed a brand new Hyperion LiFe 6.6v battery and want to try it out, but damn I'm nervous about it. Any thoughts, or do you think I've found the culprit? I'm using a Dx7 tx that I bought new about 2 years ago, and don't have any problems with it losing signal to my 450SE. Thanks ahead of time for any inputs.

CJ

Combat Search and Rescue - If you go down, we will come...

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11-02-2010 06:42 PM  7 years agoPost 16
blbills

rrKey Veteran

Provo, UT

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What does a blinking light mean if only one of the two satellites are blinking? I check before the flight and they were both solid. And no it didn't come unplugged.

700e
vbar
dx8

Brian

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11-02-2010 06:59 PM  7 years agoPost 17
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Means you lost power somewhere. Check your plugs to the sats if only one is blinking.........Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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11-02-2010 07:36 PM  7 years agoPost 18
blbills

rrKey Veteran

Provo, UT

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I did and everything checks out. Is it possible to have a power drop that only one sat sees?

Brian

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11-02-2010 07:37 PM  7 years agoPost 19
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Sure but I would think the lead to the sat or the sat itself would be the issue first.

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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