4, The OSD image cannot be switched and the return switch is not work:
connect with another servo to check whether the switching channel is in good
use.
If it is in good use, then there is some problem with the OSD and the
autopilot itself or the compatibility. The R4047NB20 does not use PWM
time-share output, but the PWM simultaneous output. The high-end OSD and
the autopilot both support PWM signal simultaneous input. The FUTABA
high-end receivers (multi-channel PWM output) use the PWM simultaneous
output. AVR MCU doesn’t have ability to decode simultaneous PWM input.
If it is not in good use, one possibility is that the cable of the be-relayed
receiver is not connected firmly, or that channel of the be-relayed receiver itself
has no signal, or there is something wrong with the remote control settings. If
you cannot find the problem: for example, if you first use the CH5 switch, now
try the CH6 or try CH7 and CH10 to judge whether it is the problem of the
4047NB20 system itself, or put CH4 to CH5 to see whether the CH5 can
transmit normally.
Common Precautions
1, Before using the car antenna, check whether it is in conflict with the car
lock in case the door cannot be opened.
2, The transmitter's power is high, so it is likely to cause nearby electronic
system out of order. Please pay attention when you use it.
3, When you use the transmitter, try to hang it in the car or in a high
position. You'd better not hold it with your hand. If you have to, please make
sure to switch it to small power mode.
4, Check whether the THR channel's failsafe is normal and whether the
be-relayed receiver is set with the proper failsafe.
5, The failsafe of R6203SB receiver will work when the 12FG is off. The
failsafe of the R4047NB20 will take effect when the T4047NB20 is shut down,
or in the IDLE mode or the signal is very weak.
6, When the T4047NB20 is in use, please do not cut the power. If necessary,
turn off the transmitter by using the IDLE control signal.
7, Do not connect a servo on the be-relayed receiver. The connected servo
will damage the signal acquisition system by overheat.
