Panasonic SA-BT300PX Service Manual page 95

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