JR DSX7

[4throttle]

Hi Everybody,

I'm from Malaysia..beginner in rc heli and fly the T-rex 600 N Pro..i've just bought the new JR DSX7..just changging from Futaba 6exh..already setup all..but yesterday..when i went to the flying field..i'm swithing on the radio..then switch on the rx batttery..but the rx seems did not receive any command from the TX..the weird thing is..my gyro initialiazed..but the LED indicator on rx did not appear..all 4 servos seems in fail safe..after that.i heard my tx battery alarm sound..

My question is..Is it because my Tx battery going low and the rx behave like that?

Thanks in advanved.

[Pinecone]

Probably.

[zipperone]

You've prbablylost binding, Try binding the RX again with the TX

[Pinecone]

When you power up the Rx, it sends the signal it stored at binding to all the channels except the throttle. So the gyro can initialize without the Rx ever linking to the Tx.

If the Tx battery is too low, it may not turn on the RF section, so no signal, so no control.

This can also happen if the area is saturated with 2.4 RF (not seen tohappen) or if the Tx is too close to the Rx, or you are trying to link under a metal roof, or next to a metal wall.

Assuming you used this Rx during setup, it is unlikely that it unbound.

[ecupro]

Hi Everybody,

I'm from Malaysia..beginner in rc heli and fly the T-rex 600 N Pro..i've just bought the new JR DSX7..just changging from Futaba 6exh..already setup all..but yesterday..when i went to the flying field..i'm swithing on the radio..then switch on the rx batttery..but the rx seems did not receive any command from the TX..the weird thing is..my gyro initialiazed..but the LED indicator on rx did not appear..all 4 servos seems in fail safe..after that.i heard my tx battery alarm sound..

My question is..Is it because my Tx battery going low and the rx behave like that?

Thanks in advanved.

Hello there,
I'm from Malaysia too( Ipoh ).
Look like your Tx battery going low. Once the receiver did not receive any signal form your tansmitter, your receiver will goto fail safe mode.
Next time, please charge your transmitter battery properly ( at least 8 hours or over night )

my phone no ( 017-5730716 Mr.Leow )

Bye.

[4throttle]

Hehehe..thanks all for the reply..after i fully charge the radio battery and binding it again all work find again..

[4throttle]

Hello there,
I'm from Malaysia too( Ipoh ).
Look like your Tx battery going low. Once the receiver did not receive any signal form your tansmitter, your receiver will goto fail safe mode.
Next time, please charge your transmitter battery properly ( at least 8 hours or over night )

my phone no ( 017-5730716 Mr.Leow )

Bye.

Hi Mr.Leow,

Actually my home town at Ipoh as well..I'm from Chemor and currently working at PJ state now..I do join www.malaysia-rc.com and www.umranrc.com forum as well..same nickname..

I'll give a call to you when i back to Ipoh..do you fly at the Puspakom site?

[ecupro]

Hi Mr.Leow,

Actually my home town at Ipoh as well..I'm from Chemor and currently working at PJ state now..I do join www.malaysia-rc.com (http://www.malaysia-rc.com) and www.umranrc.com (http://www.umranrc.com) forum as well..same nickname..

I'll give a call to you when i back to Ipoh..do you fly at the Puspakom site?

Hello 4throttle,
Ha..ha..your nickname is 4throttle, you must driving Toyota Black Top. Any way this is Heli Forum....so back to Heli....

Yes, I did not fly but i saw them flow ( I just got my Spektrum DX7, i am a old time flyer )
Yes, all most every sunday morning ( 10:30am to 14:00pm ) at the Puspakom.
If you drop in, just give me a call.
I am still looking my heli, Align 600 is in my first top list ( My Local Shop did order some Align 600 compatible which is from China )

Bye.

[ecupro]

Hello 4throttle,
Ha..ha..your nickname is 4throttle, you must driving Toyota Black Top. Any way this is Heli Forum....so back to Heli....

Yes, I did not fly but i saw them flow ( I just got my Spektrum DX7, i am a old time flyer )
Yes, all most every sunday morning ( 10:30am to 14:00pm ) at the Puspakom.
If you drop in, just give me a call.
I am still looking my heli, Align 600 is in my first top list ( My Local Shop did order some Align 600 compatible which is from China )

Bye.

Hello there,
Recently, my LSH came in Jr, DSX7. I found out that the charger for the transmiter and receiver is only 50mA for the transmitter and the transmiter battery is 1500mA.
So, you need 30 hours to full charge the transmitter battery ( depend on the usage )

So, just turn the transmiter and check the battery reading.
For full charge, it should be 11.1 ~ 11.2 V.
Any way, for safe side, just check on the transmitter reading.

Bye.

[Pinecone]

You sure both sides are 50mA?

The standard US JR charger for the X9303 is 150 mA on the Tx side. 50 mA on the Rx side.

[ecupro]

You sure both sides are 50mA?

The standard US JR charger for the X9303 is 150 mA on the Tx side. 50 mA on the Rx side.

Hi Pinecone,
If he drop by, i will ask him to bring along with it. May be some pics.

Bye.

[ecupro]

Hi Pinecone,
If he drop by, i will ask him to bring along with it. May be some pics.

Bye.

Hello there,
He send in the message for me.
I will try to get some pics.

http://i176.photobucket.com/albums/w177/ecupro/DSX7_Charger.jpg

[Pinecone]

50 mA for the Rx, 120 mA for the Tx.

[ecupro]

50 mA for the Rx, 120 mA for the Tx.

Hi Pinecone,
Finally, he drop in to the flight site.
Here is the picture.

http://i176.photobucket.com/albums/w177/ecupro/DSX7_Charger_Photo.jpg

[Pinecone]

That is VERY strange.

120 mA output on the Rx, and only 50 on the Tx.

So the Tx 1500 mAH pack will take 30+ hours to charge.

I would put a milli amp meter between the charger and Tx to see for sure. I wonder if they did the label wrong?

[niteflyer]

hi guys...anybody knows the difference between jr dx7 and spektrum dx7se??i want to get one of those...by the way, ive a jr x3810...tried changing its current mode 1 to mode 2.i moved the ratchet and checkd with the digital display.....nothing!i cant seem to swop the channels!help.......

[ecupro]

Hello Pinecone and others,
I took a photo from Helicopter World Magazine.
http://i176.photobucket.com/albums/w177/ecupro/DS7_Charge_Magazine.jpg