Block Diagram - Alpine MRP-F240 Service Manual

Block Diagram

RCA-IN
CH-1(L)
SP-IN
CH-1
CH-2
RCA-IN
CH-2(R)
PRE-OUT
CH-1+3(L)
PRE-OUT
CH-2+4(R)
RCA-IN
CH-3(L)
SP-IN
CH-3
CH-4
RCA-IN
CH-4(R)
MUTE ON/OFF
BATT
REM
GND
ISOLATOR GAIN
50K-A
ISOLATOR GAIN
BUFFER
50K-A
BUFFER
ISOLATOR GAIN BASS EQ
50K-A 5K-E
ISOLATOR GAIN BASS EQ
50K-A 5K-E
DRIVER
LINE CHOKE
POWER
ON/OFF
LED
HPF(12dB/OCT) SEL
80Hz-FIX S/W
LPF(12dB/OCT)
80Hz-FIX
SEL
HPF(12dB/OCT)
S/W
80Hz-FIX
LPF(12dB/OCT)
80Hz-FIX
LPF(12dB/OCT) HPF(12dB/OCT)
80Hz-FIX 80Hz-FIX
LPF(12dB/OCT) HPF(12dB/OCT)
80Hz-FIX 80Hz-FIX
Over Temperature Protect (Trans)
POWER
PWM IC
FET
DC off set
Over Current Protect
Pre
POWER AMP
drive
MUTE ON/OFF
DC off set
Over Current Protect
Pre
POWER AMP
drive
MUTE ON/OFF
DC off set
Over Current Protect
SEL
S/W Pre
POWER AMP
drive
MUTE ON/OFF
DC off set
Over Current Protect
SEL
S/W
Pre
POWER AMP
drive
MUTE ON/OFF
±Vcc
Thermal
RECTIFIER
AND
REGULATER
Power trans
SENSOR
SENSOR
CH-1(+)
CH-1(-)
SENSOR
SENSOR
CH-2(-)
CH-2(+)
SENSOR
SENSOR
CH-3(+)
CH-3(-)
SENSOR
SENSOR
CH-4(-)
CH-4(+)
±15V
GND
SIG
±15V
REGULATOR
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