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Panasonic SA-BT300PX Service Manual Page 95

Blu-ray disc home theater sound system.
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SCHEMATIC DIAGRAM - 27
I
B
MAIN CIRCUIT
: +B SIGNAL LINE
J
K
CLIPDET
A-7V
R536
2.2K
AGND
R540
R539
47K
22K
FL_OUT
C523
4
1
-VCC
L
5
R538
1K
R537
4.7K
M
C2177
R2175
50V1
1.8K
FLVOLOUT
R2172
1.8K
QR2203
B1GDCFGA0018
MUTING CONTROL
R2271
56K
N
C2171
R2171
50V4.7
27K
A-7V
C2277
R2275
50V1
1.8K
FRVOLOUT
AGND
O
P
1
2
3
: -B SIGNAL LINE
: BD/DVD AUDIO INPUT SIGNAL LINE
SBL_OUT
SBL_VOLOUT
R535
C521
6.8K
22P
D501
R533
R531
820K
MA2J1110GL 1K
AGND
3
2
1
C518
R530
0.1
820K
IC501
C0ABBB000189
OP-AMP
SBR_VOLOUT
+VCC
6
7
8
SBR_OUT
D500
C520
MAZ8051GML
0.01
R534
R532
3.9K
470
C2179
47P
C2194
4.7
R2173
27K
R2174
C2178
R2176
R2178
39
R2187
3.9K
100P
22K
3.3K
C2180
0.1
4
3
5
6
7
8
+VCC
5
2
R2170
R2270
IC2102
2.2K
2.2K
C0ABBB000125
6
1
OP-AMP
Q2101
-VCC
B1GFGCAA0001
R2274
4
3
2
1
3.9K
MUTING
C2294
R2278
39
4.7
C2279
R2273
27K
47P
C2278
C2280
100P
R2288
3.3K
0.1
R2276
22K
4
5
6
: iPod/AUX/MIC AUDIO INPUT SIGNAL LINE
: iPod VIDEO INPUT SIGNAL LINE
C379
0.018
C377
1
R379
R381
1.5K
5.6K
R375
R377
2.2K
39K
C371
R371
R373
R383
C233
1
0
27K
1K
1
SBL_WLOUT
C381
C373
C375
0.1
47P
10P
A-7V
4
3
2
1
-VCC
IC303
C0ABBB000189
OP-AMP
+VCC
5
6
7
8
C372
R372
C374
C376
R384
C231
1
0
47P
10P
1K
1
SBR_WLOUT
R374
27K
R376
R378
R382
R380
C378
2.2K
39K
5.6K
1.5K
1
C382
0.1
C380
0.018
A+7V
R2179
R2180
18
18
HPOUTL
R2177
10
4
3
4
3
C2181
1000P
5
2
5
2
6
1
6
1
C2281
Q2102
Q2103
1000P
B1GFGCAA0001
B1GFGCAA0001
R2277
MUTING
MUTING
10
R2189
R2185
2.2K
R2289
2.2K
R2285
2.2K
2.2K
R2279
R2280
18
18
HPOUTR
R2216
R2116
1K
1K
FLFIN
FRFIN
7
8
9
95
: AUDIO OUTPUT SIGNAL LINE
: FM SIGNAL LINE
TO MAIN
SECTION (1/8)
CN503
FL_OUT
1
22
FRONT L
AGND
21
AGND
FR_OUT
20
FRONT R
19
AGND
SW_OUT
18
SUBWOOFER
17
AGND
SL_OUT
SURROUND L
16
15
AGND
SR_OUT
J
14
SURROUND R
TO
AGND
13
D-AMP CIRCUIT
CNT_OUT
12
CENTER
MUTES
(CN8501)
R201
56K
11
MUTE_S (MODE 1)
IN SCHEMATIC
MUTEF
R202
56K
10
MUTE_F (MODE 2)
DIAGRAM - 34
PWBPF
9
FHOP
PVCONT
8
PVCONT
AMPDCDET
R203
100
7
DC_DET
NPMUTE
MOD_DA
6
5
AGND
SBL_OUT
4
SURROUND BACK L
SBR_OUT
3
SURROUND BACK R
A+7V
2
A+7V
A-7V
1
A-7V
22
CN801
10
1
AGND
I2CSCL
R845
220
2
TU_SCLK
I2CSDA
R846
220
3
TU_SDA
C
TUSD
R847
220
TO
4
TU_SD
TUNERL
R827
1K
TUNER CIRCUIT
5
TU_L
TUST
(CN6351)
6
TU_ST
TUNERR
R826
1K
IN SCHEMATIC
TU_R
7
R848
560
DIAGRAM - 32
8
FM_DET
A9V
9
A9V
10
AGND
1
JK2001
R CH
4
AUXR
R820
15K
3
AUX(TV)
AUXL
R821
15K
L CH
2
C822
C824
220P
220P
AGND
1
1/8
2/8
3/8
4/8
5/8
6/8
7/8
8/8
SA-BT300PX MAIN CIRCUIT
10
11
12
P1
TO MAIN
SECTION (6/8)
13
14

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