Graupner GmbH & Co. KG MC-20 用户手册

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页码 324
212 Detail program description - Teacher/pupil
dual axis sticks (1 … 4), access the »Control adjust«
menu in the pupil transmitter and assign those inputs
which correspond to enabled function inputs 5 … 
12
 as shown in the »Teacher/pupil« menu of the 
teacher transmitter. Afterwards, assign the operating 
elements appropriately.
Important:
If you should forget to assign a transmitter 
control on the pupil side, then the affected 
servo or servos will remain in the center 
position when the transfer is made to the pupil 
transmitter.
The pupil transmitter must always be operated 
in PPM mode, regardless of the RF connection 
type used between the teacher transmitter and 
the model.
If the transmitter is connected using a DSC 
socket on the pupil side, ALWAYS leave the 
pupil transmitter's On/Off switch in the "
OFF"
position: this is the only way to guarantee 
that no RF signal is sent from the pupil 
transmitter's transmitter module, even after the 
DSC lead has been plugged in.
Trainer mode operations
Both transmitters are connected to one another 
using a suitable lead (see summary on next page): 
The plug marked "M" (master) must be inserted 
into the socket on the teacher transmitter, and the 
plug marked "S" (student) into the pupil transmitter's 
socket. (Note that not all leads may have such "M" 
and "S" labeling.) 
Important notices:
Check that the model aircraft is operational 
and check that all functions issue the correct 
commands BEFORE setting up trainer mode.
The ends of the trainer lead, usually marked 
as either "S" or "M", terminate in a three-pole 
TRS jack. Do not insert these jacks into a DSC 
system socket, as it is not suitable for this 
application. The DSC socket is exclusively 
designed for cables with 2-pole TRS jacks.
Checking functionality
Activate the assigned trainer mode switch:
The trainer mode system is working properly if the 
display now changes from "
¾ L" to "¾ S".
However, if the 
WARNING
 LED at the right, next 
to the transmitter's On/Off switch, blinks and 
an acoustic signal sounds off at the same time, 
then the connection between pupil and teacher 
transmitters is faulty. 
The basic display also displays the following 
warning notice …
No
    pupil
        signal
… and the left side of the screen display for the 
»Teacher/pupil« menu will change to show 
"-Pupil". In this case, all control functions are 
retained by the teacher transmitter automatically, 
regardless of switch position: this ensures the 
model is always under control.
Possible faults:
Pupil transmitter not ready
Interface in pupil transmitter not correctly 
connected in place of the RF module
Cables connected wrongly: see right for cable 
connections
Pupil transmitter not switched over to PPM (10, 
16, 18, 24) mode
Other possible faults:
Teacher transmitter not properly "bound" to HoTT 
receiver in training model
Trainer cables
4179.1  for trainer operation between any two 
Graupner transmitters equipped with DSC 
sockets – distinguished by a two-pole TRS 
jack at both ends.
3290.7  trainer cable for connecting a teacher 
transmitter with DSC socket (e.g. 
mc-20
HoTT) or a transmitter retrofi tted with an 
optional DSC module, order no. 3290.24) to 
Graupner pupil transmitter with an opto-
electronic system pupil socket – identifi able 
by the mark "S" on the side of the three-
pole TRS jack.
3290.8  trainer cable for connecting a pupil 
transmitter with DSC socket (e.g. 
mc-20
HoTT) or a transmitter retrofi tted with an 
optional DSC module, order no. 3290.24)
to a Graupner teacher transmitter with an 
opto-electronic system teacher socket – 
identifi able by the mark "M" on the side of 
the three-pole TRS jack.
Further details about the cables and modules 
mentioned in this section for teacher and pupil 
transmitters can be found in the respective transmitter 
handbook, in the Graupner RC main catalog or in 
Internet at www.graupner.de.