Sony CDX-GT450U / CDX-GT454US Service Manual ▷ View online
CDX-GT450U/GT454US
CDX-GT450U/GT454US
21
21
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
A
MAIN BOARD
CN102
IC902
IC901
LED928
LED929
1
52
LSW905
LSW906
LSW907
LSW908
LSW909
LSW910
LSW911
LSW912
LSW905
LSW906
LSW907
LSW908
LSW909
LSW910
LSW911
LSW912
LED903
S901
LED905
LED905
LED907
LED909
LED910
LED912
LED914
LED916
LED919
LED921
LED925
LED932
LED934
LED936
LED938
LED940
R920
R921
R942
R962
S902
R963
S903
LED910,S903
LED912,S905
LED940,S904
LED916,S907
LED914,S902
LED919,921,
S906
S904
S905
R966
S906
S907
R971
R983
R984
R984
R996
D921
1
2
3
1
2
3
4
5
RE901
6
7
RE901
PUSH ENTER/
SELECT
(VOLUME)
1
16
17
32
33
48
49
64
1
2
19
20
Q901
B C E
FB901
FB902
FB903
VDR906
VDR908
R900
R904
R905
R906
R908
R909
R910
R91
1
R944
R914
R915
R916
R917
R918
R919
CN901
R922
R923
R924
R925
R926
R928
R929
R930
R931
R932
R933
R934
R937
C901
C902
C903
C904
R940
C906
C909
R945
R946
R948
C910
C911
C912
C915
C916
1
6
5
7
4
CN902
R952
R953
R958
R959
R967
R970
R974
R975
R976
R978
R985
R986
R990
R991
R994
R995
R998
R999
D901
D902
D907
D908
D909
D91
1
D912
D916
LED903,S901
Z
2/ALBUM +
1/ALBUM –
m
.
SEEK–
SEEK+
>
>
M
1-882-750-
(11)
11
1-882-750-
(11)
11
LCD901
LIQUID CRYSTAL DISPLAY PANEL
6/PAUSE
DSPL/SCRL
J901
AUX
5
4/SHUF
3/REP
SOURCE/OFF
/MODE
CN902
(USB)
PTY
(GT450U)
AF/TA/PTY
(GT454US)
ZAP
DISC SLOT
INDICATOR
LED901
LCD BACK
LIGHT
(ILLUMINATOR)
LED907,932,936
(ILLUMINATOR)
LED909,934,938
(RING ILLUMINATOR)
LED925,928,929
•
: Uses unleaded solder.
4-7. PRINTED WIRING BOARD – KEY Section –
(Page 17)
CDX-GT450U/GT454US
CDX-GT450U/GT454US
22
22
11
2
F
15
12
A
5
D
C
13
G
1
E
9
4
H
3
J
8
B
6
14
I
7
10
MAIN
CN102
(3/3)
A
BOARD
5.2
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
5.2
2.6
3.5
2.6
1.8
2.6
2.6
2.6
2.6
2.6
2.6
2.6
0
2.6
3.2
2.6
3
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
5.2
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
5.2
0.1
4.7
(GT454US)
(GT450U)
KEY BOARD
IC901
IC902
1
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
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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
LC75829PWH-US-H
IC901
LCD DRIVER,LED CONTROL
BACK-LIGHT
DIMMER
COLOR1
COLOR2
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_DATA
SEG3
COM4
COM3
COM2
COM1
SEG2
VDD
VDD1
VDD2
VSS
SEG52
INH
LCD_CE
LCD_CLK
LCD_DATA
C901
0.1
C902
0.1
1M
R904
C904
0.47
C906
0.1
R906
150
R940
150
R986
100
RE901
2
45
3
1
67
R920
820
R921
1k
R922
1k
R923
1.2k
R924
1.5k
R925
1.8k
2.2k
R926
R928
820
R929
1k
R930
1k
R931
1.2k
R932
1.5k
R933
1.8k
R934
2.2k
R908
120
R909
120
R910
120
R911
1.5k
R966
0.1
C903
R914
0
R919
0
100
R915
100
R916
100
R917
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
R962
C910
100p
C911
100p
C909
100p
C912
0.1
S907
S902
S901
S903
S904
S906
S905
R998
0
R945
27
R946
27
1234
CN902
5
6
7
RT1N140C-TP-1
Q901
LCD BACK LIGHT
DIMMER CONTROL
FB903
FB901
FB902
J901
VCC
OUT
GND
OUT
GND
PNA4813M01S0
IC902
REMOTE CONTROL
SIGNAL RECEIVER
1
2
3
LSW905
3
1
2
4
5
6
3
1
2
4
5
6
3
1
2
4
5
6
3
1
2
4
5
6
3
1
2
4
5
6
3
1
2
4
5
6
3
1
2
4
5
6
3
1
2
4
5
6
LSW906
LSW907
LSW908
LSW909
LSW910
LSW911
LSW912
MA2J1
110GLS0
D901
1k
R995
RKZ6.8B2KGP1
D907
RKZ6.8B2KGP1
D908
RKZ6.8B2KGP1
D909
RKZ6.8B2KGP1
D916
RKZ6.8B2KGP1
D912
RKZ6.8B2KGP1
D91
1
0
R905
LED928
LED925
LED929
LED919
LED921
LED914
LED916
LED905
LED903
LED934
LED938
LED909
LED932
LED936
LED907
LED912
LED910
R963
R967
R984
R985
R970
R971
R978
R994
R942
R976
R948
R958
R959
R952
R953
R996
R990
R991
R983
R974
R975
1000p
C915
1000p
C916
RKZ6.8B2KGP1
D921
20P
CN901
1
USB_GND
2
USB_VBUS
3
D-
4
D+
5
GND
6
KEY_GND
7
AUX_L
8
AUX_R
9
AUX_GND
10
RE_0
11
RE_1
12
KEY_1
13
KEY_0
14
SIRCS
15
LCD_DATA
16
LCD_CE
17
LCD_CLK
18
ILL(FP+B)
19
PANEL_SW
20
GND
NESW505DT
-A0-UV
LED901
D902
RKZ5.1B2KGP1
VDR906
VDR908
R999
10
R918
0
LED940
R937
R900
0
10
R944
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]
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]
DATA
CE
CE
CLK
DATA
CLK
DATA
CLK
S[4]
S[3]
COM[4]
COM[3]
COM[2]
COM[1]
S[2]
S[3]
COM[4]
COM[3]
COM[2]
COM[1]
S[2]
S[1]
3/REP
4/SHUF
5
6/PAUSE
DSPL/SCRL
ZAP
AUX
(RING ILLUMINA
TOR)
(RING ILLUMINA
TOR)
(RING ILLUMINA
TOR)
(LCD BACK LIGHT)
1/ALBUM –
2/ALBUM +
SOURCE/OFF
/MODE
PUSH ENTER/
ROTARY ENCODER
SELECT
(ILLUMINA
TOR)
(ILLUMINA
TOR)
(ILLUMINA
TOR)
(ILLUMINA
TOR)
(ILLUMINA
TOR)
(ILLUMINA
TOR)
ZAP
SOURCE/OFF
(DISC SLOT
INDICA
TOR)
D+
D–
D–
4P
GND-USB
VBUS-USB
(USB)
AF/TA/PTY
PTY
/MODE
(VOLUME)
1.2k
820
SML-D12V8WT86SN
1k
1.2k
2.2k
1.2k
1k
1k
1.8k
SML-D12V8WT86SN
SML-D12V8WT86SN
820
SML-D12V8WT86SN
820
SML-D12V8WT86SN
SML-D12V8WT86SN
820
150
150
150
150
220
220
SML-D12V8WT86SN
SML-D12V8WT86SN
SML-D12V8WT86SN
SML-D12V8WT86SN
SML-D12V8WT86SN
SML-D12V8WT86SN
SML-D12V8WT86SN
SML-D12V8WT86SN
SML-D12V8WT86SN
SML-D12V8WT86SN
SML-D12V8WT86SN
820
820
820
820
1.8k
1.2k
SML-D12V8WT86SN
SEEK+
SEEK+
SEEK–
SEEK–
4-8. SCHEMATIC DIAGRAM – KEY Section –
(Page 20)
CDX-GT450U/GT454US
23
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOAD DUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
OUT-FL–
OUT-FL+
OUT-RL–
OUT-RL+
IN-RL
S-GND
IN-RR
OUT-RR+
OUT-RR–
OUT-FR+
OUT-FR–
DIAG
ANT-REM
AMP-REM
SERVO+3.3V
MECHA+6V
VP
BU+B
I2C_SIO
I2C_SCK
VP2
P-GND1
SVR
IN-FL
IN-FR
BEEP
P-GND3
VP1
STB
P-GND4
RST
CRES
AUDIO+B
(8.5V)
(8.5V)
GND
PANEL+B
CBU
FL
RL
RR
VP
FR
I
2
C BUS
• IC Block Diagrams
IC301 TDF8556AJ/N3 (MAIN Board (1/3))
IC402 TK11133CSCL-G (MAIN Board (1/3))
1
2
3
5
4
CONT
GND
NOISE
VIN
VOUT
OVERHEAT &
OVERCURRENT
PROTECTION
BAND GAP
REFERENCE
CONTROL
CIRCUIT
CDX-GT450U/GT454US
24
AMRFIN 1
AMRFDEC 2
FMIN2 3
FMIN1 4
LOUT 8
ROUT 9
MPXOUT 13
RSSI 14
XTAL2 15
XTAL1 16
GNDAUD 10
GNDRF 5
VCC2 6
AMRFAGC 7
AMIFAGC2 11
MPXIN 12
AMSELOUT2
32
AMSELOUT1
31
AMIFAGC1
30
AMSELIN2
29
PLL
25
VCODEC
24
VREF
20
SDA
19
SCL
18
GNDD
17
GND
23
AMSELIN1
28
DAV N
27
PLLREF
26
VCC1
22
VREGSUP
21
AM
TUNER
FM
TUNER
OUTPUT
PLL
TUNING
SYSTEM
I2C BUS
POWER
SUPPLY
STEREO DECODER
HIGH CUT
SOFT MUTE
NOISE BLANKER
SIGNAL
IMPROVEMENT
CONTROL
BANDWIDTH
CONTROL
RDS
DEMODULATOR
AND
DECODER
IC001 TEF6617T/V1/S470,518 (MAIN Board (3/3))
IC601 BD9070FP-E2 (MAIN Board (2/3))
PVIN
24
16
NCO
23
INV
18
VDD
15
NCO
14
OVP
VDD
17
FLG 10
NCO 11
HSDSW 12
HSDSW 13
HSDSW 13
NCO
20
TAB
27
FB
19
SW
22
SW
21
VIN 2
VREGB 1
HSDCTL 9
SYN/EN 8
RT 7
GND 6
TAB 26
PGND 5
NCO 4
NCO 3
CONTROL
LOGIC
DRV
LOGIC
UVLO,
TSD,
HSD UVLO
HSD UVLO
UVLO, TSD,
OVP, OCP, SCP
CHARGE
PUMP
SOFT
START
OCD
SLOPE
OSC
VREF
SYNC
VREG
UVLO
TSD
+
–
–
+
+
–
+
HSD
UVLO
SCP
–
+
SCP
OVP
OCP
+
–
OVP
R
S
PWM
ERR
PVIN
25
–
+
OCP
UVLO
TSD
DRV
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