06-26-2011, 09:28 AM | #1 |
I wanna be Dave Join Date: Nov 2008 Location: Chillin in Utardia
Posts: 2,561
| Glitching HITEC 7950Th
set-up Mamba Max Pro set with internal bec at 7.0v also tried 6.0v in a scaler. MMP is set for brushed motor w/ reverse. I have tried 3 RXs thinking that was the deal. The Hitec 7950TH is brand new but I have come to the conclusion that it is the issue. When the rig is turned on and you throttle everything is now fine, but steering all you do is get alot of twitching. Do I just need to run a external castle bec for the 7950th to work properly?? |
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06-26-2011, 10:03 AM | #2 |
Quarry Creeper Join Date: Dec 2008 Location: Australia
Posts: 269
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I'll point my finger at the radio since you didnt mention what radio your using. With the servo under load the stock internal bec on the MMP will shut off but it should still work for bench testing. |
06-26-2011, 12:11 PM | #3 |
I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA
Posts: 8,314
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I believe the CC BEC will fix your issue. When you hit the steering, it drops the RX voltage which causes the glitching. Running a CC BEC direct to the servo should fix this.
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06-26-2011, 03:18 PM | #4 |
I wanna be Dave Join Date: Nov 2008 Location: Chillin in Utardia
Posts: 2,561
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Ya I'm thinking the bec too. I will hook one up after work. The radio is a Dx3r. It's just weird b/c I never had a problem that I can remember like this with any 5995 or 7995s.
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06-26-2011, 09:02 PM | #5 |
Quarry Creeper Join Date: Apr 2011 Location: United States
Posts: 226
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I had the same exact problem and the cc bec fixed it right away
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06-27-2011, 06:11 AM | #6 |
Rock Crawler Join Date: Oct 2010 Location: triad
Posts: 634
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interesting... i had the same problem, had the BEC installed and it was still doing the same thing. So i cut the voltage back to stock on the servo and it's been all good. I just stay away from turning the voltage up.
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06-27-2011, 11:07 PM | #7 |
RCC Addict Join Date: Jul 2009 Location: reelsville
Posts: 1,871
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MMP's BEC is only three amps, 7950 can pull 10 or so. I've had good luck running 5645's on MMP's but 7950's were a no go. Turn the voltage to 8.4 on a CC BEC and you'll be fine. concretejungle, I've had an issue with MMP/7950/CC BEC/Losi 2.4 Rx where it glitched unless the signal and ground were plugged into the Rx, signal only like I've done in other setups glitched. But I've never saw an issue due to voltage, 8.4 volts is stock, it's designed to run direct off 2s lipo. |
06-28-2011, 01:05 AM | #8 | |
RCC Addict Join Date: Mar 2007 Location: Turn the mayflower around.. it will never work
Posts: 1,588
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06-28-2011, 02:36 AM | #9 | |
RCC Addict Join Date: Jul 2009 Location: reelsville
Posts: 1,871
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06-30-2011, 01:16 PM | #10 | |
RCC Addict Join Date: Mar 2007 Location: Turn the mayflower around.. it will never work
Posts: 1,588
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Never know... could be running DSM1 that really doesnt like to be over 6 volts. Just a thought Either or the OP should be posting up all his info and not half of it to get a whole answer | |
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