Futaba 10J F4109 データシート

①  Call  the  menu  screen  from  the 

home screen by pressing the + key 

for 1 second.

＋

② Select 

    from the menu with the Jog 

key.

③  Open  the  setting  screen  by 

pressing the Jog key.

（1 second）

When normal radiowaves cannot be received due 

to noise and interference, the NOR mode, which 

holds the servo of each channel in its position 

immediately before reception was lost, or F/S (Fail 

Safe) mode, which moves the servo of each channel 

to a preset position, can be selected. When T-FHSS 

Air is selected, the battery fail safe voltage can be 

set.

●When the throttle channel was reversed by servo 

reverse  function,  the  F/S  data  is  also  reversed. 

(Throttle  channel  only)  If  the  receiver  battery 

voltage drops below the set value when the fail 

safe  mode  was  selected,  the  battery  fail  safe 

function moves the servo to a preset position.

●The S-FHSS fail safe voltage is 3.8V.

●Only the throttle channel battery fail safe function 

can be turned on and off.

●When this function was performed reset the battery 

fail safe function by the following method and 

immediately land.

The  battery  fail  safe  function  can  be 

temporarily disabled by moving the throttle stick to the slowest 

side. However, after 30 seconds the battery fail safe function will 

return to the battery fail safe state.

①  Select  the  mode  by 

pressing the + key or 

–  key  at  the  MODE 

item of each channel.

＋

－

or

（Range）

（When F/S mode was selected）

② In the mode selected state, set the F/

S position by holding the stick of that 

channel in the position you want to set 

and press the Jog key for 1 second.

● A confirmation beeping sounds to 

show that the servo position was 

set.

①  Select ACT by pressing the + key or 

– key at the B-F/S item.

＋

－

or

      （Range ／ Default）

● Select the setting item 

with the Jog key.

 For safety, always set the fail safe functions.

●Remember to set the throttle channel fail safe function so that 

the servo moves to the maximum slow side for airplanes and 
to the slow side from the hovering position for helicopters.
Crashing of the model at full high when normal radio waves 
cannot be received due to interference, etc., is very dangerous.

●If the battery fail safe is reset by the throttle stick, it may 

be mistaken for an engine malfunction and will be reset at 
throttle slow and the model will continue to fly. If you have 
any doubts, immediately land.