Schematic Diagram - Key Section - Sony CDX-GT40U Service Manual

CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
Ver. 1.3
4-11. SCHEMATIC DIAGRAM – KEY Section –
1 2 3
KEY BOARD
A
R998
FB902
1k
FB901
J901
AUX
R905
0 FB903
CN901
20P
USB_GND
1
USB_VBUS 2
B
D-
3
D+ 4
GND 5
KEY_GND
6
AUX_L 7
AUX_R 8
AUX_GND 9
MAIN
BOARD A RE_0 10
(3/5)
RE_1
11
CN102
KEY_1 12
(Page 28)
C
KEY_0 13
SIRCS 14
DATA
LCD_DATA 15
CE
LCD_CE
16
CLK
LCD_CLK 17
ILL(FP+B) 18
PANEL_SW
19
GND 20
D
E
C916
1000p
CN902
4P
VBUS-USB
C915
D- 1000p
D+
GND-USB
(USB)
F
G
H
I
CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
4 5 6
S901
R920
820
R942
0
S902
R921
1k
SOURCE
R944
/ OFF
*2
R940
*2
S903
R922
SEEK+
1k
S904
R923
1.2k
R950
*3
S905
R924
1.5k
R954
SEEK-
*3
S906
R925
1.8k
R946 R956
*3 *3
R948 R952 R958
*4 *4 *5
S907 R926
LED938,940,942,944
2.2k
MODE
(ILLUMINATION)
R970
2/ALBUM
*3
R966
*6
R968
*4
R972
*3
R927
R974 0
*5
*1 LED932,934,936,938,940,942,944,946,950,952,954
SML-D12P8WT86TK (AEP,RU,UK)
RE901
SML-D12V8WT86TN (EXCEPT AEP,RU,UK)
PUSH ENTER/
SELECT
R919
0
LSW912
AF/TA/
(AEP,RU,UK)
R918
(EXCEPT AEP,RU,UK)
0
R999
0
Note 1: Refer to the servicing notes "NOTE FOR REPLACEMENT
7 8 9
R901
IC902
150
PNJ4813M01S0
5 3 1
R902
LSW905
150
DSPL
/ SCRL
6 4 2
R980
*7 R991 C906
820
R982
*7
R908
120
5 3 1
R909
LSW906 120
6/PAUSE
6 4 2 R910
R992 R904
120
1k 1M
Q901
RT1N140C-TP-1
LCD
C904
BACK LIGHT
DRIVE
0.1
5 3 1
LSW907
5.1
5/ZAP
6 4 2
R993
1k
Q903
RT6N140C-TP-1
5 3 1
0.1 LED DRIVE
LSW908
R994
4/SHUF
1.2k
5.1
6 4 2
*2 R940,944
5 3 1
220 (AEP,RU,UK)
LSW909
820 (EXCEPT AEP,RU,UK)
3/REP
*3 R946,950,954,956,970,972
6 4 2
270 (AEP,RU,UK)
1k (EXCEPT AEP,RU,UK)
*4 R948,952,968
R995
R984
330 (AEP,RU,UK)
1.5k
*7
1.2k (EXCEPT AEP,RU,UK)
*5 R958,974
270 (AEP,RU,UK)
5 3 1
1.2k (EXCEPT AEP,RU,UK)
LSW910
*6 R966
330 (AEP,RU,UK)
6 4 2
1k (EXCEPT AEP,RU,UK)
*7 R980,982,984,986
R996
R986
100 (AEP,RU,UK)
1.8k
*7
150 (EXCEPT AEP,RU,UK)
*8 R988
150 (AEP,RU,UK)
220 (EXCEPT AEP,RU,UK)
*9 R990
5 3 1
180 (AEP,RU,UK)
LSW911
220 (EXCEPT AEP,RU,UK)
1/ALBUM
6 4 2
R997
R988
2.2k
*8
5 3 1
PTY
6 4 2
PTY
R990
*9
OF THE USB CONNECTOR (CN902) AND THE AUX
JACK (J901)" on page 4, if replacing CN902 and J901.
32 32
10 11 12
48 47 46 45 44 43 42 41 40 39 38 37 36
R903
100
S[4]
2.6
49 SEG4
S[3] 2.6
50
SEG3
COM[4] 2.6
51 COM4
COM[3]
2.6
IC902 52 COM3
COM[2] 2.6
0.1
53
COM2
REMOTE CONTROL COM[1]
2.6
54 COM1
SIGNAL RECEIVER
S[2] 2.6 IC901
R976
55
SEG2
0
5.2
IC901
56 VDD
C902 0.1 LC75839PW-US-H
3.4
C903 57 VDD1
LCD CONTROL
C901 0.1 1.7
0.1
58
VDD2
59 VSS
S[1] 2.6
60
SEG52
4.8
61 INH
CE R915 470
0.1
62 LCD_CE
0.47 CLK R916 3.3
470
63
LCD_CLK
DATA 0.2
64 LCD_DATA
R917
470
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Note 2: IC901 has been changed in the midway of production. Moreover, the KEY board has
been changed simultaneously with it. Before repairing, be sure to refer to "ABOUT
CHANGE OF THE LCD DRIVER IC (IC901) ON THE KEY BOARD" on page 7.
13
35 34 33
S[21]
2.6
SEG21 32
2.6 S[22]
SEG22 31
2.6 S[23]
SEG23 30
S[24]
2.6
SEG24 29
2.6 S[25]
28
SEG25
S[26]
2.6
SEG26 27
2.6 S[27]
SEG27 26
2.6 S[28]
SEG28 25
S[29]
2.6
SEG29 24
2.6 S[30]
23
SEG30
2.6 S[31]
SEG31 22
2.6 S[32]
SEG32 21
2.6 S[33]
SEG33 20
S[34]
2.6
SEG34 19
2.6 S[35]
18
SEG35
2.6 S[36]
SEG36 17
COM[1]
LCD901
COM[2]
LIQUID
COM[3]
CRYSTAL
DISPLAY COM[4]
PANEL
S[48]
S[47]
S[46]
S[45]
S[44]
S[43]
S[42]
S[41]
S[40]
S[39]
S[38]
S[37]
S[36]
S[35]
S[34]
S[33]
S[32]
S[31]
S[30]
S[29]
S[28]
S[27]
S[26]
S[25]
S[24]
S[23]
S[22]
S[21]
S[20]
S[19]
S[18]
S[17]
S[16]
S[15]
S[14]
S[13]
S[12]
S[11]
S[10]
S[9]
S[8]
S[7]
S[6]
S[5]
S[4]
S[3]
S[2]
S[1]