The Fuzzy Logic CPU operates on 4.8
to 6.0 volts DC from your receiver battery pack.
Warning- If receiver is dead or removed
or car battery is switched off, THE FAIL SAFE UNIT WILL
NOT FUNCTION, nor provide any RC control protection.
1) Connect the unit between your receiver and throttle
servo. But before applying power double-check wiring
color code to ensure correct polarity.
2) Locate unit in battery box or holder. It is best
to keep dirt or water away from unit. Also, secure unit
so it is not loose or allowed to wiggle freely on the
3) To setup the unit, turn on the radio transmitter
and car receiver. You should see the throttle and steering
servo's operate normally. Also, the fail safe 'green'
light will be on. If red, you may have a radio problem.
4) With radio transmitter on, push throttle trigger
to full brake and hold, NOT
full throttle. Then, with a pin, push the Set Position
button on the fail safe unit. You should hear a 'one-click'
sound and a green light indication.
The unit is now set. To check, turn off radio transmitter.
Note the throttle servo will immediately move to the
brake position set, in this case FULL. Also, a red light
will be on. Solid Red means dangerous operation; Flashing
Red means low receiver battery. With either indication,
stop operation until interference or battery recharge
IF YOU HAVE ANY QUESTIONS OR PROBLEMS, CALL
OFNA TECHNICAL SUPPORT.