Schematic Diagram -Key Section - Sony CDX-GT31MP Service Manual

4-8. SCHEMATIC DIAGRAM – KEY Section –
1 2
KEY BOARD
A
*2 R941
270 (GT267ME)
1.2k (GT260MP/GT310MP:E,EA,MX/GT313MP)
1.5k (GT31MP/GT310MP:AR)
*3 R943
270 (GT267ME)
680 (GT31MP)
1k (GT260MP/GT310MP:E,EA,MX/GT313MP)
1.5k (GT310MP:AR)
*4 R945
270 (GT267ME)
680 (GT31MP)
B
1k (GT260MP/GT310MP:E,EA,MX/GT313MP)
1.2k (GT310MP:AR)
*5 R949
820 (GT267ME)
1.5k (GT31MP)
2.2k (GT260MP/GT310MP/GT313MP)
*6 R950,952
820 (GT267ME)
1.5k (GT31MP)
1.8k (GT260MP/GT310MP/GT313MP)
CN001
15P
C
PANEL 15
ILL+B 14
13
LCD-CLK
LCD-CE 12
LCD-DATA
11
SIRCS
10
MAIN
9
KEY-0
BOARD A
8
KEY-1
(3/3)
CN101 RE-1 7
(Page 25)
RE-0 6
D
5
AUX-GND
4
AUX-R
AUX-L 3
KEY_GND 2
D_GND 1
E
J901
AUX
F
G
H
CDX-GT31MP/GT260MP/GT267ME/GT310MP/GT313MP
3 4 5
R938 R941
120 *2
R939
120
R940
120
R943
*3
R945
*4
CLK
CE
DATA
Q931
RT1N140C-TP-1
R935
0
DIMMER SWITCH
100
0
R931
1.5k
0
Q932
RT1N436C-TP-1
LCD BACK LIGHT
/AMBER SWITCH
5.1
R900
0
S909
PUSH SELECT
(VOLUME)
7
3
5
R901 R902 R903 R904
1.2k
820 1k 1k
2
4
1
S902
S901 S903 S904
6
SOURCE
EQ3 MODE
/ OFF
R922
0
*13 R985
180 (GT31MP/GT267ME)
220 (GT260MP/GT310MP/GT313MP)
R905 R906
820 1k
*14 R987
150 (GT267ME)
180 (GT31MP)
220 (GT260MP/GT310MP/GT313MP)
S906 S907 S908
*15 R987
SEEK+
100 (GT267ME)
SEEK- 120 (GT31MP)
150 (GT260MP/GT310MP/GT313MP)
6 7 8
R954 R968 R972
*7 *7 *10
R949
*5
R982
R950 *12
*6
R956 R970
R952 R974
*8 *8
*6 *11
*7 R954,968 *10
330 (GT267ME)
1.2k (GT31MP/GT260MP/GT310MP:E,EA,MX/GT313MP)
1.8k (GT310MP:AR)
*8 R956,970 *11
330 (GT267ME)
1k (GT260MP/GT310MP:E,EA,MX/GT313MP)
1.2k (GT31MP)
1.5k (GT310MP:AR)
*12
R933
*9 R960
0
270 (GT267ME)
820 (GT31MP)
1.2k (GT260MP/GT310MP:E,EA,MX/GT313MP)
1.5k (GT310MP:AR)
LSW901
PTY (EXCEPT RU)
LSW902
AF/TA/ PTY (RU)
1/ALBUM
6 5 6 5
R998 R999
*15 *15
4 3 4 3
2 1 2 1
R907 R908 R909
1.5k
1k 1.2k
27 27
CDX-GT31MP/GT260MP/GT267ME/GT310MP/GT313MP
9 10 11
*1 LED901,903,904,906,908,910,912,914,918
SML-D12V8WT86TN (GT260MP/GT310MP:E,EA,MX/GT313MP)
R962
*10 SML-D12D8WT86TQ (GT310MP:AR)
SML-D12P8WT86TK (GT267ME)
R923 LNJ437W840SO (GT31MP)
150
R964
*11
R924
150
IC902
PNJ4813M01S0
5.1
VCC
5.1
OUT
REMOTE CONTROL
GND
R976 SIGNAL RECEIVER
*11 C971
0.1
R960 R966
*9 *12
R978
*12
COM3
R962,972
COM4
270 (GT267ME)
1.2k (GT31MP/GT260MP/GT310MP:E,EA,MX/GT313MP) S3
R917
1.5k (GT310MP:AR) 0
C983 0.1 R925 1k
R964,974,976
C981
270 (GT267ME)
0.1 C984 0.1 R926 1k
1k (GT31MP/GT260MP/GT310MP:E,EA,MX/GT313MP)
R928 R927 1k
1.5k (GT310MP:AR)
1M
R966,978,982
270 (GT267ME)
CE R916
1k (GT31MP/GT260MP/GT310MP:E,EA,MX/GT313MP)
1.2k (GT310MP:AR)
CLK FB904
DATA R918
C986
0.47
LSW903 LSW904 LSW905 LSW906
3/REP 4/SHUF 5
2/ALBUM
6 5 6 5 6 5 6
R990 R991
*15 *15
4 3 4 3 4 3 4
2 1 2 1 2 1 2
R910 R911 R912 R913
2.2k 3.3k 3.9k
1.8k
12 13 14
IC902
36 35 34 33 32 31 30 29 28 27 26 25
S14
2.6 2.6
37 24
2.6 2.6 S15
38 23
2.6 2.6 S16
39 22
5.1 2.6 S17
40 VDD 21
IC903
S18
3.4 2.6
41 VDD1 20
S2
1.7 2.6
IC903
42 VDD2 19
PT6586-LQ 2.6 S1
43 VSS 18
LCD CONTROL
3.8 2.6 S26
44 OSC 17
4.7 2.6 S27
45 INH 16
100 S28
0 2.6
46 CE 15
3.2 2.6 S29
47 CL 14
100 3.2 2.6 S30
48 DI 13
1 2 3 4 5 6 7 8 9 10 11 12
LCD901
LIQUID CRYSTAL DISPLAY PANEL
R987
LSW908
*14
LSW907
DSPL
6/PAUSE / SCRL
5 6 5 6 5
R985
*13
3 4 3 4 3
1 2 1 2 1
R914
6.8k