Sony MEX-BT31PW Service Manual page 69

2-5. SCHEMATIC DIAGRAM - MAIN Board (2/5) -
1 2 3
MAIN BOARD (2/5)
A
1
13.8
2
3
1
4
5 0
MAIN
6
BOARD
(1/5) 7
B
(Page 6)
8
9
10
0
0
18
C
20
21
4
22
24
MAIN
BOARD
25
(3/5)
26
(Page 8)
27
23
D
89
E
F
R407
220
C413
10
16V
R466
0
R442
G
0
H
I
L431
2.2uH
J
I2C_SDA
I2C_SCL
K
8
DM
DP
MAIN
BOARD
BUS1
(5/5)
(Page 10)
L
MEX-BT31PW/BT3100P/BT3100U/BT3150U/BT3153U
4 5 6
Q407
LTA014EUBFS8TL
13.8
Q407 - 409
MUTING CONTROL
(Suffix-22)
Q408
LTA014EUBFS8TL
13.8
0
Q409
LTC014EUBFS8TL
Q401 Q402 Q403 Q404
LTC014TUBFS8TL LTC014TUBFS8TL LTC014TUBFS8TL LTC014TUBFS8TL
0 0 0 0
0 0 0 0
R426
0
JL011
R409 R422 R424 R411
10k 10k 10k 10k
C480 C481
47p 47p
R421 R423 R410 R404
220 220 220 220
R402
C424 C425 C420 C422 220
10 10 10 2.2
16V 16V 16V IC401
C410
R465 R464 R463 R462 2.2
ELECTRICAL VOLUME, INPUT SELECTOR
0 0 0 0
IC401
BD3467FV-E2
R490
R443 R444 R445 R446 220 FB404
4.2
0 0 0 0
AU_OUT_SL
40
R491 BUS_LCH
FB405
220 4.2
AU_OUT_SR
39
BUS_RCH
R492
FB406
220
4.2
AU_OUT_RL
38
R493 NCO
220 FB407
4.2
AU_OUT_RR
37
NCO
R494
FB408
220
4.2
AU_OUT_FL
36
TU_LCH
R495
220 FB410
4.2
AU_OUT_FR
35
TU_GND
FB411
AU_FR_CH 4.2
AU_IN_FR
34
TU_RCH
FB412
AU_FL_CH 4.2
AU_IN_FL
33
AUX_LCH
FB413
AU_RR_CH 4.2
AU_IN_RR
32
AUX_GND
FB414
AU_RL_CH 4.2
AU_IN_RL
31
AUX_RCH
FB415
AU_SUB_CH 4.2
AU_IN_SUB
30
XM_LCH
NCO
29
XM_GND
AU_IN_LCH 4.2
AU_OUT_LCH
28
XM_RCH
AU_IN_RCH 4.2
AU_OUT_RCH
27
FP1
8.4
VCC(8.5V)
26
FN1
FB416
4.2
FIL
25
R432 FN2
10k
GND
24
FP2
3.3
I2C_SDA
23
NCO
3.3
I2C_SCL
22
NCO
8.4
MUTE
21
NCO
C414 C419
0.1 10
7 8 9 10
L1
4.7uH
Q405 Q406
LTC014TUBFS8TL LTC014TUBFS8TL
0 0
0 0
R405 R403
47k 47k
Q401 - 406
MUTING
AU_FR_CH
1 AU_FL_CH
AU_RR_CH
2
AU_RL_CH
3 AU_SUB_CH
AU_IN_LCH
4
AU_IN_RCH
4.2
5
C15
1
4.2
6
4.2
7
C436
1
4.2
8
C438
4.2 1
9
4.2
10
C437
4.2 XM_LCH
1 R417 R415
11
R418 12k 1k
C450
12k
1
4.2
12
C451
2.2
4.2 XM_RCH
13
C452
4.2 LCH_P
1
14
C431
1 (BT3100P)
4.2 LCH_N
15
C432
R416
4.2 1 RCH_N
1k
16
C434
1
4.2 RCH_P
17
C435 C440 C439
FB420
1000p 1000p
1
18
19
20
R419
2.2k
7 7
MEX-BT31PW/BT3100P/BT3100U/BT3150U/BT3153U
11 12 13
R406 R470
0 0
R471
0
J402
4P
C412 C421 C426 C423
47p 47p 47p 47p
R469
0
R468
0
C457 C446
1000p 1000p
(ANTENNA IN)
(BT3100U/BT3150U/BT3153U)
R19
0
FB19
CN01
TUX-DSP02
(TUNER UNIT)
(BT31PW/BT3100P)
0
RF_ANT_IN
1
RF_GND
2
4.2
AUDIO_OUT_L
3
4.2
AUDIO_OUT_R
4
R13 1k 3.3
RSTN
5
R10 0
2.5
SCL
6
2.3
SDA
7
8.4
+8.5V
8
POWER_GND
9
C10 C11
1 47
16V
CAM002
AU_FR_CH
AU_FL_CH
AU_RR_CH
AU_RL_CH
AU_SUB_CH
AU_IN_LCH
AU_IN_RCH
AU_GND
C499
1
D114
R433
RKZ6.8B2KGP1
0
D115
R434
RKZ6.8B2KGP1
0
CN102
C101
20P
0.001
CL061
1 USB_GND
CL063
2 USB_VBUS
CL066
C100
3 GND
0.1
CL067
4 KEY_GND
CL068
5 AUX_L
CL069
6 AUX_R
CL070
C442
7 AUX_GND
0.1
RE0 CL071
8 RE_0
CL072
RE1
9 RE_1
CL073
KEY1
10 KEY_1
CL074
KEY0
11 KEY_0
SIRCS CL075
12 SIRCS
CL076
LCD_DATA
13 LCD_DATA
CL077
LCD_CE
14 LCD_CE
LCD_CLK CL078
R116
15 LCD_CLK
0
CL079
16 ILL
CL081
NOSE_SW
17 PANEL_SW
CL064
18 D–
CL065
19 D+
R102
20 GND
0 C104
47p
C158 C103
C201
1 0.1
1
C105
CAM003
1000p
Note: Refer to "MAIN AND KEY BOARDS DISCRIMINATION" on page 2
for how to distinguish Suffi x-21 and Suffi x-22 of the MAIN board.
14
L
REAR/SUB
AUDIO OUT
R
L
FRONT
AUDIO OUT
R
J1
5
MAIN
BOARD
(4/5)
(Page 9)
A
KEY
BOARD
CN901
(Page 12)