Sony CDX-GT480U, Service Manual

Page: 23 / 40

CDX-GT48UM/GT480U/GT480US/GT484US
CDX-GT48UM/GT480U/GT480US/GT484US
23 23
4-8. SCHEMATIC DIAGRAM – KEY Section –
5
G
I
H
9 14 8 12
J
A
B
1 15 11
F
13 10 16 4 7
D
E
17 3
C
2 6
(2/3)
A
MAIN
BOARD
CN403
*1
*1
*1
*1
*1
*1
*1
*1
0.2
0.8
0.1
0.1
0.8
0.8
0.2
5.4
5.2
0.2
3.2
3.2
5.4
2.7
2.7
2.7
2.7
3.7
1.8
2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 5.3 5.3 5.3
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.6
*1
*1 *1
*1 *1
(GT480U/GT480US/GT484US)
(GT48UM)
GT48UM
GT480U/
*1
(GT480U/GT480US/GT484US)
(GT48UM)
(GT48UM)
(GT48UM)
GT480US/
GT484US
(GT480U/GT480US/GT484US)
(GT480U/GT480US/GT484US)
VCC
OUT
GND1
GND2
RS-470
IC902
NESW505CT-AST
LED901
S906
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17
18
19
20
21
22
29
28
27
26
25
24
23
30
31
32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
LC75826WH-US-E
IC901
BACK- DIMMER COLOR BLINK SEG48 SEG47 SEG46 SEG45 SEG44 SEG43 SEG42 SEG41 SEG40 SEG39 SEG38 SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG1
1
SEG10
SEG9 SEG8 SEG7 SEG6 SEG5
SEG4
SEG3
COM4
COM3
COM2
COM1
SEG2
VDD
VDD1
VDD2
VSS
SEG52
INH
LCD_CE
LCD_CLK
LCD_
1SS355WTE-17
D901
D902
MAZ8051GMLS0
R903
1k
R902 1k
R901
1k
C901 0.1
C902 0.1
1M
R904
C904
0.47
C906
0.1
R906
150
R907
150
R905
100
MAZ8180GMLS0
D906
LSW911
3 1
2 4
5
6
LSW905
3 1
2 4
5
6
LSW906
3 1
2 4
5
6
LSW908
3 1
2 4
5
6
LSW910
3 1
2 4
5
6
LSW912
3 1
2 4
5
6
LSW909
3 1
2 4
5
6
LSW907
3 1
2 4
5
6
LSW901
3 1
2 4
5
6
S905
S903
S902
S904
RE901
R920
820
R921
1k
R922
1k
R923
1.2k
R924
1.5k
R925
1.8k
2.2k
R926
R927
3.3k
R928
820
R929
1k
R930
1k
R931
1.2k
R932
1.5k
R933
1.8k
R934
2.2k
R908
330
R909
330
R910
330
R911
1.2k
LED913
LED931
LED930
R935
180
R936
150
R943
100
R944
100
R947
220
R948
180
LED918
R952
180
R951
220
LED928
LED929 SML-310DTT86
LED926
SML-310DTT86
LED927
SML-310DTT86
R939
220
R940
180
R971
R972
R975
180
R976
150
R963
100
R964
100
R967
100
R968
100
0.1
C903
LED925
LED924
LED922
R980
150
R981
150
R982
150
LED911
MAZ8068GMLS0
D907
MAZ8068GMLS0
D908
MAZ8068GMLS0
D909
MAZ8068GMLS0
D910
MAZ8068GMLS0
D912
3
1 2
4
L901
RB901
10X2
2
1
4
3
MAZ8068GMLS0
D91
1
0
R986
0
R987
100 R988
100 R989
100 R990
1
2
3
4
6P
CN902
VDR900
VDR901
VDR903
LCD901
LIQUID CRYSTAL DISPLAY PANEL
1 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 52 2 4 49 51 3 50
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
20P
CN901
GND
USB_VBUS
GND
USB_GND
KEY_GND
USB_D+
AUX_LCH
USB_D-
KEY1
AUX_RCH
RE1
AUX_GND
RE0
KEY0
LCD_CE
SIRCS
LCD_CLK
LCD_DATA
ILL_+B
PANEL(NOSE_SW)
LSW913
3 1
2 4
5
6
R991
3.3k
R955
100
S908
LED907
LED914
LED915
VDR908 VDR906
LED932
LED935
2SC3052EF-T1-LEF
Q907
2SC3052EF-T1-LEF
Q902
2SC3052EF-T1-LEF
Q901
R992
10k
R993
10k
R996
10k
0
R998
FB903
J901
FB902
FB901
R959
100
R914
0
DATA
CE
CLK
DATA
S[1]
S[2]
COM[1]
COM[2]
COM[3]
COM[4]
S[3]
S[4]
S[5] S[6] S[7] S[8] S[9]
S[10] S[1
1]
S[12] S[13] S[14] S[15] S[16] S[17] S[18] S[19] S[20]
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]
COM[1] COM[2] COM[3] COM[4]
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[1
1]
S[10]
S[9] S[8] S[7] S[6] S[5] S[4] S[3] S[2] S[1]
S[48] S[47] S[46] S[45] S[44] S[43] S[42] S[41] S[40] S[39] S[38] S[37]
CLK
CE
DSPL/SCRL
6/PAUSE
5/DM+
4/SHUF
3/REP
2/ALBM +
ZAP
IC901
KEY BOARD
SIGN851
SIGN852
SIGN849
5
6
VBUS-USB
D–
D+
GND-USB
CN902
(USB)
S907
SOURCE
SEEK+/
/SEEK–
DISC SLOT
INDICATOR
LED907,911,913-915,918,922,924,925,928,930,931
SML-310DTT86
SML-310VTT86
/SEEK–
MODE
ROTARY
ENCODER
PUSH ENTER/
(VOLUME)
SELECT
BTM
100
180
100
150
(RING ILLUMINATOR)
LED928
(RING ILLUMINATOR)
LED926,927,929
LED DRIVER
OFF
(LCD BACK LIGHT)
LCD BACK LIGHT
DIMMER CONTROL
LCD BACK LIGHT
CONTROL
REMOTE CONTROL
SIGNAL RECEIVER
IC902
2 3
4 1
LCD DRIVER,
LED CONTROL
LIGHT
DATA
AUX
JACK BOARD
W003
W002
W001
W005
W006
W004
SEEK+/
MODE
1/ALBM –
(RING ILLUMINA
TOR)
SML-310VTT86
LED932,935
OFF
MODE
SOURCE
SOURCE
SIGN852
SIGN849
SIGN851
(Page 20)