Sony CDX-GT450U / CDX-GT457UE / CDX-GT500U / CDX-GT500US / CDX-GT505U / CDX-GT50UMS Service Manual ▷ View online
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
21
21
12
15
A
6
B
8
E
14
9
4
3
F
D
H
7
2
10
I
G
11
C
5
13
1
BOARD
A
CN901
KEY
(1/3)
BOARD
MAIN
2
(2/3)
BOARD
MAIN
3
4
MAIN
(2/3)
BOARD
3
IC B/D
IC B/D
0
0
0
0
0
0
0
0
0
0
0
0
0(1.3)
8.5(6.8)
0(4.2)
8.5(6.8)
3.1(2.9)
1.1(2.9)
3.1(2.9)
0(1.2)
0(1.2)
8.5
0(1.7)
2.2
3.8
3.7
3.8
5.6
0.3(1.9)
8.5
3(3.6)
7.1
3.9(5)
3.4
3.1(3.3)
6.2
3.1(3.3)
6.2
(AEP,UK)
3.9
3.9
3.9
3.6
3.9
3.6
3.9
3.2
3.9
3.6
3.2
3.6
3.9
8.5
3.6
3.1
3.1
8.4
3.9
3.6
3.6
3.6
AEP,UK,RU MODEL
(EXCEPT AEP,UK)
EXCEPT AEP,UK,RU MODEL
0
MAIN BOARD (3/3)
IC401
IC001
50V
C410 10
BD3467FV-E2
IC401
ELECTRONIC VOLUME
BUS_LCH
BUS_RCH
TU_LCH
TU_RCH
AUX_LCH
AUX_GND
AUX_RCH
DP1
DN
DP2
EP1
EN
EP2
FP1
FN1
FN2
FP2
NCO
NCO
NCO
MUTE
I2C_SCK
I2C_SIO
GND
FIL
VCC(8.5V)
AU_OUT_RCH
AU_OUT_LCH
NCO
AU_IN_SUB
AU_IN_RL
AU_IN_RR
AU_IN_FL
AU_IN_FR
AU_OUT_FR
AU_OUT_FL
AU_OUT_RR
AU_OUT_RL
AU_OUT_SR
AU_OUT_SL
FB403
100p
C423
50V
10
C422
50V
10
C425
220
R404
R402
220
100p
C412
220
R423
10k
R411
R403 10k
100p
C426
0.1
C414
10k
R405
50V
10
C420
100p
C421
220
R410
FB402
10k
R424
470
R415
2.2k
R419
C158
1000p
1000p
C442
12k
R418
0
R420
470
R416
CAM003
1
C436
1
C437
C443
1
C444
1
0
L402
10k
R438
50V
10
C419
0
R432
0
R431
0
R430
C100
0.1
50V
10
C413
10k
R422
10k
R409
50V
10
C424
0
R116
0
R435
0
R436
R406
0
12k
R417
RTAN140M-T111-1
Q401
MUTE
RTAN140M-T111-1
Q402
MUTE
RTAN140M-T111-1
Q403
MUTE
RTAN140M-T111-1
Q404
MUTE
RTAN140M-T111-1
Q405
MUTE
RTAN140M-T111-1
Q406
MUTE
50V
2.2
C417
50V
2.2
C418
0
R441
1
C438
220
R407
220
R421
D117
D118
C101
1000p
C203
1000p
D1
10
RKZ6.8B2KGP1
D108
RKZ6.8B2KGP1
D107
RKZ6.8B2KGP1
D106
RKZ6.8B2KGP1
D105
RKZ6.8B2KGP1
RKZ6.8B2KGP1
D104
RKZ6.8B2KGP1
D103
RKZ6.8B2KGP1
D102
RKZ6.8B2KGP1
D101
RKZ18B2KGP1
D109
RKZ6.8B2KGP1
D116
0
R434
0
R433
16V
220
C415
1
2
3
4
5
6
7
8
9
10
11
12
13
13P
CN402
AU_GND
AU_IN_RCH
AU_GND
AU_IN_LCH
AU_GND
AU-SUB_CH
AU_GND
AU_RL_CH
AU_FL_CH
AU_GND
AU_GND
AU_FR_CH
AU_RR_CH
20P
CN102
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
D119
RKZ6.8B2KGP1
C103
0.1
0
R122
0
R121
L405
0
R13
100
J1
JW126
R15
0
JW102
16V
47
C28
2.2
C13
3.3uH
L1
CAM002
JW148
4.7k
R11
33p
C8
470k
R2
0.1
C26
1000p
C5
4MHz
X1
JW147
15p
C6
470k
R1
0.01
C22
0.1
C24
R16
0
R3
0
560uH
L7
1000p
C1
L2
2.2uH
JW138
0.47
C16
0.1
C9
0.22
C12
1
C21
L6
FM MIX
1
2
3
4
6
0.01
C20
0.1
C25
12p
C18
R14
100
JW137
VR1
22
R12
TEF6617T/V1/S470,518
IC001
TEF6617T/V1/S470/M5,518
PHASE LOCKED LOOP(PLL)
AMRFIN
AMRFDEC
FMIN2
FMIN1
GNDRF
VCC2
AMRFAGC
LOUT
ROUT
GNDAUD
AMIFAGC2
MPXIN
MPXOUT
RSSI
XTAL2
XTAL1
GNDD
SCL
SDA
VREF
VREGSUP
VCC1
GND
VCODEC
PLL
PLLREF
TEST
AMSELIN1
AMSELIN2
AMIFAGC1
AMSELOUT1
AMSELOUT2
0.1
C17
560uH
L8
0.01
C23
0.01
C19
0.1
C27
11
12
13
14
12
13
14
15
16
18
19
17
20
21
21
BUS5
BUS6
CL076
CL069
CL061
CL066
CL074
CL065
CL079
CL072
CL073
CL073
CL068
CL070
CL077
CL064
CL078
CL067
CL071
CL075
CL063
J401
2P
G
J402
4P
C405
0
ILL+B
USB_D+
USB_D-
RE0
RE1
KEY1
KEY0
SIRCS
LCD_DATA
LCD_CE
LCD_CLK
RE1
KEY1
KEY0
SIRCS
LCD_DATA
LCD_CE
LCD_CLK
NOSE_SW
CD MECHANISM
(2/2)
(MG-101N)
UNIT
(CHASSIS)
(CHASSIS)
(ANTENNA)
REAR/SUB
R
AUDIO OUT
L
-1
-2
-4
-3
-1
-2
R
REAR/SUB
L
R
FRONT
AUDIO OUT
L
40
39
38
37
36
35
34
7
6
5
4
3
2
1
33
32
30
31
8
27
28
29
9
10
11
12
13
14
24
17
25
26
23
22
21
20
19
18
15
16
18
7
6
5
4
3
2
1
17
20
19
32
30
31
8
27
28
29
9
10
11
12
13
14
24
25
26
23
22
21
15
16
• See page 17 for Waveforms. • See page 24 for IC Block Diagrams.
4-6. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
(Page 23)
(Page 20)
(Page 20)
(Page 19)
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
22
22
•
: Uses unleaded solder.
4-7. PRINTED WIRING BOARD – KEY Section –
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
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR
MODEL
MODEL
AR MODEL
AR
MODEL
MODEL
AR MODEL
AR MODEL
AR
MODEL
MODEL
AR MODEL
AR
MODEL
MODEL
AR
MODEL
MODEL
AR
MODEL
MODEL
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR
MODEL
MODEL
AR
MODEL
MODEL
AR MODEL
AR MODEL
AR MODEL
AR
MODEL
MODEL
EXCEPT
AR MODEL
AR MODEL
AR
MODEL
MODEL
AR MODEL
LED920
LED928
LED929
LED923
LED924
LED926
1
52
LSW905
LSW906
LSW907
LSW908
LSW909
LSW910
LSW911
LSW912
LSW905
LSW906
LSW907
LSW908
LSW909
LSW910
LSW911
LSW912
LED902
LED903
S901
LED904
LED905
LED904,905
LED906 LED907
LED908 LED909
LED910
LED91
1
LED912
LED913
LED914
LED915
LED916
LED917
LED918
LED919
LED921
LED925
LED931
LED932
LED933
LED934
LED935
LED936
LED937
LED938
LED939
LED940
R920
R921
R939
R942
R956
R957
R960
R961
R962
S902
R963
S903
LED910,911,
S903
LED912,913,
S905
LED939,940,
S904
LED916,917,
S907
LED914,915,
S902
LED918-921,
S906
S904
R965
S905
R966
S906
S907
R971
R979
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
B C E
Q903
E C B
Q904
FB901
FB902
FB903
VDR906
VDR908
R900
R904
R905
R906
R907
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
R935
R937
C901
C902
C903
C904
R940
R941
C906
R943
C909
R945
R946
R948
R949
C910
C911
C912
C915
R951
C916
1
6
5
7
4
CN902
R952
R953
R954
R955
R958
R959
R964
R967
R968
R969
R970
R972
R973
R974
R975
R976
R978
R980
R981
R982
R985
R986
R987
R989
R990
R991
R994
R995
R998
R999
D901
D902
D907
D908
D909
D91
1
D912
D916
LED902,903,
S901
Z
2/ALBUM +
1/ALBUM –
m
.
SEEK–
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
(E,AR,EA,MX,IND)
AF/TA/PTY
(AEP,UK,RU)
ZAP
DISC SLOT
INDICATOR
LED901
LCD BACK
LIGHT
(ILLUMINATOR)
LED906,907,931,932,935,936
(ILLUMINATOR)
LED908,909,933,934,937,938
(RING ILLUMINATOR)
LED923-926,928,929
(Page 18)
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
23
23
11
2
F
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
8.9
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
0
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
0
5.2
4.7
AR MODEL
EXCEPT
AR MODEL
AR MODEL
AR MODEL
0
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR MODEL
AR MODEL
*
6
*
2
*
5
*
3
*
4
*
1
*
7
*
8
*
9
*
10
*
11
(EXCEPT GT50UMS/GT457UE)
(GT50UMS)
(GT457UE)
(GT457UE)
(GT457UE)
(GT457UE)
(GT457UE)
(GT457UE)
(GT457UE)
(GT457UE)
(GT457UE)
(GT457UE)
(GT457UE)
(EXCEPT GT50UMS/GT457UE)
(GT50UMS)
(EXCEPT GT457UE)
(GT50UMS)
(EXCEPT GT50UMS/GT457UE)
(EXCEPT GT457UE)
(EXCEPT GT457UE)
(EXCEPT GT457UE)
(EXCEPT GT457UE)
(GT50UMS)
(EXCEPT GT50UMS/GT457UE)
(GT50UMS)
(EXCEPT GT50UMS/GT457UE)
(GT50UMS)
(EXCEPT GT50UMS/GT457UE)
(GT457UE)
(EXCEPT GT50UMS/GT457UE)
(GT457UE)
(GT50UMS)
*
12
*
13
(EXCEPT GT50UMS/GT457UE)
(GT50UMS)
*
5
*
2
*
3
*
1
*
4
*
5
*
11
*
13
*
12
*
12
*
10
*
1
*
1
*
1
*
1
*
1
*
9
*
3
*
6
*
6
*
6
*
6
*
7
*
8
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
2
*
2
*
3
*
3
*
10
*
5
*
1
(AEP,UK,RU)
(E,AR,EA,MX,IND)
SEEK+
R904
M
>
M
>
M
>
>
m
.
m
.
Z
m
.
KEY BOARD
IC901
IC902
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
C904
0.47
C906
0.1
R906
150
R940
150
R986
100
RE901
2
45
3
1
6
7
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
R960
150
R966
R965
150
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
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
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
RT6N140C-TP-1
Q903
LED DRIVER
RT6N140C-TP-1
Q904
LED DRIVER
0
R905
LED928
LED925
LED929
LED919
LED921
LED914
LED916
LED905
LED903
LED934
LED938
LED909
LED932
LED936
LED907
LED912
LED910
LED923
SML-D12D8WT86SQ
LED924
SML-D12D8WT86SQ
LED926
SML-D12D8WT86SQ
LED915
SML-D12D8WT86SQ
LED917
SML-D12D8WT86SQ
LED904
SML-D12D8WT86SQ
LED902
SML-D12D8WT86SQ
LED933
SML-D12D8WT86SQ
LED937
SML-D12D8WT86SQ
LED931
SML-D12D8WT86SQ
LED935
SML-D12D8WT86SQ
LED906
SML-D12D8WT86SQ
LED913
SML-D12D8WT86SQ
LED91
1
SML-D12D8WT86SQ
R961
150
R964
150
R981
1.8k
R982
2.2k
R963
R967
R984
R985
R970
R971
R978
R994
R942
R976
R948
R958
R959
R952
R953
R996
R990
R991
R983
R972
1.2k
R973
1.2k
R949
1.2k
R951
1.2k
R941
1.2k
R943
1.2k
R935
1.2k
R956
1.5k
R957
1.8k
R954
1.5k
R955
1.8k
R979
1.2k
R987
1.5k
R989
1.5k
R968
220
R969
220
R974
R975
1000p
C915
1000p
C916
RKZ6.8B2KGP1
D921
LED908
SML-D12D8WT86SQ
LED918
SML-D12D8WT86SQ
LED920
SML-D12D8WT86SQ
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
R980
1.8k
R918
0
LED940
R937
LED939
SML-D12D8WT86SQ
R900
0
R907
0
R939
1.2k
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
1
(RING ILLUMINA
TOR)
(RING ILLUMINA
TOR)
(RING ILLUMINA
TOR)
(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)
(ILLUMINA
TOR)
(ILLUMINA
TOR)
(ILLUMINA
TOR)
(ILLUMINA
TOR)
(ILLUMINA
TOR)
(ILLUMINA
TOR)
ZAP
ZAP
SOURCE/OFF
SOURCE/OFF
(DISC SLOT
INDICA
TOR)
(DISC SLOT
INDICA
TOR)
D+
D–
D–
4P
GND-USB
VBUS-USB
(USB)
AF/TA/PTY
PTY
/MODE
/MODE
(VOLUME)
R937,942,978
R952
220
R970
330
150
R962,963,966,967
100
100
R971
180
180
R953,958,959
330
330
SML-D12V8WT86SN
R948,975,976,994
LED903,905,907,909,910,912,
LED914,916,919,921,925,928,
LED929,932,934,936,938,940
220
180
R974
820
R983,984
820
R985
SML-D12Y8WT86SP
SML-D12P8WT86SJ
820
680
1k
1k
1.2k
820
150
220
220
680
820
1.2k
1.8k
1.2k
2.2k
R991
1.2k
680
R990,996
270
270
270
1k
1.5k
SEEK+
SEEK–
SEEK–
SEEK+
SEEK–
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
4-8. SCHEMATIC DIAGRAM – KEY Section –
(Page 21)
Ver. 1.1
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
24
24
• IC Block Diagrams
IC301 TDF8556AJ/N3 (MAIN Board (1/3))
(Except AEP, UK model)
IC301 TDF8556AJ/N3/M5 (MAIN Board (1/3))
(AEP, UK model)
IC402 TK11133CSCL-G (MAIN Board (1/3))
IC001 TEF6617T/V1/S470,518 (MAIN Board (3/3)) (Except AEP, UK model)
IC001 TEF6617T/V1/S470/M5,518 (MAIN Board (3/3)) (AEP, UK model)
IC001 TEF6617T/V1/S470/M5,518 (MAIN Board (3/3)) (AEP, UK model)
IC601 BD9070FP-E2 (MAIN Board (2/3))
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
1
2
3
5
4
CONT
GND
NOISE
VIN
VOUT
OVERHEAT &
OVERCURRENT
PROTECTION
BAND GAP
REFERENCE
CONTROL
CIRCUIT
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
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
Click on the first or last page to see other CDX-GT450U / CDX-GT457UE / CDX-GT500U / CDX-GT500US / CDX-GT505U / CDX-GT50UMS service manuals if exist.