HELP!!!! FX-Pro

[Toonz]

i've bought a FX-Pro, installed and facing a problem now.

at step 10, point No.3 says:

"Press and hold the MODE button on the speed control for 3 seconds. All LEDs will blink red times with 3 chimes. The speed control will make a pulsing chime as it looks for a neutral signal–you do not need to do anything yet."

my fx-pro has been remaining at that pulsing chime (LED6) for more than 10 minutes and it doesn't seem to get to point 4 that says:

"When NEUTRAL position is found and recorded, LED4 will flash and a confirmation chime will sound"

what happen? how long do i have to wait for the pulsing chime at point 3 before it gets to point 4?

my radio setting was set as per intructions and connection was done according to the diagrams. battery is fully charged.

please help!
thanks!