Inserting Or Replacing Batteries; Connection Of An External Mains Adapter - MC Crypt MC-37A Mode D'emploi

8. Inserting or Replacing Batteries

If you want to use batteries, disconnect any connected mains adapter from the keyboard, pull the low-voltage plug from the socket
(41) at the rear of the keyboard.
• Open the battery compartment at the bottom of the keyboard and take off the cover of the battery compartment.
• Then insert 6 batteries type Baby/C into the battery compartment. Observe the figure next to the battery compartment lid at the bottom of the
keyboard.
• Insert the battery compartment lid so that it catches.
Rechargeable batteries can be used (also see chapter 5), but their lower voltage and capacity will reduce the maximum paying
duration and may lead to distortion at higher volumes.
Therefore, we recommend either using high-quality alkaline batteries or an external power unit (neither included in the delivery, can
be ordered separately).
• The batteries must be replaced when the display contrast is very low or the keyboard can no longer be switched on.
If the keyboard is not to be used for an extended period of time (e.g. for storage), remove the batteries from the battery compartment.
Otherwise, the batteries may leak and damage the battery compartment or keyboard.
• In order to save energy, the keyboard turns itself off after 30 minutes if no key is touched. To re-activate the keyboard, turn it off and on again.
In order to de-activate temporarily, keep the upper left key pressed and turn the keyboard on.

9. Connection of an External Mains Adapter

Instead of batteries/rechargeable batteries, an external mains adapter can be used to operate the keyboard (not included in the delivery, can be
ordered separately).
It must have a stabilised output voltage of 9 V/DC and an output current of at least 500 mA. The inner contact of the low voltage plug
(round plug, outer diameter 5.5 mm, inner diameter 2.1 mm) must conduct plus/+, the outer contact minus/-.
First switch off the keyboard and remove any inserted batteries or rechargeable batteries.
Plug the low-voltage plug of the external mains adapter in the low-voltage socket (41) at the rear
of the keyboard. Then plug the external mains adapter into a mains socket, see figure on the right.
Then the keyboard can be switched on again.
In order to save energy, the keyboard turns itself off after 30 minutes if no key is touched. To re-
activate the keyboard, turn it off and on again.
In order to de-activate temporarily, keep the upper left key pressed and turn the keyboard on.
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