User manual

224
Program description - Teacher/pupil
the teacher transmitter. Afterwards, assign the operat-
ing elements appropriately.
Important:
• If you should forget to assign a transmitter
control on the pupil side, then the affected ser-
vo or servos will remain in the center position
when the transfer is made to the pupil trans-
mitter.
• 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 pu-
pil transmitter’s On/Off switch in the “OFF” po-
sition: 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 sys-
tem socket, as it is not suitable for this appli-
cation. 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 “ Teacher” to “
Pupil”.
• 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 warn-
ing notice …
No
pupil
signal
… and the left side of the screen display for the
»Teacher/pupil« menu will change to show “-Pu-
pil”. In this case, all control functions are retained
by the teacher transmitter automatically, regard-
less of switch position: this ensures the model is
always under control.
Possible faults:
• Pupil transmitter not ready
• Interface in pupil transmitter not correctly con-
nected in place of the RF module
• Cables connected wrongly: see right for cable con-
nections
• 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 trans-
mitter with DSC socket (e. g. mx-12 …
mc-32 HoTT) or a transmitter retrofit-
ted with an optional DSC module, order no.
3290.24) to a Graupner pupil transmitter
with an opto-electronic system pupil sock-
et – identifiable by the mark “S” on the side
of the three-pole TRS jack.
3290.8 trainer cable for connecting a pupil transmit-
ter with DSC socket (e. g. mx-12 …
mc-
32 HoTT or a transmitter retrofitted with an
optional DSC module, order no. 3290.24) to
a Graupner teacher transmitter with an op-
to-electronic system teacher socket – iden-
tifiable 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 trans-
mitter handbook, in the Graupner RC main cata-
logue or in Internet at www.graupner.de.