Digital Audio Amp - Panasonic SA-PT465EE Service Manual

13.7. Digital Audio Amp

: MAIN SIGNAL LINE
IC5000
C1BA00000487
AUDIO DIGITAL POWER AMP
IN1M
3
INPUT
STAGE
FRONT R IN1P
CN2009 CN5050
2
3 15
MUTE
5 SGND1
OSC
1
FROM AUDIO
MODE
MODE
23
19 SGND2
MUTE
CN2009 CN5050 FRONT L IN2P
22
1 17
INPUT
STAGE
IN2M
21
Q5601,Q5602
Q5603,Q5604
CN2009 CN5050 MUTE S C
12 6
MODE 1
FROM SYSTEM CONTROL CN2009 CN5050 MUTING
MUTE F SW
MODE 2
CIRCUIT
13 5
CN2009 CN5050 MOD DA
17 1
IC5400
5V C1BA00000487
AUDIO DIGITAL POWER AMP
<SW+5V>
IN1M
3
INPUT
SURROUND R STAGE
CN2009 CN5050
IN1P
2
9
MUTE
5
SGND1
OSC
1
MODE
23 MODE
FROM AUDIO
19
SGND2
MUTE
SURROUND L
CN2009 CN5050
IN2P
22
7 11
INPUT
STAGE
IN2M
21
CN2009 CN5050 CENTER
11 7
CN2009 CN5050 SUBWOOFER
5 13
FHOP
CN2009 CN5050
14 4
FROM/TO
SYSTEM CONTROL
CN2009 CN5050
DC DET
16 2
+ 30V SENSE
- 30V SENSE
12 7 16 8
BOOT1
RELEASE1
DRIVER
PWM
HIGH
MODULATOR SWITCH1
CONTROL
AND
ENABLE1
HANDSHAKE
DRIVER
LOW
STABI
TEMPERATURE SENSOR
OSCILLATOR
MANAGER
CURRENT PROTECTION
VOLTAGE PROTECTION
BOOT2
ENABLE2 DRIVER
HIGH
CONTROL
SWITCH2 AND
HANDSHAKE
PWM
DRIVER
RELEASE2
MODULATOR
LOW
13
11
- 30V SENSE
+ 30V SENSE
- 30V SENSE
12 7 16 8
RELEASE1
DRIVER
PWM
HIGH
SWITCH1
MODULATOR
CONTROL
AND
ENABLE1
HANDSHAKE
DRIVER
LOW
STABI
TEMPERATURE SENSOR
OSCILLATOR
MANAGER
CURRENT PROTECTION
VOLTAGE PROTECTION
ENABLE2 DRIVER
HIGH
CONTROL
SWITCH2 AND
HANDSHAKE
PWM
DRIVER
RELEASE2
MODULATOR
LOW
11 13
- 30V SENSE
IC5500
C0JBAB000902
INVERTER GATE
(CLOCK GENERATOR)
D5501
10
1 2 3 4 5 6 11 9 8
14
X5501 X5500
5V
D5502
<SW+5V>
9
FR +
OUT1
10
15
FL +
OUT2
14
IC5300
C1BA00000487
BOOT1 AUDIO DIGITAL POWER AMP
9
OUT1 SR +
IN1M
10
3
INPUT
STAGE MODULATOR
SUBWOOFER IN1P
2
MUTE
5 SGND1
OSC
1
BOOT2
15
OSCILLATOR
MANAGER
MODE 2 MODE
MODE
23
OUT2 SL +
14 19 SGND2
MUTE
IN2P
22
INPUT
STAGE MODULATOR
CENTER IN2M
21
IC5501
C0JBAF000716
D-TYPE FLIP-FLOP
3 CP1 O1 1
5 D1 O1 2
14 CD1 SD1
4 6
65
C +
SW +
+ 30V SENSE
- 30V SENSE
12 7 16 8
BOOT1
9
RELEASE1
DRIVER
PWM
HIGH
SWITCH1
CONTROL
OUT1
AND
10
ENABLE1
HANDSHAKE
DRIVER
LOW
STABI
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
BOOT2
15
ENABLE2 DRIVER
HIGH
CONTROL
OUT2
SWITCH2 AND
14
HANDSHAKE
PWM
DRIVER
RELEASE2
LOW
11 13
- 30V SENSE
Q5101,Q5102
SA-PT465EE DIGITAL AUDIO AMP BLOCK DIAGRAM
SA-PT465EE
SPEAKERS
FRONT L
FL + JK5001
+
6
JK5001
-
5
FRONT R
FR +
JK5001
+
8
JK5001
-
7
SURROUND L
SL +
JK5001
+
2
JK5001
-
1
SURROUND R
SR +
JK5001
+
4
JK5001
-
3
CENTER
JK5001
+
10
JK5001
-
9
SUBWOOFER
JK5001
+
12
JK5001
-
11
DC DETECT
FAN
Q5641
FAN LOCK FAN LOCK CN5501
DETECT 3
D5645
FAN DC OUT
CN5501
1
FAN MOTOR
M
FAN DC
DRIVE FAN GND
CN5501
Q5640,
Q5642, 2
Q5644