Sony WX-7700MDX Service Manual ▷ View online
WX-7700MDX
37
37
5-14. PRINTED WIRING BOARD – MAIN Board (Conductor Side) –
•
See page 29 for Circuit Boards Location.
:Uses unleaded solder.
E2
B1
E1
B1
E1
C2
C/B
E2
B1
E1
B1
E1
C2
C/B
8
5
1
4
8
5
1
4
8
5
1
4
7
8
1
2
3
4
5
6
1
3
MAIN BOARD
(CONDUCTOR SIDE)
1-682-238-
21
3 2 1
8 7
6 5 4
(FRONT VIEW)
CN630
BUS CONTROL IN
(FOR SONY BUS)
AUX IN
(L)
(R)
PNJ2
REAR
(L)
(R)
PNJ1
FRONT
ANT
(L)
(R)
(L)
(R)
AUDIO OUT
BUS AUDIO
IN
1
CN4
2
(R)
(L)
A
SERVO (CD)
BOARD
CN1
1
3
4
5
1
3
4
5
TU1
(TUNER UNIT)
IC103
IC202
IC101
IC502
IC501
SUB WOFFER
OUT (MONO)
S501
( FREQUENCY SELECT)
FM200k
AM10k
AM10k
FM50k
AM9k
AM9k
C34
C130
C226
C334
C335
C336
FB505
FB506
B
C
D
E
F
G
H
I
J
K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A
L
• Semiconductor
Location
Ref. No.
Location
D1
F-12
D680
K-11
IC101
G-10
IC103
E-8
IC202
E-10
IC501
I-9
IC502
J-9
Q2
F-12
Q100
C-9
Q101
C-10
Q104
C-12
Q105
C-12
Q200
C-10
Q201
C-9
Q203
C-11
Q204
C-11
Q500
J-9
Q501
I-12
Q641
K-12
(Page 30)
WX-7700MDX
38
38
5-15. SCHEMATIC DIAGRAM – MAIN Board (1/4) –
•
See page 52 for Waveforms.
•
See page 55 for IC Block Diagrams.
D370
L4
C200
IC503
IC504
R10
C24
C33
C26
R11
C39
R17
C31
R16
R15
R31
C14
C15
D1
R7
C16
R508
C521
C519
C518
R507
C514
C526
C520
C522
C529
C527
C528
C513
C507
C506
C512
R504
C504
X500
R500
R502
FB502
R106
C103
C104
R105
R107
C106
C107
C532
IC501
R103
R102
C101
C100
C112
R113
R112
C109
C113
C203
R203
R202
C202
R204
C201
R201
R200
C105
R104
C102
R101
R100
R110
R111
C110
C111
R114
C208
C206
R208
R209
C207
C205
R205
R206
R207
C204
R108
R109
C540
C535
C536
IC502
R239
R141
C138
C233
R240
R142
C139
C234
R143
R241
C235
C140
R144
R242
C511
C505
C538
C539
C501
C502
C517
R506
FB501
C500
C534
R373
C530
C28
D373
C373
C374
C371
Q376
R370
Q375
R374
C377
C376
C375
CNP370
L5
IC2
R8
R9
C30
C533
C25
C29
C19
C17
C18
R14
D371
C537
C108
C531
D372
C508
C509
IC200
IC101
IC100
Q501
Q500
Q372
Q373
Q374
C32
R13
Q2
R12
R20
R21
C525
TU1
IC500
R505
R509
R510
FB503
C523
C524
R511
C541
FB509
FB504
R512
C542
C335
C336
C334
FB507
FB505
0
FB506
FB508
CN4
C34
MA8056-H
22p
TC7SET08FU
TC74VHC157
6.8k
0.047
10
16V
4700p
100k
0.47
22k
0.047
100
100
0
100
16V
0.1
MA8056
-H
1k
0.1
470
100p
100p
100p
1k
0.1
0.1
1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
1.5M
0.1
16.9344MHz
2.2M
560
47k
10
16V
10
16V
6.8k
10k
680p
22p
47
16V
NJM2370U33
6.8k
10k
680p
22p
10
16V
6.8k
10k
22p
100p
10
16V
6.8k
10k
680p
47k
680p
10k
10k
680p
47k
680p
10k
10k
10k
10k
680p
680p
47k
100p
680p
10k
10k
22p
680p
47k
6.8k
10k
10
16V
10k
10k
0.01
100
16V
16V
0.1
NJM2370U33
3.9k
3.9k
220p
220p
3.9k
3.9k
220p
220p
3.9k
3.9k
220p
220p
5.6k
5.6k
10
16V
10
16V
0.01
0.01
0.1
0.1
1000p
10k
1
0.1
1k
0.1
1
MA111
100
16V
16V
0.01
0.01
2SC2712
470
2SB1449R/S-DL
4.7k
100
16V
16V
0.1
0.01
30P
BA00ASFP
33k
5.6k
0.1
0.1
0.022
1
100
16V
16V
100
16V
16V
0.1
0
MA111
1
100p
22
20V
MA8068-L
18p
18p
NJM4580V
NJM4580E
NJM4580V
XN1A312
XN1A312
XN1A312
2SD1802FAT
XN1211
0.1
0
2SD1664
47k
0
0
100p
TUX-020
CXD2727Q-4
470
470
1k
1000p
68p
330
22p
330
15p
47p
100p
100p
2P
18p
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
B9
C1
C2
LIMIT
S
TP
XR
ST
R
ED
Y
DSPS
I
X
LAT
DSPSO
X
M
ST
TSCK
SELF_SW
PACK
TSTB
RFOK
EJECT
LOAD
PH3
PH2
D_SW
PH1
STB
A0
CD_DATA
CDM_ON
SEL_R
SE
L_GND
S
EL_L
XRST
XS24
CD_ON
DSPCK0
TUN_ON
TSO
TSI
2Y
1Y
1Y
2Y
XS24
MD_LRCK
CD_LRCK
CD_LRCK
MD_BCK
CD_DATA
MD_DATA
SEM
MPX
VSM
EE_DATA
EE_CLK
384FS
384FS
A
A
512FS
AA1
A
A2
AA3
AA1
AA2
AA3
AA4
AA5
FR
RR
SUB
RL
FL
EM
PH IN
AA
4
AA5
DSP_ON
IDA
ICK
GND
MPX
S-METER
GND
VDD(5V)
FM ANT IN
AM ANT IN
ANT GND
FM AGC
VCC 8.5V
SW SHIFT
AM DET
RDS
DAT IIC
CKL IIC
DAT-EEP
CKL-EEP
BU5V
VSS1
T.P
TST1
TST0
TST2
TST3
TST4
TST5
JPE1
JPE2
JPE3
VDD1
AVS3
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
AOUTL1
AOUTR1
AVD5
AVS5
AVD1
AVS1
LREF
LIN
AVS7
AVD7
AOUTL2
AVDX
XTLO38
XTLI38
AVSX
AOUTR2
AVD8
AVS8
RIN
RREF
AVS2
AVD2
AVS6
AVD6
AOUTL3
AVD4
AOUTR3
AVS4
VSS2
XRST
BFOT
SCK
REDY
TRDT
XLAT
RVDT
XS24
VDD2
VSS3
SO1
SO2
SO3
SOUT
SI1
SI2
SI3
SIN
BCK
LRCK
XMST
VDD3
AVSP
XPLLEN
PLCKL
XECKSTP
AVDP
VSS4
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
T.P
VDD4
AVSD
AVDD
AVD3
SEL
1A
1B
1Y
2A
2B
2Y
GND
VCC
ST
4A
4B
4Y
3A
3B
3Y
LIMIT
D_5V
D_GND
DR_6V
DR_6V
DR_GND
DR_GND
A_5V
A_GND
MAIN
GND
GND
VCC
NCO
EMPH
CD_RST
RFOK
A0
TSTB
STB
PACK
SELF_SW
TSCK
PH1
D_SW
PH3
LOAD
EJECT
384FS
BCK
LRCK
GND
VCC
GND
VCC
CTL
GND
N.B
VO
VI
VCC
GND
N.B
CTL
GND
VO
VI
OUT
VCC
CTL
GND
C
(CHASSIS)
+3.3V
REGULATOR
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER,
D/A CONVERTER
LOW-PASS
FILTER
LOW-PASS
FILTER
LOW-PASS
FILTER
REGULATOR
+8.5V
+3.3V REGULATOR
B+ SWITCH
B+ SWITCH
-1
-2
-1
-2
-1
-2
-1 -2
REGULATOR
+5V
Q372
REGULATOR CONTROL
SWITCH
REGULATOR CONTROL
SWITCH
REGULATOR
Q375,376
+6V
REGULATOR
+5V
CD CLOCK SWITCH
CD/MD
SELECTOR
D_DATA
PH2
TDSPSI
TDSPSO
(TUNER UNIT)
ANT
10mH
10mH
0
(Page 39)
(Page 41)
(Page 40)
(Page 32)
Ver 1.1
WX-7700MDX
39
39
5-16. SCHEMATIC DIAGRAM – MAIN Board (2/4) –
•
See page 52 for Waveforms.
•
See page 55 for IC Block Diagrams.
D102
R243
C217
R228
C306
R234
R232
R244
Q203
Q204
C225
C223
Q105
R149
C132
C129
R148
Q104
R134
R136
C224
R233
R231
R135
C131
C222
R133
C128
IC103
C118
R122
C322
C323
R320
R321
C321
C320
C117
C120
R146
C119
R123
C121
R217
R226
C213
C212
C215
R227
C214
R218
C216
R125 R126
C123
IC102
C240
C241
C242
R309
R308
R307
R306
R305
R304
R303
R302
R300
C300
C301
R139
C136
R140
C137
C230
C229
C232
R238
C134
C135
R237
C231
C314
C315
R314
Q311
R313
C316
R318
R315
Q300
R316
R317
R319
C310
C312
L301
IC301
R312
L300
C308
C307
C238
C239
C209
C210
R215
C237
R214
R213
R210
C236
C142
R212
R211
R118
R120
C144
C115
C211
C116
R115
C143
C141
C114
R117
R116
C319
C318
C124
C218
R221
R220
C221
R229
R245
R150
R230
R132
Q103
Q202
R131
C127
R129
C126
Q101
R130
R225
C220
Q200
Q100
R127
C125
R224
R128
R223
Q201
C219
R222
C227
C133
CN332
CN3
PNJ2
R119
R145
IC303
R121
R124
R216
IC202
R219
IC104
IC201
IC302
C305
C304
IC300
D103
R248
R246
R247
C243
C246
R236
R138
C228
C145
R147
C313
R137
R235
D101
C122
C130
C226
R153
C146
PNJ1
DA204UT106
1k
22p
47k
0.1
47k
47k
1k
2SD1328
2SD1328
100p
100p
2SD1328
1k
100p
100p
1k
2SD1328
47k
47k
2.2
50V
50V
220
220
220
2.2
50V
50V
2.2
50V
50V
220
2.2
50V
50V
NJM4580E
10
16V
4.7k
0.1
10 16V
1k
1k
100
16V
16V
0.1
22p
22p
4.7k
10
16V
4.7k
100p
4.7k
4.7k
10
16V
22p
22p
4.7k
10
16V
4.7k
100p
22k
56k
22p
NJM4580V
1
1
1
100
100
100
100
100
100
100
100
47k
4700p
0.47
1k
100p
10k
1
50V
1
50V
100p
1
50V
10k
100p
1
50V
1k
100p
1
50V
0.1
470
XP6501
1k
0.01
1k
1k
2SB1132
10k
1k
0
100
16V
16V
0.1
BA08SFP
1.5k
0.01
10
16V
1
1
10
16V
10
16V
56k
22p
22k
10k
56k
22p
2.2
10k
22k
10k
56k
22p
10
16V
0.1
0.1
56k
22p
2.2
10
16V
10k
22k
0.1
22
20V
100p
10 16V
22k
56k
10
16V
220
1k
1k
47k
47k
2SD1328
2SD1328
220
10
16V
220
2.2
50V
50V
DTC314TK
47k
47k
2.2
50V
50V
DTC314TK
DTC314TK
220
2.2
50V
50V
220
47k
47k
DTC314TK
2.2
50V
50V
220
100p
100p
5P
3P
2P
22k
4.7k
NJM4558E
7.5k
7.5k
7.5k
NJM4580E
7.5k
NJM4580V
NJM4580V
TC7660S
0.1
100
16V
16V
TDA7402TR
DA204UT106
0
1k
1k
1
1
10k
10k
0.1
0.01
47k
22
16V
1k
1k
DA204UT106
10 16V
1000p
1000p
1
1000p
6P
A1
A2
A3
A4
A5
A6
A7
A8
D1
D2
D3
D4
D5
D6
S
E
M
M
P
X
FL
RL
FR
RR
V
S
M
ID
A
IC
K
SWL
SWR
AUX_R
AUX_GND
AUX_L
AUX_GND
AUX_R
S
E
L
_
L
S
E
L
_
R
S
E
L
_
G
N
D
S
U
B
FL
RL
RR
FR
FL
RL
FR
RR
FL
FR
RL
RR
SWL
SWR
B
US
_
G
N
D
BUS_R
BUS_GND
BUS_L
B
U
S
_
R
B
U
S_
L
RL
FL
RR
AUX_L
FR
VOLATT
ACINRF
ACINRR
AM
IF
M
PX
M
PIN
MPOUT
QUAL
GND
VDD
M
D2G
M
D2
CREF
ACOUTL
ACOUTR
SW
INL
OUTLF
OUTLR
OUTRF
OUTRR
OUTSWL
OUTSWR
OUT55L
OUT55R
SW
INR
SE1L
SE1R
FD2L+
FD2L-
FD2R+
FD2R-
LEVEL
SDA
M
D1G/SE4R
MD1/SE4L
M
UX/PAUSE
V-
V-
V+
V+
GND
VCC
GND
VCC
GND
VCC
V-
V+
RL
FL
RR
FR
GND
ACINLF
ACINLR
CTL
VCC
OUT
C
GND
(CHASSIS)
(CHASSIS)
BUS AUDIO
IN
FRONT
REAR
AUDIO OUT
(L)
(R)
(L)
(R)
(L)
(R)
(L)
(R)
(L)
(R)
AUX IN
MUTING
MUTING
MUTING
MUTING
MUTING
MUTING
MUTING
MUTING
MUTING
MUTING
CENTER
VOLTAGE
GENERATOR
(FOR BIAS)
LOW-PASS
FILTER
LOW-PASS
FILTER
LINE AMP
LINE AMP
LINE AMP
DC/DC
CONVERTER
-1
-2
Q300,311
+8V REGULATOR
INPUT SELECTOR,
ELECTRICAL VOLUME,
FM MPX
FD1L+
FD1L-
FD1R+
FD1R-
AM
SM
SCL
REGULATOR
SUB WOOFER OUT
(MONO)
10µH
10µH
(Page 38)
(Page 41)
(Page 49)
WX-7700MDX
40
40
5-17. SCHEMATIC DIAGRAM – MAIN Board (3/4) –
•
See page 52 for Waveforms.
R583
C671
C670
R675
D672
D673
D674
R594
R593
R595
D550
D551
R579
R580
R581
R582
C553
C551
C552
R577
R576
R578
C555
C693
C580
C581
R681
R604
R605
R603
X551
C565
C564
C563
C566
C567
R586
R587
R585
R584
X550
R590
R596
R588
R514
R589
R598
C562
C556
R570
R569
R568
R567
R566
R565
R564
R563
R562
R560
R559
R558
R557
R556
R555
R572
R573
R571
C550
R554
L550
R552
R666
R667
R665
R664
R669
R661
R670
R671
S641
S640
C645
C646
D680
C660
C568
D552
R551
R550
R553
R549
R599
Q675
R676
R679
Q672
R674
R673
D671
TP1
TP2
R575
CN670
Q551
R574
R662
R660
Q674
BP670
X660
D670
D675
IC660
Q676
Q673
R591
C558
C559
C557
R597
R592
IC550
R501
S501
220k
1
1
1k
MAZL068D
MAZL068D
MAZL068D
47k
100
0
MA111
MA111
100
10k
10k
0
1000p
0.1
1000p
100
100
100
1000p
47
16V
1000p
1000p
6.8k
100k
100k
100k
3.6864MHz
22p
22p
1000p
0.1
10
16V
220k
100k
100k
220k
32.768KHz
10k
220
100k
100
100k
100k
0.1
470p
100
100
100
100
100
100
100
100
100
330
100
100
100
100
100
2.2k
2.2k
1k
1000p
2.2k
100k
100k
100k
100k
100k
47k
470
10k
0
1000p
1000p
MA111
0.1
0.01
MA111
100
100
1k
100k
100k
2SB1132
2.2k
4.7k
2SB1132
2.2k
47k
MAZL068D
0
30P
UN2111
1k
1k
1M
UN2211
4MHz
HZU6.8B2TR
HZU6.8B2TR
RRX9000-0401R#01
XN4381
UN2211
10k
18p
18p
220p
100k
0
MB90574CPMT
-G-382-BNDE1
100k
B1
B2
B3
B4
B5
B6
B7
B8
B9
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
E14
E15
E16
E17
E18
E19
E20
R
X
T
X
T
S
I
T
S
O
S
T
P
XRST
A0
STB
TSTB
MREF
LOAD
EJECT
RFOK
PH1
P
H
3
D
_
S
W
P
A
C
K
P
H
2
B
U
_
IN
S
E
L
F_
S
W
T
S
C
K
EE
_
C
L
K
E
E
_D
A
T
A
KEY0
KEY1
VSM
IDA ICK
MOT+
MOT-
I_DET
S
P
_
L
A
T
T
E
L
_
A
T
T
X
M
S
T
L
IM
IT
B
U
SO
N
SYSRST
RESET
M
D
_O
N
C
D
_
O
N
C
D
M
_
O
N
V
O
L
A
T
T
MD_IN
EMPH
BOOT
T
U
N
_O
N
OPEN_SW
CLOSE_SW
B
E
E
P
F
S
W
_
IN
FSW_SFT
FLASH_W
TX
RX
BOOT
KEY0
FL
A
S
H
_
W
BUSON
BU_IN
UNISI
FP_DATA
UNICKO
LINKOFF
A
C
C
_
IN
T
E
S
T
FL
FR
R
E
D
Y
OPEN_SW
CLOSE_SW
EMPH IN
ILL_IN
W_UP
S_ON
D
S
P
_O
N
X
R
S
T
X
L
A
T
X
S
2
4
U
N
IC
K
O
U
N
IS
O
U
N
IS
I
D
S
P
S
I
D
S
P
S
O
D
S
P
C
K
0
DSPCK0
DSPSI
SP_LAT
VCC
BEEP
UNISI
UNISO
VSS
C
DVCC
DVSS
AVCC
AVRH
AVRL
AVSS
KEYIN0
KEYIN1
VCC
VSS
X1A
X0A
VSS
X0
X1
VCC
VSM
SIRCS
HSTX
MD1
M
D0
UNICKO
I2CSIO
I2CCKO
VSS
MOT-
MOT+
SYSRST
ACCIN
TESTIN
CLOSESW
NCO
NCO
NCO
DIVER
CD_PH3
NCO
TX
RX
VOLATT
NCO
NCO
NCO
BOOT
NCO
NCO
NCO
NCO
NCO
NCO
NCO
BUCK_UP_5V
P_ON_LED
KEY0
ILL_ON_LED
BU_IN
SIRCS
SPE_CLK
UNISI
RESET
SYSTEM RESET
BUSON
LINK-OFF
BU_GND
ILL_GND
FP_DATA
UNICKO
SPE_SI
GND
ILL_ON_LCD
ILL_ON_LCD
ILL_ON
RXD
TXD
FLASH_W
BOOT
LEVEL_L
LEVEL_R
(CHASSIS)
G2
G3
S3
S2
S1
S0
D3/K
D2/C
D1
D0
G1/INT
G0/INT
F1
F0
CNVSS
XOUT
XIN
VSS
VDD
RESET
FLEXIBLE
BOARD
CONNECT
KEY
NC
NC
SPE_LAT
-1
-2
B+ SWITCH
Q674,675
SIRCS CONTROLLER
KEY ACTIVE
SWITCH
S640
FRONT PANEL
OPEN DETECT
FRONT PANEL
S641
CLOSE DETECT
AM
PON
SP LATCH
TUNON
FM ON
PACK-IN
EMPH IN
FSW SFT
WAKEUP
SUBP ON
NCO
NCO
NCO
OPEN SW
IDET
ILLIN
RSTX
M
D2
RAMBU
POW
ON
SIRCS RST
AD
ON
KEYACK
BU IN
M
D ON
DSPR
EDY
FP PULSE
CD PH2
FLASH W
CD LIM
IT
CD SELFSW
FSW
IN
CD PACK
CD DSW
CD PH1
CD RFOK
CD LM EJ
CD LM LO
CD XTALEN
CDM ON
FP CTRL
CD TSTB
CD STB
CD A0
CD XRST
DSPXM
ST
DSPPLL
CD CKO/TCKO
CD SO/TSO
CD
SI/TSI
DSPCKO
DSPSO
DSPSI
TELMUTE
BU
SON
EE CKO
EE SIO
D AUDSEL
ATT
D
SPRST
DSPLAT
D
SPON
MASTER CONTROLLER
(CD MECHANISM CONTROLLER)
B+ SWITCH
B+ SWITCH
Q672,673
CD ON
9K/10K
FM50k/AM9k
FM200k/AM10k
FREQUENCY
SELECT
S501
10µH
(Page 45)
(Page 38)
(Page 41)
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