Chime on/off
1. Switching the manual priority terminals on the rear panel will activate the chime function.
2. Depending on the position of the “chime” switch on the rear of the amplifier. switching on
Microphone 1~4 (DIN Socket) will activate the chime (Ding-Dong attention signal, preceding
a call). The default Volume of the chime is set at 8dB(40V). Which will be Sufficient in most
applications. If required the Volume Can be altered by adjusting the potention meter
(VR303, Chime) on the main PCB of the unit.
Telephone/Emergency Connection
The emergency input is for emergency announcements / signals and is not affected by the
master volume control. The volume can be setted by the volume control on the rear panel
(can not be set to zero).
The emergency input has the highest priority , all other units will be overruled.
Monitor output (MOH) Connection
Two monitor outputs are provided on the rear panel.
(i) 600O / 1V. to feed an EPABX system. Output level adjustable. Please consult your EPABX
handbook to utilise this facilit y.
(ii) 8O, 1W for monitoring applications.
Line (Aux/CD) Connection
The equipment provides an auxiliary input which may be used for connecting other signal
sources such as a Radio Tuner, CD or Cassette player. A slide switch is located on the front
panel for selection of, Aux and CD. The line level Control operates on each of the input
sources. To ope rate select the desired music source using the slide switch and turn the “Line”
control clockwise to increase the volume or anticlockwise to reduce the volume.
The Aux / CD input sockets are standard RCA phono, two sockets are supplied and these are
linked together internall y, this allows stereo signal source to be used without the need to
obtain a special lead, however you may wish to check with the manufacturer of the signal
source to ensure that no damage will result if the left and right output channels are put in
parallel.
RC A Phono plug connections
Tape Output Connection
These standard RCA phono sockets provide a mixed output suitable for connection to a tape or
Cassette recorde
r.
Power in and pre out
Connects the mixer/preamplifier stage to the power amplifier stage. The connecting link must
be plugged in for normal operation as a mixer/amplifier. If a compressor/limiter, equalizer, or
other external signal processor is used in the sound system, connect the “PRE OUT ’ to the
input of the external processor and the output of the processor to “POWER IN” In the signal chain, “PRE
OUT” is after the tone controls and the master volume control.
Sleeve- Screen
Pin- Signal
CONTROL
SYSTEM
PRIORITY
CHIME SIGNAL
+VCC
CD
AUX
MIC4
MIC3
Pre AMP
BUS
MUTE
Pre AMP
Pre AMP
MUTE
MUTE
+VCC
+VCC
+VCC
MIC1
MIC2
+12V (50mA)
VOX
Pre AMP
Pre AMP
MUTE
MUTE
SW
CHIME ON/OFF
Pre OUT
Pre AMP
VOX
RECTIFIER
FUSE
MOH DRIVER
8OHM
COM
100V
TRANS.
FUSE
PA120/2 PRO
TEL
115V/230V
600OHM
8OHM
COM
DC24V
POWER IN
VCA
RELAY
LINK
Pre AMP
Pre ANP
LINE OUT
CONTROL
VOLUME
MASTER
CONTROL
FUSE
TRANS.
STAND ALDNE
POIORITY
UNBALANCED OUT
UNBALANCED IN
BALANCED OUT
SW CONTROL
Pre AMP
Pre AMP
RECTIFIER
FUSE
TRANS.
BALANCED IN
Pre AMP
SELECT
SLAVE
MASTER
VR
115V/230V
PA120/2 PRO
DC24V
COM
8OHM
RELAY
POWER AMP
SPEECH ONLY
100V
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