Rear Panel Controls; Ac Power Cord; Mute Control - Inter-m PA-920D Operating Manual

REAR PANEL CONTROLS

2
FUSE
T1AL/250V
~AC INPUT
230V 50Hz, 65W
CAUTION;
WITH SAME TYPE FUSE. UTILISER UN FUSIBLE DE RECHANGE
DE MEME TYPE
1

1. AC POWER CORD

Plug this AC input cord into AC outlet.
2. FUSE HOLDER (AC)
This fuse holder contain AC fuse, replace only with same type fuse when it is blown out. If it
continuously blow, stop replacing fuse and refer serving to qualified personal. Fuse rating is
T1A/250V – AC 220V~240V, T2A/250V – AC 100V~120V.
3. DC INPUT CONNECTOR
This terminal is for connecting DC power supply of battery. (+12V)
4. MIC INPUT CONNECTOR
These are balanced phone connectors. Nominal input level is –50dB/600 ohm.
5. AUX INPUT CONNECTOR
These are unbalanced phone connectors. Nominal input level is –10dB/47Kohm.
6. TELEPHONE INPUT TERMINAL
These terminal are to be connected to telephone exchange system for paging. Nominal input
level is 0.3V/600Ω.
NOTE: When there are paging signal through this terminals, the other input signals are muted.

7. MUTE CONTROL

When the other signal is muted by Mic 1 and Telephone paging, these control are used for
adjusting the muting level.
8. SPEAKER OUTPUT TERMINAL
This terminal is for speaker wire connection. You can select one of 4 ohms, 8 ohms, 25V and 70,
100 volts. Be sure not to make the total impedance less than rated impedance.
8
OUTPUT
70V 100V
COM 4Ω 8Ω
MODEL NO;PA-920D
-
+
DC INPUT
12V
TO REDUCE THE RISK OF FIRE REPLACE ONLY
3
6
TELEPHONE IN
+ -
GND
CAUTION;
DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
AVIS;
RISQUE DE CHOC ELECTRIOUE NE PAS OUVRIR.
S/N
AMPLIFIER
OUTPUT POWER:20W
TEL/MUTE
MADE IN KOREA
5 4
INPUT
AUX MIC2 MIC1
TO REDUCE THE RISK OF ELECTRIC SHOCK,
MIC1/MUTE
7
4 4