MA-30M / MA-60M Version 1.0
Page 8 of 11
MA-30M / MA-60M
AMPLIFIER
5.6.
LIFT ‐ GND SWITCH
This amplifier includes a ground to frame link switch. A single frame to ground link should exist in
the installation; in other case ground noise could appear.
Place the switch in the GND position to
join frame and ground or in the LIFT position to separate them.
6.
MUSIC SOURCE
Device includes an embedded music source with USB MP3 player and Bluetooth. Its functionality is
described in the following items.
6.1.
VOLUME CONTROL
In any of the working modes press and hold
buttons to decrease and increase the volume.
6.2.
USB PLAYBACK
Insert a USB drive into the USB port.
Press the
MENU
button to select USB.
Press
to play or pause current track.
Short Press the buttons
to play previous or next track.
Long press
REC
to start recording (it records in the USB CH1, CH2 and CH3 inputs in MP3).
Short press
REC
to stop recording.
Short press
REP
to change among REP modes, Repeat one
Repeat all
No repeat.
6.3.
BLUETOOTH
Press MODE button to switch to Bluetooth mode. Activate the Bluetooth of your device and
synchronize with the amplifier, the Bluetooth device name is “OPTIMUS MA”. Once synchronized
music is broadcasted automatically.
Short press buttons
to play previous or next track.
Press
button to pause or play current track.
7.
SD CARD MESSAGE PLAYER
Device includes an embedded message player with microSD card.
The messages have to be stored int the microSD card in MP3 format.
Close and keep close the
MSG.PLAY
contact to play the messages, the unit will broadcast them in
sequence. If contact is open and then closed again, even if the unit is powered off and on, the
player will continue the broadcasting in the same point.
SD card player is affected by Master volume control.
