frieshoo

My Feedback: (20)

Danny,

I have a new 8103 (bought from Chief Aircraft 2 weeks ago). It's PPM channel 45. Yesterday, It went nuts.... (Fail Safe Lockout, I think)... I'm using Hitec servos, and a R700 rx (that came with the TX)... I powered up the 8103, with the antenna down, I leaned forward and turned my RX battery on...... I saw the servos 'chatter', and then my rudder trim went full left, my aileron trim went full left, my elevator trim went full up (deflecting the the elevator down).... the trims were locked, and would not responed.... I'm not sure of the position of the throttle trim... I think it cut the throttle... Any Ideas? Should I send it to Horizon? I'm a little ticked, because now I have to re-program my old 652, and flip a couple elevator servos!

thanks in advance.
Dennis

dsnyder

With PPM you don't have a fail safe or lockout. Have you checked the modulation selection in the 8103? If you are using a PPM receiver you need to set the 8103 to PPM modulation.

frieshoo

My Feedback: (20)

The TX is definitly set to PPM.... so it's not failsafe.... just now, when I powered the TX up... all three digital trims... slowly moved (Rudder/Aileron to the Left) (Elevator up) without me touching the trim tabs.... they seemed locked... pressing the trim tabs (right/left or up/down)has zero effect... I only have 2 models on this TX... when I go into model select and select another model...say model 3... the trims will slowly move as I described above.... any thoughts?

frieshoo

My Feedback: (20)

Basically, the trims are not working...

ahhhh..... I just noticed the module on the back of the transmitter is labeled "PCM" Pulse Code Modulation FM transmitter module.... I ordered a PPM system (I don't have PCM RX's)...... Do I have the wrong module?

frieshoo

My Feedback: (20)

Some more information...

I can go into the "Monitor" menu option.... I can press select and bring up the Monitor Trim screen. Here is what it looks like:

[MONIT]
TRIM

AILE ELEV RUDD
L100 D100 L100


The trim tabs still do not respond when pressed.

dsnyder

It does sound like the system needs to come in for a check up. I'm not sure what may be wrong with it without seeing it here.

http://horizon.hobbyshopnow.com/support/