Read Sony CDX-A250 / CDX-A250EE Service Manual online
26
26
CDX-A250/A250EE
CDX-A250/A250EE
3-12. PRINTED WIRING BOARDS — KEY SECTION — • Refer to page 17 for Circuit Boards Location.
: Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
BLK
R
G
GND
R
L
L
BRN
BLU
BLK
BRN
BLU
1-868-120- (11)
11
1-868-121- (11)
11
1-868-121- (11)
11
1-868-120-
(11)
11
M >
SEEK+
LED906,S906
LED908,S908
LED907,S907
4/SHUF
PUSH DIAL SELECT
(VOLUME)
RE901
LSW915
5
LSW914
AUX
J901
3/REP
LSW916
6/PAUSE
LSW913
AF/TA
SCRL
LSW910
IC971
PTY
BTM
LSW911
SENS/BTM
SENS
(A250:AEP,UK)
(A250:AEP,UK)
(EXCEPT A250:AEP,UK)
(EXCEPT A250:AEP,UK)
(A250:AEP,UK)
(EXCEPT A250:AEP,UK)
LSW912
1/–
DSPL/DIM
MODE
LED909,S909
EQ3
LED903,S903
SOURCE
LSW918
2/+
GP/ALBM
LSW917
LED901,
S901
LED951
(CD SLOT)
LED931,932
(LCD BACK LIGHT)
LCD901
LIQUID CRYSTAL DISPLAY PANEL
B
MAIN BOARD
CN701
. m
SEEK–
LED904,S904
LED941–946
(RING ILLUMINATION)
LED902,
S902
OFF
LED952
(CD SLOT)
R961
R964
R965
R953
R954
R943
R947
R948
R958
IC971
R966
R967
LED951
LED945
LED942
LED943
LED952
S902
LED902
S904
LED904
S909
LED909
S903
LED903
LED907
S907
S908
LED908
S906
LED906
LED946
LED944
LED941
S901
LED901
LED932
LED931
R926
R968
LSW918
LSW917
LSW915
LSW914
LSW916
LSW913
LSW910
LSW911
LSW912
1
28
56
29
1
4
2
3
R901
R972
C971
R979
R981
R982
D981
C981
R984
R985
R986
C983
C984
C985
D982
FMB4
FMB3
R941
R942
R931
R932
R933
R934
Q931
D903
R974
R976
IC901
R906
R907
R909
R910
R911
R977
R978
R987
Q932
R902
R903
R904
R915
R912
R916
R914
R913
R908
D901
R905
R950
R949
C986
C921
C922
R959
R960
R944
R923
R924
R925
R935
CN901
R922
R921
R940
RE901
4
5
1
3
2
FB901
FB902
FB903
(Page 22)
Ref. No.
Location
• Semiconductor
Location
D901
I-10
D903
H-10
D981
H-7
D982
H-8
IC901
H-9
IC971
C-3
LED901
A-12
LED902
A-2
LED903
C-3
LED904
B-5
LED906
B-8
LED907
C-8
LED908
B-8
LED909
B-5
LED931
C-12
LED932
B-12
LED941
B-7
LED942
C-7
LED943
C-7
LED944
C-6
LED945
C-6
LED946
B-6
LED951
A-11
LED952
A-2
Q931
I-12
Q932
H-12
Ver. 1.1
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