Schematic Diagram -Key Section - Sony CDX-GT24W Service Manual

CDX-GT24W/GT240/GT290/GT290S
4-8. SCHEMATIC DIAGRAM – KEY Section –
1 2 3
KEY BOARD
CN901
15P
A
15
PANEL
14
ILL+B
LCD-CLK 13
LCD-CE 12
LCD-DATA 11
R999 100
SIRCS 10
MAIN
KEY-0 9
BOARD A
8
KEY-1
(2/3)
7
RE-1
CN701
6
B (Page 21) RE-0
5
AUX-GND
AUX-R 4
AUX-L 3
KEY_GND 2
D_GND 1
C
D
J901
AUX
C997
E 1000p
R901
820
S907 S903
SOURCE OFF
F
R905 R906
820 1k
S904 S905
G
MODE
SEEK+ SEEK-
CDX-GT24W/GT240/GT290/GT290S
4 5 6
CLK
R938
CE 180
DATA
R939
180
R940
220
R943 R978
180 220
R944 R981
180 120
0.1
5.2
Q931
RT1N140C-TP-1
0.1 DIMMER SWITCH
Q932
RT1N436C-TP-1
LCD BACKLIGHT SWITCH
5.1
C922 C921
1000p 1000p
S909 R922
0
R902 R903 R904
1k 1k 1.2k
R921
0
S902 S901
EQ3 DSPL/SCRL
PUSH SELECT
(VOLUME)
R997 R959 R961
150 100 220
R907
1k
S906
7 8 9
LED911,916 LED923,925
(GUIDE BUTTON SOURCE) (ILLUMINATION)
R967 R982
120 270
EQ3
DSPL
R987
220
MODE
SOURCE
R975 R973 R988
220 120 120
R983
R977 R971 R989
270
120 220 220
LED913,918
(GUIDE BUTTON DSPL)
R900 R933
0 0
LSW902 LSW903 LSW904 LSW905
6 5 6 5 6 5 6 5
R957 R955 R951 R953
220 120 220 120
4 3 4 3 4 3 4 3
2 1 2 1 2 1 2 1
PTY 1/ALBUM- 2/ALBUM+ 3/REP
R908 R910 R911 R912
1.2k 1.5k 1.8k 2.2k
24 24
10 11 12
IC902
IC902
PNA4813M01S0
REMOTE CONTROL
R923 SIGNAL RECEIVER
150
R924 R915
150 100
COM3
COM4
C971
0.1
S3
R925 1k
C983 0.1
C981
R926 1k
0.1
R928
C984 0.1
1M
R927 1k
CE R916 100
C986 C987 R929
0.47 1000p 39k CLK R917 100
DATA R918 100
37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
LIQUID CRYSTAL DISPLAY PANE
LSW906 LSW907 LSW908
6 5 6 5 6 5
R947 R949
220 120
4 3 4 3 4 3
2 1 2 1 2 1
4/SHUF 5 6/PAUSE
R919 R914
3.3k 3.9k
13 14
36 35 34 33 32 31 30 29 28 27 26 25
S14
2.7 2.7
37 24
S15
2.7 2.7
38 23
2.7 2.7 S16
39 22
5.2 2.7 S17
40 VDD 21
3.4 2.7 S18
IC903
VDD1
41 20
1.8 2.7 S2
VDD2 IC903
42 19
LC75836WH-US-E 2.7 S1
VSS
43 18
DISPLAY CONTROL
3.8 2.7 S26
OSC
44 17
S27
4.7 2.7
45 INH 16
S28
0.3 2.7
46 CE 15
S29
3.2 2.7
47 CL 14
3.1 2.7 S30
48 DI 13
1 2 3 4 5 6 7 8 9 10 11 12
22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
LCD901
L