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User Manual
V1.0 Jun, 2021 Revision
Thank you for purchasing our products. A3 Pro V2 is a high-performance and functional 6-axis gyro
and stabilizer designed for R/C airplanes. In order for you to make the best use of your gyro and to
fly safely, please read this instruction manual carefully and set up the device as described below.
IMPORTANT NOTES
Radio controlled (R/C) models are not toys! The propellers rotate at high speed and pose
potential risk. They may cause severe injury due to improper usage. It is necessary to observe
common safety rules for R/C models and the local law. Read the following instructions
thoroughly before the first use of your gyros and setup the gyro carefully according to this
manual. We also recommend that you seek the assistance of an experienced pilot before
attempting to fly with our gyros for the first time.
After power on, A3 Pro V2 needs to perform an accurate gyroscope calibration, keep the
airplane stationary after power on and wait while the LED flashes blue. The LED will stay solid
blue if a slight movement is detected and the calibration will not start until you stop moving the
airplane, however, making the airplane level is NOT required during the initialization.
A stick centering is also required following the gyroscope calibration. Always put all the sticks
center (the throttle stick in the lowest position) before power on the airplane, and do not move
the sticks until the initialization is done.
Make sure to check the gyro direction of Aileron, Elevator and Rudder channels after installation
and always perform a test of them before each flight. An opposite reaction of the gyro could
lead to losing control or even crash!
It is recommended to use the supplied 3300uF/16V capacitor to get a more stable and secure
working voltage for the gyro. The capacitor can be plugged onto any one of the free connectors
of the gyro or receiver.
