CC BEC causing interference or damaged?

[weru]

When I bought my blade 400, the pitch servo was twitchinl ALL the time. I called HH, they told me the servo was bad and sent me a new one. I installed it and the twitching was gone.
Now I installed a Castle Creations Bec and I have twitching all over the place. If I go back to the internal Bec from the esc, all is well.:arggg:

Please help me, do you think the CC BEC is causing interference, or could it be bad?
any suggestions?
Thanks

[whoodie]

Try removing the signal wire from the CC BEC. It should not be needed for normal operation.

I have one installed on my rock crawler and the CC rep recommends this to help avoid glitching. Please do a control check before flying

[weru]

I called CC and the rep told me the same thing. However, it did not solve my problem.

[whoodie]

I wonder if the servo will twitch if it were plugged into another channel? Did you disconnect the power wire from the ESC? Having 2 BECs, one from the ESC and an external, is known to cause issues.

[weru]

Yes I disconnected the red wire from the esc. And all servos are buzzing at any position non stop. But only with the CC BEC. No problems with the internal ESC/BEC.

[whoodie]

I don't know what else to tell you. The CC BEC outputs 5.1V, the ESC BEC may output at a lower voltage and this might be causing the servo issues. I have heard that the stock servos are junk anyway. I am going to be replacing mine fairly soon.

[weru]

I tested the voltage on the ESC/BEC and CC BEC and they were both at 5.04V. So I believe they both output 5.1V and there is a loss in the wire/terminals.
I know, I am running out of options.
Whoodie, you said, you would replace the servos. Which are your considering? Would you need to put an external BEC?

I was also thinking to leave the stock cyclic and replace the tail with 9257 (digital) Ideally I would want to replace the cyclic also (digital maybe?) there are new futabas that should be tried.

[whoodie]

A lot of people like the hitec 56mg for the cyclic. I would like to go that route and get a digi for the tail as well as a 401 gyro. I am going to run a CC BEC when I switch.

[weru]

Isn't the HS56 low on torque for a blade 400?

[whoodie]

Sorry, Dyslexia kicking in. I meant HS65MG.

[weru]

I called CC again, and they are sending me a new CC BEC. It looks like the one I have is damaged. Let's hope that fixes the problem because I want to set up a BEC and be able to upgrade the servos.

[eugenefelisco]

I have a ccbec also. Before I was using hs-55 and stock gyro/servo in the tail. Now I have ds285 in cyclics and csm420e and 9650 on the tail. Tomorrow will be test flight and I'm excited.

I didn't have any problems with my ccbec. The only reason I use it is in the first set-up the esc is quite hot and I'm just hovering. On the second set-up it might burn down coz they say running digital increases amp and heat of course. Now the esc barely warm and still running 5.1v in the ccbec coz I don't have the cable link yet.

Given the chance I will run 6volts in my 400 thats just my 2 cents.

[weru]

Sounds good, let us know how the test flight goes and what you think could improve!