Analog Amp Circuit - Panasonic SA-PT170PH Service Manual

17.5. Analog Amp Circuit

1 2 3
SCHEMATIC DIAGRAM - 12
A
F ANALOG AMP CIRCUIT
3 2 1
Z1 Z2
B
CN5050
1
FRONT L 17
SIGNAL A_GND 16
FRONT R 15
14
AGND
REAL R/SUBWOOFER 13
AGND 12
B
TO
SURROUND L 11
MAIN CIRCUIT
AGND 10
(CN2009)
SURROUND R 9
C
IN SCHEMATIC
REAR L/AGND 8
DIAGRAM - 9
CENTER 7
6
MUTE S_C(MODE1)
MUTE F_SW(MODE2) 5
NC 4
ECO-DET 3
DC_DET 2
MOD_DA/STB 1
17
D
CN5051
G
TO
VDD 4
SMPS CIRCUIT
VDD 3
(H5801*)
GND 2
IN SCHEMATIC
GND 1
DIAGRAM - 14
Q5741
B1ABCF000176
FAN LOCK DETECT
E
CN5704
FANDCOUT(+) 1
TO FAN GND
2
FANLOCK 3
F
D5743
B0ACCK000005
C5797 D5744
50V1 B0ACCK000005
G
JK5000
SL-
SL-_OUT 12
SL+
SL+_OUT 11
SR-
SR-_OUT 10
SR+
SR+_OUT 9
FL-
FL-_OUT 8
TO
FL+
FL+_OUT 7
SPEAKERS
FR-
FR-_OUT
6
FR+
FR+_OUT 5
C-
C-_OUT 4
C+
C+_OUT 3
SW-
SW-_OUT 2
H
SW+
SW+_OUT 1
1 2 3
4 5 6
: +B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
C5805
0.1
TO HEATSINK
3 2 1
INPUT_GND
C5401 1 K5102 0
C5402 1 K5101 0
K5301 0
C5406 50V10
K5201 0
C5403 1
C5404 1 K5202 0
C5405 1 K5302 0
R5412 0
MODE1
MODE2
R5411 3.3K
ECO_DET
DC_DET
D5303
B0ACCK000005
R5313 47K
Q5740
B1BACG000023
FAN MOTOR DRIVE
D5755
MAZ80750ML
Q5742
R5763
B1ABCF000176
56
R5757
FAN MOTOR DRIVE
10K
R5756
10K
Q5744
B1ABCF000176
FAN MOTOR DRIVE
R5760
10K
K5504
0
4 5 6
7 8 9
IC5100
AN17831A
2CH BTL POWER AMPLIFIER
1 2
VCC
FL
D5100
B0JCPD000025
FR
R5102 33K
FL
SW
R5101 33K
SL
SR
MUTE_FR_SW
MODE2
C STBY
INPUT_GND
INPUT_GND
1.2K
R5107
R5106 1.2K
IC5200
AN17831A
2CH BTL POWER AMPLIFIER
1 2
VCC
D5200
B0JCPD000025
AGND
R5202 33K
SL
SR R5201 33K
STBY
MUTE_SURR
MODE1
INPUT_GND
R5207 1.2K
R5206 1.2K
IC5300
AN17831A
2CH BTL POWER AMPLIFIER
1 2
VCC
D5300
B0JCPD000025
AGND
R5301 47K
SW
R5302 33K
C
STBY
FAN_SIGNAL
MUTE_FR_SW
INPUT_GND
R5307 1.2K
R5306 1.2K
DC_DET
C5315
R5315 10K
ECO_DET 1
D5302
C5314
B0ACCK000005
R5314 10K 1
Q5751
D5301
B1ABCF000176
B0ACCK000005
DC DETECT
7 8 9
110
10 11 12
3 4 5 6 7 8 9 10 11 12
FR+_OUT
C5104 C5105
390P
390P
FR-_OUT
FL+_OUT
FL-_OUT
Q5753
B1ABCF000176
DC DETECT
Q5754
B1ABCF000176
3 4 5 6 7 8 9 10 11 12
DC DETECT
SR+_OUT
C5204 C5205
390P 390P
SR-_OUT
SL+_OUT
SL-_OUT
Q5747
B1ABCF000176
DC DETECT
Q5748
3 4 5 6 7 8 9 10 11 12 B1ABCF000176
DC DETECT
SW+_OUT
C5304 C5305
470P 390P
SW-_OUT
C+_OUT
C-_OUT
Q5749
B1ABCF000176
DC DETECT
Q5752
Q5750
B1ACKD000005
B1ABCF000176
DC DETECT
DC DETECT
DC DET-SP
SA-PT170PH/PR ANALOG AMP
10 11 12
13 14
A
FR+
B
C5102
0.1
R5105
22
FR-
FL+
C5106
0.1
R5109
22
FL-
C
DCDET-SP
D
SR+
C5202
0.1
R5205
22
SR-
SL+
C5206
0.1
R5209
22
SL-
E
DCDET-SP
SW+ F
C5302
0.1
R5305
22
SW-
C+
C5306
0.1
R5309
22
C-
G
H
DCDET-SP
CIRCUIT
13 14