Block diagram – Toa BG-235 User Manual
Page 14
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14
15. BLOCK DIAGRAM
ELECTRONICALLY
BALANCED
POWER AMP
SPEAKER OUT (ZONE 1)
MIC/
LINE 1
600 Ω
MIC/LINE 1
AC120 V 60 Hz
POWER
SUPPLY
FOR
POWER AMP
70 V LINE
LINE 2
10 kΩ
H
E
H
C
E
MANUAL
MUTE
MUTE
LINE 2
ON
MUTE SENSE
MIX AMP
MIX AMP
25 V LINE
4 Ω
COM
H
C
E
OT
MOH OUT (ZONE 2)
600 Ω
1: MOH ASSIGN (MIC/LINE 1)
2: MOH ASSIGN (LINE 2)
3: MOH ASSIGN (LINE 3)
4: – – – ––
5: MUTE RECIEVE (LINE 2)
6: MUTE RECIEVE (LINE 3)
7: AUTO MUTE (MIC/LINE 1)
8: MIC (ON)/LINE 1 (OFF)
8
1
DIP SWITCH
H
E
LINE OUT
600 Ω
TONE CONTROL
BASS
T
REBLE
PT
MOH
POWER
SUPPLY
FOR
PRE AMP
THERMOSTAT
(ON HEATSINK)
RELAY
BREAKER
SIGNAL
PEAK
POWER
LINE 3
10 kΩ
H
E
POWER
SWITCH
FUSE
OT
LINE 3
MUTE
MUTE
CONTROL
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