Sony MEX-BT3807U Service Manual - Page 22
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MEX-BT38UW/BT3800U/BT3807U/BT3850U
4-2.
BLOCK DIAGRAM - AUDIO Section (2/2) -
J901 (1/2)
L
BUS AUDIO
IN
R
J901
AUX
R-CH
J1
L6
FM MIX
(ANTENNA IN)
SYSTEM CONTROLLER
IC501 (2/3)
VSM
37
I2C_SIO
22
I2C_SCK
23
ZAPPIN_BEEP
98
XDIAG
69
AMP_STB
68
100
BEEP
MEX-BT38UW/BT3800U/BT3807U/BT3850U
ATT
ELECTRICAL VOLUME, INPUT SELECT
A
IC401
(Page 21)
CD-L
6
CD_LCH
BT-L
12
BT_LCH
2
BUS_LCH
R-CH
9
AUX_LCH
PLL
IC1
4
FMIN1
LOUT
8
4
TU_LCH
3
FMIN2
ROUT
9
R-CH
ZAP_BEEP
13
1
AMRFIN
16
ZAP_BEEP
32
AMSELOUT2
31
AMSELOUT1
29
AMSELIN2
28
AMSELIN1
13
MPXOUT
12
MPXIN
14
RSSI
XTAL2
15
X1
19
SDA
4MHz
18
SCL
XTAL1
16
R-CH
MUTING
MUTING
MUTING
Q480
Q485
Q483
OUT_FLCH 34
OUT_RLCH 32
OUT_SLCH 30
38 37
22
22
J901 (2/2)
R-CH
R-CH
POWER AMP
IC301 (1/2)
CN701 (1/2)
1
OUT-FL+ 5
FL+
12
IN-FL
9
OUT-FL- 3
FL–
4
FR+
R-CH
12
FR–
2
OUT-RL+ 9
RL+
11
IN-RL
10
OUT-RL- 7
RL–
3
RR+
R-CH
11
RR–
2 4
25 22 16
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: AUDIO
: CD PLAY
: TUNER
: AUX IN
: BUS AUDIO IN
L
AUDIO OUT
FRONT
R
L
AUDIO OUT
REAR
R
J401
SUB OUT
(MONO)