User manual

18
General operating notices
Opening the transmitter housing
Carefully read the notices below before opening the
transmitter housing. It may be better if unexperienced
users ask a Graupner Service location to take care of
the procedures described below.
The transmitter should only be opened in the follow-
ing situations:
• to convert a neutralized joystick to a non-neu-
tralized joystick or a non-neutralized joystick to a
neutralized joystick.
• to adjust joystick return tension.
Switch off the transmitter before opening its cover.
Open the battery compartment as described on
the previous double-page. If the handrests are fit-
ted, undo the three lower retaining screws of the six
screws in each handrest.
Now undo the five recessed screws in the back of
the transmitter and the battery well using a PH1-size
cross-point screwdriver; see illustration:
Note that the screw-holes are inclined slightly to the
rear, so the cross-point screwdriver should be applied
at the corresponding angle.
Hold the two housing sections together by hand then
turn the transmitter upright over a suitable surface so
these 5 screws can fall out without getting lost. Now
lift up on the backplate carefully and place it to one
side.
Important notices:
• Ensure that the shorter screw – in the battery
well – does not fall inside the transmitter.
• Make no modifications of any kind to the cir-
cuitry as this will void the guarantee as well as
the unit‘s official permit.
This applies in particular to the switches in-
stalled on both sides of the front screen. If you
wish to change the arrangement, contact your
nearest Graupner Service Centre.
• Be sure not to touch the circuit boards with
any metallic objects. Do not touch contacts
with your fingers.
• Never switch the transmitter on when its hou-
sing is open.
When you close the transmitter again, be sure
that …
• … no cables are caught between housing edges
when the backplate is put into position.
• … both housing parts are properly seated with
one another before screwing them together. Never
force the housing sections together.
• Turn the screws down into the existing housing
threads without stripping them out.
• … fit the shorter of the five screws in the battery
compartment again.
• … reconnect the battery.
• … re-install the handrests if you wish.
Lithium battery CR 2032
When you remove the transmitter back panel, you will
see the holder for a CR 2032 battery on the circuit
board below the aerial base, slightly left of centre:
Lithium battery
This battery maintains the date and time settings
during a transmitter power supply outage, for example
when the transmitter’s main battery is being replaced.