D-Amp Circuit - Panasonic SA-BT300PX Service Manual

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16.5. D-Amp Circuit

1
2
3
SCHEMATIC DIAGRAM - 34
A
J
D-AMP CIRCUIT
B
CN8501
22
FRONT L
1
AGND
2
FRONT R
3
AGND
4
SUB WOOFER
5
C
AGND
6
SURROUND L
7
AGND
8
B
SURROUND R
9
TO
AGND
10
MAIN CIRCUIT
CENTER
11
(CN503)
MUTE_S(MODE 1)
12
IN SCHEMATIC
MUTE_S(MODE 2)
13
DIAGRAM - 27
FHOP
14
PVCONT
15
DC_DET1
16
MOD_DA
17
R8005
D
AGND
18
SURROUND BACK L
19
SURROUND BACK R
20
A +7V
21
A -7V
22
1
E
C8047
0.1
R8058
1.2K
Q8014
B1ADNB000003
POWER SUPPLY
F
G
H
4
5
6
: +B SIGNAL LINE
: -B SIGNAL LINE
: AUDIO OUTPUT SIGNAL LINE
FRONT L
+B
FRONT R
SUB WOOFER
-B
SURR L
SURR R
AGND
CENTER
MODE1
MODE2
FHOP
VCC
PVCONT
MOD_DA
1K
SURR B L
SURR B R
IC8008
C0CBADC00042
VOLTAGE REGULATOR
3
2
1
VAA
DC_DET1
R8055
2.7K
C8039
0.1
GND
C8048
R8056
10
0
Q8015
B1ADCE000012
POWER CONTROL
C8049
R8057
10
2.2K
VSS
FAN
7
8
9
10
C8017
D8017
R8090
0.1
B0ACCK000005
10K
C8018
0.1
ZA8100*
D8018
MAZ8150GML
G1
G2
Q8026
B1BACG000048
R8023
REGULATOR
68
C8066
0.01
C8015
R8022
0.47
R8024
8.2K
100
D8016
C8013
C8016
MAZ8110GML
16V22
0.47
Q8008
B1BACD000018
FAN MOTOR DRIVE
C8025
Q8006
R8029
10K
16V22
Q8007
B1ABCF000176
B1ABCF000176
FAN LOCK DETECT
FAN MOTOR DRIVE
R8030
R8027
R8028
10K
56K
0
D8013
MAZ8075GML
C8021
C8024
16V33
6.3V220
R8033
C8027
16V10
10K
R8031
C8022
10K
5600P
C8026
R8035
C8023
D8006
R8032
1.8M
0.1
B0ACCK000005
50V1
56K
Q8009
B1ABCF000176
D8007
FAN MOTOR DRIVE
B0ACCK000005
TO D-AMP
SECTION (4/6)
102
11
12
13
CN8502
8
+B (38V/30V)
K
C8019
7
+B (38V/30V)
TO
50V820
GND
6
SMPS CIRCUIT
5
GND
(JW1*)
C8020
4
-B (38V/30V)
50V820
IN SCHEMATIC
3
-B (38V/30V)
DIAGRAM - 40
2
FAN GND
1
FAN DC (14-23V)
CN8505
1
FAN DC OUT
TO FAN
2
FAN GND
C8029
FAN LOCK
0.1
3
C8028
R8037
1000P
1.2K
R8036
22
R8043
0
D8014
MAZ8120GML
TO D-AMP
SECTION (2/6)
1/6
2/6
3/6
4/6
5/6
6/6
SA-BT300PX D-AMP CIRCUIT
14
P3

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