Operating Instructions receiver
RX-6-SYNTH
light
MULTIPLEX Modellsport GmbH & Co.KG • Neuer Weg 2 • D-75223 Niefern-Öschelbronn • www.multiplex-rc.de
Page
2/3
Ins
tru
ct
ions
RX
-6
-SY
N
T
H l
ig
ht
#
82
59
01
(07
-0
2-
21
/MW
)
•
Error
s
and omission
s
ex
ce
pted!
•
M
U
LT
IPL
E
X
Extreme settings at the transmitter (e.g. servo travels, mixer
settings or Dual Rates) may cause the Channel 2 servo signal
(confirmation signal) to be insufficient to confirm the selected RF
channel (see Step 3: Setting the RF channel). In this case you
should return these settings to the default values, and repeat the
process starting from Step 1.
No signals are passed to the servo outputs while the RF channel
search is in progress, i.e. the servos do not move, and are “soft”;
if the signal is absent, any modern electronic speed controller will
keep the motor switched OFF. Nevertheless it makes sense to
secure the model and keep a safe distance away.
5.2 Automatic servo channel count detect
When you are setting the RF channel, the receiver also picks up
the transmitter’s transmission format, i.e. how many servo
channels are being transmitted (e.g. PPM 5, PPM 9) and the
pulse rate, and stores these (transmitter signature).
Every time it is switched on, the receiver checks the transmitter
signature and compares it with the stored values. If they do not
coincide, the receiver does not switch itself on:
LED Code 1
LED ON
!
Note
Every time you change the servo channel count or the
transmitter’s operating mode (or if you wish to use a differ-
ent transmitter), you must repeat the receiver’s RF channel
selection procedure
(
Î
5.1
)
.
The servo channel count or the transmitter’s operating mode can
be changed in different ways, e.g. with the MULTIPLEX ROYAL
evo by changing the servo assignment (e.g. PPM 6, 7, 8 or 9) or
with PROFI mc 3000 / 4000 series transmitters by changing the
operating mode, e.g. PPM 7, PPM 9.
6. O
VERVIEW OF THE
LED
CODES
LED Code 0
LED OFF
Operating voltage too low
LED Code 1
LED ON
When setting the RF channel: RF channel search concluded.
In regular operation: no signal or no valid signal picked up
LED Code 2
1,6 sec
RF channel search in progress
LED Code 3
1,6 sec
Receiver is ready for use
1,6 sec
LED Code 4
Confirmation signal when RF signal setting is complete
7. R
ECEIVER CONNECTIONS
/
SOCKETS
The
RX-6-SYNTH light
receiver is fitted with the universal UNI
connector system, which is compatible with the connectors used
by most radio control system manufacturers (HiTEC,
robbe/Futaba, Graupner/JR, …).
Socket B:
Receiver battery socket
Sockets 1, 2, 3 ... 6:
Servo sockets, channels 1, 2, 3 ... 6
!
When connecting the receiver battery, servos, speed
controller etc., take care to maintain correct polarity, es-
pecially when using products made by other manufactur-
ers, i.e. plug the right way round, pin assignment correct.
(see symbol on the receiver
).
8. P
OWER
S
UPPLY
The
RX-6-SYNTH light
receiver works with a broad voltage
range of 3.6 … 7.5 V (
Æ
4 – 5 cell NiXX receiver battery).
The receiver battery can be connected to socket B, or to any
vacant servo socket 1 … 6.
!
Note
When it is switched on, the receiver checks the operating vol-
tage, which must be at least 4.5 V. If this is not the case, the
receiver does not switch itself on.
LED Code 0
LED OFF
!
Check and observe the maximum permissible voltage for
the units connected to the receiver (servos etc.).
Please note that many servos are only approved for use with four
NiXX cells (4.8 V).
!
Note
A power supply in good condition, and of a capacity to suit the
application, is fundamentally essential to the reliable function of
the RC system, and therefore to the safe operation of the model:
•
Use only high-quality, well maintained receiver batteries with
properly balanced and fully charged cells. The pack must be
of adequate capacity.
•
Ensure that cable conductors are of adequate cross-section,
and keep all wiring as short as possible. Do not fit extra con-
nectors unless absolutely unavoidable.
•
Use high-quality switch harnesses exclusively.
•
Voltage collapses below 3.6 V can cause your RC system to
malfunction. These can occur due to a receiver battery which
is flat, too weak or defective, or cables with inadequate con-
ductor cross-section, poor connector contact or an over-
loaded or faulty BEC system.
9. I
NSTALLATION
N
OTES
•
Receivers contain components which are vulnerable to vibra-
tion. Protect the unit from vibration by packing it loosely in
foam; this is particularly important in any model powered by
an internal combustion engine.
•
When installing the receiver, keep it as far as possible (at
least 150 mm) from electric motors and other electronic com-
ponents such as electric motor speed controllers, flight batter-
ies, etc.
•
Keep high-current cables, e.g. those attached to the speed
controller, motor and flight battery, as short as possible.
•
Conventional electric motors (not brushless types) must be
properly suppressed, e.g. using the suppressor set # 8 5020.
•
If you have to use servo extension leads longer than 50 cm,
use separation filters, e.g. # 8 5035.
•
In many cases, receiver interference caused by speed con-
trollers can be reduced by fitting a ferrite ring (e.g. # 8 5035);
the receiver lead attached to the controller should be looped
six or seven times through the ferrite ring as close to the con-
troller as possible.
•
Do not alter the length of the aerial. Wherever possible, route
the aerial directly out of the model; do not coil it up. Do not
deploy the aerial parallel to servo leads, high-current cables
or electrically conductive components (e.g. metal pushrods).
Do not deploy the aerial inside or on any model component
which is clad or reinforced with a conductive material such as
carbon fibre, metal-loaded paint etc. (shielding effect).
