Schematic Diagram -Key Section - Sony CDX-GT25MPW Service Manual

4-8. SCHEMATIC DIAGRAM – KEY Section –
1 2
KEY BOARD
1
A * LED901,903,905,907,909,911,913,915,917,
919,921,923,925,927,933,935,937,945
SML-D12V8WT86SN (EXCEPT GT30MP/GT257ME/GT300MP:AR)
SML-D12D8WT86SQ (GT300MP:AR)
SML-D12Y8WT86SP (GT30MP)
SML-D12P8WT86SJ (GT257ME)
* 2 R920
1.2k (GT300MP:AR)
220 (GT257ME)
820 (EXCEPT GT257ME/GT300MP:AR)
* 5 R941
1.5k (GT30MP/GT300MP:AR)
1.2k (EXCEPT GT30MP/GT257ME/GT300MP:AR)
B
270 (GT257ME)
* 6 R943
1.5k (GT300MP:AR)
1k (EXCEPT GT30MP/GT257ME/GT300MP:AR)
680 (GT30MP)
270 (GT257ME)
* 7 R945
1.2k (GT300MP:AR)
1k (EXCEPT GT30MP/GT257ME/GT300MP:AR)
680 (GT30MP)
270 (GT257ME)
8 R949
*
2.2k (EXCEPT GT30MP/GT257ME)
C
1.2k (GT30MP)
820 (GT257ME)
* 9 R951,953
1.8k (EXCEPT GT30MP/GT257ME)
CN001 1.2k (GT30MP)
15P 820 (GT257ME)
PANEL 15
ILL+B 14
LCD-CLK 13
LCD-CE 12
LCD-DATA 11
R935 100
D
SIRCS 10
MAIN
9
KEY-0
BOARD A
KEY-1 8
(3/3)
CN403 RE-1 7
(Page 21)
RE-0 6
AUX-GND 5
AUX-R 4
AUX-L 3
2
KEY_GND
D_GND 1
E
J901
F AUX
G
H
* 20 LSW901
PTY
PTY/CAT
AF/TA/PTY
I
CDX-GT25MPW/GT30MP/GT250MP/GT257ME/GT300MP/GT303MP
3 4 5
R938 R941 LED945
120 * 5 * 1
(CD INDICATER)
R939 LED901 R949
* 1 * 8
120
R940 R943 R951
120 * 6 * 9
R945 R953
* 7 * 9
R933
0
CLK
CE
DATA
Q931
0.2
RT1N140C-TP-1
DIMMER SWITCH
5.1
R931
1.5k
0.1
Q932
0.1 RT1N436C-TP-1
BACK LIGHT LED DRIVE
R900
0
5.1
R901 R902 R903
820 1k 1k
S906 S907 S908 S901 S902 S903
SOURCE EQ3
/OFF
SEEK+ SEEK-
R905 R906
820 1k
LSW901
(GT25MPW/GT30MP/GT300MP/GT303MP) * 20
(GT250MP:US:CND) 6 5
R998 R999
(GT250MP:RU/GT257ME) * 18 * 18
4 3
2 1
R907
1k
6 7 8
LED911,913,915,917,919,921,925,933,935,937
(ILLUMINATION)
LED903 LED911 LED917 R981
* 1 * 1 * 1 * 13
LED907 R971
* 1 * 11
SEEK+
MODE
R919 LED913 LED919 LED933
0 * 1 * 1 *
LED909 LED923
* 1 * 1
LED927
SOURCE EQ3
* 1
/OFF
LED915 LED921 LED935
* 1 * 1 *
R920
* 2
R959 LED925
* 11 * 1
LED905 R963 R967 LED937
* 1 * 13 * 13 *
R961 R973
* 12 * 15
SEEK-
R957 R965 R969 R983
* 10 * 14 * 14 *19
* 10 R957
1.2k (GT300MP:AR)
820 (EXCEPT GT30MP/GT257ME/GT300MP:AR)
680 (GT30MP)
220 (GT257ME)
* 11 R959,971
1.8k (GT300MP:AR)
1.2k (EXCEPT GT30MP/GT257ME/GT300MP:AR)
1k (GT30MP)
330 (GT257ME)
* 12 R961
1.5k (GT300MP:AR)
1k (EXCEPT GT257ME/GT300MP:AR)
330 (GT257ME)
* 13 R963,967,981
1.2k (GT300MP:AR)
820 (EXCEPT GT257ME/GT300MP:AR)
220 (GT257ME)
* 14 R965,969
R1000
1.2k (GT300MP:AR)
0
820 (EXCEPT GT30MP/GT257ME/GT300MP:AR)
680 (GT30MP)
R904
220 (GT257ME)
5
1.2k
3
* 15 R973
1.5k (GT300MP:AR)
1
S905
1.2K (EXCEPT GT30MP/GT257ME/GT300MP:AR)
PUSH SELECT 1k (GT30MP)
2
(VOLUME) 330 (GT257ME)
4
* 16 R985
220 (EXCEPT GT257ME)
180 (GT257ME)
* 17 R987
220 (EXCEPT GT257ME)
S904
150 (GT257ME)
MODE
* 18 R990,991,998,999
150 (EXCEPT GT257ME)
100 (GT257ME)
* 19 R983
1.2K (GT300MP:AR)
820 (EXCEPT GT30MP/GT257ME/GT300MP:AR)
680 (GT30MP)
180 (GT257ME)
LSW902 LSW903 LSW904
1/ALBM- 2/ALBM+ 3/REP
6 5 6 5 6 5
4 3 4 3 4 3
2 1 2 1 2 1
R908 R909 R910
1.2k 1.5k 1.8k
23 23
CDX-GT25MPW/GT30MP/GT250MP/GT257ME/GT300MP/GT303MP
9 10 11
IC902
IC902
PNA4813M01S0
REMOTE CONTROL
1 SIGNAL RECEIVE
R923 R924
150 150
5.2
VCC
5
OUT
GND
D980
RKZ6.8B2KGP1
1
1
D983
RKZ5.1B2KGP1
COM3
2.6
37
C971 0.1
COM4 2.6
38
C981 0.1
S3 2.6
39
5.2
40 VDD
C983 0.1
R925 1k 3.4
41
VDD1
C984 0.1 R926 1k
1.7
42
VDD2
R927 1k
43
VSS
C987 1000p
3.7
44 OSC
4.7
45 INH
R929 39k
CE R916 100 0.1
46 CE
C986 0.47
CLK FB904
3.2
47
CL
DATA R918 100
3.1
48
DI
37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20
LSW905 LSW906 LSW907
4/SHUF 5 6/PAUSE
6 5 6 5 6
R990 R991
* 18 * 18
4 3 4 3 4
2 1 2 1 2
R911 R912
2.2k 3.3k
Ver. 1.1
12 13
36 35 34 33 32 31 30 29 28 27 26 25
S14
2.6
24
2.6 S15
23
2.6 S16
22
2.6 S17
IC903 21
2.6 S18
20
S2
2.6
IC903
19
PT6586-LQ
2.6 S1
18
LCD DRIVE
2.6 S26
17
2.6 S27
16
2.6 S28
15
S29
2.6
14
S30
2.6
13
1 2 3 4 5 6 7 8 9 10 11 12
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
LCD901
LIQUID CRYSTAL DISPLAY PANEL
LSW908
DSPL/SCRL
5
6 5
R985 R987
* 16 * 17
3
4 3
1 2 1
R914
6.8k
R913
3.9k