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Author Topic: Giant cod problem  (Read 23057 times)

davidsg1a

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Giant cod problem
« on: April 13, 2010, 05:56:40 pm »
Hello gents, Iv bought the giant cod 2.4ghz 4 channel, iv have a problem wen i turn the hand set on the motor goes flying astern, the only way to stop it is to go back and fore on the controller and then its ok, so can anyone help me on how to stop this from happening before i hit someones boat.

David
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Martin (Admin)

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Re: Giant cod problem
« Reply #1 on: April 13, 2010, 06:03:22 pm »
Sounds like the speed controller 'neutral point' is not set up correctly, what make and model is it?
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davidsg1a

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Re: Giant cod problem
« Reply #2 on: April 13, 2010, 06:12:54 pm »
The speed controllers a viper marine 25, Iv tryd the speed controller set up and it seems to be in ok (might be me doing sumit wrong), when its up and running fine its just wen you turn everything on goes full astern and I have to go full astern on the stick and back to stop
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DickyD

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Re: Giant cod problem
« Reply #3 on: April 13, 2010, 06:23:35 pm »
Are you turning the transmitter on before the receiver ?

You have to give the receiver and escape time to sort themselves out after the Tx is turned on, if you don't it does its own thing and you have to switch the receiver off and start again.

Been there, done that, bought the t shirt.
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davidsg1a

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Re: Giant cod problem
« Reply #4 on: April 13, 2010, 06:48:23 pm »
Hello dickyd, I turn the receiver on first wait till the flashing lights on the speed controllers stoped and then turn on the transmitter, then a couple of seconds later it starts going hell for leather and then i have to go full astern on the stick then to stop to stop the motor. once iv done that it runs fine until i turn the transmitter off and turn it back on again it does the same thing.
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gribeauval

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Re: Giant cod problem
« Reply #5 on: April 13, 2010, 06:56:50 pm »
Quote from: davidsg1a on April 13, 2010, 06:48:23 pm
Hello dickyd, I turn the receiver on first wait till the flashing lights on the speed controllers stoped and then turn on the transmitter, then a couple of seconds later it starts going hell for leather and then i have to go full astern on the stick then to stop to stop the motor. once iv done that it runs fine until i turn the transmitter off and turn it back on again it does the same thing.


There is your problem!  Always turn the Transmitter on first. check the throttle is at neutral, then turn on the receiver and allow things to settle down. Shutting down you turn off the receiver then the transmitter.

Mike
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Shipmate60

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Re: Giant cod problem
« Reply #6 on: April 13, 2010, 06:59:14 pm »
davidsg1a
ALWAYS turn the transmitter on first.
This gives the speed controller and the receiver the signal as neutral without it looking for it and going full astern.
If you think about it the electronics require a signal.
With no transmitter signal they will either lock on to another stray signal or look for the transmitter signal.
That is why you ALWAYS turn on the transmitter first.

Bob
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davidsg1a

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Re: Giant cod problem
« Reply #7 on: April 13, 2010, 07:09:29 pm »
Hey bob and mike, iv tryed doing it the way you both sugested and it still seems to be doing the same, i dont know if maybe its a prob with the hand set, >>:-(
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PMK

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Re: Giant cod problem
« Reply #8 on: April 13, 2010, 07:21:17 pm »
To ascertain if the problem is indeed your hand set, try plugging the speed controller into another channel on the receiver. Try also plugging a servo into any and/or all of the channels on the receiver and see if that works as it should. If the problem is still there, then it might be a case that your Viper is up the spout.

Good luck.
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davidsg1a

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Re: Giant cod problem
« Reply #9 on: April 13, 2010, 07:36:21 pm »
PMK thank you very much that seem to do the trick changing the speed controller, and thanks to bob and mike I thought I was supposed to turn the receiver in the boat on first, {:-{

Thanks again guys

David
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Re: Giant cod problem
« Reply #10 on: April 13, 2010, 09:11:02 pm »
Sometimes Viper ESC's do kick and need a few seconds to settle down.

Bob
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davidsg1a

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Re: Giant cod problem
« Reply #11 on: April 14, 2010, 03:32:19 pm »
Hey guys same prob again, giant cod say the problem is because the unit is set up for air craft, it some sort of safety thing planes, he says there is away of sorting it but I  have to contact a guy on there form but waiting for a reply at the moment, if any one else knows how to sort this give me a shout please.

David
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Martin (Admin)

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Re: Giant cod problem
« Reply #12 on: April 14, 2010, 04:03:24 pm »
Hi David,
 Are these the instructions you are using?

   http://www.mtroniks.net/resources/ViperMarineInstructionManual_2.jpg
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davidsg1a

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Re: Giant cod problem
« Reply #13 on: April 14, 2010, 04:09:14 pm »
Hey martin,

Ye thats the instructions i have for the viper, but the speed controllers not the problem, wen I connect the speed controller to any of the other channels its fine, rob at giant cod says it's somthing to do with hand set been set up for planes, but there is a way of changing it he says just a case of finding someone who knows how to do it.
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Martin (Admin)

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Re: Giant cod problem
« Reply #14 on: April 14, 2010, 04:13:02 pm »
OK...
1. plug in a servo to the receiver.
2. plug in a (good) battery to the receiver (4.5-6v and NOT the speed controller)
3. turn on the transmitter
... what does the servo do?

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dodgy geezer

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Re: Giant cod problem
« Reply #15 on: April 14, 2010, 04:21:17 pm »
Also, have you got the 25 quid GC set? They do two cheap ones - one at 25 which is a simple one, not optimised for any particular vehicle, and one at 52 which is specialised.

You can get the 52 pound one in two types, for fixed wing or helicopters. But if you have the 25 pound one, I do not think it makes sense to talk about aircraft setup.....
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davidsg1a

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Re: Giant cod problem
« Reply #16 on: April 14, 2010, 04:29:06 pm »
Martin
When I do that the servo make a wee noise and then it works fine.

Dodgy geezer

Its the 25 quid 4 channel set iv got, I just cant work out wats going on.
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Martin (Admin)

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Re: Giant cod problem
« Reply #17 on: April 14, 2010, 04:40:09 pm »
Right.   :-))

4. Unplug (switch of) the receiver (Rx) battery.
5. Turn the servo arm/disk to one end, till it hits the stops
6. Turn on the Rx.
7. Turn on the Transmitter (Tx)

... what does the servo do?
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dodgy geezer

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Re: Giant cod problem
« Reply #18 on: April 14, 2010, 04:46:44 pm »
The 25 quid 4 channel has two switches inside on the circuit board.

One is the MODE switch, which should just alter which stick works which servo.

The other is the MIXER switch, which 'mixes' the output of two sticks, so one servo can be worked by two of the sticks. Some people have reported getting a set with this switch in the 'MIX' position, which can end up confusing people.

I wonder if this is what has happened? The MIX switch can be got at with a stick through a hole in the battery compartment.  But wait till Martin has gone through basic testing with you before doing any fiddling..... 
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davidsg1a

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Re: Giant cod problem
« Reply #19 on: April 14, 2010, 04:51:52 pm »
Ok iv got the servo in the channel thats giving me probs now, so wat happens is wen I push the rudder over and turn on it stays hard over and then i wiggle the stick and it goes back to centre and if I leave the rudder mid ships and do the start up again it goes straight to hard over.
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davidsg1a

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Re: Giant cod problem
« Reply #20 on: April 14, 2010, 04:56:46 pm »
dodgy geezer

I looked at that switch and it at normal.
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Martin (Admin)

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Re: Giant cod problem
« Reply #21 on: April 14, 2010, 05:00:57 pm »
For reference, these are the switches that dodgy geezer reminded me about!  :embarrassed:
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Martin (Admin)

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Re: Giant cod problem
« Reply #22 on: April 14, 2010, 05:01:57 pm »
Quote from: davidsg1a on April 14, 2010, 04:51:52 pm
Ok iv got the servo in the channel thats giving me probs now, so wat happens is wen I push the rudder over and turn on it stays hard over and then i wiggle the stick and it goes back to centre and if I leave the rudder mid ships and do the start up again it goes straight to hard over.

Does it do that in the other channels to?
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davidsg1a

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Re: Giant cod problem
« Reply #23 on: April 14, 2010, 05:05:30 pm »
sorry miss read your question, no the other channels are fine
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Martin (Admin)

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Re: Giant cod problem
« Reply #24 on: April 14, 2010, 05:10:41 pm »
I think we have your answer!..... a faulty channel.

For testing purposes, try setting up the speed controller in another channel.
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