User manual

00053678.DOC, Version 1.2
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5.2 Operating elements and connections
This user manual describes the MP-250 as a reference. The other models are similar in construction.
1
Power on/off
Turns the unit on and off. The power indicator lights up
when the unit is powered on.
2 Control LEVEL
Master control for the total volume.
3 Tone controls
2-way tone control for the output signal: bass and treble.
4 Controls MIC 1 to 3
Volume controls for the microphone inputs MIC 1 to 3.
5 Input PRIORITY MIC 3
6.3 mm jack for connecting a dynamic microphone. This
input has priority: In case of an announcement via this
microphone channel the level of the other signal sources
is attenuated–depending on the rear control PRIORITY
LEVEL–thereby increasing the intelligibility of the
announcement.
6
LED level meter for the output signal
7 Controls LINE 1 to 3
Volume controls for the line inputs LINE 1 to 3.
8 Button CHIME
For releasing the chime.
9 LED FAULT
Lights up with activated protective circuit:
• for a few seconds after switching-on unit the speaker
outputs are ready for operation
• during operation when the protective circuit has
switched off the speakers in case of a defect
10 Power LED