Block diagram – TOA Electronics BG-1120 User Manual
Page 15

15
Mic
–
60 dB/600
Ω
Balanced
Tel
–
20 dB/10 k
Ω
Mute
Module
AUX
–
10 dB/47 k
Ω
Program
–
10 dB/10 k
Ω
IN
OUT
Option
EBA
I.T.
Module
10 k
Ω
JP204
JP208
JP207
JP209
600
Ω
ON
OFF
Phantom Power (DC 24 V)
Option
EBA
I.T.
I.T.
Mic Vol.
Tel Vol.
Mute
B
A
Tone
Bass
Treble
Mute Cont.
Mute Cont.
Mute
Mute
Preamp OUT
(Preamplifier Output)
Power IN
(Power Amplifier Input)
70
Output 15 W/30 W/
60 W/120 W
4Ω
COM.
25
Output 1 W 1 W/8
Ω
MOH output
1 V/600
Ω
Power
Peak
Signal
O.T.
Power
O.T.
AC 120 V
60 Hz
Breaker
Breaker
Power S.W.
P.T
MOH Vol.
Output 1W Vol.
Power
A.C. Outlet
JP212
JP301
JP201
JP215
JP211
JP214
JP210
JP213
BGM
AUX Vol.
Program Vol.
Mute selector
BGM
PAGE
PAGE
BGM
PAGE
12. BLOCK DIAGRAM