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Panasonic SA-BT300PX Service Manual Page 96

Blu-ray disc home theater sound system.
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SCHEMATIC DIAGRAM - 28
B
MAIN CIRCUIT
: +B SIGNAL LINE
P1
A+7V
SL_AVRS_IN
R3101
22K
SBL_AVRS_IN
R3102
22K
C3101
0.1
AGND
IC3101
C0ABBB000189
OP-AMP
C3102
0.1
SR_AVRS_IN
R3104
22K
SBR_AVRS_IN
R3105
22K
A-7V
R3116
22K
C3115
C3117
0.1
0.022
IC3104
C0ABBB000189
OP-AMP
R3118
47K
C3119
1000P
C3116
0.1
TO MAIN
SECTION (5/8)
15
16
17
18
: -B SIGNAL LINE
: BD/DVD AUDIO INPUT SIGNAL LINE
: iPod/AUX/MIC AUDIO INPUT SIGNAL LINE
R3103
R3107
R3109
15K
22K
22K
C3105
R3108
22K
0.1
C3103
C3107
33P
33P
5
6
7
8
5
6
7
8
+VCC
+VCC
IC3102
C0ABBB000189
OP-AMP
-VCC
-VCC
4
3
2
1
4
3
2
1
C3104
C3108
33P
33P
C3106
0.1
R3110
R3111
10K
10K
R3106
15K
R3120
C3118
C3124
22K
0.039
0.039
R3117
R3121
C3121
22K
22K
0.1
C3123
0.022
5
6
7
8
5
6
7
8
+VCC
+VCC
IC3105
C0ABBB000189
OP-AMP
-VCC
-VCC
4
3
2
1
4
3
2
1
R3122
47K
C3120
C3125
C3126
C3122
1000P
R3119
1000P
1000P
R3123
0.1
22K
22K
19
20
21
: iPod VIDEO INPUT SIGNAL LINE
TO MAIN
SECTION (2/8)
C3112
4700P
R3112
10K
C3109
R3113
10K
0.1
C3111
2200P
5
6
7
8
+VCC
IC3103
C0ABBB000189
OP-AMP
-VCC
4
3
2
1
R3114
39K
C3113
C3114
C3110
0.022
0.022
0.1
R3115
22K
R3124
10K
R3127
R3132
10K
10K
R3125
10K
R3126
10K
C3127
0.1
C3129
33P
5
6
7
8
+VCC
IC3106
C0ABBB000189
OP-AMP
-VCC
4
3
2
1
C3130
R3133
33P
10K
C3128
0.1
R3128
10K
R3129
10K
R3130
10K
R3131
10K
22
23
24
96
: AUDIO OUTPUT SIGNAL LINE
: FM SIGNAL LINE
R3171
10K
C3173
33P
C3171
0.1
5
6
7
8
+VCC
IC3107
C0ABBB000189
OP-AMP
-VCC
C3172
0.1
4
3
2
1
C3174
33P
R3172
10K
TO MAIN
SECTION (7/8)
1/8
2/8
3/8
4/8
5/8
6/8
7/8
8/8
SA-BT300PX MAIN CIRCUIT
25
26
27
P1
1
2
28

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