Can a Transmitter fuse blow in flight

Highlights · 10-25-2007, 10:56 PM

Hey guys, I just had a fuse blow on my JR 9303 while I was setting up my edge in the shop. A very scary thought crossed my mind. Has anyone had a transmitter fuse blow during flight?

What is the manufacturers failsafe???????

rede2fly · 10-25-2007, 11:17 PM

you didnt just happen to take it off charge did ya?? i have had this happen just after charging. called horizon and was told never charge over 1 amp. i now only charge at .7 tenths of an amp no problems.

Edge 540 · 10-25-2007, 11:23 PM

If there is that much current going through your transmitter at any time OTHER than charging you have problems!

DStJohn · 10-25-2007, 11:28 PM

In my 35 years, the only time I have blown a fuse was on the charger. If you didn't have that tx on the charger when the fuse blew, GET IT BACK TO HORIZON! There is NO WAY yo should draw enough current while setting up a model, or flying one!

Highlights · 10-25-2007, 11:30 PM

The above is true. From what I have found on google,JR uses an inline safety fuse for charging purposes. At first thought, if this was the extent of the fuse than the radio should continue to operate. This is not true though . Once the fuse is blown as a result of reverse polarity or too many amps (while charging)than the unit will not operate until the faulty fuse is replaced.

A fuse blowing in flight is not a concern as that is not what the fuse was designed for. It only pertains to charging.

Am I correct?

PS , I had just quick charged my NICD pack at 2C . ( yes I know, it is way too hot)
I was in a rush to centre some servos before dinner. 400mah was put in and the Triton said charging was complete. Took it off and Voila , fuse blown.

Damn I wish I would have taken the back off my transmitter before giving it a few thuds to see if it was a loose connection.
Well I now know there are fuses in them thar JR's

Thanks guys

sprice50 · 10-26-2007, 12:40 AM

	Quote: Originally Posted by Highlights
	Damn I wish I would have taken the back off my transmitter before giving it a few thuds to see if it was a loose connection. Well I now know there are fuses in them thar JR's Thanks guys

Highlights.... reading this is like sacrilige to the JR gods. You must be kidding you would never thump a sensitive piece of electronic equipment right

Guess you'll have to send it in now to get tuned anyway...lol just fly the foamy a couple times to see it is all good.

Same thing happened to me when I had a JR about 12 years ago. Quit working and freaked me out as I was a young kid paying for everything myself!

A buddy of mine actually got a Futaba 7UAPS at about the same time (12 yrs ago) for free as a guy thought it was broken and it was only fuse as well!

Highlights · 10-26-2007, 01:16 AM

I'm a mess.

Going to sleep now.

prizzy · 10-26-2007, 06:03 AM

That is a very scary thing to happen! So much for peace of mind while flying.

exeter_acres · 10-26-2007, 12:54 PM

maybe title of the thread should be changed.....

as it doesn't relate to what actually happened or could happen

rede2fly · 10-26-2007, 01:35 PM

	Quote: Originally Posted by Highlights
	The above is true. From what I have found on google,JR uses an inline safety fuse for charging purposes. At first thought, if this was the extent of the fuse than the radio should continue to operate. This is not true though . Once the fuse is blown as a result of reverse polarity or too many amps (while charging)than the unit will not operate until the faulty fuse is replaced. A fuse blowing in flight is not a concern as that is not what the fuse was designed for. It only pertains to charging. Am I correct? PS , I had just quick charged my NICD pack at 2C . ( yes I know, it is way too hot) I was in a rush to centre some servos before dinner. 400mah was put in and the Triton said charging was complete. Took it off and Voila , fuse blown. Thanks guys

so then you did just charge the radio then turned it on and pop went the fuse. is this what you are saying?????????

VIPER69 · 10-26-2007, 03:35 PM

I like this post. A buddy of mine just sold all his JR stuff because he kept blowing fuses.
Now I can laugh at him and tell him it was due to his charging methods. He was so worried it would fail in flight, but what you guys say makes perfect sense! Charging!

I am glad everyone agreed so rapidly as to what was going on...

sprice50 · 10-29-2007, 01:01 AM

Thing is... lets just say the fuse did go in flight. As highlights said, the radio doesn;t work when the fuse is blown.

If the fuse failed for some reason due to being defective while a plane was in flight it would be lost. Why bother with a fuse then?

10-25-2007, 10:56 PM	#1 (permalink)
Highlights Drop it like it's hot Join Date: Jan 2006 Location: BC Canada Age: 36 Posts: 900	Can a Transmitter fuse blow in flight Hey guys, I just had a fuse blow on my JR 9303 while I was setting up my edge in the shop. A very scary thought crossed my mind. Has anyone had a transmitter fuse blow during flight? What is the manufacturers failsafe???????

10-25-2007, 11:17 PM	#2 (permalink)
rede2fly GRAVITY SUCKS Join Date: Jan 2006 Location: florida Posts: 2,160	Re: Transmitter fuse blown in flight you didnt just happen to take it off charge did ya?? i have had this happen just after charging. called horizon and was told never charge over 1 amp. i now only charge at .7 tenths of an amp no problems. __________________ dont tell me how to do it....... show me how FLORIDA FREESTYLE AEROBATIC ASSOCIATION

10-25-2007, 11:23 PM	#3 (permalink)
Edge 540 Bad-ass Super Contributer! Join Date: Jan 2006 Location: Dayton Ohio Posts: 1,681	Re: Transmitter fuse blown in flight If there is that much current going through your transmitter at any time OTHER than charging you have problems!

10-25-2007, 11:28 PM	#4 (permalink)
DStJohn My Baby with a Synergy? Oh NO! Join Date: Jan 2006 Location: Ft. Collins, Co Posts: 515 Awards Showcase Total Awards: 1	Re: Transmitter fuse blown in flight In my 35 years, the only time I have blown a fuse was on the charger. If you didn't have that tx on the charger when the fuse blew, GET IT BACK TO HORIZON! There is NO WAY yo should draw enough current while setting up a model, or flying one! __________________ Dan St. John East Coast Vario Field Rep 2002 Top Gun Critic's Choice Winner

10-25-2007, 11:30 PM	#5 (permalink)
Highlights Drop it like it's hot Join Date: Jan 2006 Location: BC Canada Age: 36 Posts: 900	Re: Transmitter fuse blown in flight The above is true. From what I have found on google,JR uses an inline safety fuse for charging purposes. At first thought, if this was the extent of the fuse than the radio should continue to operate. This is not true though . Once the fuse is blown as a result of reverse polarity or too many amps (while charging)than the unit will not operate until the faulty fuse is replaced. A fuse blowing in flight is not a concern as that is not what the fuse was designed for. It only pertains to charging. Am I correct? PS , I had just quick charged my NICD pack at 2C . ( yes I know, it is way too hot) I was in a rush to centre some servos before dinner. 400mah was put in and the Triton said charging was complete. Took it off and Voila , fuse blown. Damn I wish I would have taken the back off my transmitter before giving it a few thuds to see if it was a loose connection. Well I now know there are fuses in them thar JR's Thanks guys Last edited by Highlights; 10-25-2007 at 11:36 PM.


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10-26-2007, 01:16 AM	#7 (permalink)
Highlights Drop it like it's hot Join Date: Jan 2006 Location: BC Canada Age: 36 Posts: 900	Re: Transmitter fuse blown in flight I'm a mess. Going to sleep now.

10-26-2007, 06:03 AM	#8 (permalink)
prizzy Bad-ass Super Contributer! Join Date: Oct 2006 Location: High Point, NC Age: 31 Posts: 9,067	Re: Transmitter fuse blown in flight That is a very scary thing to happen! So much for peace of mind while flying. __________________ www.pridegrimm.com Support my 2010 campaign! (lol not yet)

10-26-2007, 12:54 PM	#9 (permalink)
exeter_acres If he Fries it, I will come Join Date: Jan 2006 Location: Johns Creek, GA Age: 41 Posts: 3,038 Blog Entries: 8 Awards Showcase Total Awards: 1	Re: Transmitter fuse blown in flight maybe title of the thread should be changed..... as it doesn't relate to what actually happened or could happen __________________ EXTREMEFLIGHT R/C Tech support ... IMAC members.. Thanks for voting! www.southeastimac.com

10-26-2007, 03:35 PM	#11 (permalink)
VIPER69 Met her in Baghdad... Join Date: Jan 2006 Location: Phoenix, Arizona Age: 39 Posts: 373 Awards Showcase Total Awards: 1	Re: Can a Transmitter fuse blow in flight I like this post. A buddy of mine just sold all his JR stuff because he kept blowing fuses. Now I can laugh at him and tell him it was due to his charging methods. He was so worried it would fail in flight, but what you guys say makes perfect sense! Charging! I am glad everyone agreed so rapidly as to what was going on...

10-29-2007, 01:01 AM	#12 (permalink)
sprice50 Shaun Price Join Date: Jan 2006 Location: Victoria, BC, Canada Posts: 1,516	Re: Can a Transmitter fuse blow in flight Thing is... lets just say the fuse did go in flight. As highlights said, the radio doesn;t work when the fuse is blown. If the fuse failed for some reason due to being defective while a plane was in flight it would be lost. Why bother with a fuse then? __________________ Shaun Click for video - Aeroworks 35% 260, DA85, KS1090 pipe T-Rex 600CF, TP5000s, Futaba 611 gyro Loyal to: Aero-Works.net FUTABA-rc.com DesertAircraft.com ThunderPowerRC.com CastleCreations.com Greathobbies.com

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