Printed Wiring Boards -Key Section - Sony CDX-GT440U Service Manual

4-7. PRINTED WIRING BOARDS – KEY Section –
1 2
LED907,932
(ILLUMINATOR)
A
R948
LED910,S903
B
M M=
S903
/SEEK+
LED919,S904
S904 S906
LED919
LED921,S906
C
LED912,S905
SEEK–/
S905
. m
D
LED909,934
(ILLUMINATOR)
E
F
R925
R900
G
R899
R921 R919
R943
H
CDX-GT440U/GT444U/GT447UE
• : Uses unleaded solder.
3 4 5
LED914,S902
SOURCE/OFF
LED914
S902
S907
LED916
3 2
IC902
1 4
LED916,S907 LED924,925,928,929 IC902
(RING ILLUMINATOR)
ZAP
C906
R976 R905
R977
R926
R998
R914
RE901
R920
R918
R983
R984
6 7 8
LED905
DISC SLOT
INDICATOR
LED905
1
LIQUID CRYSTAL DISPLAY PANEL
LSW912
LSW913 LSW911 LSW910
R935 R967
LSW913 LSW912 LSW911 LSW910
MODE PTY 1/ALBM – 2/ALBM +
(US)
AF/TA/PTY
(AEP,UK,RU)
R934
R971
R932
R933
C909
R970
C910
C911
R963
64 49
R917
1 48
R911
IC901
R910
16 33
17 32
21 21
9 10 11
LCD901
LSW909 LSW908 LSW907 LSW906
R930 R929
LSW909 LSW908 LSW907 LSW906
3/REP 4/SHUF 5/DM+ 6/PAUSE
(Page 17)
MAIN BOARD
CN403
A
R966
19
20 CN901 2
CDX-GT440U/GT444U/GT447UE
12 13 14
LED903,S901
Z
S901
52
LED901
LCD BACK
LIGHT
11
(11)
1-880-412-
LSW905
R962
LSW905
DSPL/SCRL
W003
BRN
RED
W002 ORG
W001
11
(11)
1-880-413-
1
J901
AUX
L901
BRN
W005
RED
W006
ORG
W004
11
(11)
1-880-412-