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Mr. Helgesen
10-22-2007, 04:16 PM
Hello!

I have trouble setting up my T-rex 450SE with my futaba FP-T8UP radio.
I have a Futaba R137HP (PCM1024) reciever.
The radio has PCM active.
All the channels works great and all the functions seems ok, but when i trottle up,
the rudder servo seems to act with it....
It runs back and fourth when I move the trottle stick.

Could it be that I should have an other x-tall in the reciever?
It is a Futaba TYPE 35-12 (channel 72 and 35.120Mhz) in the reciever and
Futaba TYPE 35-1 (channel 72 ans 35.120Mhz) in the transmitter.

And if you don't already understand, I'm pretty new in this hobby...

jvd
10-22-2007, 09:57 PM
Check to see if revo mix is turned on. It needs to be off. Hope this helps.

Mr. Helgesen
10-23-2007, 03:49 PM
Ok, thanks for that.
I'll try that when I get home.
Set all mixes that include tail to INH then?

But what about the X-tall, anyone know if that's a good mix?

Mr. Helgesen
10-29-2007, 07:29 PM
Hmmmm nope, still have the same problem.
Even if try "reset model" on the radio, I still have the rudder problem.
The channel on the reciever is correct (ch4 for the gyro/rudder and ch5 for the gyro,gain)
When I give 4-5% trottle I'm able to move the rudder servo some but not correctly, otherwise it is dead, no movement.

I have no trim or subtrim on any channels, no mixes exept for the two in the recipient from futaba faq page, i have tried to put an other servo to channel 4 with the very same result.
I have set the swashplate up with this recipient from futaba faq. pages:

For a 120-degree, three-servo CCPM
Channel Order: Aileron 1 = CH1, Aileron 2 = CH6, ane Elevator = Ch2
In PARA. select HELI SWH2
Activate PMIX-1, mix PIT>ELE, +100% +100%, OFST 0%, and SW-A NULL
Activate PMIX-2, mix ELE>PIT, -30% -30%, LINK ON, TRIM ON, OFST 0%, and SW-A NULL
Inhibit HOV-PIThe reciever is brand new.....
I cannot make the tail respond correctly to the rudderstick, any Ideas?

Mr. Helgesen
10-30-2007, 09:05 AM
Could it be some bad potmeter?
Like this: http://helifreaks.com/showthread.php?t=49488
Hmmm
Can I use my Hitec Eclipse 7 along with the futaba reciever?