SA-PT470EB, SA-PT470EF, SA-PT470EG, SA-PT570EB, SA-PT570EG, SA-PT570EP, SA-PT570EE, SA-PT870EB, SA-PT870EG, SA-PT870EP, SA-PT870EE - Panasonic Audio Service Manual Supplement (repair manual). Page 5

Read Panasonic SA-PT470EB / SA-PT470EF / SA-PT470EG / SA-PT570EB / SA-PT570EG / SA-PT570EP / SA-PT570EE / SA-PT870EB / SA-PT870EG / SA-PT870EP / SA-PT870EE Service Manual Supplement online

5
2 Block Diagram
2.1.
Digital Audio Amp
With reference to original service manual (section 14.7) on page 105 for model no. SA-PT470EB/EG/EF-K,EG-S
With reference to original service manual (section 14.7) on page 109 for model no. SA-PT570EB/EG/EF-K,EG/EF-S
With reference to original service manual (section 14.7) on page 110 for model no. SA-PT570EE-K and SA-PT870EE-K
With reference to original service manual (section 14.7) on page 108 for model no. SA-PT870EB/EG/EP-K
IN1M
IN2P
IN1P
IN2M
SGND1
SGND2
OSC
MODE
INPUT
STAGE
INPUT
STAGE
PWM
MODULATOR
CONTROL
AND
HANDSHAKE
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
PWM
MODULATOR
OSCILLATOR
MANAGER
STABI
RELEASE1
RELEASE2
SWITCH1
SWITCH2
ENABLE1
ENABLE2
MUTE
MUTE
MODE
2
3
STABI
PROT
VDDP2
VSSP2
VDDP1
VSSP1
BOOT1
BOOT2
OUT1
SL +
SR +
OUT2
IC5400
C1BA00000487
AUDIO DIGITAL POWER AMP
5
19
23
1
22
21
9
10
15
14
13
11
8
16
12
7
IN1M
IN2P
IN1P
IN2M
SGND1
SGND2
OSC
MODE
INPUT
STAGE
INPUT
STAGE
PWM
MODULATOR
CONTROL
AND
HANDSHAKE
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
PWM
MODULATOR
OSCILLATOR
MANAGER
STABI
RELEASE1
RELEASE2
SWITCH1
SWITCH2
ENABLE1
ENABLE2
MUTE
MUTE
MODE
2
3
STABI
PROT
VDDP2
VSSP2
VDDP1
VSSP1
BOOT1
BOOT2
OUT1
FL + 
FR +
OUT2
IC5000
C1BA00000487
AUDIO DIGITAL POWER AMP
5
19
23
1
22
21
9
10
15
14
13
11
8
16
12
7
IN1M
IN2M
IN1P
IN2P
SGND1
SGND2
OSC
MODE
INPUT
STAGE
INPUT
STAGE
PWM
MODULATOR
CONTROL
AND
HANDSHAKE
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
PWM
MODULATOR
OSCILLATOR
MANAGER
STABI
RELEASE1
RELEASE2
SWITCH1
SWITCH2
ENABLE1
ENABLE2
MUTE
MUTE
MODE
2
3
STABI
PROT
VDDP2
VSSP2
VDDP1
VSSP1
BOOT1
BOOT2
OUT1
OUT2
IC5200
C1BA00000487
AUDIO DIGITAL POWER AMP
5
19
23
1
21
22
9
10
15
14
13
11
8
16
12
7
IN1M
IN2M
IN1P
IN2P
SGND1
SGND2
OSC
MODE
INPUT
STAGE
INPUT
STAGE
PWM
MODULATOR
CONTROL
AND
HANDSHAKE
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
LOW
DRIVER
HIGH
DRIVER
LOW
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
PWM
MODULATOR
OSCILLATOR
MANAGER
STABI
RELEASE1
RELEASE2
SWITCH1
SWITCH2
ENABLE1
ENABLE2
MUTE
MUTE
MODE
2
STABI
PROT
VDDP2
VSSP2
VDDP1
VSSP1
BOOT1
BOOT2
OUT1
OUT2
IC5300
C1BA00000487
AUDIO DIGITAL POWER AMP
5
19
23
1
21
22
9
10
15
14
13
11
8
16
12
7
CENTER
C +
C -
MODE 1
SUBWOOFER
SW -
SW +
MODE 2
SURROUND R
SURROUND L
FRONT R
FRONT L
MUTE S
MUTE F
MOD DA
CENTER
SUBWOOFER
SL +
SR +
FL +
FR +
+
-
+
-
+
-
+
-
+
-
+
-
IC5500
HEX INVERTER 
(CLOCK GENERATOR)
C0JBAB000902
X5500
X5501
D5501
6
8
10
9
14
11
5
4
3
2
1
MUTING
CIRCUIT
Q5601,Q5602
Q5603,Q5604
MODE 1
MODE 2
CENTER
SUBWOOFER
SURROUND L
SURROUND R
FRONT L
FRONT R
SPEAKERS
DIGITAL AUDIO AMP BLOCK DIAGRAM
DC DET
ECO
Q5640,
Q5642,
Q5644
FAN MOTOR
DRIVE
M
D5645
DC DETECT
Q5101,Q5102
Q5641
FAN LOCK 
DETECT
FAN LOCK 
FAN DC OUT 
FAN GND 
FAN DC
3
FAN
FROM AUDIO
FROM AUDIO
FROM
SYSTEM CONTROL
FROM/TO
SYSTEM CONTROL
- 30V SENSE
- 30V SENSE
- 30V SENSE
- 30V SENSE
+ 30V SENSE
+ 30V SENSE
- 30V SENSE
- 30V SENSE
+ 30V SENSE
- 30V SENSE
- 30V SENSE
+ 30V SENSE
3
15
1
17
9
7
11
11
7
CN5050
CN2009
5
13
CN5050
CN2009
16
2
CN5050
CN2009
15
3
CN5050
CN2009
FHOP
14
4
CN5050
CN2009
CN5050
CN2009
CN5050
CN2009
12
6
CN5050
CN2009
CN5050
CN2009
CN5050
CN2009
10
JK5001
6
JK5001
5
JK5001
8
JK5001
7
JK5001
9
JK5001
12
JK5001
11
JK5001
2
JK5001
1
JK5001
4
JK5001
3
JK5001
13
5
CN5050
CN2009
17
1
CN5050
CN2009
1
CN5501
3
CN5501
2
CN5501
D5502
FAN DC
5V
: AUDIO OUTPUT SIGNAL LINE
D5305
D5306
DELETE
(IC5501)
13
12
ADD
ADD
CHANGE
CHANGE

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