Sony MDX-CA790X Service Manual ▷ View online
MDX-CA790X
25
25
5-6.
SCHEMATIC DIAGRAM – SERVO Section (2/2) –
•
See page 31 for Waveform.
•
See page 16 for IC Block Diagram.
C80
C81
R42
R36
R32
R31
R44
C62
C68
R65
R25
R59
R57
R56
R35
R54
R53
R94
R91
R92
R45
R63
R58
C78
R77
R68
C71
R76
R67
R70
R69
C69
R66
R62
R61
R60
R37
C83
C63
TP77
TP78
D1
R50
Q3
IC6
CN5
C64
L5
IC7
Q2
X2
R43
R47
BP5
BP6
C70
0.1
0.1
100
100
100
100
0
0.1
0.1
100
100k
100
100
100
100
100
100
100k
30k
33k
100
100
100
0.01
680
100
1
470k
100
100k
100k
0.1
100
47k
47k
47k
100
0.1
0.1
(LO+)
(LO-)
MM3Z5V6ST1
1k
MSD601-RT1
BA6287F-T1
30P
0.01
0
MB90473PFV-G-150
-BNDE1
MSD601-RT1
18.43MHz
100
100
47
4V
4V
Z1
Z2
Z3
Z4
Z5
Z6
Z7
Z8
Z9
Z10
Z11
Z13
Z14
Z15
Z16
Z17
LOAD_END
A-ATT
MDMON
BU-IN
EJECT-OK
LINKOFF
BUS-ON
UNISI
UNISO
UNICLK
RSTX
LIMIT
LOAD_END
L
O
+
L
O
-
LIMIT
DISC_IN
D
IS
C
_
IN
B
U
-IN
U
N
IS
I
U
N
IS
O
U
N
IC
L
K
R
S
T
X
TXD
R
X
D
M
D
M
O
N
L
IN
K
O
F
F
A
-A
T
T
B
U
S
-
O
N
E
J
E
C
T
-O
K
TXD
RXD
MD_ON
MD_ON
D
IS
C
_
E
X
IS
T
DISC_EXIST
O
P
E
N
_
R
E
Q
OPEN_REQ
EJECT
LOAD
L
O
A
D
E
J
E
C
T
S
Q
S
Y
X
IN
T
A
B
C
D
X
L
A
T
S
C
L
K
S
W
D
T
S
R
D
T
M
D
M
O
N
LIN
KO
F
F
A-A
TT
VS
S
E
M
PH
A_
O
SR
D
T
SW
D
T
S
CL
K
V
C
C
R
X
D
TXD
AVCC
AVRH
AVSS
INIT2
INIT1
VSS
MD0
MD1
MD2
XIA
XOA
VSS
X0
X1
VCC
LOAD
EJECT
SENS
MNT2
3
TP
W
M
N
C
N
C
N
C
N
C
N
C
N
C
M
D
-LA
T
LOAD_END
D
IS
C
-IN
E
R
R
-PW
M
N
C
N
C
N
C
N
C
N
C
N
C
N
C
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
N
C
NC
N
C
NC
NC
N
C
NC
N
C
N
C
N
C
A
D
E
R
-P
W
M
A-ATT
OPEN_REQ
B/U_GND
DRIVER_5V
DRIVER_GND
DRIVER_GND
INIT3
FOK
NC
NC
BUS_ON
NC
NC
REF_LEVEL
NC
NC
FLASH_W
N
C
N
C
D
ISC
_EX
IS
T
E
JEC
T
_O
K
O
P
EN
_R
E
Q
CC-XINT
BU_IN
SQ
_
SY
U
N
IS
I
U
N
IS
O
U
N
IC
LK
N
C
N
C
N
C
LIMIT_IN
MD_ON
MD_RST
UNISI
UNISO
DISC_EXIST
TXD
RXD
GND
OUT2
VREF
RIN
OUT1
VM
VCC
FIN
(2/2)
MD-ON
EJECT_OK
MECHA-ON
LINK_OFF
BUS_ON
B/U_CHECK
A-GND
A3.3V
DGND
UNICK
D3.3V
NC
LCH
FLASH-W
AUDIO_GND
RCH
LO_6V
SYS_RST
B/U_3V
MD MECHANISM CONTROLLER
HOLD
PEAK
REFERENCE
VOLTAGE
REGULATOR
LOADING MOTOR DRIVE
R
S
TX
M
D
O
N
_CH
E
CK
M
D
O
N
_C
H
E
CK
(Page 24)
(Page 29)
MDX-CA790X
26
26
BP5
BP6
BP1
BP2
BP3
CN2
R25
IC3
L3
C58
IC4
C50
C81
C35
R94
R92
IC6
X2
C80
C71
C69
C68
Q2
C70
C22
C23
C29
C33
C63
R37
R43
R44
R45
R47
Q3
R50
R63
R76
R60
R61
R62
R65
R66
R67
R68
R69
R70
R77
IC1
R58
IC2
C47
C83
R91
R29
CN5
L5
IC7
X1
L2
C59
CN3
C78
C6
C5
C8
C11
C12
C13
C15
C16
C17
C19
C21
R40
R39
D1
R24
R22
R21
R20
R18
R17
R13
R12
R11
R10
R9
R7
R6
R1
C57
C56
C55
C54
C53
C51
C49
C27
C48
C46
C45
C42
C37
C36
C34
1
30
90
61
60
31
91
120
1
3
5
4
C62
C64
R31
R32
R35
R42
R53
R54
R56
R
57
R59
R36
Q1
L4
C4
C18
C20
C25
C26
R38
R30
R28
R23
R19
R16
R15
R14
R5 R4
R3
R2
C52
C44
C43
C40
C39
C38
C32
C31
1
12
36
25
13
24
48
37
1
25
75
51
26
50
76
100
(SIDE A)
SERVO BOARD
1-687-046-
12
(12)
OPTICAL PICK-UP
BLOCK
KMS-242E
(SIDE B)
SERVO BOARD
1-687-046-
12
(12)
1-687-047-
12
(12)
(SIDE A)
SENSOR BOARD
M903
(LOADING)
M
RED
BLK
M902
(SLED)
M
BLK
RED
M901
(SPINDLE)
M
RED
BLK
1-687-047-
12
(12)
(SIDE B)
SENSOR BOARD
(LOADING DETECT)
(LIMIT)
CHUCKING
DETECT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A
B
C
D
E
F
G
H
I
J
K
L
17
A
MAIN BOARD
CNP500
5-7.
PRINTED WIRING BOARDS – SERVO Section –
•
See page 23 for Circuit Boards Location.
(Page 27)
• Semiconductor
Location
Ref. No.
Location
D1
C-3
IC1
G-5
IC2
E-3
IC3
E-6
IC4
F-7
IC6
B-3
IC7
C-4
Q1
F-15
Q2
D-4
Q3
C-2
MDX-CA790X
27
27
D60
I-3
D72
F-3
D300
E-9
D301
E-10
D302
E-9
D303
E-10
D304
E-10
D305
E-9
D306
D-8
D307
D-8
D308
E-11
D309
E-12
D310
E-11
D311
E-11
D312
E-13
D313
D-12
D350
J-12
D351
E-8
D360
D-12
D363
E-12
D370
M-4
D371
L-4
D372
M-4
D373
M-3
D375
F-14
D401
J-14
D402
K-14
D403
J-14
D404
H-12
D405
I-11
D406
G-13
D407
G-13
D500
H-10
D501
G-12
D600
L-8
D700
H-9
D701
G-9
IC90
J-3
IC120
G-6
IC300
C-8
IC400
L-14
IC600
J-9
IC601
K-12
IC700
H-8
Q60
H-4
Q71
F-3
Q210
C-5
Q220
D-5
Q230
C-5
Q240
D-5
Q350
F-8
Q351
F-8
Q360
I-13
Q361
G-14
Q370
K-4
Q401
J-15
Q402
H-13
Q403
H-13
Q404
I-13
Q405
H-12
Q504
G-12
Q505
H-13
Q600
I-12
JW001
JW002
JW003
JW007
JW008
JW009
JW010
JW011
JW012
JW013
JW015
JW016
JW017
JW018
JW019
JW
020
JW021
JW022
JW023
JW026
JW027
JW028
JW029
JW030
JW031
JW032
JW034
JW035
JW036
JW038
JW040
JW043
JW044
JW045
JW046
JW047
JW048
JW049
JW050
JW053
JW054
JW055
JW056
JW057
JW058
JW059
JW060
JW061
JW062
JW063
JW064
JW065
JW066
JW067
JW068
JW069
JW070
JW074
JW075
JW076
JW077
JW078
JW081
JW082
JW083
JW084
JW085
JW086
JW087
JW088
JW089
JW090
JW091
JW092
JW093
JW094
JW095
JW096
JW097
JW098
JW
099
JW100
JW101
JW102
JW103
JW
104
JW105
JW106
JW108
JW110
JW111
JW112
JW113
JW115
JW116
JW117
JW118
JW119
JW120
JW121
JW122
JW123
JW124
JW125
JW126
JW127
JW128
JW129
JW130
JW131
JW132
JW133
JW134
JW135
JW136
JW137
JW138
JW139
JW140
JW141
JW142
JW143
JW144
JW145
JW052
JW051
CNJ400
CN300
L300
C331
D312
TH400
R303
X602
J10
(FM/AM ANTENNA IN)
C300
C350
S601
JW024
JW025
PJ210
TU10
X90
C602
CN370
R502
JW500
JW148
JW149
S600
IC300
C360
D309
D301
D302
D303
D304
D305
D306
D307
D308
D300
D310
D311
R377
R378
CNP500
C601
C608
C505
C504
C701
C131
C15
C14
C615
JW600
JW386
JW072
JW073
JW071
JW107
JW014
JW005
JW004
C401
C320
C322
C324
C326
C328
JW033
JW079
JW109
C10
CN371
C100
C128
C130
JW150
C506
C507
C301
C241
C271
C261
C251
C120
JW151
C125
C126
C220
C210
C332
JW041
JW037
JW039
JW152
X601
R362
R361
JC362
R364
R365
Q361
R406
R405
JC504
D406
D407
Q402
Q504
C501
Q403
Q404
Q360
D404
JC407
R360
R614
R407
R612
Q600
R617
C600
R616
C603
R618
C605
C604
R404
JC404
R403
R615
R408
D402
D403
D401
Q401
IC400
R609
R619
R620
C607
C606
IC601
IC600
C611
C612
R627
R628
R629
JC406
JC405
R606
R611
C503
R503
R624
C610
C345
R625
R626
C613
C614
R370
D370
D371
D363
D313
D360
D373
R372
R373
R374
Q370
R91
R631
C91
C92
C96
C97
C98
C11
R10
R12
R13
R14
R15
R11
Q60
R61
C127
C121
C122
R120
R121
C13
R16
R17
R79
Q71
IC120
R122
R123
C129
R124
R220
R221
R210
R211
C221
C211
JC300
R301
C302
C303
R300
Q350
Q351
D351
R350
JC301
JC305
D72
R304
R363
JC403
R600
R607
R608
D405
D350
D500
D600
IC90
R367
R371
C257
C256
R253
R251
Q220
R252
R250
C267
C266
R263
R261
Q230
R262
C255
C265
R260
C246
C247
R243
R241
Q210
C245
R242
R240
C277
C276
R273
Q240
C275
R272
R271
R270
JC611
D501
C304
R93
R92
R94
C99
C61
D60
JC306
JC350
C402
C640
C609
JC610
C702
R700
C500
JC361
IC700
C700
C502
C323
C325
C327
C132
R18
R20
C17
C18
JC60
R19
R125
C94
C93
D372
C616
JC420
JC421
R520
R521
R522
R523
R524
R525
R526
R527
R528
C329
R141
R140
C620
C60
C307
C306
C305
C321
C333
R630
R95
R96
Q505
Q405
R311
R312
C16
L320
D700
D701
C135
C136
R411
R412
JC17
JC380
C380
L328
C340
JC80
C400
C330
C374
R613
C804
C12
D375
R623
JC142
JC140
JC141
J370
CN372
R375
1
2
3
4
5
6
7
8
1
2
4
3
1
100
50
51
25
26
76
75
MAIN BOARD
1-687-861-
11
(11)
1
9
WHT/BLK
GRN/BLK
VIO/BLK
GRY/BLK
LIGHT BLU
BLU/WHT
YEL
WHT
GRN
VIO
GRY
BLU
RED
BLK
2
10
3
11
4
12
5
13
6
14
7
15
8
16
RL+
RL–
GRN/BLK
WHT/BLK
GRY/BLK
VIO/BLK
GRN
WHT
GRY
VIO
FL+
FL–
FR+
FR–
RR+
RR–
ACC
GND
BLK
YEL
RED
BLU
ANT REM
NC
NC
BATT
NC
NC
TO
CN300
ATT
AMP REM
1
2
3
7
8
4
5
6
(FRONT VIEW)
BUS CONTROL
IN
CNJ400
F300
(NOSE DETECT)
1
3
5
4
L
R
BUS AUDIO
IN
L
R
AUDIO OUT
REAR
L
R
AUDIO OUT
FRONT
(CHASSIS)
(FM/AM TUNER PACK)
(CHASSIS)
13
1
14
2
RESET
MINI JACK
BOARD
1-688-520-
11
(11)
REMOTE IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A
B
C
D
E
F
G
H
I
J
K
L
M
A
SERVO BOARD
CN5
B
SUB BOARD
5-8.
PRINTED WIRING BOARDS – MAIN Section –
•
See page 23 for Circuit Boards Location.
(Page 26)
(Page 31)
• Semiconductor
Location
Ref. No.
Location
MDX-CA790X
28
28
5-9.
SCHEMATIC DIAGRAM – MAIN Section (1/3) –
•
See page 31 for Waveform.
•
See page 16 for IC Block Diagrams.
R252
D350
C136
R61
D60
C61
R12
R13
R14
R15
C14
C15
C18
C17
R16
R17
R18
R19
R20
C60
R141
R140
R125
C131
C132
C127
C129
R122
R123
C130
C210
C220
R220
R210
R221
R211
R124
R250
R240
R260
R270
R261
R251
R271
R241
R242
R262
R272
Q210
Q220
Q230
Q240
R312
R311
C302
R300
R243
R253
C266
C256
C246
C247
C257
C276
R273
C277
C300
D351
C322
C323
C324
C325
C326
C327
C328
C329
C304
C333
C332
D310
D311
D304
D303
D302
D301
D300
D305
D306
D307
D308
C267
C320
C321
D309
R304
R303
C305
C306
C307
C350
C340
C303
R301
C301
C121
C122
C380
R11
C12
C13
C135
C128
C126
C125
C11
C16
R630
R631
C265
C255
C221
C211
C275
C245
IC300
R263
CN300
JC306
JC305
JC301
JC350
Q351
Q350
R350
PJ210
TU10
JC60
Q60
R79
D72
Q71
JC80
C10
R10
C100
R92
R94
C99
C97
C98
C96
X90
C91
R91
C92
C93
R96
R95
R93
C94
J10
R121
R120
C330
C331
IC120
F300
JC140
JC141
IC90
C804
JC380
JC142
JC300
C120
C271
C261
C251
C241
D313
D312
C345
47k
MA721WK
1000p
470
UDZS-5.6B
1
100
100
100
100
100
10V
100
10V
0.01
0.01
1k
10k
0
10
0
1
100
100
0
47
16V
0.01
0.0015
0.0015
10k
10k
0.012
1
50V
1
50V
10k
10k
1k
1k
30k
100
100
100
100
100
100
100
100
47k
47k
47k
DTC314TK-T
DTC314TK-T
DTC314TK-T
DTC314TK-T
100
100
47p
100
1k
1k
0.47
0.47
0.47
100p
100p
0.47
1k
100p
22
16V
MA111
22 16V
0.01
22 16V
0.01
22 16V
0.01
47 16V
0.01
0.22
0.01
47
16V
1SR139
1SR139
1SR139
1SR139
1SR139
1SR139
1SR139
1SR139
1SR139
1SR139
1SR139
100p
100 10V
0.01
1SR139
1k
4.7k
0.22
0.22
0.22
47
16V
0.22
0.22
47k
1
50V
0.22
0.22
1
22k
1000p
1000p
1000p
0.012
1
50V
1
50V
0.047
0.01
10k
10k
100p
100p
100p
100p
100p
100p
TDA8588AJ
1k
16P
0
0
0
0
DTC114EKA
DTA114EKA
47
6P
TUX-030
0
2SD1664
-T101
100
UDZS-5.1B
DTC144EKA
0
4.7
16V
16V
22k
47
16V
10
10
0.1
2.2
330p
560p
4.332MHz
15p
22k
12p
0.1
100
100
470
1000p
10k
10k
0.22
3300
16V
BD3802F
10A
32V
32V
0
0
SAA6588T-V2
0.0015
0
0
0
10
35V
10
35V
10
35V
10
35V
10
35V
UDZSTE-176.8B
1N5404TU
0.001
A1
A2
A3
A4
A5
A6
B1
B2
B3
E
E
P
_
S
C
L
E
E
P
_
S
D
A
I2
C
_
S
D
A
I2
C
_
S
C
L
QUALITY
NS_MASK
V
S
M
T
U
_
M
U
T
E
M
U
T
E
_
C
O
N
AU8.3V
BU5.0V
A
T
T
M
E
C
H
_
A
T
T
AU8.3V
I2C_SDA
I2C_SCL
VOLATT
T
E
S
T
BEEP
I2C_SDA
I2C_SCL
STB
DIAG
I
L
L
1
0
.0
V
M
E
C
H
6
.0
V
S
E
R
V
O
3
.3
V
B
U
5
.0
V
A
U
8
.3
V
FL+
FL+
FL-
FL-
RL-
RL-
RL+
RL+
RR+
RR+
RR-
RR-
FR+
FR+
FR-
FR-
AMP-R
AMP-R
ANT-R
ANT-R
D
A
V
N
I2
C
_
S
D
A
I2
C
_
S
C
L
RL+
RL+
RL-
RL-
FL+
FL+
FL-
FL-
FR+
FR+
FR-
FR-
RR+
RR+
RR-
RR-
ACC
ACC
ANT REM
ANT REM
MRO
MPTH
TCON
OSCI
VSSD
VDDD
DAVN
SDA
SCL
LVIN
CIN
SCOUT
VREF
MPX
VSSA
VDDA
AFIN
MAD
PSWN
OSCO
(CHASSIS)
(CHASSIS)
(CHASSIS)
FL+
FL-
RL+
RL-
RR+
RR-
FR+
FR-
AMP-R
TEL-ATT
ANT-R
ACC
TEST
GND
(1/3)
MUTING
MUTING
MUTING
MUTING
(CHASSIS)
ATT
AMP REM
BATT
BATT
GND
POWER AMP,REGULATOR
GND
MUTING
Q350,351
CONTROL
L
R
L
R
BUS AUDIO
IN
L
R
AUDIO OUT
REAR
FRONT
(FM/AM TUNER PACK)
+5V REGULATOR
NOISE DET
DISCHARGE
SWITCH
RDS DECODER
FM/AM
ANTENNA IN
INPUT SELECT,
ELECTRICAL VOLUME
L320
2.2
µ
H
L328
2.2µH
L300
250µH
(Page 29)
(Page 30)
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