Few things to check before calling technical support
Step 1. LED on receiver is lit up or not? if Yes, go to Step 2, if not, check battery, power connector, switch port,
Step 2. LED on receiver is flashing or stay solid, if solid, go to Step 3, if flashing, refer to radio instruction manual to bind receiver and transmitter,
Step 3. Are you using S.Bus version TK board, if yes, got to Step 4, if no, connect receiver cable as instructed in PWM mode control scheme and go to PWM1,
Step 4. Do you know how to setup radio transmitter to S.Bus mode? if Yes, go to Step 5, if on, refer to S.Bus setup section on each product page,
Step 5. Did you setup radio transmitter to S.Bus mode properly? if yes go to Step 6. if no, refer to S.Bus setup section on each product page and set up radio transmitter to S.Bus mode,
Step 6. Did you connect CH1 of TK board to S.Bus port on receiver as the following picture? if yes, go to Step 7, if no, connect it as the following picture.
Step 7. Turn off radio transmitter and then turn on again, on transmitter home screen, do you see a question mark in RX battery icon or not as the picture below? if yes, binding is not correct, refer to radio instruction manual to bind again, if no, go to next step.
Step 8. move turret rotation stick, can you hear turret rotation sound? if yes, go to step 8, if not, go to Sound Problem 1
Sound Problem 1. did you connect volume control board CN4 port? if yes, go to Sound Problem 2. Sound Problem 2.
PWM1
Turret
Receiver
Turret
Elevation
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