Sony MEX-BT3900U Manual de servicio - Página 29

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Sony MEX-BT3900U Manual de servicio
5-9.

SCHEMATIC DIAGRAM - KEY Board -

1
2
3
KEY BOARD
A
FB902
FB901
J901
AUX
R905
0
FB903
B
CN901
20P
USB_GND
1
USB_VBUS
2
D-
3
D+
4
GND
5
KEY_GND
6
AUX_L
7
C
AUX_R
8
9
AUX_GND
MAIN
BOARD
A
RE_0
10
(3/3)
RE_1
11
CN102
KEY_1
12
(Page 27)
KEY_0
13
R995
1k
SIRCS
14
LCD_DATA
15
LCD_CE
16
LCD_CLK
17
D
ILL(FP+B)
18
PANEL_SW
19
GND
20
E
5
CN902
4P
GND-USB
D+
7
D–
VBUS-USB
6
F
G
H
I
J
MEX-BT39UW/BT3900U/BT3950U
• See page 30 for IC Block Diagrams.
4
5
6
LED913
LED912
CL-197HB1E-D-T
SML-D12V8WT86SN
SEEK–
SEEK–
.
.
m
m
C915
R901
R927
R902
1000p
1k
470
1k
C916
LED939
LED940
1000p
SL-194S-WS-SD-T
SL-194S-WS-SD-T
MODE
MODE
C912
R903
R912
0.1
1.2k
1.2k
R977
R935
R936
1.5k
470
1.5k
LED911
LED910
CL-197HB1E-D-T
SML-D12V8WT86SN
SEEK+
SEEK+
M
M
>
>
DATA
CE
CLK
R979
470
R987
470
R941
R942
R949
R978
R989
180
820
180
820
560
R943
R976
R951
R994
180
820
180
820
VDR906
VDR908
R999
10
R980
R983
R952
R954
2.2k
1k
820
470
R981
R984
R953
R955
R956
820
1.8k
1.2k
470
820
RE901
ROTARY ENCODER
R982
R985
R957
PUSH ENTER/
820
1.8k
820
SEL/
(VOLUME)
R944
10
7
8
9
R986
100
5
3
1
LSW905
Z
SCRL
DSPL
6
4
2
R920
S901
820
R960
R962
R938
180
150
R928
820
820
R961
R963
OFF
150
180
SOURCE
5
3
1
LSW906
R921
PAUSE
S902
1k
6
6
4
2
SEEK+
R929
1k
M
>
R948
1.5k
5
3
1
LSW907
R922
MIC/ZAP
S903
1k
5
R974
R972
6
4
2
820
180
R975
R973
R930
820
180
1k
/MODE
R923
S904
5
3
1
1.2k
LSW908
ALBUM +
4
6
4
2
SEEK–
.
m
R931
1.2k
R996
820
R924
S905
5
3
1
1.5k
LSW909
ALBUM –
3
6
4
2
R990
R965
R966
R932
1k
150
1.5k
180
R925
S906
1.8k
5
3
1
LSW910
SHUF
R991
1.2k
2
BT
6
4
2
R926
S907
2.2k
R964
R967
180
150
5
3
1
LSW911
REP
1
6
4
2
R933
1.8k
R968
R970
R934
220
2.2k
470
LSW912
BT39UW/BT3900U:
5
3
1
CAT
US, CND
PTY
R958
BT3900U:
820
PTY
AEP, RU, UK
6
4
2
AF/TA
(BT3950U)
PTY
R959
820
R969
R971
470
220
D921
RKZ6.8B2KGP1
29
29
MEX-BT39UW/BT3900U/BT3950U
10
11
12
R940
R906
150
150
5.2
1
VCC
4.7
3
OUT
2
GND
IC902
IC902
PNA4813M01S0
REMOTE CONTROL
SIGNAL RECEIVER
48
47
46
45
44
R908
120
S[4]
2.6
SEG4
49
S[3]
2.6
SEG3
50
COM[4]
2.6
COM4
51
COM[3]
2.6
COM3
52
D902
R909
C906
COM[2]
2.6
COM2
RKZ5.1B2KGP1
53
120
0.1
COM[1]
2.6
COM1
54
S[2]
2.6
SEG2
55
C903
0.1
5.2
R910
VDD
56
120
C902
0.1
3.5
VDD1
57
C901
0.1
1.8
VDD2
58
VSS
59
C904
0.47
S[1]
2.6
SEG52
60
2.6
INH
61
CE
R915
100
0
LCD_CE
62
CLK
R916
100
3.2
LCD_CLK
1
63
DATA
R917
100
3
LCD_DATA
64
C911
100p
C910
100p
C909
100p
IC B/D
1
2
3
4
5
Q901
RT1N140C-TP-1
0.1
LCD BACK LIGHT
DIMMER CONTROL
R911
5.2
1.5k
R998
0
0
Q904
Q903
RT6N140C-TP-1
RT6N140C-TP-1
LED DRIVER
8.9
LED DRIVER
5.2
0
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
Note: Refer to the servicing notes "NOTE FOR REPLACEMENT OF
THE USB CONNECTOR (CN902) AND THE AUX JACK (J901)"
(See page 5), if replacing the Ref. No. CN902 and the Ref. No. J901.
13
14
43
42
41
40
39
38
37
36
35
34
33
2.6
S[21]
32
SEG21
S[22]
2.6
SEG22
31
2.6
S[23]
SEG23
30
2.6
S[24]
SEG24
29
2.6
S[25]
SEG25
28
2.6
S[26]
SEG26
27
IC901
S[27]
2.6
SEG27
26
2.6
S[28]
IC901
25
SEG28
S[29]
LC75829PWH-US-H
2.6
SEG29
24
LCD DRIVER,LED CONTROL
2.6
S[30]
SEG30
23
2.6
S[31]
SEG31
22
2.6
S[32]
SEG32
21
2.6
S[33]
20
SEG33
S[34]
2.6
SEG34
19
2.6
S[35]
SEG35
18
2.6
S[36]
SEG36
17
6
7
8
9 10 11 12 13 14 15 16
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
LCD901
LIQUID CRYSTAL DISPLAY PANEL