Printed Wiring Board - Key Section - Sony CDX-GT40U Service Manual

4-10. PRINTED WIRING BOARD – KEY Section –
1 2
A
LED936,S903 S902
SEEK +
>
R946
M
S903 LED950
LED940
B
LED932,S904
S904 S906
LED954,S906
LED932
LED944
S905
LED933,934,S905 LED952
C
m
.
SEEK -
S907
D
LED952,S907
MODE
E
F
IC902
G
R944
H
R972
R948
I
CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
• : Uses unleaded solder.
3 4 5
LED950,S902
SOURCE
KEY BOARD (SIDE A)
/ OFF
LED938
R903
R970
R952
LED942
R990
LSW912
LED938,940,942 LSW912
(ILLUMINATION)
AF/TA/
(AEP, RU, UK)
PTY
(EXCEPT AEP, RU, UK)
KEY BOARD (SIDE B)
IC902
RE901
R927
R918
R919
RE901
PUSH ENTER/SELECT
6 7 8
52
LSW911 R984 LSW909
LSW910
LSW911 LSW910 LSW909
PTY 1 2 3
/ALBUM V /ALBUM v /REP
R996
R995 R994
C903
C901
C904
R976
R915
R904
64
1
Barcode
IC901
IFM6
Q901
R958
R910 16
17
IFM2
Note 1: Refer to the servicing notes "NOTE FOR REPLACEMENT
OF THE USB CONNECTOR (CN902) AND THE AUX
JACK (J901)" on page 4, if replacing CN902 and J901.
31 31
CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
9 10 11
LCD901
LIQUID CRYSTAL DISPLAY PANEL
LSW908 LSW907 LSW906
LSW908 LSW907 LSW906
4 5 6
/SHUF /ZAP /PAUSE
(Page 25)
MAIN BOARD
CN102
A
R993 R992
19 CN901
C902
IFM1
20
R901 D902
49
48
R902
33
32
Note 2: IC901 has been changed in the midway of production. Moreover, the KEY board has
been changed simultaneously with it. Before repairing, be sure to refer to "ABOUT
CHANGE OF THE LCD DRIVER IC (IC901) ON THE KEY BOARD" on page 7.
Ver. 1.3
12 13 14
LED946,S901
Z
S901
LED901
(LCD BACK LIGHT)
R954
1
LED901
LSW905
11
1-884-821-
(11)
LSW905
DSPL
/ SCRL
J901
AUX
IFM3
1
2
J901
IFM4
R906 CN902
R907
CN902
C912
(USB)
FB901
FB902
11
(11)
1-884-821-