TOA Electronics P-9060DH - Manual (Page 13)

13
14. BLOCK DIAGRAM
VI Limiter
Offset Detector
Output Level Sensor
Protection Circuit
Power Supply for Power Amp. Unit
FAN Control
Heat Sink Temperature Sensor Mute Control
Power Supply for Preamplifier
H C
CH 1 10 kΩ
E
GAIN
Electronically balanced
VOLUME
CH 1 Power Amp. Unit
VOLUME
H C
CH 2 10 kΩ
E
CH 1 70 V Line SP OUT
(BTL) (BTL)
CH 2 70 V Line
–20 dB
GAIN
0 dB
–20 dB
0 dB
Electronically balanced
CH 1 TO ALL switch CH 1/CH 2
PROTECT
POWER
PEAK SIGNAL
VI Limiter
Offset Detector
Output Level Sensor
Protection Circuit
CH 2 Power Amp. Unit
PROTECT PEAK SIGNAL
–Vcc +Vcc
PT
POWER
switch
120 V AC, 60 Hz
–Vcc +Vcc
FAN