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Tuner, Power Button & Setup Mic Circuit - Panasonic SA-BT300PX Service Manual

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16.3. Tuner, Power Button & Setup Mic Circuit
1
2
3
SCHEMATIC DIAGRAM - 32
A
C C
TUNER CIRCUIT
CN6351
10
AGND
1
L6351
J0JBC0000014
A9V
2
R6353
100
B
FM_DET
3
TO
R6352
100
B
TU_R
4
MAIN CIRCUIT
R6354
100
TU_ST
5
(CN801)
R6351
100
TU_L
6
IN SCHEMATIC
R6355
100
7
TU_SD
DIAGRAM - 27
R6356
100
TU_SDA
8
R6357
100
TU_SCLK
9
AGND
10
1
K6301
0
C
F
SETUP MIC CIRCUIT
L6502
JK6501
J0JBC0000019
1
D
5
R6519
C6514
6.8K
0.01
4
SETUP MIC
3
L6503
J0JBC0000019
2
6
L6501
J0JBC0000019
7
E
C6504
C6501
0.01
0.01
F
G
H
1
2
3
4
5
6
: +B SIGNAL LINE
: FM SIGNAL LINE
C6354
1
G2
G3
10
GND
9
A9V
8
NC
7
TU_R
Z6351*
J3CCBB000010
6
TU_ST
5
TU_L
TUNER PACK
4
TU_SD
3
TU_SDA
2
TU_SCLK
1
SELECT
G1
: +B SIGNAL LINE
: -B SIGNAL LINE
: MIC AUDIO INPUT SIGNAL LINE
C6502
1
C6503
R6508
0.01
2.2K
Q6502
B1ADCE000012
MUTING
K6501
R6504
0
10K
C6513
R6505
R6506
C6507
R6509
1
180K
1K
1
22K
R6517
10K
C6506
C6505
15P
1
1
2
3
4
Q6504
V-
B1GDCFGA0018
IC6501
MUTING CONTROL
C0ABBB000125
OP-AMP
V+
8
7
6
5
R6512
10K
C6511
150P
D6502
R6502
C6510
R6515
MA2J1110GL
100
1
100K
Q6501
B1ABEB000002
MUTING
R6503
C6512
C6509
47K
10
0.1
4
5
6
7
8
9
E
POWER BUTTON CIRCUIT
R6102
1.2K
D
TO
CN6101
S6101
S6102
PANEL CIRCUIT
POWER
OPEN/CLOSE
KEY1
1
(CN6001)
DGND
2
IN SCHEMATIC
NC
3
DIAGRAM - 31
CN6501
1
7
AGND
6
MIC_MUTE
MIC_OUT
5
4
+7V
-7V
3
R6507
MIC_DET
3.3K
2
1
DGND
7
R6510
2.2K
R6516
1.8K
R6518
4.7K
Q6503
B1GDCFGA0018
MUTING CONTROL
R6514
56K
R6511
2.2K
R6513
C6508
27K
1
7
8
9
100
10
11
12
B
TO
MAIN CIRCUIT
(CN501)
IN SCHEMATIC
DIAGRAM - 25
SA-BT300PX TUNER / POWER BUTTON / SETUP
10
11
12
13
14
A
B
C
D
E
F
G
MIC CIRCUIT
H
13
14

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