Printed Wiring Board -Key Section - Sony mex-1gp Service Manual

MEX-1GP
3-14. PRINTED WIRING BOARD — KEY SECTION —
1 2 3
A
LSW901
LSW901
R961
OFF
R972
LSW908
B
LSW908
R981
LED908,909,911,912
(VOL ILLUMINATION)
GP/ALBM
C
R983
LSW904
. m/
R994
SEEK–
LSW905
R991
D916
D
LSW905
LED921
DATA
E
F
G
H
I
RE901
VOL/PUSH SELECT
J
IC907 in the key board is not supplied.
The IC907 cannot be replaced. The complete key board
should be replaced.
MEX-1GP
• Refer to page 21 for Circuit Boards Location.
4 5 6
LSW907
IC912
AEP,UK,E MODEL US,CND MODEL
BTM/CAT
PTY
C969
R1017
IC912
LSW907
C971
R1013
R980
D938
R1041
LED909
R953
R940
R1056
R950
C946
LSW903
R1055
M >/
C941
SEEK+
LED917
R937
LED917
(LCD BACK LIGHT)
R993
R1008
R977
R1100
R960
R978
C905
C920
C929
R997
D919
LSW906
LF1001
LED922
R910
R984
S915
R963
R911
C909
LED915
CN901
LED910
LED915,
LSW906 LED910,S902
LED922,S902
SENS/BTM MODE
SOURCE
US,CND
SENS
AEP,UK,E
MODEL
MODEL
96
97
24 1
128
1
45 48
: Uses unleaded solder.
7 8 9
1
LCD901
(LIQUID CRYSTAL DISPLAY PANEL)
62
R971 R957
S903 R973 S905 R959
S902 S904
LED907 LED906 LED905 LED904
LED907,S903 LED906,S904 LED905, S905
AEP,UK,E
AF/TA 1 2
MODEL
US,CND
SCRL
MODEL
65
64
33
32
• Semiconductor Location
Ref. No. Location Ref. No. Location Ref. No.
D902 G-11 D916 D-3 IC901
D903 I-11 D917 G-11 IC902
D904 I-10 D919 D-4 IC903
D905 I-12 D920 H-11 IC904
D906 I-12 D921 G-2 IC905
D907 I-12 D922 G-2 IC906
D908 I-12 D923 I-11 IC907
D911 G-12 D938 B-4 IC908
D912 G-12 D939 G-9 IC910
D913 G-12 IC911
30 30
10 11 12
LED903,S910
DSO
31
LED916
(LCD BACK LIGHT)
LED916
32
R955
S906 R951 S907 S908
S909
LED902 LED901 LED913
LED904,S906 LED902,S907 LED901,S908 LED913,S909
3/REP 4/SHUF 5/BBM MP 6/PAUSE
(Page 29)
SUB BOARD
CN501
C
Location Ref. No. Location Ref. No. Location
I-3 IC912 B-4 LED905 D-9
G-4 IC913 H-10 LED906 D-8
H-2 IC914 G-5 LED907 D-7
G-2 IC915 H-5 LED908 B-3
G-3 IC916 H-5 LED909 B-4
H-8 LED910 D-6
H-4 LED901 D-11 LED911 C-3
H-8 LED902 D-10 LED912 C-4
G-6 LED903 B-13 LED913 D-12
H-7 LED904 D-10 LED914 D-13
13 14
S912
OPEN
S910
S912
R1010
Q904
R1011
R976
R1012
LSW902
R958
R990 R975
LSW902
R992 LED914
DSPL
LED914, S911
EQ3
S911
11
(11)
11
(11)
Ref. No. Location
LED915 D-5
LED916 C-13
LED917 C-6
LED921 D-3
LED922 D-5
Q903 G-3
Q904 B-14
Q905 F-6
Q906 F-6