Sony HCD-GX470 / HCD-GX570 / MHC-GX470 / MHC-GX570XM Service Manual ▷ View online
HCD-GX470/GX570
26
26
HCD-GX470/GX570
7-4. BLOCK DIAGRAM – PANEL, POWER SUPPLY Section –
REMOTE CONTROL
RECEIVER
IC610
FL701
FLUORESCENT
INDICATOR
TUBE
37 SW LED
KEY1 – KEY3
FLUORESCENT INDICATOR TUBE
/LED DRIVER
IC701 (2/2)
SYSTEM CONTROLLER
IC901 (4/4)
F906
RECT
D902 – 905
PROTECT
DETECT
Q011
RECT
D001 – 004
RECT
D910
D910
D006
S611 – 613,
S621 – 628,
S621 – 628,
S631 – 638
7
O-POWER-RELAY
9
I-AC-CUT
RESET SIGNAL
GENERATOR
IC902
RESET SWITCH
Q901
D902
+3.3V
XM +5.2V
UNREG +16V
EVER +10V
1
I-AC-PULSE
10
I-XRESET
10 I-VOL-A
11 I-VOL-B
45 – 58,
61 – 67
S1 – S21
68 – 80
G1 – G13
19 – 21
LED DRIVE
Q621
D622
SUBWOOFER
69 O-STBY-LED
80 I-XSIRCS-IN
D611
STANDBY
ROTARY
ENCODER
VOLUME
S671
12 I-JOG-A
13
4
I-JOG-B
X2
3
X1
ROTARY
ENCODER
S672
(MULTI JOG)
X701
4.19MHz
14
X2 (16MHZ)
15
X1 (16MHZ)
X902
16MHz
11
XT2 (32.768KHZ)
12
XT1 (32.768KHZ)
X901
32.768kHz
SO1
I-VFD-DATA
9
77
SI1
O-VFD-DATA
8
76
SCK1
O-VFD-CLK
7
78
CE
O-VFD-CE
16
75
XRESET
O-VFD-RESET
6
74
65 I-KEY0
79 I-WAKEUP
S601 – 606
(AC IN)
RY901
POWER ON/OFF
RELAY DRIVE
Q002
CD DSP +1.8V
+1.8V
REGULATOR
IC203
REGULATOR
Q903, 904
AC DETECT
Q902
D008
D001
D301, 302
D908
VDD (+3.3V)
+9V
M+9V
M+7V
F907
RECT
D011 – 014
RECT
D021 – 024
F904
F905
RECT
D401
D401
D007
H
PROTECT
+9V
REGULATOR
IC021
+9V
REGULATOR
IC011
+3.3V
REGULATOR
IC006
+5V
REGULATOR
IC007
XM +5V
+5V
REGULATOR
IC301
RELAY B+
23
O-FRONT-SP-RELAY
B+ SWITCH
Q041, 042
–27V
REGULATOR
Q902
AMP
SECTION
B+
–VFL
VF
VF
PT902
SUB POWER
TRANSFORMER
PT901
MAIN POWER
TRANSFORMER
(GX570)
(Page 25)
HCD-GX470/GX570
27
27
HCD-GX470/GX570
•
Note For Printed Wiring Boards and Schematic Diagrams
•
Indication of transistor
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– CD Board –
no mark :CD PLAY
– XM Board –
no mark : XM
– Other Boards –
no mark : TUNER (FM/AM)
(
under no-signal (detuned) conditions.
– CD Board –
no mark :CD PLAY
– XM Board –
no mark : XM
– Other Boards –
no mark : TUNER (FM/AM)
(
) : CD PLAY
〈〈
〉〉
: TAPE PLAY
{
} : TAPE REC
[
] : XM
∗
: Impossible to measure
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Circled numbers refer to waveforms.
•
Signal path.
F
: TUNER (FM/AM)
J
: CD PLAY
E
: TAPE PLAY (DECK-A)
d
: TAPE PLAY (DECK-B)
G
: REC
O
: XM
f
: AUDIO IN
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
•
Circuit Boards Location
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
CD board
SW board
MOTOR (LD) board
SENSOR board
DRIVER board
MOTOR (TB) board
TUNER (FM/AM)
KEY LEFT board
PANEL board
KEY RIGHT board
MIC. AUX. HP board
MAIN board
SUB WOOFER board
POWER board
DECK board
SW-SP board
XM board
(GX570)
(GX570)
TRANSFORMER board
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
HCD-GX470/GX570
28
28
HCD-GX470/GX570
7-5. PRINTED WIRING BOARD – CD Board –
: Uses unleaded solder.
•
See page 27 for Circuit Boards Location.
R256
C257
R260
C206
C205
C322
R323
R322
R321
R324
C223
C321
C268
C267
R271
R203
C226
R201
C227
C110
C108
C102
C203
C204
C101
C274
C202
R207
C215
R202
C201
R423
R421
C424
C276
C210
Q321
C207
C266
C275
C323
C277
C406
R401
C401
C219
R276
C271
C272
C104
C105
C107
C109
C232
C220
X201
IC203
C403
R257
C258
C260
C261
R258
C304
C208
R101
R265
R266
R267
C264
C265
R278
C111
C214
R270
C221
C292
C291
R292
R291
IC201
C217
C218
C224
R451
R102
R103
R104
R105
R107
R108
R109
R110
R111
C451
IC402
C256
C251
C252
C254
C253
R254
R255
R252
R253
CN301
C213
C222
C405
R113
C404
R452
C112
R275
R277
C103
R112
C301
C303
C273
R268
C113
CN102
C230
R250
R280
M401
M402
S201
E
1-868-067-
12
(12)
CD BOARD
(COMPONENT SIDE)
1
3
5
4
1-868-067-
12
(12)
CD BOARD
(CONDUCTOR SIDE)
M
M
1
1
7
14
28
22
8
21
15
30
90
91
120
60
31
61
(SPINDLE)
(LIMIT)
(SLED)
A
MAIN
BOARD
CN301
TP
(RFACI)
TP
(VC)
OPTICAL PICK-UP BLOCK
(KSM-213DCP)
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
(Page 34)
HCD-GX470/GX570
29
29
HCD-GX470/GX570
7-6. SCHEMATIC DIAGRAM – CD Board –
•
See page 51 for Waveforms.
•
See page 53 for IC Block Diagrams.
•
See page 56 for IC Pin Function Description.
C208
C205
R324
R101
R292
C110
R451
R102
R103
R104
R105
R107
R108
R109
R110
R111
R255
R253
C406
R254
R252
R250
R268
R322
R321
C264
CN301
C222
C213
R291
C201
C219
R112
R113
C203
C108
C102
C101
C103
C105
C111
C104
C109
C107
C113
C112
R275
R277
R276
C271
C221
C273
C261
C260
R265
R266
R267
R258
C258
R260
C256
C207
C254
C253
C252
C251
C232
C206
C224
R278
C272
C204
C218
C291
C292
C217
C202
R401
C303
C321
R323
R421
C404
R207
C226
C265
C210
R256
C257
C323
C424
R423
C405
M402
M401
IC402
TP
C230
TP
C220
C274
R257
C304
IC201
C401
R202
C268
C215
C276
C277
R201
CN102
C266
C267
R203
C275
C214
X201
R270
R271
C223
R280
R452
C451
Q321
S201
C227
IC203
C301
C322
0.1
0.1
100k
100
100
220p
22k
100
100
100
100
100
100
100
100
100
1k
1k
0.1
10k
10k
1M
10k
2.2
2.2
1000p
16P
0.1
0.1
100
100
10V
10V
0.1
100
100
100
10V
10V
220p
22p
22p
22p
22p
220p
220p
220p
220p
22p
22p
100
100
47k
0.1
0.1
470p
0.01
0.47
4.7k
1k
4.7k
220k
220p
0
0.1
100 10V
4700p
470p
4700p
470p
0.1
0.1
0.1
100
0.1
0.1
0.1
470p
470p
0.1
0.1
0
10
1000p
0
0
0.1
0
1
0.1
0.1
22k
0.1
100
10V
10V
0.1
10k
0.1
BA5947FM
100p
0.1
0.1
100k
1
CXD3014A-201R
220
10V
10V
0
10p
0.1
1
1
0
23P
10p
5p
5p
0.1
16.9344MHz
1k
1M
0.1
0
10k
0.047
2SA2119K
1
BH18LB1WG-TR
0.1
1
SP
-
SP+
SP+
SP-
SL+
SL-
SL
+
SL
-
OPIN-
OPIN+
CH1FIN
CH1RIN
CH2FIN
CH2RIN
GND
CNF4
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
CH4OUTR
CH4OUTF
CH3OUTF
CH3OUTR
POWVCC
MUTE
GND
CH3RIN
CH3FIN
CH4IN
CH4CAPA
OPOUT
PREVCC
VREF
GAIN-SW
MIRR
DFCT
FOK
VSS
LOCK
MDP
SSTP
IOVSS1
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
IOVDD1
AVDD0
AVSS0
E
F
TEI
TEO
FEI
FEO
VC
A
B
C
D
AVDD4
RFDCO
PDSENS
AC_SUM
EG_IN
LD
PD
RFC
AVSS4
RFACO
RFACI
AVDD3
BIAS
ASYI
ASYO
VPCO
VCTL
AVSS3
CLTV
FILO
FILI
PCO
BCKI
LRCKI
LRCK
VSS
PCMD
BCK
VDD
IOVDD2
DOUT
TEST
IOVSS2
XVSS
XTAO
XTAI
XVDD
AVDD1
AOUT1
VREFL
AVSS1
AVSS2
VREFR
AOUT2
AVDD2
IOVDD0
IOVSS0
XTACN
XRST
VSS
VDD
SENS
WFCK
XUGF
XPCK
GFS
C2PO
SCOR
VDD
COUT
PCMDI
CLOK
SVSS
SVDD
SVSS
SVDD
VSS
SVDD
VDD
VSS
TEST1
SVSS
SVSS
SVDD
JTAGTCK
JTAGTDI
JTAGTDO
JTAGTMS
TRST
VDD
TES1
PLLVDD
PLLVSS
ACK-MP3
REQ-MP3
IREQ-MP3
SSTB-MP3
XLAT-MP3
XLAT
CLK2
DATA
DATA2
T+
VC
GND
LD
PD
F+
T-
F-
VCC
SCOR
SENS
CLK
XRST
D-OUT
DVDD(3.3V)
AVDD(3.3V)
E
D
A
B
C
F
VR
IREQ-MP3
REQ-MP3
ACK-MP3
XLAT-MP3
XLAT
DATA
DATA-MP3
CLK-MP3
GND
(LIMIT)
AUTOMATIC
POWER
CONTROL
CD DSP
FOCUS/TRUCKING
(SPINDLE)
(SLED)
(VC)
(RFACI)
+1.8V REGULATOR
D-GND
L-CH
A-GND
R-CH
M-GND
M+7V
COIL DRIVE,
SPINDLE/SLED
MOTOR DRIVE
D-MUTE
XATCN
NC
VOUT
VIN
STBY
(Page
37)
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