Schematic Diagram - Key Board - Sony MEX-BT2707E Service Manual

Q Q
3 7 6 3 1 5 1 5 0
4-6.

SCHEMATIC DIAGRAM - KEY Board -

CN901
15P
PANEL
+B
CLK-LCD
CE-LCD
DATA-LCD
R974 100
SIRCS
KEY-0
KEY-1
RE-1
RE-0
AUX-GND
(Page
27) AUX-RCH
AUX-LCH
KEY-DND
D-GND
T E
L 1 3 9 4 2 2 9 6 5 1 3
J901
AUX
C998
1000p
w w w
MEX-BT2700/BT2707E/BT2750
• See page 30 for IC Block Diagrams.
R931 R1941
220 470
LED944
LSW912(2/2)
CL197HB1E-D-T
R932
220
DISC SLOT DSPL
ILLUMINATION SCRL
R933
220 R1942
1k
LED941
LED931
CL197HB1E-D-T
NESW505CT- C990
0.1
(LCD BACK LIGHT)
D903
MAZ8180GMLS0
R1943
1k
CLK
CE
C991
DATA
0.1
D994 MAZ8068GMLS0
D993 MAZ8068GMLS0
D991 MAZ8068GMLS0
R1944 R942
D986 MAZ8068GMLS0
470 680
D985 MAZ8068GMLS0
Q931
RT1N140C-TP-1
R992
DIMMER SWITCH 0
R934
1.2k
D992
MAZ8068GMLS0
C995
0.1
C996
0.1
C997
1000p
R901
820
LSW901(1/2) LSW902(1/2) LSW903(1/2)
OFF SOURCE
R907 R908 R909 R910
820 1k 1k 1.2k
LSW913(1/2) LSW914(1/2)
LSW906(1/2) LSW907(1/2)
SEEK-
LSW904(1/2) LSW905(1/2)
-ALBUM ALBUM+
SEEK+ MODE 1
CAT
BT2700:US,CND/
BTM
BT2750:MX
PTY
BT2700:AEP,IT,UK
AF/TA
/BT2707E
BTM
(BT2750:E,EA,IND)
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http://www.xiaoyu163.com
R943 R945 R947 R949
470 390 680 390
LSW905(2/2)
CAT
BTM
LSW913(2/2) LSW914(2/2)
BT2700:US,CND/
SEEK-
BT2750:MX LSW909(2/2)
SEEK+ SHUF
PTY
4
AF/TA
BT
BT2700:AEP,IT,UK
/BT2707E
LSW902(2/2) LSW908(2/2)
BTM
OFF
REP
(BT2750:E,EA,IND)
3
R950 R951
680 220
LSW901(2/2) LSW903(2/2) LSW904(2/2)
SOURCE MODE
LSW906(2/2) LSW907(2/2)
-ALBUM ALBUM+
R944 R946 R948 1 2
330 680 390
Q932
RT1N436C-TP-1
LED DRIVE SWITCH
Q Q
3 7 6
C999 1000p
C922
1000p
RE901
ROTARY ENCODER
PUSH SELECT/
R922 R921
0 0
(VOLUME)
R902 R903 R904
1k 1k 1.2k
S901
SKRPACE010
BT
R911 R912 R913 R914 R915
1.5k 1.8k 2.2k 3.3k 3.9k
LSW908(1/2) LSW909(1/2) LSW910(1/2) LSW911(1/2)
REP SHUF MIC PAUSE
2 3 4 5 6
u 1 6 3
29 29
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2 4
8 9 9
LSW910(2/2) R981 R975
150 100
MIC
REMOTE CONTROL
5
RECEIVER
R982
150 IC971
IC RS-470
C971
0.1
VCC GND1
S4
OUT
S3
R953
GND2
COM4
390
COM3
COM2
COM1
R954
680 S2
R987 C981
1M 0.1
R984 1k
R985 1k
LSW911(2/2)
PAUSE C983 C984 R986
S1
0.1 0.1 1k
R952 6
180
CE R977 100
CLK R978 100
C986
0.47 DATA
R979
100
3 1 5 1 5 0 8 9 2
LED951
SL-194S-WS-SD
C921
1000p
R971
180
LED951-953
R905
1.5k LED952
SL-194S-WS-SD PUSH SELECT/
(VOLUME)
LED953
SL-194S-WS-SD
LSW912(1/2)
R973
DSPL 180 Q995
2SC3052
SCRL
R990
LED DRIVE
33k
LCD901
LIQUID CRYSTAL DISPLAY
Note: Refer to the servicing notes "NOTE FOR REPLACEMENT OF THE
AUX JACK (J901)" (See page 5), if replacing the Ref. No. J901.
m
c o
.
MEX-BT2700/BT2707E/BT2750
2
8 9 9
S21
S4 S21
S22
S3 S22
S23
COM4 S23
S24
COM3 S24
S25
COM2 S25
S26
COM1 S26
S27
S2 LIQUID CRYSTAL DISPLAY DRIVER S27
S28
VDD S28
S29
VDD1 IC901 S29
LC75826WH-US-E
S30
VDD2 S30
S31
VSS S31
S32
OSC S32
S33
INH S33
S34
CE S34
S35
CL S35
S36
DI S36
4 9 8 2 9 9