Spektrum AR9310 Guide De L'utilisateur page 9

EN
interpreting this as unfriendly noise. Moving the system away from metal
objects or moving the transmitter away from the receiver and powering
the system up again will cause a connection to occur. This only happens
during the initial connection. Once connected the system is locked, and
should a loss of signal occur (failsafe), the system connects immediately
(4ms) when signal is regained.
3. Q: I've heard that the DSM system is less tolerant of low voltage. Is
this correct?
A: All DSM receivers have an operational voltage range of 3.5 to 9.6 volts.
With most systems this is not a problem as in fact most servos cease to
operate at around 3.8 volts. When using multiple highcurrent draw servos
with a single or inadequate battery/power source, heavy momentary
loads can cause the voltage to dip below this 3.5-volt threshold causing
the entire system (servos and receiver) to brown out. When the voltage
drops below the low voltage threshold (3.5 volts), the DSM receiver must
reboot (go through the start-up process of scanning the band and finding
the transmitter) and this can take several seconds.
4. Q: Sometimes my receiver loses its bind and won't connect requiring
rebinding. What happens if the bind is lost in flight?
A: The receiver will never lose its bind unless it's instructed to. It's important to
understand that during the binding process the receiver not only learns the
GUID (code) of the transmitter but the transmitter learns and stores the type
of receiver that it's bound to. If the transmitter is put into bind mode, the
transmitter looks for the binding protocol signal from a receiver. If no signal
is present, the transmitter no longer has the correct information to connect
to a specific receiver and in essence the transmitter has been "unbound"
from the receiver. We've had several DX7 customers that use transmitter
stands or trays that unknowingly depress the bind button and the system
is then turned on losing the necessary information to allow the connection
to take place. We've also had DX7 customers that didn't fully understand
the range test process and pushed the bind button before turning on the
transmitter also causing the system to "lose its bind."
If the system fails to connect, one of the following has occurred:
• The transmitter is near conductive material (transmitter case, truck bed,
etc.) and the reflected 2.4GHz energy is preventing the system from
connecting. (See 2nd question above)
• The transmitter was put into bind mode knowingly (or unknowlingly)
causing the transmitter to no longer recognize the receiver.
16
2.4GHz Troubleshooting Guide
Problem Possible Cause
User did not lower
throttle trim and throttle
stick prior to initializing
the aircraft
Aircraft will not
Throttle channel is
"throttle up"but
reversed. Futaba
all other controls
transmitters (equipped
seem to function
with Spektrum modules)
may require you to
reverse the throttle
channel
User did not wait at
least 5 seconds after
powering the transmitter
prior to connecting the
flight battery to the
aircraft
LED on aircraft
remains flashing
and cannot be User bound the aircraft
controlled by
to a different transmitter
transmitter
Transmitter was too
close to aircraft during
the initialization process
Controls appear
User did not initially set
to be reversed
after binding up transmitter prior to
to a different
binding to the aircraft
transmitter
Aircraft does
User may have
not function
accidentally plugged the
after connecting
flight battery and
flight battery in with the
aircraft smells
wrong polarity
burnt
Solution
Lower throttle stick and
throttle trim to their lowest
settings
Reverse throttle channel
on specific transmitter if
applicable
Unplug, then reconnect
flight battery
Rebind aircraft to your
desired compatible
transmitter
Move transmitter
(powered on) a few feet
from the aircraft prior to
reconnecting the flight
battery
See the "Binding" section of
this manual
Replace the receiver board
and ensure the RED polarity
marks are facing the same
direction when connecting
the flight battery to the
receiver board
17
EN