SA-VKX80GA, SA-VKX80GC, SA-VKX80GS - Panasonic Audio Service Manual (repair manual). Page 106

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106
SA-VKX80GA/GC/GS POWER AMPLIFIER & VIDEO (2/2) BLOCK DIAGRAM
TO POWER AMPLIFIER
& VIDEO
SECTION (1/2)
P1
FRONT R LOW
FRONT R HIGH
SUBWOOFER
POWER AMPLIFIER
C1BA00000497
IC5000
OUT1
10
BOOT1
VDDP1
VSSP1
VSSP2
VDDP2
9
8
13
11
16
VDDA1
VDDA2
VSSA1
VSSA2
4
6
20
18
VSSD
17
2
IN1+
1
OSC
INPUT
STAGE
PWM
MODULATOR
RELEASE1
ENABLE1
ENABLE2
SWITCH1
MUTE
DRIVER
HIGH
DRIVER
LOW
CONTROL
&
HANDSHAKE
OUT2
14
BOOT2
15
PROT
7
21
IN2-
INPUT
STAGE
23
MODE
MODE
12
STABI
STABI
PWM
MODULATOR
OSCILLATOR
MANAGER
TEMP. SENSOR
CURRENT PROTECTION
VOLT. PROTECTION
RELEASE2
SWITCH2
MUTE
DRIVER
HIGH
DRIVER
LOW
CONTROL
&
HANDSHAKE
-30V
30V
-30V
-30V
30V
-30V
-30V
30V
+
-
6
JK5001
5
JK5001
+
-
FRONT (RIGHT)
HIGH
FRONT (RIGHT)
LOW
8
JK5001
7
JK5001
POWER AMPLIFIER
C1BA00000497
IC5200
OUT1
10
BOOT1
VDDP1
VSSP1
VSSP2
VDDP2
9
8
13
11
16
VDDA1
VDDA2
VSSA1
VSSA2
4
6
20
18
VSSD
17
2
IN1+
1
OSC
INPUT
STAGE
PWM
MODULATOR
RELEASE1
ENABLE1
ENABLE2
SWITCH1
MUTE
DRIVER
HIGH
DRIVER
LOW
CONTROL
&
HANDSHAKE
OUT2
14
BOOT2
15
PROT
7
21
IN2-
INPUT
STAGE
23
MODE
MODE
12
STABI
STABI
PWM
MODULATOR
OSCILLATOR
MANAGER
TEMP. SENSOR
CURRENT PROTECTION
VOLT. PROTECTION
RELEASE2
SWITCH2
MUTE
DRIVER
HIGH
DRIVER
LOW
CONTROL
&
HANDSHAKE
-30V
30V
-30V
-30V
30V
-30V
-30V
30V
+
-
SUBWOOFER
10
JK5001
9
JK5001
DC DET
OSC2
OSC
MODE
FAN
D-AMP P.C.B.
SPEAKERS
: AUDIO OUTPUT SIGNAL LINE
: VIDEO OUTPUT SIGNAL LINE

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