Futaba 10J F4109 データシート

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 A range check must be performed before the first flight of a new model.  It is not necessary to do 

a range check before every flight (but is not a bad idea to perform a range check before the first 

flight of each day).  A range check is the final opportunity to reveal any radio malfunctions, and to 

be certain the system has adequate operational range.
We have installed a special “Power Down Mode” in the T10J in order to perform an operational 

ground range check.  During this mode, the RF power is reduced in order to test the operational 

range of the T10J.  

*Control is impossible and your 

model crashes. 

Select  the  "ON"  and 

press the Jog key. 

P o w e r   i s   u s u a l l y 

outputted from power 

mode.

Select  the  "OFF"  and 

press the Jog key.

A screen opens without 

o u t p u t t i n g   p o w e r . 

The  receiver  does  not 

operate.

2) With the “Power Down Mode” activated, walk away from the model while simultaneously operating the controls.  

Have an assistant stand by the model and signal what the controls are doing to confirm that they operate correctly.  You 
should be able to walk approximately 30-50 paces from the model without losing control.
3) If everything operates correctly, return to the model.  Push END KEY and complete power down mode. Set the 

transmitter in a safe yet accessible location so it will be within reach after starting the engine.  Be certain the throttle 

stick is all the way down, and then start the engine.  Perform another range check with your assistant holding the model 

and the engine running at various speeds.  

If the servos jitter or move inadvertently, there may be a problem.  Do NOT fly the aircraft!  Look for loose servo 
connections or binding pushrods.  Also be certain that the battery has been fully charged.
4) NEVER start flying when the “Power Down Mode” is active.
Servo test operation at the time of Power Down Mode:

During Power Down mode, you can use automatic servo testing to check the range of a specified servo (it moves to 
right and left slowly). 
1) A "SERVO" is chosen from a menu.

2) JOG KEY is moved to a side and 2 pages is called. Next, JOG KEY is moved down and CH is displayed.

3) CH of the servo which wants to operate is chosen. Then, the + KEY is pressed and it is made ACT.
The servo selected during Power Down Mode operates alone, allowing you to check its operation.
It is during Power Down Mode starting, and if "SERVO TEST" is turned ON, it will move. 
*In the Power Down Mode, the throttle servo does not operate.
*Helicopter mode, condition is fixed to NOR.

1) To activate the “Power Down Mode” please hold 

down the JOG KEY and then turn the transmitter switch 

on. A power mode screen is displayed.  Press the JOG 
KEY

 to select the Power Down function. When this 

mode is active the red LED on the lighting from of 

the transmitter will provide users with an audible and 

visual indication that the transmitter is in the “Power 

Down Mode”. Audibly, the transmitter will beep one 

time every three seconds. Visually, the LCD screen will 

display “POWER DOWN MODE”.  The words “POWER 

DOWN MODE” will blink as an additional reminder 
that the transmitter is in the “Power Down Mode”.