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[dougal99]

I tried to use an old Sea Rover 15A ESC with a Radio Link rx in a Tamiya truck. Unfortunately, after responding OK for a few moments, the truck ran off at speed and hit the wall hard. As a result the rx light is flashing instead of steady and there is no response from TX input. Was the attempt to use an old style ESC doomed to fail, or was the crash responsible? Any knowledgeable input gratefully recieved.

[Martin (Admin)]

I remember Dave (ACTion) saying that some of the newer 2.4GHz receivers
give out slightly different control  signal to servos/ ESC than the old school Rx.

[dougal99]

Ta Martin, but is thre some sort of feedback to damge the RX?
 
 
PS. See you at the weekend mit sunscreen in hand (umbrella in other hand!) 

[Mad_Mike]

have you tried a different esc? Other than that i dont know.

[Shipmate60]

Some of the cheaper 2.4 sets are aircraft sets.
On initial flash up the throttle goes to full ahead.
You have to operate the throttle fully twice to reset this.
 
Bob

[Netleyned]

Some of the cheaper 2.4 sets are aircraft sets.
On initial flash up the throttle goes to full ahead.
You have to operate the throttle fully twice to reset this.
 
Bob

Full back stick surely.
A tad dangerous for full ahead on an aeroplane.
Radio link has a full bac

k failsafe unless TX is switched on and stick waggled then RX should be switched on.
Loss of signal with failsafe operating should result in full back stick
unless the throttle reverse switch has been operated

Ned

[dougal99]

all useful information but why does the RX not now work?

[malcolmfrary]

all useful information but why does the RX not now work?

Perhaps the impact broke something inside it.  The only "feedback" path from the ESC is (or should be) the power connection.  The signal wire is usually buffered both ends, but of something re-arranged itself in an impact, there is no saying what voltages would be offered where.  An excessive voltage applied to the RX might have left it in the state where its indicator light is the only thing left working.  A loss of signal resulting in a "fail safe" that caused the impact might be just a part of the problem.

[Netleyned]

Have you tried rebinding the RX to the tx?

Ned

[Circlip]

Strange how some old timers haven't forgotten how to encase receivers in a foam overcoat. 
 
  Regards  Ian.

[john44]

Strange how some old timers haven't forgotten how to encase receivers in a foam overcoat. 
 
  Regards  Ian.

what in this weather, it is summer you know.

john

[dougal99]

Have you tried rebinding the RX to the tx?

Ned

yes to no avail. the instructions tell you to wait for a steady light anyway.

[malcolmfrary]

Unfortunately, after responding OK for a few moments, the truck ran off at speed and hit the wall hard.

Just my guess for what its worth - the RX managed to lose signal, a "failsafe" happened, causing the truck to shoot off (a high speed reverse might have been more logical) at full speed, resulting in a high-G stop.  This is the point where soldered joints get their stress test.  If one failed, it ain't gonna work again, because the insides of modern gear are damn tricky to see any detail, let alone actually do anything with.

[inertia]

'Fraid I agree, m'dear. It's best to binnit, innit?
DM

[CF-FZG]

Strange how some old timers haven't forgotten how to encase receivers in a foam overcoat.

Most 2.4 Rx are not designed to be wrapped up in a foam overcoat as it causes overheating, just mount them using velcro or similar to provide an anti-vibration mount.

[Netleyned]

It might be worth opening the RX case (it only clips together)
There is a piggyback Rx board that may have become dislodged.
Might be worth checking the solder joints on the legs of the two
capacitors. If nothing obvious then Binnit


Ned

[Circlip]

Most 2.4 Rx are not designed to be wrapped up in a foam overcoat as it causes overheating, just mount them using velcro or similar to provide an anti-vibration mount.

  Who said wrap?
 
  Most receivers are not designed for multi G instant deceleration.
 
 O/P I Wonder if you've got a cracked "Lead Free" solder joint?
 
  Regards   Ian

[dougal99]

Thanks for the input everybody, I think we have beaten this one to death now. Answer big knocks can kill RXs. Not sure foam would have made any difference as the G force would have been the same. The RX was taped in and did not appear to have moved.
However, you have reminded me about the failsafe on the throttle channel which I forgotten about. Is there a way to counter this apart from using a different channel?

[Gazza]

flashing led indicates what we flying boys call a brown out . . . lose of signal and if it was a new RX then they re bind in some thing like 200th of a second ( spectrum )
 
All that is needed is for you to re bind to TX and should be ok

[bj]

I tried to use an old Sea Rover 15A ESC with a Radio Link rx in a Tamiya truck. Unfortunately, after responding OK for a few moments, the truck ran off at speed and hit the wall hard. As a result the rx light is flashing instead of steady and there is no response from TX input. Was the attempt to use an old style ESC doomed to fail, or was the crash responsible? Any knowledgeable input gratefully recieved.

You mentioned RADIO LINK, all four of four Radio Link Tx's in my club consistently debonded on channel 3. All four got dumped! I now use a [size=78%]2.4 gig Hitec Optic 6 Tx and HobbyKing "fitz" Rx's. The Rx's are half the price of the Hitecs[/size]

[Gazza]

   when I was car racing there was a few who used some cheap 2.4 radio sets and problems they had  . .  and to be honest there just not worth it . .
Your car/ plane and of course Boat costs quite a bit in kit form and of course scratch built let alone the man hours that go into them and then you go for a cheap 2.4 or what ever system . . Its just not worth it to be honest
  I only use spektrum  2.4 on my planes now and after 6 yrs I cant fault them.
You will find a few DX6i's on e bay going cheap as the plane bods upgrade to the newer versions and of course having all them channels for . . .lights. . . water  cannons. . winch. . . and of course what ever else you want to operate so for around £50. . peace of mind and safe I mean why have a boat that's worth £800 and a cheap nasty £30 radio that runs into the bank as you lose control . . . 
But that's just my point of view I guess there is others 
 
and of course £150 for a new set is another route but safer on the lake   

[essex2visuvesi]

In my Flying days I was always Futaba man, I have since moved over to Spektrum and JR (JR9303 TX).  I will admit I do use the Orange RXs in my lower value items (but I have a JR R921 9-Channel in my 1:6 DR1)

I tried a cheap TX (Flysky 9x) and had no luck with it.

[Gazza]

Yea same here still have a few Futaba sets LOL. . .
 yea also the orange RX are around £6 to £8 so dirt cheap to use with the Spektrum and 6 channel
 

 
WOW new type RX . . but still under a tenner and better range 

You cant go wrong with one of these and problems post away I have a good insight to programing them if need be

[essex2visuvesi]

This is mine



What sold me on this model was the 2 proportional conrols on the side of the unit



there's one the same on the other side too :)