Audio Digital Amp - Panasonic SA-VK960GCP Service Manual

3.7.

Audio Digital Amp

IC5300
:MAIN SIGNAL LINE
C1BA00000487
AUDIO DIGITAL POWER AMP
FROM AUDIO
CNP2370 CN5603 FRONT L IN1M
3
7 15
INPUT
STAGE
IN1P
2
MUTE
SGND1
5
OSC
1
OSCILLATOR
MODE
MODE
23
SGND2
19
MUTE
CN5603 FRONT R IN2P
CNP2370
22
6 9
INPUT
STAGE
IN2M
21
FROM SYSTEM CONTROL Q5600,Q5602
Q5603
CNP2810 CN2810 MUTE S
3
CNP2810 CN2810 MUTE F MUTING
4 CIRCUIT
CNP2810 CN2810 MOD DA
2
IC5400
C1BA00000487
AUDIO DIGITAL POWER AMP
IN1M
3
FROM AUDIO
INPUT
STAGE
CNP2370 CN5603 SURROUND L IN1P
2
5
MUTE
SGND1
5
OSC
1
OSCILLATOR
MODE
23 MODE
SGND2
19
MUTE
CNP2370 CN5603 SURROUND R IN2P
22
3
INPUT
STAGE
IN2M
21
CNP2370 CN5603 CENTER
6
SUBWOOFER
CNP2370 CN5603
1
FROM/TO SYSTEM CONTROL
CNP2370 CN5603 F HOP
12
CNP2370 CN5603 DC DET
11
FROM POWER
H5903 CN5502 DC DET
11
+ 30V
- 30V
12 7 16 8
BOOT1
9
RELEASE1
DRIVER
PWM
HIGH
MODULATOR SWITCH1
CONTROL
FR L
OUT1
AND
10
ENABLE1
HANDSHAKE
DRIVER
LOW
STABI
TEMPERATURE SENSOR
MANAGER
CURRENT PROTECTION
VOLTAGE PROTECTION
BOOT2
15
ENABLE2
DRIVER
HIGH
CONTROL
FL R
OUT2
SWITCH2 AND
14
HANDSHAKE
PWM
DRIVER
RELEASE2
MODULATOR
LOW
11 13
- 30V
+ 30V
- 30V
12 7 16 8
BOOT1
9
RELEASE1
DRIVER
PWM
HIGH
SWITCH1
MODULATOR
CONTROL
SUR L
OUT1
AND
10
ENABLE1
HANDSHAKE
DRIVER
LOW
STABI
TEMPERATURE SENSOR
MANAGER
CURRENT PROTECTION
VOLTAGE PROTECTION
BOOT2
15
ENABLE2 DRIVER
HIGH
CONTROL
SUR R
OUT2
SWITCH2 AND
14
HANDSHAKE
PWM
DRIVER
RELEASE2
MODULATOR
LOW
11 13
- 30V
IC5500
C0JBAB000011
INVERTER GATE
(CLOCK GENERATOR)
2 3 4 11 10
1
6 5
Q5501
X5500
375KHz
Q5500
X5501
415KHz
- 30V
IC5200
C1BA00000487
AUDIO DIGITAL POWER AMP
12 7
IN1M RELEASE1
3
PWM
INPUT
SWITCH1
STAGE MODULATOR
IN1P CONTROL
2
AND
ENABLE1
HANDSHAKE
MUTE
SGND1
5
STABI
OSC
1
TEMPERATURE SENSOR
OSCILLATOR MANAGER
MODE
CURRENT PROTECTION
23 MODE
VOLTAGE PROTECTION
SGND2
19
ENABLE2
MUTE
CONTROL
SWITCH2
IN2P AND
22
HANDSHAKE
INPUT PWM
STAGE RELEASE2
MODULATOR
IN2M
21
- 30V
IC5100
C1BA00000487
AUDIO DIGITAL POWER AMP
12 7
IN1M RELEASE1
3
PWM
INPUT
SUBWOOFER
SWITCH1
STAGE MODULATOR
IN1P CONTROL
2
AND
ENABLE1
HANDSHAKE
MUTE
SGND1
5
STABI
OSC
1
TEMPERATURE SENSOR
OSCILLATOR MANAGER
CURRENT PROTECTION
MODE
23 MODE
VOLTAGE PROTECTION
D5557
SGND2
19
ENABLE2
MUTE
CENTER CONTROL
IN2P SWITCH2 AND
22
HANDSHAKE
INPUT PWM
RELEASE2
STAGE MODULATOR
IN2M
21
21
SPEAKERS
+ 30V
FRONT L
FR L CN5604 HW5604
JK5302
+
16 8
6 7
JK5302
-
8
BOOT1
9
FRONT R
DRIVER
HIGH FR R CN5604 HW5604 JK5302
+
8 5
OUT1
10 JK5302
-
6
DRIVER
LOW
SURROUND L
SUR L
CN5604 HW5604 JK5304
+
10 1
JK5304
-
2
SURROUND R
BOOT2
15
SUR R
CN5604 HW5604 JK5304
+
12 3
DRIVER
JK5304
-
HIGH
4
OUT2
14
DRIVER
SUBWOOFER L
LOW
SW L
CN5604 HW5604 JK5301
+
3
3
JK5301
13 -
11
4
- 30V
SUBWOOFER R
CN5604 HW5604 JK5301
+
5 5
+ 30V
JK5301
-
6
16 8
FRONT LOWER L
LOW
BOOT1 CN5604 HW5604
JK5302
+
9
1 5
JK5302
-
6
DRIVER
HIGH
OUT1
FRONT LOWER R
10
JK5301
DRIVER +
1
LOW
JK5301
-
2
BOOT2
15
DRIVER
HIGH CENTER
CENT
OUT2 CN5604 HW5604
JK5304
+
14
9 5
JK5304
DRIVER -
6
LOW
CN5603 CNP2370
13
11
10
D5556
- 30V
Q5550,
Q5551
DC DETECT
FAN
Q2900
Q2902,
Q2904
Q2906
+VE CNP2913
1
FAN MOTOR
DC DETECT M
DRIVE -VE CNP2913
2
SIGNAL
FAN
Q2901
Q2903,
Q2905
Q2907 +VE CNP2914
1
FAN MOTOR
DC DETECT M
DRIVE -VE CNP2914
2
SA-VK960GCP AUDIO DIGITAL AMP BLOCK DIAGRAM
SA-VK960GCP