More silly newbie questions.

[tox]

My easystar is practically complete for phase one of this venture. (No video equipment, no bells and whistles, just the plane ready to take some newbie training/abuse.)  :P

Once I get the electronics tested I can glue this beast and get out there.....BUT last night I plugged everything together and had no response from the rx. I had the jst type plug from the esc going into number 3 (throttle) on the unknown rx which is red with the writing SUNIP on it. From what I can gather the 3c 20s lipo powers the ESC which then reduces the voltage to less than 6v to power the other servos and of course control the motor. I have not read anything about being able to bind a 35mhz tx and rx as apparently this is only for 2.4 radios so I can rule that out.

I am happy to accept that this SUNIP rx is not compatable with my Futaba 6 exap and leave it at that but then I tried something else... I also have a R136F Futaba rx that I know is factory bound with the tx and which I have tested before (with Futaba servos) so I know it works. Anyway last night I plugged in the R136f – throttle to 3 and the elevator to 1 and the rudder to 2 but still no response. (With lipo plugged in obviously!)  I then unplugged the throttle and inserted a 4.5 v supply to the R136f  which has a B for battery slot and I could get two of my other futaba servos working but not the standard easystar servos or the motor ?

I am guessing that I should be looking for fault with the ESC & motor then.......?
Or am I missing something else?

The plane and rx and esc and the b/l motor were bought second hand so I cant confirm that they are working but you know, people would sell you something broken and act surprised but I am hoping that maybe I am just missing something....

PS. The tx is in PPM.
PPS. The servos in the easystar are standard micro analogs.

Do any servos work with any rx, or are there compatability issues ?

Any thought on this for a grateful newbie? 
;)

[tox]

Some pictures are always good...


Tx



The rx - photo taken a while ago.



A taste of the build.



The tx again with servos...

[Coyote]

It could be a few things, first binding. The 35mhz systems dont need binding as the crystal channels choose which rx to talk to. So first obvious thing to check is the tx and rx crystals match, and you have the rx crystal in the rx not the tx.

Not that this has anything to do with it but elevator should be in channel 2 and rudder on channel 1. Not how you have it.

Next thing to check is when powering up ( with no prop on for safety ) is that your throttle is not reversed. If it still doesnt do anything raise the throttle to max ( make sure prop is off ) and see if that does it. If it does, power down and reverse the throttle channel on futaba 6

Try that and let us know

[electrotor]

Hi Tox

Could be a throttle position problem. At tx switch-on the throttle should be set to off, ie the stick fully back. The ESC will only arm itself and function properly if this is done. First of all though, you must ensure that the throttle is not reversed. You should be able to do this via the tx programming.

[tox]

So here is where I am at now...

Have put to the side the Sunip rx with crystal listed at 35.230 type 35-12. Tx crystal says 35.010.

Am back trying with the R136f rx. Tried the reversing of throttle servo three on the tx as well as giving it full power and back down again.

Unplugged everything, sat back in my chair, stuck a chocolate in my mouth and scratched my head. Then plugged 3 futaba servos in with the small nicad and all of them worked. Plugged one of the Easystar servos in but nothing....

Lipo is charged and testing fine...

Am now back to eating chocolates and scratching my head...

Tox

[Coyote]

Have put to the side the Sunip rx with crystal listed at 35.230 type 35-12. Tx crystal says 35.010.

Theres your problem, 35.230 doesnt match 35.010 They are different channels

[n00b@FPV]

also want to make sure u either get single or dual conversion-i think u want dual

[tox]

Coyote I have put that one aside and stopped trying with that rx altogether.

Am working with the other rx,the Futaba R136F that has given me the  results above. You know, only working with the other servos but not the easystar Towerpro microserver and no motor...

Tox

[Coyote]

What crystals are in your futaba rx and tx then ?

[tox]

Coyote the Tx is  fm 35.010, the futaba rx is also 35.010.

@ Jakerevell as far as I know the rx is single and dual conversion (quickly reading up on it now  :laugh: ) Do I set the single /dual on the Tx cos there's nothing to set on the rx itself, no jumper or anything like that...

Will reset the Tx altogether and see if that does anything. ^-^

Thanks for the help guys.

Tox

[Coyote]

Make sure your rx crystals in your receiver and tx crystal in transmitter.

No you dont set dual / single in the tx.

Make sure your throttle trim is at bottom, power up. If nothing then max throttle out and trim to full too. If still nothing then not a clue as yet :(

[tox]

Whoo hoo, managed to solve it before I irritated the crap out of you guys with my silly newbie questions....

It's always the simple things you should check first eh! Throttle servo plug three had wires not making contact in the fitting,  out of view. Powered everything up and started jiggling wires about and suddenly the esc started beeping really loudly, proceeded to poop myself,not literally but did so with a massive grin on my face. It makes sense now why it would work with a separate battery but not the power from the esc.

So chuffed it's nothing more serious.

Once again, Thank you for the help and patience ! I help in IT and every now and then people's (whats obvious to me or others) questions that they ask (without trying to help themselves just a little bit by reading the documentation)can try a saints patience.

[Coyote]

Sorted, its always something daft, we`r only human :)

[mark1975]

Questons are good ask ian ive asked hime loads  :laugh:

[electrotor]

Dodgy connections are a worry. If the plug simply wasn't pushed in far enough then OK, but if you find that connection is only made after wiggling the wires you really must find out exactly what the cause is. It could be broken wires and if they are not broken at the connector then it can be a pain to trace. I lost a model once due to bad contacts but it only manifested itself when the model was flying around and the motor vibrations caused intermittent contact. Control/no control/control/no control. Eventally gravity won, as it always will. As they say "Don't try and beat gravity, you will never win. The best you can hope for is a draw."