Panasonic SA-AKX90PH Service Manual page 91

: AUDIO OUTPUT SIGNAL LINE
P1
TO POWER AMPLIFIER
SECTION (1/2)
IC5000
D-AMP P.C.B. C1BA00000497
POWER AMPLIFIER
STABI
-30V 12
FRONT R HIGH IN1+
2
OSC
1
MODE
23
FRONT R LOW IN2-
21
FAN
DC DET
IC5200
C1BA00000497
POWER AMPLIFIER
STABI
-30V 12
IN1+
2
OSC OSC
1
MODE MODE
23
SUBWOOFER IN2-
21
IC5300
C1BA00000497
POWER AMPLIFIER
STABI
-30V 12
IN1+
2
OSC
1
MODE
23
IN2-
21
30V 30V -30V
4 20 8 11
BOOT1
STABI 9
DRIVER
HIGH
SWITCH1
CONTROL
INPUT PWM OUT1
10
&
STAGE MODULATOR RELEASE1
HANDSHAKE
DRIVER
LOW
MUTE
ENABLE1
TEMP. SENSOR
PROT
OSCILLATOR MANAGER CURRENT PROTECTION 7 -30V
VOLT. PROTECTION
ENABLE2
BOOT2
MODE 15
DRIVER
HIGH
SWITCH2
CONTROL
OUT2
INPUT PWM 14
&
STAGE MODULATOR RELEASE2
HANDSHAKE
DRIVER
LOW
MUTE
6 18 17 13 16
-30V -30V 30V
30V 30V -30V
4 20 8 11
BOOT1
STABI 9
DRIVER
HIGH
SWITCH1
CONTROL
OUT1
INPUT PWM
& 10
STAGE MODULATOR RELEASE1
HANDSHAKE
DRIVER
LOW
MUTE
ENABLE1
TEMP. SENSOR
PROT
OSCILLATOR MANAGER CURRENT PROTECTION 7 -30V
VOLT. PROTECTION
ENABLE2
BOOT2
MODE
15
DRIVER
HIGH
SWITCH2
CONTROL OUT2
INPUT PWM
14
&
STAGE MODULATOR
RELEASE2
HANDSHAKE
DRIVER
LOW
MUTE
6 18 17 13 16
-30V -30V 30V
30V 30V -30V
4 20 8 11
BOOT1
STABI 9
DRIVER
HIGH
SWITCH1
CONTROL
INPUT PWM OUT1
10
&
STAGE MODULATOR RELEASE1
HANDSHAKE
DRIVER
LOW
MUTE
ENABLE1
TEMP. SENSOR
PROT
OSCILLATOR MANAGER CURRENT PROTECTION 7 -30V
VOLT. PROTECTION
ENABLE2
BOOT2
MODE 15
DRIVER
HIGH
SWITCH2
CONTROL
OUT2
INPUT PWM 14
&
STAGE MODULATOR RELEASE2
HANDSHAKE
DRIVER
LOW
MUTE
6 18 17 13 16
-30V -30V 30V
91
JK5001
+
FRONT (RIGHT)
8
JK5001 HIGH
-
7
JK5001
+
FRONT (RIGHT)
6
JK5001 LOW
-
5
JK5001
+
10
SUBWOOFER 1
JK5001
-
9
JK5001
+
12
SUBWOOFER 2
JK5001
-
11
SA-AKX90PH/PR POWER AMPLIFIER (2/2) BLOCK DIAGRAM