RCCrawler Forums

Reflection · 09-24-2006, 04:37 PM

These Mambas always have a series of beeps when you plug the battery in and then when you turn the controller on. Mines not doing anything. I have full control of the steering,it's working fine but I have no response at all from the throttle. When I plug a fresh battery into the Mamba and turn it on,the lights blink a few times....pause....blink a couple more times and then go solid. When I push the throtle to go foward,the lights go out,push the throtle to go into reverse and the red light flashes. There is still no movement in either direction and steering works fine.

I thought maybe the reciever was junk. I took the brand new reciever out of my brothers truck I built for him to try. I know it's fine cuz I've only run it once. I put it in mine and nothing changes. Put it back in my brothers truck and his still works fine. That tells mre the reciever in mine is still good???? It's doing the same thing with either the new reciever or the old one.

Any ideas guys????

Thanks,
Steve

BTW,it's a Mamba Maxx,I'm running....

BENDER · 09-24-2006, 04:40 PM

Sounds like the trouble I was having at the Nationals. People were telling me it was the power switch, but it's been working fine since I got back.

Cole82 · 09-24-2006, 04:40 PM

Sounds like your motor is unpluged.

Reflection · 09-24-2006, 04:44 PM

Quote:

Originally Posted by BENDER

Sounds like the trouble I was having at the Nationals. People were telling me it was the power switch, but it's been working fine since I got back.

Do I need to drive it to Moab and come back to fix it

That sounds odd I can try to put a new switch it in maybe,I just hate hacking into factory wires,just incase I need to return it for service or something.

Reflection · 09-24-2006, 04:45 PM

Quote:

Originally Posted by Cole82

Sounds like your motor is unpluged.

I've checked the motor wires a few times,they are definitly hooked up.

rockwerks · 09-24-2006, 09:04 PM

Quote:

Originally Posted by raptorman57

I've checked the motor wires a few times,they are definitly hooked up.

what proceedure did you do for the initial setup? when first did mine I had the same issue and I redid the initial setup and now it functions correctly. took 10 times with the spectrum to get it rght

Reflection · 09-24-2006, 09:19 PM

Quote:

Originally Posted by rockwerks

what proceedure did you do for the initial setup? when first did mine I had the same issue and I redid the initial setup and now it functions correctly. took 10 times with the spectrum to get it rght

Before I got mine,JRH run it in his rig to test it out. I basically hooked it up and run it. I got to thinking,I tried reprogramming it today. Before I did it,the Catle link,said there was a newer version and asked if I wanted to download it. I said no and continued(with the older version). Would this be the culpurt. Maybe I'll try to get the latest version and try to reprogram it.

I'm just using a regular ol' TQ3 with a modded switch for rear steer. I don't think that would be an issue,would it? I even tried switching crystals and tried my sons bone stock TQ3 and no change.

rockwerks · 09-24-2006, 09:23 PM

Quote:

Originally Posted by raptorman57

Before I got mine,JRH run it in his rig to test it out. I basically hooked it up and run it. I got to thinking,I tried reprogramming it today. Before I did it,the Catle link,said there was a newer version and asked if I wanted to download it. I said no and continued(with the older version). Would this be the culpurt. Maybe I'll try to get the latest version and try to reprogram it.

I'm just using a regular ol' TQ3 with a modded switch for rear steer. I don't think that would be an issue,would it? I even tried switching crystals and tried my sons bone stock TQ3 and no change.

whether he set it up or not you have to set it up to your radio and receiver other wise it will not function correctly, read and follow th initial program instructions, and yes download the latest version of the software.

everytime the esc is used with a different system it must be set up to that system

Reflection · 09-24-2006, 09:32 PM

Like I said in the P.M. it's been working great for a while now,2 or 3 months. It's just all off a sudden done this. I went from 7 cells changed it to lipo settings,didn't like the lipo and ditched that and went back to 8 sub c cells. I tried the cut off at 4,5,6 volts as the cut off and it never will do anything.

rockwerks · 09-24-2006, 09:34 PM

Quote:

Originally Posted by raptorman57

Like I said in the P.M. it's been working great for a while now,2 or 3 months. It's just all off a sudden done this. I went from 7 cells changed it to lipo settings,didn't like the lipo and ditched that and went back to 8 sub c cells. I tried the cut off at 4,5,6 volts as the cut off and it never will do anything.

turn off the cut off completely. and have you tried other packs besides the one 8cell pack? it might be the pack! What battery charger? what are your other settings?

Reflection · 09-24-2006, 09:40 PM

I've got 7 8 cell packs to choose from. They were all charged up last night. I tried several of them just to be sure but there was no change.

The chargers I'm running are an Integy 16x4 for charging at the house. I've also got a Triton charger I can use but it's 12 volt only. I use both if we go to a get together cuz they'll both work on 12 volts. The Integy is nice if I don't wanna fool with gettin under the hood of the truck and were at home.

rockwerks · 09-24-2006, 09:42 PM

Quote:

Originally Posted by raptorman57

I've got 7 8 cell packs to choose from. They were all charged up last night. I tried several of them just to be sure but there was no change.

The chargers I'm running are an Integy 16x4 for charging at the house. I've also got a Triton charger I can use but it's 12 volt only. I use both if we go to a get together cuz they'll both work on 12 volts. The Integy is nice if I don't wanna fool with gettin under the hood of the truck and were at home.

did anything get wet? on my rig the batteries where always the issue but with your chargers that should not be the case

Reflection · 09-24-2006, 09:45 PM

Quote:

Originally Posted by rockwerks

did anything get wet? on my rig the batteries where always the issue but with your chargers that should not be the case

Not that I'm aware of. I'm gonna try to download the newer version from Pheonix and try to reset everything. Maybe it's just that simple?

rockwerks · 09-24-2006, 09:47 PM

Quote:

Originally Posted by raptorman57

Not that I'm aware of. I'm gonna try to download the newer version from Pheonix and try to reset everything. Maybe it's just that simple?

could be.......what about the batteries in the transmitter? full steength?

Reflection · 09-24-2006, 10:37 PM

Quote:

Originally Posted by rockwerks

could be.......what about the batteries in the transmitter? full steength?

They should be good enough,I just put new in about 4 or 5 runs ago.

I tried downloading the newer version and tried updating my ESC. Nothing so far. I think I'm gonna go to bed now and fool with it tommorrow. I'm pretty tired and I'm probly overlooking something. After work maybe I'll stumble onto something..

JohnRobHolmes · 09-25-2006, 08:44 AM

Sounds like when you flashed the setting the mamba "forgot" the radio settings. You will need to set up the ESC to the radio, just follow the instructions online or in your manual. I have heard with the tq3 you might have to set the throttle trim WAAAY off in one direction for it to work.

rockwerks · 09-25-2006, 08:51 AM

Quote:

Originally Posted by johnrobholmes

Sounds like when you flashed the setting the mamba "forgot" the radio settings. You will need to set up the ESC to the radio, just follow the instructions online or in your manual. I have heard with the tq3 you might have to set the throttle trim WAAAY off in one direction for it to work.

ditto.......that is what I thought, Hey having al those problems had its advantages!

Reflection · 09-25-2006, 04:50 PM

Quote:

Originally Posted by JohnR

The MPJet 2820/7 comes prewired ........ It also has the hard motor-wind wires, that can break if bent at sharp angles.

I've been reading a bit and found this in another thread. Would this cause my trouble? I can't see any breaks in the wires but I can dig into it deeper. I've tried reprograming this dumb thing and nothing is working. The first tep in programing is to plug a fresh battery in,turn the controller on,hold it full foward throttle and turn the ESC on. The book says it should then give a series of beeps.....well,it's not.

Could this be it?

JohnRobHolmes · 09-25-2006, 04:55 PM

You know what? My 2820 has done the same thing a few times. It wont even beep! I acts like a bad wind or something. Im gonna take mine apart and see what I find.

JohnRobHolmes · 09-25-2006, 05:02 PM

Well, that was fast!! The middle motor plug installed from the factory had a cold solder joint and was broken off. Hopefully your trouble is as easy to spot Raptorman.

09-24-2006, 04:37 PM	#1
Reflection TEAM MODERATOR Join Date: May 2004 Location: Tennessee Posts: 10,855	Mamba troubles These Mambas always have a series of beeps when you plug the battery in and then when you turn the controller on. Mines not doing anything. I have full control of the steering,it's working fine but I have no response at all from the throttle. When I plug a fresh battery into the Mamba and turn it on,the lights blink a few times....pause....blink a couple more times and then go solid. When I push the throtle to go foward,the lights go out,push the throtle to go into reverse and the red light flashes. There is still no movement in either direction and steering works fine. I thought maybe the reciever was junk. I took the brand new reciever out of my brothers truck I built for him to try. I know it's fine cuz I've only run it once. I put it in mine and nothing changes. Put it back in my brothers truck and his still works fine. That tells mre the reciever in mine is still good???? It's doing the same thing with either the new reciever or the old one. Any ideas guys???? Thanks, Steve BTW,it's a Mamba Maxx,I'm running....

09-24-2006, 04:40 PM	#2
BENDER 2006 2.2 National Champ Join Date: Dec 2004 Location: Big Bear Lake Posts: 8,328	Sounds like the trouble I was having at the Nationals. People were telling me it was the power switch, but it's been working fine since I got back.

09-24-2006, 04:40 PM	#3
Cole82 I wanna be Dave Join Date: Jul 2005 Location: Cedar Rapids Posts: 2,028	Sounds like your motor is unpluged.

09-24-2006, 09:32 PM	#9
Reflection TEAM MODERATOR Join Date: May 2004 Location: Tennessee Posts: 10,855	Like I said in the P.M. it's been working great for a while now,2 or 3 months. It's just all off a sudden done this. I went from 7 cells changed it to lipo settings,didn't like the lipo and ditched that and went back to 8 sub c cells. I tried the cut off at 4,5,6 volts as the cut off and it never will do anything.

09-24-2006, 09:40 PM	#11
Reflection TEAM MODERATOR Join Date: May 2004 Location: Tennessee Posts: 10,855	I've got 7 8 cell packs to choose from. They were all charged up last night. I tried several of them just to be sure but there was no change. The chargers I'm running are an Integy 16x4 for charging at the house. I've also got a Triton charger I can use but it's 12 volt only. I use both if we go to a get together cuz they'll both work on 12 volts. The Integy is nice if I don't wanna fool with gettin under the hood of the truck and were at home.

09-25-2006, 08:44 AM	#16
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Sounds like when you flashed the setting the mamba "forgot" the radio settings. You will need to set up the ESC to the radio, just follow the instructions online or in your manual. I have heard with the tq3 you might have to set the throttle trim WAAAY off in one direction for it to work.

09-25-2006, 04:55 PM	#19
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	You know what? My 2820 has done the same thing a few times. It wont even beep! I acts like a bad wind or something. Im gonna take mine apart and see what I find.

09-25-2006, 05:02 PM	#20
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Well, that was fast!! The middle motor plug installed from the factory had a cold solder joint and was broken off. Hopefully your trouble is as easy to spot Raptorman.

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