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Printed Wiring Board - Key Board - Sony MEX-BT2707E Service Manual

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MEX-BT2700/BT2707E/BT2750
Q Q
3 7 6 3 1 5 1 5 0
4-5.

PRINTED WIRING BOARD - KEY Board -

• Semiconductor
1
Location
Ref. No. Location
D903
F-8
D981
F-8
A
KEY BOARD
D982
E-7
D985
F-9
LSW902
A1
A2
D986
F-9
OFF
K1
K2
D991
F-9
S1
S2
D992
F-9
D993
F-9
D994
F-9
C990
A1
A2
IC901
F-6
K1
K2
B
IC971
C-11
SEEK+
S1
S2
LSW913
LED931 B-10
LED941 B-2
LSW912
LED944 B-6
A1
A2
LED951 B-3
DSPL
K1
K2
SCRL
LED952 C-4
S1
S2
R904
LED953 C-3
R905
C
Q931
F-10
Q932
F-10
A1
Q995
F-3
K1
S1
SEEK–
D
T E
L
1 3 9 4 2 2 9 6 5 1 3
KEY BOARD
E
R901
F
R943
G
w w w
MEX-BT2700/BT2707E/BT2750
• See page 23 for Circuit Boards Location.
2
3
4
(COMPONENT SIDE)
LED951-953
PUSH SELECT /
(VOLUME)
LSW903
SOURCE
A1
A2
R971
K1
K2
R1942
R902
S1
S2
LED941, S901
R1943
BT
A
R946
R944
K
A
A
K
S901
K
A1
A2
K1
K2
R908
A2
S1
S2
K2
LSW904
S2
(BT2700: US, CND/BT2750: MX)
MODE
(BT2700: AEP, IT, UK/BT2707E)
(BT2750: E, EA, IND)
(CONDUCTOR SIDE)
R973
R909
R948
3
4
5
R922
R990
R921
R1944
Q995
RE901
C999
R903
ROTARY ENCODER
C921
R945
C922
2
RE901
1
PUSH SELECT /
R1941
(VOLUME)
x
a o
.
i
http://www.xiaoyu163.com
: Uses unleaded solder.
5
6
LSW901 - 914
A1
A2
K1
K2
S1
S2
LED944
A
K
1
LED944
DISC SLOT
ILLUMINATION
LIQUID CRYSTAL DISPLAY
LSW905
LSW906
LSW907
A1
A2
A1
A2
A1
A2
K1
K2
K1
K2
K1
K2
S1
S2
S1
S2
S1
S2
CAT
–ALBUM
ALBUM+
BTM
1
2
PTY
AF/TA
Q
Q
BTM
3
7
6
R912
R911
R950
R949
R910
R952
R992
R979
R985
R978
C986
R977
R987
IC901
u 1 6 3
y
28
28
http://www.xiaoyu163.com
2
4
8
9
9
7
8
9
LED931, 941, 944,
LED951–953
K
A
LCD901
LSW908
LSW909
LSW910
A1
A2
A1
A2
A1
A2
R953
R954
K1
K2
K1
K2
K1
K2
S1
S2
S1
S2
S1
S2
REP
SHUF
MIC
3
4
5
3
1
5
1
5
0
8
9
(Page 24)
A
MAIN BOARD
CN701
R914
R913
R951
CN901
D982
D981
R974
R982
R981
C996
C995
D903
Note: Refer to the servicing notes "NOTE FOR REPLACEMENT OF THE
m
AUX JACK (J901)" (See page 5), if replacing the Ref. No. J901.
c o
.
2
8
9
9
10
11
LSW901
A1
A2
K1
K2
S1
S2
R942
C991
52
LED931
(LCD BACK LIGHT)
IC971
2
1
C971
3
4
LSW911
R975
A1
A2
R915
K1
K2
11
1-878-799-
S1
S2
(11)
PAUSE
6
2
4
9
8
2
9
9
J901
AUX
FB903
Q931
C998
R934
Q932
1-878-799-
11
(11)

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