Spektrum SRS4220 Instruction Manual page 9

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Problem
The system will
not connect
The receiver
goes into fail-
safe mode a
short distance
away from the
transmitter
The receiver
stops respond-
ing during
operation
The front wheels
oscillate
The front wheels
turn the wrong
way when the
car slides/
rotates
The throttle
does not reduce
when the car
slides/rotates
Possible Cause
Your transmitter and
receiver are too close
together
You are around metal
objects
The receiver is not
bound to the active
model memory
Your transmitter was
accidentally put into
bind mode and is no
longer bound to your
receiver
Check the receiver
antenna to be
sure it is not cut
or damaged
Inadequate battery
voltage
Loose or damaged
wires or connectors
between battery and
receiver
The steering gain
is set too high
The steering channel
was reversed after
calibration
The throttle channel
was reversed after
calibration
Solution
Move transmitter 1 to 3 meters
from receiver
Move to an area with less metal
Check model selected and
ensure you are bound to that
model
Rebind your transmitter
and receiver
Replace the receiver or contact
Horizon Product Support
Make sure your receiver antenna
is in an antenna tube and is
above the vehicle
Charge or replace the receiver
batteries. Spektrum receivers
require at least 3.5V to operate
(We recommend using a 6V
receiver pack). An inadequate
power supply can allow voltage
to momentarily drop below 3.5V
and cause the receiver to brown
out and reconnect
Check the wires and
connection between the battery
and receiver. Repair or replace
wires and/or connectors
Turn down the steering gain
Rebind and calibrate
Rebind and calibrate
en
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