Schematic Diagram - Main Section (2/4) - Sony MEX-BT38UW Service Manual

MEX-BT38UW/BT3800U/BT3807U/BT3850U
4-7.

SCHEMATIC DIAGRAM - MAIN Section (2/4) -

1 2 3 4
MAIN BOARD (2/4)
A
B
CN810
2P
MIC801
MIC_IN 1
A-GND 2
C
J801
CN811
3P
MIC IN
D EXT_MIC_IN 1
A-GND 2
MIC_DETECT 3
BT3800UW/BT3800U:
E
US, CND/BT3850U: E
R1 R2
470k 470k
FB2
J1
C1 R16 L2
(ANTENNA IN)
1000p 0 2.2uH
F
L6
FM MIX
6 1
C6 R15
15p 0
2
4 3
FB1
C8
G
VR1
33p
BT3800UW/BT3800U:
(CHASSIS) US, CND/BT3850U: E R4
0
BT3800U: AEP, UK/
R5
BT3807U/BT3850U: EA
0
H
R18 R19
0 0
8
I
VSM
I2C_SCK
MAIN
BOARD
I2C_SIO
(4/4)
(Page 30)
8.5V
7
C14 C15
1 1
GND_1
MAIN
BOARD
TU_LCH
J
(3/4)
TU_RCH
(Page 29)
(CHASSIS)
MEX-BT38UW/BT3800U/BT3807U/BT3850U
• See page 33 for IC Block Diagrams.
5 6 7
D823
LRB751V-40T1G
BT3800U: AEP, UK/
R829
BT3807U/BT3850U: EA
1k
R835
IC1
IC B/D 0
FB3
PLL
IC1
TEF6617T/V1/S470.518
R3 C5 C823
C19
0 1000p 1000p
0 8 0.01
AMRFIN
1 32
AMSELOUT2
C20
0 8 0.01
R836
AMRFDEC
2 31
0
AMSELOUT1
C21
C12
3 1.3 1
0.22
FMIN2
3 30
AMIFAGC1
L7
560uH
3 0
FMIN1
4 29
AMSELIN2
L8
560uH
0
GNDRF
5 28
AMSELIN1
C22
C9
0.01
8
0.1 VCC2
6 27
C13 TEST
C23
2.2
0.01
0 2.3
AMRFAGC
7 26
PLLREF
C24
0.1
3.7 4.6
LOUT
8 25
PLL R11
4.7k
3.7 5.4
ROUT
9 24
VCODEC
C25
0.1
GNDAUD
10 23
R6 C16 GND
68k 0.47
0.5 8
AMIFAGC2
11 22
VCC1 R12
C17
C26
22
0.1 3.5 6.7
0.1
MPXIN
12 21
VREGSUP
3.7 3.8
MPXOUT
13 20
VREF
C27
0.8 3.1 0.1
RSSI
14 19
C18 SDA
R10
12p
33k 5.7 3.1
XTAL2
15 18
SCL
5.7
XTAL1
16 17
GNDD
X1
4MHz
R14
100
C28
47
16V
R13
BT3800U: AEP, UK/ L1
100
BT3807U/BT3850U: EA R17 3.3uH
0
C32
10p
FB4
(BT3800UW/BT3800U: US, CND/BT3850U: E)
D820
MAZ8068GMLS0 MAZ8068GMLS0
D821
MAZ8120GMLS0
8 9 10 11
0
0
Q820 Q821
RT1P141C-TP-1 RT1P141C-TP-1
0 0
0
Q820-822
B+ SWITCH
0
Q822
RT1N141C-TP-1
R831 R833
R837
2.2k 4.7k
3.3
R830
0
C830 C829 R834 C847
C828 4.7 4.7 1k C834 R881 1
1000p 0.1 22k
R838 R847 R885
100k 100k
IC B/D
IC812
MIC INPUT SELECT
IC812
TS5A3159DCKR
1.2 0
1 NO IN 6
0.5
2 5
GND V+
C838 R886
R832 1 3.9k
1.5 1.3
2.2k
3 4
NC COM
R826
R887
0
3.9k
Q823
RT1N141C-TP-1
0
SWITCH
3.3
C826 C812
4.7 4.7
C840
1
C822
1000p
C803
0.01
R825
4.7k
IC B/D
5 4
IC801
+3.3V REGULATOR
IC801
TK11133CSCL-G
1 2 3
Q803
RT1P141C-TP-1
0 3.3
3.3
Q802
RT1N141C-TP-1
0
Q802, 803
REGULATOR CONTROL
C801
0.1
C899 R801 C813
D824 1000p 10k 1000p
Note: When the BT board is replaced, it is necessary to confi rm operation. Refer to "BLUETOOTH FUNCTION
28 28
12 13 14 15
Q827
RT1P141C-TP-1
0
0
0
Q826, 827
B+ SWITCH
R849
0
R880 22k
R882
0
4 3 2 1
4.2
Q825
RT1P141C-TP-1
MIC AMP
4 3 2 1
IC813
0
MIC AMP,
4.2
NOISE FILTER
5 6 7 8
IC813
NJM4580V(TE2)
5 6 7 8
R889 R890
220k 220k
R892
1k
C882
0.01
R891
R884 C881
22k
100k 0.01
R883
0
0
3.3
Q824
RT1N141C-TP-1
MIC AMP
C845 C880
0.1 0.047
BT800
C804
BT_R
47
26 BT_AUDIO_R
16V
25 A-GND
BT_L
C807
24 BT_AUDIO_L
0.01
23 A-GND
22 VDD_8.5V
21 VDD_3.3V
D801
LBAT54ALT1G
20 GND
19 BT_RESET
18 BT_MFUNC
BT_OPRPOW
17
BT_POW_ON
16
R807 100
R803 R805 R806
BT_TEST2
15
100 100 100
BT_TEST1
14
R808
100
D802
LBAT54CLT1G
BT
BOARD
C806 C805
100 0.01
10V
CHECKING METHOD USING A CELLULAR PHONE" of the servicing notes (See page 6).
16 17 18
Q826
RT1N141C-TP-1
0
3.3
C883
0.1
IC814
MIC AMP
IC814
NJM4580V(TE2)
R893
0
R900
1k
4.2
Q862
SSM3J05FU
S
GAIN CONTROL
3.3
R899 R898
1k 0
3
24
25
MAIN
27
BOARD
28 (1/4)
(Page 27)
29
4
30
31
MAIN
32
BOARD
33 (4/4)
(Page
R800
34
0
30)
MIC_IN-
1
C809 0
MIC_IN+ 2
R815 100 BT_INT
BT_INT-HF 3
R809 100k R816 100 BT_CVC
BT_CVC 4
R817 100 BT_PLAY
BT_PLAY 5
R818 100 BT_ST0
BT_STATUS0 6
R810 100k R819 100 BT_ST1
BT_STATUS1 7
R811 100k R820 100 BT_ST2
BT_STATUS2 8
R812 100k R821 100
BT_ST3
BT_STATUS3 9
R813 100k R822 100
BT_MUTE
BT_MUTE
10
R823 100
BT_FR
5
BT_FR 11
R824 100
BT_FF
BT_FF 12 36
MAIN
GND 13 35
BOARD
(3/4)
(Page 29)
ANTENNA BOARD
(PATTERN ANTENNA)
CN1