Toa A-1706 - Block Diagram

10
11. BLOCK DIAGRAM
+ + + + + +
87654321
AUX 4
–
20 dB/10 kΩ
AUX 3
–
20 dB/10 kΩ
MIC 6
–
60 dB/600 Ω
AUX 2
–
20 dB/600 Ω
MIC 5
–
60 dB/600 Ω
AUX 1
–
20 dB/600 Ω
MIC 4
–
60 dB/600 Ω
MIC 3
–
60 dB/600 Ω
MIC 2
–
60 dB/600 Ω
MIC 1
–
60 dB/600 Ω
AUX 5
–
20 dB/10 kΩ
POWER REMOTE REMOTE VOLUME
+
–
H C
(70 V)
240 V 230 V
VCA
Relay 2 Relay 1
Power remote
EB EB EB EB EB EB
PA
ON
POWER switch
Power for control section
Power for audio section
Thermal sensor
Fan
240 W only
ZONE 2 ZONE 1
ZONE 1 (100 V) ZONE 2 (100 V)
Zone 2 Zone 1
POWER
220 – 230 V AC or 240 V AC, 50/60 Hz
A-1712 and A-1724 only
PT
Fuse
Fuse
Output level meter
(Relay 2) (Relay 1)
JP
OT
DIRECT (100 V) 4 – 16 Ω C C
REC OUT 0 dB LINE OUT, 0 dB/600 Ω PWR AMP IN, 600 Ω
0 dB–20 dB–20 dB
–20 dB –20 dB –20 dB –20 dB –20 dB
–20 dB
–20 dB
BASS/TREBLE
MASTER volume
Phantom power ON/OFF
Phantom power
Sensitivity selection
Function switch (DIP switch)
Sensitivity selection
Sensitivity selection