Schematic Diagram - Key Board - Sony CDX-GT52UM Service Manual

4-14. SCHEMATIC DIAGRAM - KEY Board -

1 2 3
KEY BOARD
A
R906
FB902
B
J901
FB901
AUX
FB903
C
CN901
20P
USB_GND 1
USB_VBUS 2
D_GND 3
KEY_GND 4
AUX_L 5
D
AUX_R 6
AUX_GND 7
RE_0 8
A
RE_1 9
MAIN KEY_1 10
BOARD
KEY_0 11
(2/5)
CN102 SIRCS 12
(Page 34)
LCD_DATA 13
E
LCD_CE 14
LCD_CLK 15
ILL 16
PANEL_SW 17
D– 18
D+ 19
GND 20
F
CN903
4P
L903
3
C911
1000p
1
1
2
G
3
4
H
I
J
CDX-GT52UM/GT470UE/GT470UM/GT472UE/GT472UM/GT474UM/GT520U/GT525U
• See page 44 for IC Block Diagrams.
4 5 6
LED931, 933, 935, 937, 939, 941, 943, 945, 947, R931 R933
LED951, 953, 955, 957, 959, 961, 963, 965 180 (GT470UE/GT472UE/GT474UM) 220 (GT470UE/GT472UE/GT474UM)
SML-D12V8WT86TN (GT470UM/GT520U/GT525U) 680 (GT52UM/GT470UM/GT472UM/GT520U/GT525U) 680 (GT52UM)
SML-D12D8WT86TQ (GT472UM) 820 (GT470UM/GT472UM/GT520U/GT525U)
SML-D12P8WT86TK (GT470UE/GT472UE/GT474UM)
LNJ437W840S0 (GT52UM)
1k
R931 R935
LED931
OFF
SOURCE
LED933 (AR)
R930
680
MODE
C916
LED930
1000p
SML-D12D8WT86TQ
OFF
SOURCE
C912
0.1
LED932
SML-D12D8WT86TQ
MODE
R933 R932 R937
820
R943 R947 R942
1.5k
DATA
LED943 LED947
CE
(ILLUMINATION)
CLK
LED945
R949
(ILLUMINATION)
R945 R951 R944
1.5k
R953 LED951 R957
EXCEPT
PTY AEP, RU, UK
4
PTY
AF/TA
2
( AEP, RU, UK )
LED953
ALBUM (AR)
1
R952
1.5k
LED950
SML-D12D8WT86TQ
PTY
LED952
SML-D12D8WT86TQ
ALBUM
1
R955 R954 R959
1.8k
R949 R953 R957
270 (GT470UE/GT472UE/GT474UM) 330 (GT470UE/GT472UE/GT474UM) 330 (GT470UE/GT472UE/GT474UM)
1K (GT52UM) 1K (GT52UM/GT470UM/GT520U/GT525U) 1K (GT52UM/GT470UM/GT520U/GT525U)
1.2K (GT470UM/GT520U/GT525U) 1.5K (GT472UM) 1.5K (GT472UM)
1.5K (GT472UM)
R951 R955 R959
270 (GT470UE/GT472UE/GT474UM) 330 (GT470UE/GT472UE/GT474UM) 330 (GT470UE/GT472UE/GT474UM)
1.2K (GT52UM/GT470UM/GT520U/GT525U) 1K (GT52UM) 1K (GT52UM)
1.5K (GT472UM) 1.2K (GT470UM/GT520U/GT525U) 1.2K (GT470UM/GT520U/GT525U)
1.8K (GT472UM) 1.8K (GT472UM)
CDX-GT52UM/GT470UE/GT470UM/GT472UE/GT472UM/GT474UM/GT520U/GT525U
7 8 9 10
R935 R937
330 (GT470UE/GT472UE/GT474UM) 330 (GT470UE/GT472UE/GT474UM)
820 (GT52UM) 820 (GT52UM)
1K (GT470UM/GT520U/GT525U) 1.2K (GT470UM/GT520U/GT525U)
1.5K (GT472UM) 1.5K (GT472UM)
R916
R939
820
S901
LED935 LED939
ZAP
R917
1k
SEEK+
S902
LED941
OFF
LED937 (AR)
SOURCE
R934
SEEK–
1.5k (AR)
R918
1k
R938
680
S903
LED934
SML-D12D8WT86TQ
LED938
SML-D12D8WT86TQ
SEEK+
R919
SEEK+ ZAP
1.2k
S904
LED936 LED940
SML-D12D8WT86TQ SML-D12D8WT86TQ
MODE
SEEK–
R936 R941 R940 R920
1.5k 820 1.5k
S905
SEEK–
R921
R946
1.8k
S906
1.2k
LED942 LED946
R943
SML-D12D8WT86TQ SML-D12D8WT86TQ
330 (GT470UE/GT472UE/GT474UM)
820 (GT52UM)
(ILLUMINATION)
R922
1K (GT470UM/GT520U/GT525U)
1.5K (GT472UM) 2.2k
S907
LED944
SML-D12D8WT86TQ R948 R945
ZAP
1.5k 330 (GT470UE/GT472UE/GT474UM)
(ILLUMINATION)
820 (GT52UM)
1.2K (GT470UM/GT520U/GT525U)
R950
1.5K (GT472UM)
1.5k
R947
270 (GT470UE/GT472UE/GT474UM)
(AR)
1K (GT52UM)
1.2K (GT470UM/GT472UM/GT520U/GT525U)
LED965
R961
SCRL
LED955 LED959 DSPL
LED963
ALBUM SHUF
2 4
PAUSE
LED957 LED961 6
5
3
(AR) (AR) (AR)
R956 R960 LED964
1.5k 1.5k SML-D12D8WT86TQ
SCRL
LED954 LED958
DSPL
SML-D12D8WT86TQ SML-D12D8WT86TQ
LED962
ALBUM SHUF
SML-D12D8WT86TQ
2 4
PAUSE
LED956 LED960
6
SML-D12D8WT86TQ SML-D12D8WT86TQ
R967 R966
1.5k
5
3
R958 R963 R962 R977 R976
1.8k 1.8k 1.8k
R961 R967
330 (GT470UE/GT472UE/GT474UM) 330 (GT470UE/GT472UE/GT474UM)
1K (GT52UM/GT470UM/GT520U/GT525U) 1K (GT52UM/GT470UM/GT520U/GT525U)
1.5K (GT472UM) 1.5K (GT472UM)
R963 R977
330 (GT470UE/GT472UE/GT474UM) 330 (GT470UE/GT472UE/GT474UM)
1K (GT52UM) 1K (GT52UM)
1.2K (GT470UM/GT520U/GT525U) 1.2K (GT470UM/GT520U/GT525U)
1.8K (GT472UM) 1.8K (GT472UM)
43 43
11 12 13 14
R939 R941
220 (GT470UE/GT472UE/GT474UM) 220 (GT470UE/GT472UE/GT474UM)
680 (GT52UM/GT470UM/GT472UM/GT520U/GT525U) 680 (GT52UM)
820 (GT470UM/GT472UM/GT520U/GT525U)
R973
100
IC902
LED901
NHSW157AT
1 3 2
REMOTE CONTROL
(LCD BACK LIGHT)
S909 RECEIVER
R971
IC902
SCRL 150
PNJ4813M01S0
DSPL
R923
820 R968 R972
120 150
S910
PAUSE S[4]
R969 R995 R996
6
120 1M 0
S[3]
R924
1k
COM[4]
C928
R970 0.1
S911 COM[3]
120
5 COM[2]
C921
COM[1]
R925 0.1
1k
S[2]
S912
C923
0.1
SHUF
4
R926
1.2k
C924
0.1
S913 S[1]
C922
0.47
3
CE
R927
1.5k
R997
470
S914
R998
ALBUM
470
2 CLK
R928
1.8k
R999
470
S915 DATA
ALBUM
C925 C926 C927
1
18p 18p 18p
R929
2.2k
S916
PTY
(EXCEPT AEP, RU, UK)
PTY
AF/TA
(AEP, RU, UK)
(AR)
0
Q930
5.2
LTC914TUBFS8TL
LED DRIVE
3 1 RE901
ROTARY
ENCODER
7 6
PUSH ENTER/MENU
0
(VOLUME)
5 2 4
5.2
Q931
LTC914TUBFS8TL
LED DRIVE
R975
0
53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30
LIQUID CRYSTAL DISPLAY PANEL
15 16 17
35
48 47 46 45 44 43 42 41 40 39 38 37 36 34 33
2.6 2.6
49 SEG4 SEG21 32
2.6 2.6
31
50 SEG3 SEG22
2.6 2.6
51 COM4 SEG23 30
2.6 2.6
52 COM3 SEG24 29
2.6 2.6
53 COM2 SEG25 28
2.6 2.6
54 COM1 SEG26 27
2.6 2.6
IC901
55 SEG2 SEG27 26
5.2 2.6
56 VDD SEG28 25
3.4 LIQUID CRYSTAL DISPLAY DRIVER 2.6
57 VDD1 SEG29 24
IC901
1.7 2.6
PT16512-LQ
58 VDD2 SEG30 23
2.6
59 VSS SEG31 22
2.6 2.6
60 SEG1 SEG32 21
5 2.6
61 INH SEG33 20
0 2.6
62 LCD_CE SEG34 19
3.3 2.6
63 LCD_CLK SEG35 18
0 2.6
64 LCD_DATA SEG36 17
IC B/D
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
0
5.2
Q901
LTC014TUBFS8TL
LED DRIVE
29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
LCD901
Note: Refer to the servicing notes "NOTE FOR REPLACEMENT
OF THE USB CONNECTOR (CN903) AND THE AUX
JACK (J901)" on page 5, if replacing CN903 and J901.
18
S[21]
S[22]
S[23]
S[24]
S[25]
S[26]
S[27]
S[28]
S[29]
S[30]
S[31]
S[32]
S[33]
S[34]
S[35]
S[36]