Sony CDX-GT740UI / CDX-GT747UI / CDX-GT790UI Service Manual ▷ View online
CDX-GT740UI/GT747UI/GT790UI
CDX-GT740UI/GT747UI/GT790UI
17
17
4-1. BLOCK DIAGRAM – MAIN Section –
20
22
22
11
12
28
12
28
8
17
18
18
3
25
7
19
27
13
24
27
13
24
4
AU_LCH
AU_RCH
AU_RCH
TXD(MC-BUS)
RXD(MC-BUS)
WAKE UP
Z_MUTE
CD_ON
CDM_ON
RXD(MC-BUS)
WAKE UP
Z_MUTE
CD_ON
CDM_ON
SYS_RST
EJECT_OK
VBUS ON
EJECT_OK
VBUS ON
AU ATT
BU CHECK
MECHA 8.5V
A+3.3V
BU_+3.3V
DR_+6V
BU CHECK
MECHA 8.5V
A+3.3V
BU_+3.3V
DR_+6V
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
AUDIO +8.5V
BU_+3.3V
SERVO+3.3V
R-CH
R-CH
9 AUX-L
7 AUX-R
7 AUX-R
MC RX
53
MC TX
54
WAKE UP
56
Z-MUTE
60
CD_ON
28
CDM_ON
29
EJECT OK
68
RESET
52
SYSRST
27
V-BUS ON
BU +3.3V
86
FLS-CLK
59
MD0
49
MD2
51
FLASH EN1
76
VOUT
1
VIN 2
15
D560
4 FMIN1
3 FMIN2
3 FMIN2
4 TU-L
8 AUX GND
ELECTRONIC VOLUME
IC401
PRE AMP
IC462
SUB OUT AMP
IC481
J1
(ANTENNA)
PHASE LOCKED LOOP
(PLL)
IC1
L6
FM MIX
L2
CN200
CD
MECHANISM
UNIT
(MG-101Z)
(1/2)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC300
SYSTEM CONTROL
IC501 (1/2)
RESET
IC682
CN701
3 TU-R
6 CD-L
5 CD-R
5 CD-R
R-CH
BATT
R-CH
8
9
9
18
SCL
19
SDA
14
RSSI
35 VSM
82 DAVN
74 RDS ON
12
MPXIN
13
MPXOUT
16 MPXIN
11
SCL
12
SDA
I2C-SCK
I2C-SIO
15
1
7
INTN
16 XTAL1
15 XTAL2
LOUT
ROUT
J901
L
R
-1
-2
AUX
J400 (1/2)
X1
4MHz
AEP,UK,RU
MODEL
BUS
AUDIO IN
S680
RESET
5
3
3
OUT-FL+
OUT-FL–
OUT-FL–
9
7
7
OUT-RL+
OUT-RL–
OUT-RL–
27
R-CH
ANT-REM
35
VP
BATT
30
AUDIO+8.5V
31
33
33
SERVO+3.3V
MECHA+6V
34
PANEL+9V
35
33
33
OUT-FR
27
SACLK
28
SADA
29
SAOUT
OUT-RR
R-CH
31
SUB-R
12
PD-L
10
PD-R
4 SCL
AUDIO +8.5V
SERVO+3.3V
MECHA+6V
PANEL+B
SERVO+3.3V
MECHA+6V
PANEL+B
2 SDA
16 BEEP
22 STB
25 DIAG
22 STB
25 DIAG
7
10
12
11
16
1
9
9
2
4
3
6
37
38
38
SCL
SDA
I2C-SCK
I2C-SIO
I2C-SIO
I2C-SCK
I2C-SIO
I2C-SCK
I2C-SIO
I2C-SIO
I2C-SCK
I2C-SIO
I2C-SIO
8
I2C_CLK
70
SACLK
69
SAOUT
36
SAIN
7
I2C_SIO
25
ATT
34
MD_AUDIO_SEL
96
ZAPPING BEEP
95
BEEP
66
AMPSTB
67
DIAG
81
BU IN
12 IN-FL
FL+
FL–
FL–
L
R
RL+
RL–
RL–
FR+
FR–
RR+
RR–
FR–
RR+
RR–
ANT-REM
BATT
ACC
34
OUT-FL
11 IN-RL
32
OUT-RL
3
FL-OUT
19
RL-OUT
5 FL+
17 RL+
MUTE
Q480
MUTE DRIVE
Q491,492
13 RST
12 BUS IN
11 CLK IN
10 BU CHECK
12 BUS IN
11 CLK IN
10 BU CHECK
9 DATA IN
8 DATA OUT
8 DATA OUT
22
ACC IN
ACC DETECT
Q704
+3.3V REG
IC681
MUTE
Q450
29
AMP-REM
5
AMP-REM
14
ILL
61
ILL IN
ILL DETECT
Q702
13
TEL-ATT
24
TEL ATT
TEL-ATT DETECT
Q703
1 AMRFIN
REAR
BUS INTERFACE
IC601
D491
D494
D493
FU601
26
BUS ON
37
BU+B
B.U+5V
FRONT
R-CH
L
J400 (2/2)
R
-3
-4
-5
-6
AUDIO
OUT
MUTE
Q420
BU+3.3V
BATT
1 BUS-R
2 BUS-L
3
BATT
CLK
RST
DATA I/O
BUS ON
5
6
6
8
4
2
3
3
1
4
1
2
2
3
BATT
CN600
(BUS CONTROL IN)
TH600
7
6
BATTERY CHECK
Q701,D702,703
9 XTI
10 XTO
VDDA
VDDD
BU+3.3V
X50
8.664MHz
RDS DEMODULATOR
IC50
MECHA +6V
3.3V
6
SYNC/NONSYNC
3
FLASH+W
7
CLK
2
RESET
RX
4
1
5
TX
CN670
FLASH
PROGRAMMING
BU +3.3V
B.U +5V
18
UNI SCK
17
UNISO
16
UNISI
RDS +3.3V
POWER
CONTROL
Q50,51
CD MUTE
Q401
DISPLAY
SECTION
A
STB
SUB OUT
(MONO)
DISPLAY
SECTION
B
FLASH+W
FLASH
PROGRAMMING
BUFFER
Q501,502
7
5
6LJQDO3DWK
5&+LVRPLWWHGGXHWRVDPHDV/&+
$EEUHYLDWLRQ
$0RU0:
: CD
: FM
: BUS AUDIO
: AUX
585XVVLDQPRGHO
(Page 18)
(Page 18)
CDX-GT740UI/GT747UI/GT790UI
CDX-GT740UI/GT747UI/GT790UI
18
18
X501
32.768kHz
12
11 X_IN
X_OUT
X502
7.92MHz
90
91 OSC_IN
1 NOSE_SW
OSC_OUT
S501
FRONT PANEL
DETACH DETECT
LED701,702
CN671
FLASH
PROGRAMMING
4 DOOR_IND
BATT
LED DRIVER
Q650,651
MAIN
SECTION
A
MAIN
SECTION
B
USB POWER
CONTROL
IC802
87
USB_OVER
3
DOOR_SW
3 2C
77
USB_ON
BATT
78
DD_ON
IN
D856
VBUS
4 N
5 OC
2
3 IN
6
OUT
BATT
D811
L810
D902
USB SELECT SWITCH
IC904
Q901
USB ON/OFF
CONTROL
S901
FRONT PANEL
OPEN DETECT
CD
MECHANISM
UNIT
(MG-101Z)
(2/2)
D905
7 1C
2 1B
6 2B
6 2B
1
1A
USB D+
USB D–
USB D–
5
2A
DC-DC CONVERTER
IC801
6
DRV
1 RC
DC-DC CONVERTER
IC852
4
5
OUT
1
IN
7 CT
7
OUT
8
OUT
USB POWER
SWITCH
Q801
FL POWER
CONTROL
Q851,852
DC-DC
CONVERTER
CONTROL
IC851,Q861
FSW
CONTROL
Q856,857
6 CS VCC
STB
1
3
4
ILL+10.4V REG
IC351
5
4
2
1
1
FL+3.3V REG
IC650
FL POWER
CONTROL
Q853
VOLTAGE
DETECT
Q859
SWITCHING
REGULATOR
Q858
USB POWER
CONTROL
Q802
SWITCHING
REGULATOR
Q810
USB
+5V REG
Q813
VOLTAGE
DETECT
Q811,812
1
3
2
3
2
VBUS
D+
D–
D–
4
CN902
(USB)
4
5
6
7
5
6
7
D851
D650
RESET
IC902
D859
D858
RC_IN1
KEY_ACK0
RC_IN0
J590
(REMOTE IN)
SLJQDO PDWK
: USB
AM(10K)
FM(200K)
FM(50K)
AM(9K)
38
40
47
46
47
46
44
SYSTEM CONTROL
IC501 (2/2)
FL DISPLAY CONTROL,
LED CONTROL
IC901
KEY_IN0
FL_F(+)
FL_F(–)
FL_VDD2+55V
SYS_SO
SYS_SI
SYS_SI
DSPL_IF
LAT TA2 OUT
FL_DAT1
FL_DAT2
FL_DAT3
FL_DAT2
FL_DAT3
FL_CLK_IN
FL_CLK_IN
FL_CLK_IN
FL_CLK_OUT
GCP_TA0_OUT
BK_TA1_OUT
GCP_TA4_IN
DSPL_TX
DSPL_RX
FLD_ON
24
98
RING
92
ILL_RED
KEY_ACK1
9 RE-IN0
10 RE-IN1
FLASH+W
29
1
30
DSPL_CE
DSPL_TX
DSPL_RX
DSPL_TX
DSPL_RX
MAS_IF
KEY_2
86
85 KEY_1
FL_VDD+3.3V
FL_VDD2+55V
FL_F(–)
FL_F(+)
22
41
41
CNVSS
RESET
RESET
D925
D924
DSPL_RESET
7
10
XOUT
XIN
VIN VOUT
11
13
21
ILL_VOL
BATT
PANEL+B
B.U+5V
X901
8MHz
KEY_PUSH
78
KEY
MATRIX
S701,902–907,
S909–918,
RE901 (2/2)
ROTARY
ENCODER
RE901 (1/2)
BU+3.3V
RX
TX
VDD
FLASH+W
TX
VDD
FLASH+W
ILL+10.4V
D927,
LED901–916
LED901–916
D926,
LED917–920
LED917–920
LED DIMMER
CONTROL
Q905–907
LED POWER
CONTROL
Q908,910
LED DRIVER
Q902–904
FL900
FLUORESCENT
INDICTOR TUBE
1
I
3
8
30
7
31
35
I
37
2
SIRCS
91
ILL_BLUE
90
ILL_GREEN
83
32
39
39
43
AREA_SEL2
ILL+10.4V
FL_VDD+3.3V
FL_VDD+3.3V
S502
FREQUENCY
SELECT
BU+3.3V
GT790UI
26
33
24
22
23
45
22
21
25
35
47
47
28
27
28
28
26
19
19
DC–DC
CONVERTER
TRANSFORMER
T850
REMOTE CONTROL
SIGNAL RECEIVER
IC903
FL POWER
CONTROL
Q854,855
ILL+10.4V
POWER
CONTROL
Q351
5
FSW_IN
2
FL_ON
45
FSW_OUT
3
4-2. BLOCK DIAGRAM – DISPLAY Section –
(Page 17)
(Page 17)
CDX-GT740UI/GT747UI/GT790UI
CDX-GT740UI/GT747UI/GT790UI
19
19
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
C32
(US)
1
FB4
(US)
R17
(EXCEPT US)
2
1
2
R531
(GT790UI)
3
R538
(US,RU)
7
R539
(US,E)
8
R540
(AEP,UK,RU)
9
R544
(GT740UI/GT790UI)
10
R546
(GT740UI/GT790UI)
11
R547
(GT790UI)
12
R535
(GT740UI)
4
R537
(AEP,UK,E)
6
R536,R545
(GT747UI)
5
5
3
4–
9
11
10
12
AEP,UK,RU MODEL
E C B
E C B
E C B
E C B
E C B
B C E
E C B
B C E
G2 G1
D1 S1
S2 D2
B C E
E C B
8
9
16
1
B C E
E C B
81
81
B C E
B C E
B C E
E C B
21
20
40
1
1
7
8
8
14
1
4
5
8
1
4
58
1
4
58
1
4
5
8
1
10
11
20
DD
G
S
D
D
B C E
G
S
D D
D
D
B C E
E C B
1
100
76
75
26 25
50
51
D D
G
S
D
D
E C B
R406
R407
D560
Q852
Q851
FB50
R601
FB51
IC351
R603
Q857
Q856
R604
Q858
S D G
R41
1
Q859
R606
R412
C32
R607
R413
R414
R608
R415
R416
R417
R418
R801
R419
Q861
R802
R803
R804
R610
R609
FB4
R805
L851
R806
Q480
R423
R810
R812
R813
R814
R815
R816
R817
R818
C50
R819
C51
Q491
C52
Q492
R433
C53
C54
C55
R820
IC50
C58
R821
C59
R822
R825
R826
C61
C62
R443
C601
C603
C41
1
C414
R453
C801
C803
C804
C805
C809
R651
R652
C423
R653
C424
R654
R849
C425
R655
R656
R462
R463
R657
C810
R464
C811
R465
C812
C813
R467
C814
R850
R851
R469
C816
R852
C818
R854
C819
R855
R856
R856
C433
R857
C434
R858
R470
C435
R859
R471
R473
C820
R475
C822
R476
R477
R860
R478
R861
R862
R863
R864
R670
R865
R671
R866
C443
R867
C444
R868
C445
R869
R481
R482
4
1
5
8
R483
Q50
Q51
R870
R871
R872
R873
R874
R680
1
2
4
3
R875
R876
R876
C453
R877
C454
C455
R879
R491
R495
CN670
R880
CN671
R881
C652
R882
C653
13
4
5
R883
C654
R884
C655
R886
C464
R888
Q501
E C B
R889
Q502
E C B
C467
C851
C854
R890
L301
D601
C855
R891
D602
D603
C857
D604
C470
R894
Q701
C471
R895
Q702
Q703
R897
Q704
C475
C476
C860
D802
C863
C864
C866
IC401
C481
D810
D81
1
C871
IC601
C681
3 2 1
C685
C496
E C B
C498
C495
IC801
IC802
C884
C886
C888
C889
C890
Q351
E C B
C892
C894
C898
R301
R302
R303
D650
R304
R305
R306
R307
R501 R502
R504
R505
R506
R507
R507
D854
R508
R509
D855
D856
R701
R702
R704
R510
R705
R511
R706
R707
R708
R709
R515
R516
R517
R518
IC650
R519
R711
R712
IC462
R713
R520
R521
R522
R523
R524
IC851
R526
IC852
R527
R528
R529
D491
D493
R530
D494
R531
R532
C304
R534
R535
R536
R537
D883
R538
D884
C309
R539
R151
D885
R152
R153
R348
R349
IC481
C503
R540
C505
R541
C506
R542
C507
C508
R544
L590
C509
C315
R545
R351
R546
R352
1
5
C317
R547
R353
R548
R354
IC681
IC682
R17
R18
R19
C707
C708
R553
R560
R564
R565
R567
R6
F801
R381
R383
C351
R50
R390
R51
R391
R52
R53
R54
R55
R55
R56
R57
R58
R59 R60
Q401
D702
D703
D704
Q801
D705
Q802
D706
D707
D708
D709
C381
C382
Q420
Q810
IC501
Q81
1
Q812
Q813
C390
L801
C391
C392
L810
Q440
FB202
B C E
B C E B C E
B C E
Q430 Q450
C14
R201
C15
R202
R203
R205
R206
Q650
E C B
E C B
Q651
1-877-933-
11
(11)
MAIN BOARD (SIDE A)
FLASH
PROGRAMMING
FLASH
PROGRAMMING
R602
R605
R590
R591
R61
1
R612
Q853
Q854
Q855
R503
R514
4-3. PRINTED WIRING BOARD – MAIN Section (1/2) –
•
: Uses unleaded solder.
CDX-GT740UI/GT747UI/GT790UI
CDX-GT740UI/GT747UI/GT790UI
20
20
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
FREQUENCY
SELECT
-2
-1
FM(50K)
AM(9K)
AM(9K)
FM(200K)
AM(10K)
AM(10K)
FB1
(US)
R15
(EXCEPT US)
1
3
1
2
FB2
(US)
R16
(EXCEPT US)
2
FB3
(US)
R3
(EXCEPT US)
3
C29,C56,C57,X50
(AEP,UK,RU)
4
4
4
5
S502
(GT790UI)
5
4
6
1
3
7
8
11
10
9
CN600
C602
C701
D700
L701
D701
C705
R703
R710
C204
CN701
1
9
8
16
17
18
19
1
2
36
IC300
D309
D31
1
D301
D302
D304
D303
C303
TH600
C202
C206
C208
C802
C817
C823
B14
A14
CN200
B1
A1
C859
C880
S501
T850
C852
C853
C704
L2
A001
L6
L7
L8
C468
C469
C482
1
3
CN480
1
3
CN480
C461
C462
C463
C465
C472
C466
C421
C431
C441
C451
C683
C308
C312
C320
C310
C314
D305
D306
D307
D308
D310
D312
C491
C686
C682
C497
C499
C510
X501
X502
C824
L820
1
2
22
23
CN100
C352
C57
C159
L1
X50
X1
S502
C28
C412
C413
C865
S680
C862
37
C156
C157
C405
C406
1
16
17
32
C20
R401
C21
R402
C22
C23
R210
C24
R211
C25
R212
C26
R213
C27
C29
FB1
FB2
FB3
R421
R422
C201
R431
R432
C203
L480
C205
C56
C207
R823
R824
C401
C402
R441
JL001
R442
JL002
JL003
JL004
JL005
JL006
JL007
JL008
JL009
JL010
R451
JL011
R452
JL012
JL013
JL014
JL015
JL016
JL017
JL018
JL019
C422
JL020
JL021
JL022
JL023
JL024
R658
JL025
JL026
JL027
JL028
JL029
R853
C432
JL030
JL031
JL032
JL033
JL034
JL035
JL038
C1
C5
C442
C6
C8
C9
R485
R486
C452
C858
R896
C477
C478
C867
C868
C869
C483
C887
C891
C899
D851
D858
D859
R512
R513
R525
FB153
C301
YEL
YEL
C302
C305
IC1
C306
C307
R154
C501
R155
C502
C504
C311
R543
R10
R11
C316
R12
R13
C318
R14
R549
R15
C702
R16
C703
C513
R550
R551
R552
R554
R555
R556
R557
R558
R559
R561
R562
R563
R1
R2
R3
R4
R5
R5
C153
C154
C155
VR1
D100
D101
D102
D103
D104
D105
D106
D107
D108
D109
D1
10
D
111
L206
R991
R992
W001
W002
D151
D152
D153
FB201
FB203
FB205
FB207
FB401
C12
C13
C16
C17
C18
C19
R208
R209
MAIN BOARD (SIDE B)
1-877-933-
11
(11)
(CHASSIS)
WHT
RED
SUB OUT
(MONO)
SUB BOARD FFC701
A
S680
S501
FRONT PANEL
DETACH DETECT
RESET
CD MECHANISM
UNIT
(MG-101Z)
(1/2)
J400
-2
R
-1
L
L
-4
R
-3
L
L
-6
R
-5
L
L
REAR
AUDIO OUT
BUS
AUDIO IN
FRONT
CN600
(BUS CONTROL IN)
J590
(REMOTE IN)
FU601
US,E MODEL
AEP,UK,RU MODEL
(ANTENNA)
J1
4-4. PRINTED WIRING BOARD – MAIN Section (2/2) –
•
: Uses unleaded solder.
(Page 25)
Click on the first or last page to see other CDX-GT740UI / CDX-GT747UI / CDX-GT790UI service manuals if exist.