Troubleshooting Guide - Spektrum DX20 Instruction Manual

EN

TROUBLESHOOTING GUIDE

Problem
Aircraft will not Bind (during
binding) to transmitter
Aircraft will not link (after
binding) to transmitter
The receiver goes into failsafe
mode a short distance away from
the transmitter
Receiver quits
responding during operation
Receiver loses its bind
Receiver slowly blinking at
landing (DSM2 Only)
Flight log registers undesirable
number of fades, losses or holds
or aircraft responds irregularly to
controls
56
Possible Cause
Transmitter too near aircraft during binding
process
Aircraft or transmitter is too close to large metal
object
The bind plug is not installed correctly in the
bind port
Flight battery/Transmitter battery charge is
too low
Transmitter is a DX20 EU version and receiver
is DSM2
Transmitter too near aircraft during linking
process
Aircraft or transmitter is too close to large metal
object
Bind plug left installed in bind port
Aircraft bound to different model memory
(ModelMatch™ radios only)
Flight battery/Transmitter battery charge is
too low
Transmitter may have been bound using different
DSM protocol
Damaged remote receiver or receiver extension.
Check the receiver antenna to be sure it is not
cut or damaged
Main and remote receivers too near each other
Low battery voltage
Loose or damaged wires or connectors between
battery and receiver
Bind button pressed before transmitter powered on
Loss of power to the receiver during flight
System powered on and connected, then
receiver powered off without powering off
transmitter
Poor signal reception
Electronic feedback
Low power
Solution
Move powered transmitter a few feet from
aircraft, disconnect and reconnect flight
battery to aircraft
Move the aircraft or transmitter away from the
large metal object
Install bind plug in bind port and bind the
aircraft to the transmitter
Replace/recharge batteries
The DX20 EU version is not compatible with
DSM2 receivers
Move powered transmitter a few feet from
aircraft, disconnect and reconnect flight
battery to aircraft
Move the aircraft or transmitter away from the
large metal object
Rebind transmitter to the aircraft and remove
the bind plug before cycling power
Select correct model memory on transmitter
Replace/recharge batteries
Bind aircraft to transmitter
Required remote receiver is not connected
Replace or contact Horizon Product Support
Install main and remote receivers at least 2
inches (51mm) apart
Completely recharge flight battery
Do a check of the wires and connection
between battery and receiver. Repair or
replace wires and/or connectors
Rebind by performing binding instructions
Check battery voltage
Power off transmitter when receiver is
powered off
Reposition remote receivers for improved RF
signal path diversity
Check for and stop feedback from servos or
motor systems to the ESC or receiver
Check aircraft power draw and increase
battery power or decrease power demand by
installed systems. Ensure all aircraft batteries
are fully charged. Ensure the installed BEC for
an electric aircraft is adequate for the power
demand
SPEKTRUM DX20 • TRANSMITTER INSTRUCTION MANUAL