5-12. Schematic Diagram - Key Board - Sony WX-850BT Service Manual

WX-850BT/900BT/900BTM
Ver. 1.1

5-12. SCHEMATIC DIAGRAM - KEY Board -

A
B
C
D
E
F
G
H
>01S
MAIN
BOARD
(2/4)
CN101
(Page 35)
I
J
K
L
WX-850BT/900BT/900BTM
• See page 41 for IC Block Diagrams.
1 2 3 4
KEY BOARD
1 2 3
LED901
SMLVN6RGB1U1
(KEY ILLUMINATION)
6 5 4
1 2 3
LED902
SMLVN6RGB1U1
(KEY ILLUMINATION)
6 5 4
R902 R914 R903 R915
27 10k 56 10k
6 1
R904
C E 120
5 2
B B
R905
10
4 3
E C
Q901
HN1C01FU 6
LED DRIVE
5
4
6 1
C E
5 2
B B
4 3
E C
Q902
HN1C01FU
LED DRIVE
R923 R924 R925 R926
33 120 56 82
C903
0.1
S919
(RESET)
R901
CN901
1k
22P
SW_RESET 22
GND 21
C901
SIRC 20
0.1
ILL(FP+B) 19
LCD_CLK
LCD_CLK 18
LCD_CE
LCD_CE 17
LCD_DATA
LCD_DATA 16
KEY_0 15
KEY_1 14
FFC2
RE_1 13
RE_0 12
KEY_GND 11
AUX_R 10
AUX_GND 9
AUX_L 8
D_GND 7
R1018
D+ 6 ROTARY ENCODER
D– 5
C906
PUSH ENTER/MENU/
0.1
USB_GND 4
USB_GND 3
USB_VBUS 2
USB_VBUS 1
L901
C926
10
GND-USB 4
CN902
D+
D– C925
10
VBUS-USB 1
R1018
0 (850BT/900BT: US, CND, IND/900BTM)
22 (900BT: AEP, UK, E, AUS)
FB903 FB901 FB902
J901
AUX
5 6 7 8
1 2 3
LED905
SMLVN6RGB1U1
(KEY ILLUMINATION)
6 5 4
R992
100
R978 R920 R977 R921 R991
100 10k 120 10k 82
R911 R979
6 1
120 68
C E
5 2
B B
R916 R912 R913
10k 82 33
4 3
E C
Q907
1 HN1C01FU 6 1
C E C E
LED DRIVE
2 5 2
B B B B
3 4 3
E C E C
Q910
Q903 6 1
HN1C01FU
HN1C01FU
C E
LED DRIVE LED DRIVE
5 2
B B
4 3
E C
Q909
HN1C01FU
LED DRIVE
R927 R928 R935 R936 R937 R938 R939
39 68 33 120 56 82 39
R948 R956
S901 S910
820 820
PAUSE
6
R949 R957
S902 S911
1k 1k
SOURCE MIC
OFF 5
R950 R958
S903 S912
1k 1k
SEEK+
4
R951 R959
S904 S913
1.2k 1.2k
MODE
3
RE901 R952 R960
S905 S914
1.5k 1.5k
SEEK– ALBUM
2
VOICE
(VOLUME)
5
R953 R961
4 S906 S915
1.8k 1.8k
2 ALBUM
1 1
3 PTY
7 6
R1017 R962
R969 S907 S916
2.2k 2.2k
0
MEGA CALL
BASS
S917
DSPL
SCRL
LCD901
LIQUID CRYSTAL DISPLAY
40 40
9 10 11 12
1 2 3
LED906
SMLVN6RGB1U1
(LCD BACK LIGHT)
6 5 4
1 2 3
LED915
SMLVN6RGB1U1
(LCD BACK LIGHT)
6 5 4
R990 R987 R1016
27 10k 120
R974
6 1
22
C E
5 2
B B
R922 R981 R989 R984
10k 10k 10 10k
4 3
E C
Q911
HN1C01FU 6 1
C E
LED DRIVE
5 2
B B
4 3
E C
Q913
6 1
HN1C01FU
C E
LED DRIVE
5 2
B B
4 3
E C
Q912
HN1C01FU
LED DRIVE
R940 R988 R980 R982 R983 R985 R986 C910
68 56 56 82 39 56 33
C918
R945 R946 R947
470 470 470
S[36] 2.6 17
SEG36
S[35] 2.6 18
SEG35
S[34] 2.6 19
SEG34
S[33] 2.6 20
SEG33
S[32] 2.6 21
SEG32
S[31] 2.6 22
SEG31
S[30] 2.6 23
SEG30
S[29] 2.6 24
SEG29
S[28] 2.6 25
SEG28
S[27] 2.6 26
SEG27
S[26] 2.6 27
SEG26
S[25] 2.6 28
SEG25
S[24] 2.6 29
SEG24
S[23] 2.6 30
SEG23
S[22] 2.6 31
SEG22
S[21] 2.6 32
SEG21
Note: When the CN902 and J901 are replaced, refer to "NOTE
FOR REPLACING OF THE USB CONNECTOR
(CN902) AND THE AUX JACK (J901)" on page 7.
13 14 15
R941
150
R942
150
IC902
REMOTE CONTROL RECEIVER
IC902
PNJ4813M01S0
R943
0
R944
0
C911 R1013 C913
0.1 1 100 1
C916
18p
C917
18p 18p
64 0
LCD_DATA
63 0
LCD_CLK
62 0
LCD_CE
61 5.2
INH
60 2.6 S[1]
SEG1
59
VSS
58 2.6 S[48]
IC901
SEG48
57 2.6 S[47]
SEG47
LCD DRIVER 56 5.2
VDD
IC901
55 2.6 S[2]
BU97510CKV-ME2
SEG2
54 2.6 COM[1]
COM1
53 2.6 COM[2]
COM2
52 2.6 COM[3]
COM3
51 2.6 COM[4]
COM4
50 2.6 S[3]
SEG3
49 2.6 S[4]
SEG4