Sony CDX-GT620U / CDX-GT627UE / CDX-GT670U / CDX-GT670US Service Manual ▷ View online
CDX-GT620U/GT627UE/GT670U/GT670US
CDX-GT620U/GT627UE/GT670U/GT670US
21
21
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM – MAIN Section –
1 ANT
SCL
SDA
CDMON
CDON
CDON
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
I2C BUS CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
IC300
SYSTEM CONTROL
IC501 (1/2)
CN300
(REAR)
(FRONT)
(REAR)
(FRONT)
BATT
6 CD-LCH
5 CD-RCH
5 CD-RCH
6
S-METER
7
TUN MUTE
93 VSM
5
QUALITY
9
RDS OUT
88 QUALITY
8
MUTE CON
75 TUATTIN
18 DAVN
BU+3.3V
AEP,UK,RU MODEL
87 RDS ON
20 CDM ON
51 CD ON
22 Z MUTE
51 CD ON
22 Z MUTE
11
VDD+5V
4
L-CH
3
R-CH
BU+3.3V
10
VCC+8.3V
86 TUATT
85 NSMASK
CD ON
CDM ON
CD L
CD R
4 TU-LCH
3 TU-RCH
3 TU-RCH
CD-RCH
A ATT
TU-RCH
AUDIO+8.3V
AUDIO+8.3V
19
SAOUT
18
SADA
5
3
3
OUT FL+
OUT FL–
9
7
7
OUT RL+
OUT RL–
29
27
27
AMP REM
R-CH
ANT REM
37
AUDIO+B
35
VP
20
VP1
6
VP2
BU+B
31
33
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
28
MUTE
2 SDA
AUDIO+8.3V
BU+5V
SERVO+3.3V
MECHA+6V
PANEL+B
BU+5V
SERVO+3.3V
MECHA+6V
PANEL+B
4 SCL
SDA
SCL
SCL
16 BEEP
22 STB
25 DIAG
22 STB
25 DIAG
13
7
10
12
11
16
1
9
9
2
4
3
5
6
6
29
30
30
SCL
SDA
SCL
SA CLK
SA DATA
SA IN
SDA
SCL
SDA
59
56
56
VOLATT
ATT
29
I2C SCK
30
I2C SIO
BUIN
12 IN RR
FL+
FL–
FL–
RL+
RL–
RL–
FR+
FR–
RR+
RR–
FR–
RR+
RR–
AMP-REM
ANT-REM
ANT-REM
ACC
17
SACLK
MUTE
Q432
AUDIO OUT
REAR
MUTE CONTROL
SWITCH
Q491,492
19
42
SYSRST
RESET
SYSRST
55
ACC IN
ACCESSORY CHECK
Q702
BATT
OVER VOLTAGE
CHECK
Q605
LOW VOLTAGE
CHECK
Q601,602
MUTE
Q460
MUTE
Q401
MUTE CONTROL
SWITCH
Q411,412
MUTE
Q440
SA IN
SA DATA
83
SA IN
89
SADATA
SA CLK
90
SA CLK
D491
F901
R-CH
23
24
24
OUT–RL
OUT–RR
R-CH
L
R
J652
AUDIO OUT
FRONT
R-CH
25
26
26
(SUB)
R-CH
22
OUT–FL
OUT–FR
R-CH
L
R
(SUB)
AUDIO OUT
SUB
R-CH
L
R
21
SUBOUT–L
SUBOUT–R
D353
D602
BATT
D603
DISPLAY
SECTION
A
BATT
TU VDD+5V
REG
Q3
NOISE MASK
SWITCH
Q1
RDS+3.3V
SWITCH
Q50,51
RDS DEMODULATOR
IC50
15
E2PVDD
13
SCL
16
E2PSCL
17
E2PSDA
14
SDA
BU+5V
BU+3.3V
REG
IC681
11 IN RF
TEL ATT
54
TELATT
TELEPHONE ATTENATION CHECK
Q701
14
ILL
52
ILLU IN
57
DIAG
58
AMPSTB
26
BEEP
AUX
J901
9 AUX-LCH
7 AUX-RCH
7 AUX-RCH
AUX-RCH
AUX-RCH
CD-RCH
TU-RCH
ZMUTE
44 WAKE UP
WAKE UP
23 EJECT OK
EJECT OK
36 MC RX
MC RX
35 MC TX
MC TX
5 VBUS ON
VBUS ON
50 IPDET
IP DET
Z MUTE
SYS RST
MECHA+6V
BU+3.3V
BU+3.3V
SERVO+3.3V
B/U CHECK
RXD
TXD
DR+6V
BU+3.3V
A+3.3V
CDON
CDMON
ZMUTE
WAKE UP
WAKE UP
SYSRST
EJECT OK
EJECT OK
BU IN
IPOD CHECK
VBUS ON
VBUS ON
IPDET
MC TX
MC RX
ATT
DISPLAY
SECTION
B
CD
MECHANISM
UNIT
(MG-101I)
(1/2)
11
SCL
15
INTN
16 MPX
XTO
XTI
12
SDA
SCL
SDA
SDA
1
VDDA
7
VDDD
10
9
X50
8.664MHz
BUIN
ILLUMINATION CHECK
Q703
30
BATT
• Signal Path
• R-CH is omitted due to same as L-CH.
J
: CD PLAY
K
: FM
L
: AUX
f
: AM/MW/LW/SW
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
J
J
K
L
L
K
f
K
• Abbreviation
RU : Russian model
RU : Russian model
(Page 22)
(Page 22)
CDX-GT620U/GT627UE/GT670U/GT670US
CDX-GT620U/GT627UE/GT670U/GT670US
22
22
RESET
MAIN
SECTION
A
MAIN
SECTION
B
13
15
95
1
2
2
100
94
4
SYSTEM CONTROL
IC501 (2/2)
USB POWER
CONTROL SWITCH
IC804
FL900
FLUORESCENT
INDICATOR TUBE
KEYIN0
CLK
CS
CS
FL DATA
FL CLK
FL CE
28
27
35
34
26
GRID1
GRID2
GRID3
33
1G
13
RESET
32
Q1
31
Q2
30
Q3
F+
F–
KEYIN1
82 RE–IN0
81 RE–IN1
81 RE–IN1
92 KEYACK1
43 RC IN1
91 KEYACK0
97 RC IN0
7 NOSE SW
SIRCS
ATT
12 RESET
6 DOORIND
FL VH+12V
OSCOUT
OSCIN
39
FL ON
X501
11.06MHz
11
12
10
3G
39
•
38
2
•
1
2G
DIO
PANEL+B
BU+3.3V
BATT
KEY MATRIX
S201,901–915
10
11
XOUT
XIN
X502
32.768kHz
28
SYNC OUT
25
USB OVER
24
DOOR SW
BU+3.3V
10K
S501
FREQUENCY
SELECTOR
9K
3 2C
27
USB ON
BATT
40
DD ON
(VOLUME)
PUSH ENTER/ SELECT
RE901
ROTARY
ENCODER
REMOTE CONTROL
SIGNAL RECEIVER
IC971
S600
(NOSE DET)
RESET
IC602
FL+3.3V
FL+12V
FL+3.3V
BATT
R920
R918
R919
GT620:AEP,UK,RU
GT627UE
R917
PANEL B+
IN
V–BUS
OUT
4 EN
5 OC
2
•
3
6
•
7
•
8
FL DRIVE
Q991
FL DRIVE
Q992
LED DRIVE
Q942
LED DRIVE
Q941
FL DRIVE
Q993
FL DRIVE
Q943
7
VH
8
VDD(3.3V)
FL+3.3V
REG
IC802
S103
RESET
LED202
;
LED201
CD
INDICATOR
D982
D804
D810
L802
D/D CONVERTER
CONTROL SWITCH
IC805
D998
V-BUS
USB SELECT SWITCH
IC980
Q503
S918
(DOOR)
CD
MECHANISM
UNIT
(MG-101I)
(2/2)
D997
FL +12V
REG
IC801
7 1C
5 2A
2 1B
2 1B
6
2B
USB D+
USB D–
USB D–
1
1A
80
F AUX
D503
3 CLR
2 B
5
Q
D/D CONVERTER
VBUS POWER SWITCH
IC803
6
DRV
1 RC
J370
(REMOTE IN)
70 AREASEL2
GT670U:E/GT670US
DOOR INDICATOR
CONTROL SWITCH
Q900
USB POWER
SWITCH
Q807
USB POWER
CONTROL SWITCH
Q808
USB+9.3V
REG
Q806
USB+5V
REG
Q801
VOLTAGE
DETECT
Q810
4
3
2
1
3
2
1
J11
J11
(USB)
LED951–965
LED941–944
LED991–994
GT620U:CND/
GT670U/GT670US
GT670U/GT670US
GT620U:US,CND/GT627UE
/GT670U/GT670US
/GT670U/GT670US
LED945–948,991
GT620U:AEP,UK,
RU/GT627UE
RU/GT627UE
GT620U:AEP,UK,RU
/GT627UE
/GT627UE
LED901–915
GT620U:AEP,UK,RU
/GT627UE
/GT627UE
USB POWER
CONTROL SWITCH
Q809
D807
• Signal Path
c
: USB
c
c
c
c
• Abbreviation
CND : Canadian model
RU : Russian model
CND : Canadian model
RU : Russian model
5-2. BLOCK DIAGRAM – DISPLAY Section –
(Page 21)
(Page 21)
Ver. 1.1
CDX-GT620U/GT627UE/GT670U/GT670US
CDX-GT620U/GT627UE/GT670U/GT670US
23
23
For Schematic Diagrams.
Note:
• All capacitors are in
• All capacitors are in
μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
• f :
internal
component.
• C : panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
(
)
:
AM/MW/LW/SW
<
> : CD PLAY
*
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
J
: CD PLAY
F :
FM
f :
AM/MW/LW/SW
L :
AUX
c :
USB
• Abbreviation
CND :
CND :
Canadian
model
EA
: Saudi Arabian model
RU :
Russian
model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : parts extracted from the conductor side.
• a
• X : Parts extracted from the component side.
• Y : parts extracted from the conductor side.
• a
:
Through
hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Note:
The components identi-
fi ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
The components identi-
fi ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
• Waveforms
– MAIN Board –
– MAIN Board –
• Indication of transistor.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
• Abbreviation
CND :
CND :
Canadian
model
EA :
Saudi
Arabian
model
RU :
Russian
model
These are omitted.
C B
E
1.1 Vp-p
8.664 MHz
0.7 Vp-p
32.768 kHz
1.5 Vp-p
11.06 MHz
0.2 V/DIV, 10
μsec/DIV
0.5 V/DIV, 0.1
μsec/DIV
0.5 V/DIV, 0.1
μsec/DIV
IC50
(XTI)
IC501
(XIN)
IC501
RH (OSC IN)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
CDX-GT620U/GT627UE/GT670U/GT670US
CDX-GT620U/GT627UE/GT670U/GT670US
24
24
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
1-875-352-
(11)
11
C504
R535
R54
4
R545
R546
R555
GT627UE
GT670U/GT670US
GT670U/GT670US
GT627UE
EXCEPT
AEP,UK,RU
MODEL
AEP,UK,RU
MODEL
GT620U
/GT670U:EA
GT620U
/GT670U
/GT670US
C15
C515
C514
JC445
JC446
JC447
JC448
JC505
JC507
JC2
02
JC508
R537
R539
GT670U:E/GT670US
GT620U:AEP,UK,RU
/GT670U/GT670US
GT620U:US,CND
/GT627UE
GT670U
/GT670US
R541
C319
FMB3
FMB4
FMB5
Q807
IC681
JC510
JC511
JC512
JC513
JC514
JC515
FMB8
Q801
FMB11
JC800
FMB13
C704
C705
R525
AEP,UK,RU MODEL
EXCEPT AEP,UK,RU MODEL
C442
C31
3
R515
C827
Q420
C422
Q50
JC993
R447
IC401
R849
R448
C445
D802
IC804
R824
JC441
JC442
D491
JC440
R604
D803
R405
D807
C423
L407
C426
L370
R825
C462
C452
R840
R563
C419
R517
R519
JC506
R491
R839
C825
R842
R521
JC500
R523
C432
R524
D115
R531
R412
R902
R903
R532
JC413
JC443
R533
JC700
IC803
R830
R536
C505
GT620U
/GT627UE
D702
JC404
C70
3
R538
R540
D704
R701
YEL
D707
R703
R704
R702
Q701
D706
R706
Q702
Q440
R708
R707
R542
C810
Q1
R1
JC201
JC412
R3
R2
R4
R5
R844
R8
R9
R101
R543
Q3
C307
IC602
C305
R371
R37
0
R601
JC400
C309
R501
R502
D2
R503
C805
C3
D504
R10
C6
C7
JC1
R504
D153
JC504
R599
Q452
Q432
C807
R450
Q460
R827
C301
JC705
C325
YEL
D105
C330
C304
C706
D503
C151
C707
Q806
L805
(CHASSIS)
JC503
R571
D109
L410
C823
R402
R570
Q470
R462
R472
R401
D705
D152
D708
D108
D15
1
D110
C501
C154
C155
R547
D15
6
C157
L151
R548
R152
R549
R151
R153
C8
IC801
R831
R154
C702
C152
R431
C418
C415
D111
R155
D113
R303
R562
C709
R83
4
R833
Q401
JC501
Q402
C508
C320
R403
R404
C50
9
R567
R710
R566
C51
1
R550
C510
C513
R559
R560
C512
R561
R829
R451
D106
D112
R850
D107
D810
R102
IC501
L401
JC410
R551
R848
R301
C31
7
Q605
C493
R569
Q703
Q51
JC401
L901
R711
R603
C472
C463
R351
R813
R463
R900
R906
R905
R901
Q900
Q411
L406
L405
JC31
R822
D353
R485
Q412
R680
C999
R286
C808
JC411
R832
C484
C473
C834
C412
C600
JC29
JC30
R302
R430
R452
R811
JC903
C455
R812
C453
C318
L902
C494
C312
D603
D602
Q602
R61
Q601
IC802
R846
R473
R847
C833
JC402
R600
Q808
R449
R558
R58
L4
R904
C832
L409
R442
C315
C402
R518
Q491
R494
JC350
R35
0
Q492
R511
R493
R496
R495
C498
C497
C362
EXCEPT AEP,UK,RU MODEL
JC403
R505
C361
R512
R421
R461
R13
R12
R809
1
5
C57
R552
C443
R557
R471
R60
R56
4
R53
C56
IC50
R810
R57
R52
R553
L50
R510
R509
R508
R507
D809
R823
C50
3
Q809
C831
C821
C710
Q810
R852
R851
C55
C60
R54 C54
C52
C50
R55
C58
C953
C51
C53
L3
AEP,UK,RU MODEL
L2
R15
JC50
C804
R828
C814
C813
R826
C811
C816
C812
JC904
JC520
JC521
R800
IC805
C802
JC525
C50
2
S501
FREQUENCY
SELECTOR
9k
10k
JW11
JW15
JW18
JW76
JW5
C683
CN90
1
JW41
JW156
JW1
58
JW6
8
JW69
JW70
JW71
JW164
JW10
JW8
JW14
JW28
JW25
JW24
JW23
JW57
JW163
JW59
JW58
JW72
JW151
JW49
JW43
JW48
JW46
JW33
JW3
0
JW31
JW140
JW7
JW124
JW1
19
JW141
JW128
JW144
JW143
JW132
JW34
JW86
JW87
JW89
JW91
JW92
JW2
2
JW17
JW16
JW12
JW13
JW27
JW45
JW44
JW47
JW52
JW51
JW107
JW165
JW9
4
JW148
JW95
JW129
JW131
JW116
JW123
JW39
JW4
0
JW1
59
JW112
JW120
JW121
JW130
JW126
JW142
JW127
JW110
JW109
JW134
JW105
JW99
JW98
JW97
JW96
JW83
JW85
JW73
JW26
JW88
JW149
JW150
JW90
JW82
JW81
JW56
JW55
JW162
JW154
JW1
57
JW6
5
JW77
JW74
JW38
JW152
JW111
JW125
JW139
JW138
JW137
JW136
JW135
JW133
JW118
JW147
JW79
JW78
JW2
JW1
JW42
JW117
JW1
61
JW50
JW19
JW60
JW75
JW66
JW67
JW145
JW54
JW53
JW9
JW3
JW6
JW35
JW62
JW63
JW64
JW61
JW146
JW155
JW153
JW104
JW102
JW103
JW160
JW1
14
JW115
JW113
JW101
JW36
JW37
JW32
D607
S103
S103
X501
RESET
TU1
C303
D303
D304
D308
J652
L
-1
-2
-3
-4
-5
-6
R
D307
J370
(REMOTE IN)
D311
D312
S600
S600
(NOSE DET)
CD MECHANISM
UNIT
(MG-101I)
(1/2)
L801
L803
D310
L802
C624
C1
AEP,UK,RU
MODEL
AEP,UK,RU
MODEL
AEP,UK,RU
MODEL
C421
R705
D302
D301
C701
C2
C5
C441
IC300
J1
(ANTENNA)
C461
C81
8
C471
C43
1
C451
C708
C822
C153
X501
C40
7
CN35
0
C40
6
D309
D30
6
R712
D30
5
X502
L300
C819
C806
C817
C485
C48
6
D804
C495
C401
C496
X50
C61
C49
1
CN300
F901
CN370
CN35
1
JW106
C364
C363
C403
C803
C409
C316
C314
C306
C308
C80
9
JW29
JW84
SUB
L
R
REAR
AUDIO OUT
L
R
FRONT
SUB BOARD CN202
EXCEPT AEP,UK,RU model
AEP,UK,RU model
A
5-3. PRINTED WIRING BOARD – MAIN Section –
•
: Uses unleaded solder.
(Page 29)
Ref. No. Location
• Semiconductor Location
D2
F-2
D105
I-4
D108
I-3
D109
I-3
D110
I-3
D111
H-3
D112
I-3
D113
H-3
D115
I-6
D156
I-2
D301
D-7
D302
C-7
D303
D-8
D304
C-8
D305
C-5
D306
C-5
D307
C-5
D308
C-6
D309
C-6
D310
C-6
D311
D-7
Ref. No. Location
D312
C-6
D353
F-7
D491
D-5
D503
F-5
D504
E-5
D602
B-9
D603
B-9
D607
D-8
D702
C-7
D704
C-8
D705
C-8
D706
C-8
D707
D-8
D708
C-7
D802
F-9
D803
F-9
D804
H-8
D807
F-9
D809
H-6
D810
H-8
Ref. No. Location
IC50
G-2
IC300
B-5
IC401
E-3
IC501
G-6
IC602
G-7
IC681
D-5
IC801
E-8
IC802
H-8
IC803
E-9
IC804
H-8
IC805
F-9
Q1
E-2
Q3
F-2
Q50
G-2
Q51
G-2
Q401
E-6
Q402
E-6
Q411
E-5
Q412
E-5
Q420
C-4
Ref. No. Location
Q432
C-3
Q440
C-4
Q452
C-3
Q460
B-2
Q470
C-3
Q491
D-5
Q492
D-5
Q601
B-9
Q602
C-9
Q605
B-9
Q701
C-8
Q702
C-7
Q703
C-8
Q801
H-8
Q806
F-9
Q807
E-9
Q808
D-9
Q809
H-8
Q810
H-8
Q900
I-6
Ver. 1.1
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