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Radio - JR & Spektrum DSM > Spektrum brown out. Who what why where and when?
 
 
johnbs8
Senior Heliman
Location: roseville michigan

My Posts This: Topic  Forum

i had my Dx7 lose bind after every time i powered down my setup. it also started to have signal delay for about 4 sec. i sent it to horizon and they are sending me the SE version now. its taken them nearly a month.
Quote 
How can a new dx7 have this problem?
**** Happens !!

Raptor 50V2 coverted to Titan SE, OS 50 hyper,MP5 SB pipe, align gov. GY520 gyro
07-04-2009 04:14 AM
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Quicktoy
Senior Heliman
Location: Daytona Beach, FL USA

My Posts This: Topic  Forum		Ya I'm gonna take lipo out and send back to horizon. Must have messed up voltage regulator

Cyber E Srimok, Trex 700 Suzi Hans, Trex 700 LE, Trex 700NP, Trex 450 Pro, $50 Gaui 425
07-04-2009 05:28 PM
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Olli-Pekka Mahrberg
Senior Heliman
Location: Finland, Joensuu

My Posts This: Topic  Forum		I think I have the same problem and I just crashed my 700E because of it. I've also had a few blockout with my Rave. The 700E went in head first and didn't respond. The receiver lights were blinking when I got to the heli. It was about 20m away from me so it wasn't a range problem. I'm using a 2s2p 3200 pack in my 700E, and it was almost fully recharged.

www.olli-pekkamahrberg.webs.com
07-04-2009 05:36 PM
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Quicktoy
Senior Heliman
Location: Daytona Beach, FL USA

My Posts This: Topic  Forum		Sorry to hear that man. My lights On Satelite don't flash just orange light goes out and a second later comes back I'm betting it's due to voltage regulator in my dx7

Cyber E Srimok, Trex 700 Suzi Hans, Trex 700 LE, Trex 700NP, Trex 450 Pro, $50 Gaui 425
07-04-2009 05:40 PM
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AirWolfRC
rrProfessor
Location: 42½ N, 83½ W

My Posts This: Topic  Forum
Quote 
I'm not thinking RX (heli) is problem . I had DX7 do this it was connections on TX reg . I re soldered and all was fine .
? ? ? That sounds like the TX is at fault - - -
The regulator feeding the RF module in the DX7 is a linear regulator and will not handle excess voltage. And Spektrum knows this.

There has been a switching regulator replacement thread before that will fix this problem and give extra TX battery life in the switch.
07-04-2009 05:56 PM
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f penfold
Key Veteran
Location: uk

My Posts This: Topic  Forum		the only time i have had this issue is when a put these rx in a carbon fuzz glider and the glider when out of sight below the cliff had no control for a few secs but as soon as i got closer to the edge of the cliff it all came back.

I know I used lock tight why did my head explode
07-04-2009 07:01 PM
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Whopper Chopper
Senior Heliman
Location: Atlanta, GA

My Posts This: Topic  Forum		I replaced my receiver (AR7000) and checked my solder joints (Voltage Regulator Mod). Hopefully my test flight will end successfully.

"Helllooo Roto"
07-05-2009 05:27 PM
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johnbs8
Senior Heliman
Location: roseville michigan

My Posts This: Topic  Forum		AirwolfRC,
Quote 
There has been a switching regulator replacement thread before that will fix this problem and give extra TX battery life in the switch.
anyone have the link to that thread?

Raptor 50V2 coverted to Titan SE, OS 50 hyper,MP5 SB pipe, align gov. GY520 gyro
07-05-2009 05:47 PM
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9387ASH
Elite Veteran
Location: UK

My Posts This: Topic  Forum
Quote 
How many people have (that you know) actually fried a TX?

Odd you should say that but....

Have just repaired a X3810 (8103) that had suffered cremation damage to the RF pcb.

Last month I repaired 2 x DSX9's (X9303) that had Q1 burn outs due to LiPo's.

Previously ?? A slack handful !
07-05-2009 09:33 PM
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AirWolfRC
rrProfessor
Location: 42½ N, 83½ W

My Posts This: Topic  Forum
Quote 
Last month I repaired 2 x DSX9's (X9303) that had Q1 burn outs due to LiPo's.
Not having been inside a X9303, can you elaborate on where Q1 is in the circuit ?
07-06-2009 04:02 PM
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9387ASH
Elite Veteran
Location: UK

My Posts This: Topic  Forum		Q1 provides the VCC voltage and is fed from the main battery pack via the fuse and IS NOT SWITCHED.

If this blows, the typical symptom is that whenever you turn off and turn on again, it defaults to the same model memory each time. So say you where on memory 7, you turn off and turn on again, it jumps to memory 4 for example each & every time. No changes are saved etc etc ...
07-06-2009 10:19 PM
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AirWolfRC
rrProfessor
Location: 42½ N, 83½ W

My Posts This: Topic  Forum		Provides Vcc to what ? . . . the memory chip ? or the whole TX ?
07-06-2009 10:35 PM
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haq0901
Senior Heliman
Location: Miami, FL USA

My Posts This: Topic  Forum		Stock voltage regulator isn't cut out for lipos, I replaced mine with an aftermarket regulator and haven't looked back. Battery lasts me 45 days without charging. Cant possibly ask for more.
07-06-2009 11:00 PM
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denheli
Veteran
Location: aurora,co

My Posts This: Topic  Forum		General thoughts are that there is a problem with the TX. So I sent the Tx and 3 AR7000's back to Horizon. Will update with results.
-C

Always learning TT R50 V2 Red, TT R50 V2 Blue FBL, Freestyle 90 Gaui 425
07-07-2009 10:52 PM
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Quicktoy
Senior Heliman
Location: Daytona Beach, FL USA

My Posts This: Topic  Forum		John Adams from horizon read my post on here called me today and is going to take care of it. One day turn around. What a great guy is all I can rave about

Cyber E Srimok, Trex 700 Suzi Hans, Trex 700 LE, Trex 700NP, Trex 450 Pro, $50 Gaui 425
07-07-2009 11:06 PM
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denheli
Veteran
Location: aurora,co

My Posts This: Topic  Forum		Would be nice to get quick service like Quicktoy

Always learning TT R50 V2 Red, TT R50 V2 Blue FBL, Freestyle 90 Gaui 425
07-07-2009 11:57 PM
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Whopper Chopper
Senior Heliman
Location: Atlanta, GA

My Posts This: Topic  Forum		Update

Sad to report that my T-Rex 500 dropped from about 6 feet up and 20 feet away. .. Now I need a new transmitter.

Issue Resolved

Solder joint was loose as a result of the Voltage Regulator Mod..

"Helllooo Roto"
07-08-2009 02:25 AM
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EVO76
Senior Heliman
Location: New York , U.S.A.

My Posts This: Topic  Forum		I've had great service from Horizon. I sent in a crashed RX, had a new one before the weekend....
07-08-2009 02:38 AM
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denheli
Veteran
Location: aurora,co

My Posts This: Topic  Forum		Horizon has always done right by me. I have no complaints. When I spoke to the service rep. he said that they were out 20 days on returning products.
-C

Always learning TT R50 V2 Red, TT R50 V2 Blue FBL, Freestyle 90 Gaui 425
07-08-2009 04:30 AM
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Duck Head
Senior Heliman
Location: Portland, OR USA

My Posts This: Topic  Forum		Had it happen to me yesterday. Flying my 600, thought that it was a problem with the servos. So I didn't trust it to fly again. Grabbed the 700 and threw her up in the air. About 1/4 tank later had no control and a piro that I couldn't stop. Almost like it rebound, and in she went. At least I know its the radio not the heli, I guess.

westsideheli.com
FlexPro
Team 4point Hover
07-17-2009 04:24 PM
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Radio - JR & Spektrum DSM > Spektrum brown out. Who what why where and when?
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