4ghz troubleshooting guide – Spektrum SPMAR635 User Manual
Page 22

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22
2.4GHz Troubleshooting Guide
AS3X
Problem
Possible Cause
Solution
Oscillation
Flying over
recommended
airspeed in 3D mode
Switch to GF mode
Damaged propeller
Replace propeller
Imbalanced propeller
Balance the propeller
Motor vibration
Replace parts or correctly align all
parts and tighten fasteners as needed
Loose receiver
Align and secure receiver in fuselage
Loose aircraft controls
Tighten or otherwise secure parts
(servo, arm, linkage, horn and control
surface)
Flight condition
variations.
Adjust gain to current flight conditions
(wind, updrafts, local conditions
(altitude above sea level, humidity,
temperature, etc.))
Worn parts
Adjust gain to compensate for parts
wear or replace worn parts (especially
propeller, pivot points or servo).
Irregular servo rotation
Replace servo.
Incorrect transmitter
type (computerized
or non-computerized)
assigned in receiver
Assign correct transmitter type in the
receiver.
If oscillation persists
Decrease gain.
Trim change
when flight
mode is
switched
Trim is not at neutral
If you adjust trim more than 8 clicks,
adjust the clevis to remove trim.
Sub-trim is not at
neutral
No Sub-trim is allowed. Adjust the
servo arm or the clevis.
Incorrect
response to the
AS3X Control
Direction Test.
Incorrect direction
settings in the receiver,
which can cause a
crash
DO NOT fly. Correct the direction
settings (refer to the receiver manual),
then fly.