FONESTAR MA-125Z Instruction Manual Download Page 5

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5.-

AUX

: auxiliary input. Input for signal source, for connecting through RCA connectors from audio sources.

6.-

LINE-PHANTOM 24 V-MIC:

input and 24 V phantom sensitivty switches. These switches have 3

positions:

LINE:

in this position, high level audio sources can be connected to inputs 1 to 4: preampliﬁed

microphones, CD, tape, tuner, etc.

MIC:

in this position, low impedance 30 - 600 Ω dynamic microphones can be connected to inputs 1 to 4.

PHANTOM 24 V:

in this position, electret condenser microphones that require 24 V phantom power

can be connected to inputs 1 to 4.

Use this switch with volume at its minimum to avoid noise.

7.-

INPUT 1 to 4:

microphone/line inputs that use a combined XLR and 6.3 mm jack connector, accepting

balanced and unbalanced 30 - 600 Ω microphone signals and balanced electret condenser microphones
that need 24 V phantom power, present in pins 2 and 3 of the XLR connector. High level balanced or
unbalanced line signals from mixers, CD, tape, tuner, etc. are accepted.

Select the appropriate position with the switch, taking care to move the volume controls to their
minimum to avoid noises.

The microphone 1 input has the priority function, cancelling all other inputs to give preference to paging
and emergencies, etc. The ampliﬁer is provided with priority cancelled. To activate this function, you
must turn the MUTE/SEN control on the back panel clockwise, to its maximum (maximum priority).

PRECAUTION

: when you connect or disconnect an unbalanced microphone, the switch must be in the

MIC position. If the switch is in the PHANTOM 24 V position it could damage the microphones. When
you use microphones that do not require phantom power, make sure that the switch is in the MIC
position, as the voltage present in pins 2 and 3 of the XLR connector could damage the microphones.
If in doubt, contact your supplier or the FONESTAR technical service..

8.-

MUTE/SEN:

control for activating/deactivating the priority in inputs INPUT 1 and TEL. Turn the control

clockwise to maximum and the rest of the controls will weaken automatically when a signal is detected
in inputs INPUT 1 or TEL. Turn it anti-clockwiseand the priority function will move to its minimum.

Note:

the ampliﬁer is supplied with priority deactivated. To activate this function you must turn the

MUTE/SEN control clockwise, to maximum (maximum priority).

9.-

GND. Earth:

earth screw, to use if the mains does not have one installed.

10.-

AC socket:

for connecting the AC mains cable.

11.-

DC Power Input:

24 V DC power supply. For the ampliﬁer to operate with 24 V DC power, batteries,