Reset To Factory Default Settings - Multiplex RX-7 SYNTH DS M-PCM Instrucciones

Fail-Safe mode terminates as soon as the receiver picks up
error-free signals again.
The Fail-Safe function can be activated or disabled for each
servo separately using the MULTImate or the RX-SYNTH Data-
Manager (PC application). Example: throttle to idle / off, all other
servos = Hold.
Testing the Fail-Safe settings
Move the transmitter sticks to positions other than the selected
Fail-Safe settings, then switch the transmitter OFF. When the
Hold period has elapsed, the servos should run to the Fail-Safe
settings you previously defined.
The Fail-Safe settings must always be checked and adjusted /
updated if necessary. For example, if you install the receiver in a
different model, or if you accidentally misuse the receiver.
! Checking the Fail-Safe function:
When you are checking the Fail-Safe function with the trans-
mitter switched off, be sure to operate the receiver only briefly,
as there is a danger that the motor could burst into life - injury
hazard!

9.5 Reset to factory default settings

It is possible to reset the receiver settings to the factory default
values. If you do this, all your settings (e.g. RF channel, Fail-
Safe values) will be lost.
Hold the SET button pressed in for at least ten seconds. The
(STATUS) LED helps you with the timing: when you press the
button, the (STATUS) LED goes out; it then comes on again
after two seconds, and goes out again after ten seconds.
Parameter Set value after
Reset
RF channel none (automatic
channel search after
switching on)
Low voltage 4.0 V
Hold duration 0.9 seconds
Fail-Safe duration 16 seconds
Fail-Safe release none
Fail-Safe settings neutral (UNI)
9.6 Error counter
The receiver features three error counters: for low-voltage, RSSI
(field strength) and PCM errors.
RX-7-SYNTH M-PCM, RX-7-SYNTH DS M-PCM and RX-9-SYNTH
DS M-PCM compact:
The sum of all errors is indicated by the (STATUS) LED.
RX-9-SYNTH DS M-PCM and RX-12-SYNTH DS M-PCM:
These two receiver types are equipped with a separate LED for
each type of error.
If errors are indicated, they can be stored once the model has
landed by pressing the SET button (
( 12.).
In our experience errors are recorded after virtually every flight.
Generally speaking they are not noticed by the modeller, but are
picked up by the highly sensitive glitch counter. After a few
flights and regular analysis of the error counter you will have
MULTIPLEX Modellsport GmbH & Co.KG • Westliche Gewerbestraße 1 • D-75015 Bretten (Gölshausen) • www.multiplex-rc.de
Operating Instructions RX-7-SYNTH M-PCM /
RX-7/9/12-SYNTH DS M-PCM / RX-9-SYNTH DS M-PCM compact receivers
Values can be
altered using
MULTImate &
RX-SYNTH
DataManager
yes
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servo by servo
servo by servo
9.2) and read out later
sufficient experience to assess its findings, helping you to detect
changes in good time, and to recognise indications of possible
causes of interference. For example, glitches could be due to
problems in the power supply, by interference caused by the
power supply, metal-to-metal noise, etc.
1. Operating voltage errors (BATT-ERR)
Examples: flat or faulty battery, inadequate cable cross-
section, etc.
The counter records voltage collapses below the set thres-
hold of 4.0 V (this value can be altered using the MULTImate
or a PC 12.). If battery voltage remains below the thres-
hold, RF errors and PCM errors are not counted, as it is
highly likely that they are caused by the low voltage itself.
2. RF field strength errors (RSSI-ERR)
Examples: field strength "black spots" at the flying site, flying
the model at the limit of range, etc.
The counter records field strength collapses below a pre-set
minimum. If the field strength remains below the minimum,
PCM errors are not counted, as it is highly likely that they are
caused by the field strength collapse itself.
3. Signal (PCM) errors (PCM-ERR)
Examples: ignition interference, static discharge, etc.
The counter records interference to the PCM packet.
! Protracted voltage collapses to below 3.0 V will force the
receiver to re-start; this causes the recorded values for the three
error counters to be lost.
! Errors tend to occur immediately after the receiving system is
switched on. For this reason the error counters only starts
recording data five seconds after the receiver is switched on.
! If you press the SET button in order to store the error count,
the data is maintained until the next time you store error data.
10. R D
ECEIVER IVERSITY
Receiver Diversity operations are possible with MULTIPLEX M-PCM
receivers (except RX-7-SYNTH M-PCM). For this you need any
two M-PCM receivers on the same frequency band, which are
inter-connected using the Diversity lead (# 8 5070). Both
receivers receive and assess the signals. Orientating the two
receiver aerials in different directions significantly improves re-
ception performance, since this arrangement minimises direc-
tional aerial effects. This means that the receiver has a good
"view" of the transmitter regardless of the model's attitude.
Diversity mode therefore provides an additional safety margin.
Receiver diversity is particularly recommended if you fly large-
scale model aircraft. For details please refer to the operating in-
structions supplied with the Diversity lead for RX-SYNTH M-PCM
receivers (# 8 5070).
11. D O
IAGNOSIS PERATION
Diagnosis operation enables you to carry out adjustments to
your model without the transmitter generating an RF signal. The
transmitter does not require an RF module for this.
A MULTIPLEX switch harness with charge socket is used to
inter-connect the transmitter and receiver using the Diagnosis
lead (# 8 5105). The transmitter must be set to M-PCM modu-
lation.
When the Diagnosis lead is disconnected, neither the transmitter
nor the receiver switch back to normal RF operation.
For this reason: first switch the receiver OFF, then the trans-
mitter OFF, then disconnect the Diagnosis lead.
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