Sony MDS-JE470 Service Manual ▷ View online
36
MDS-JE470
SECTION 6
DIAGRAMS
6-1. CIRCUIT BOARDS LOCATION
KEY-SW board
DISPLAY board
BD board
MAIN board
PT board
VOL-SEL board (SP model)
•
Abbreviation
SP
SP
: Singapore model
37
37
MDS-JE470
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in
• All capacitors are in
µF unless otherwise noted. pF: µµF
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.
• C : panel designation.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
a
: Through hole.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
(The other layers' patterns are not indicated.)
• 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 : STOP
(
)
: PLAY
<
>
: REC
∗
: 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.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
E
: PB
j
: REC
p : PB (DIGITAL OUT)
l : REC (DIGITAL IN)
l : REC (DIGITAL IN)
• Abbreviation
CND : Canadian model
SP
SP
: Singapore model
HK
: Hong Kong model
AUS
: Australian model
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
B
These are omitted.
C
E
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
• WAVEFORMS
– MAIN Board –
– BD Board –
1
IC101 ek (RF)
2
IC101 ef (FE)
(Play mode)
3
IC101 wh (TE)
(Play mode)
4
IC151 qh (OSCI)
5
IC151 wj (LRCK)
6
IC151 wk (XBCK)
7
IC151 o; (FS4)
8
IC171 3
1.3Vp-p
0.2Vp-p
1.6Vp-p
3.1Vp-p
22 nesc
3.2Vp-p
22.6
µsec
3.8Vp-p
354 nsec
22 nsec
5.67
µsec
1.0Vp-p
3.2Vp-p
1
IC1 qd (XOUT)
2
IC550 qs
2.7Vp-p
2.6Vp-p
100 nsec
22 nsec
MDS-JE470
38
38
6-2. BLOCK DIAGRAMS – BD SECTION –
F
C
B
D
A
E
I
J
J
I
B
A
C
D
E
F
DETECTOR
J
I
A
B
C
D
D
E
F
LD
PD
LASER DIODE
ILCC
PD
OPTICAL PICK-UP
(KMS-260B/260E)
(KMS-260B/260E)
AUTOMATIC
POWER CONTROL
Q121, 122
APC
PD
APCREF
AT
AMP
B.P.F.
WBL
ADFM
ADIN
ADFG
ABCD
AMP
ABCD
FE
TE
SE
F0CNT
WBL
3T
EQ
COMMAND
SWDT
SCLK
XLAT
RFO
RF AGC
& EQ
AGCI
EQ
RF
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
TEMP
MORFO
MORFI
3T
WBL
AUX
PEAK
BOTM
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC141
OUT4F
OUT4R
M101
(SPINDLE)
OUT2F
OUT2R
M102
(SLED)
OUT1F
OUT1R
OUT3F
OUT3R
FCS+
FCS–
TRK+
TRK–
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
IN4R
IN4F
IN2F
IN2R
IN1F
IN1R
IN3F
IN3R
MOD
SPFD
SPRD
APCREF
SFDR
SRDR
FFDR
FRDR
TFDR
TRDR
PSB
PWM GENERATOR
FROM CPU
INTERFACE
DIGITAL SERVO
SIGNAL PROCESSOR
IC151 (2/2)
RECP
AUX1
ABCD
FE
TE
SE
PEAK
BOTM
XLRF
CKRF
DTRF
XLAT
SCLK
SWDT
FILI
PCO
CLTV
FILO
EFMO
ADDT
DATAI
DIGITAL IN
(OPTICAL)
NC
NC
NC
NC
BUFFER
IC171
IC151 (1/2)
TX
ASYO
ASYI
RFI
SCTX
HR901
OVER WRITE HEAD
ADFG
F0CNT
SPFD
SPRD
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE
DIN0
DOUT
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC151 (1/2)
INTERNAL BUS
DADT
XBCK
LRCK
FS256
OSCI
OSCO
DQSY
SQSY
XINT
SENS
SRDT
SWDT
SCLK
XLAT
MNT0
MNT1
MNT2
MNT3
SHOCK
XBUSY
SWDT
SCLK
SWDT
SCLK
XLATCH
MNT1 (SHOCK)
MNT2 (XBUSY)
DIG-RST
SQSY
DQSY
LDON
WR-PWR
MOD
XINT
SENS
SRDT
LDIN
LDOUT
IN1
IN2
OUT1
OUT2
VZ
LOADING
MOTOR DRIVE
IC440
M103
(LOADING)
DQ1 – DQ4
A0 – A9
D0 – D3
A00 – A09
XOE
XWE
XRAS
XCAS
OE
WE
RAS
CAS
D-RAM
IC153
DIN1
SYSTEM CONTROLLER
IC1 (1/2)
HF MODULE
ADDT
DADT, BCK, LRCK
SWDT, SCLK
REFLECT
PROTECT
LD-LOW
SDA
SCL
UNREG
+12V
65
LIMIT-IN
OUT-SW
S101
(LIMIT IN)
PLAY-SW
• SIGNAL PATH
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
: REC (ANALOG IN)
: REC (DIGITAL IN)
S103
(OUT SW)
S104
(PLAY SW)
REC-SW
S105
(REC POSITION)
XBCKI
LRCKI
S102
(REFLECT/PROTECT DETECT)
HIGH REFELECT RATE/
WRITE PROTECT
LOW REFELECT RATE/
UN-PROTECT
OVER WRITE
HEAD DRIVE
IC181
, Q181, 182
WAVE
SHAPER
IC600
OPTICAL
RECEIVER
IC611
11
9
8
4
1
2
48
47
46
40
33
38
37
36
32
35
34
26
28
18
17
16
20
12
30
29
5
6
7
10
LASER ON
SWITCH
Q101
LD/PD
AMP
I-V
AMP
I-V
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RF AMP
B.P.F.
PEAK &
BOTTOM
6
8
92
91
88
89
86
85
81
80
83
13
67 65 66 75 74 63 64
82
27
25
21
23
12
10
14
15
19
18
29
30
3
4
16
M
M
M
AUTOMATIC
POWER
CONTROL
DIGITAL SERVO
SIGNAL
PROCESS
ANALOG MUX
A/D CONVERTER
SERIAL/PARALLEL
CONVERTER,
DECODER
AUTO
SEQUENCER
V-I
CONVERTER
HF MODULE
SWITCH
IC102
, Q131 – 134
100
60
59
62
61
53
54
57
78
79
94 93
10
12 11
14
9
8
5 6 7
1 2 3 4
43
47
16
29
27
28
26
21
20
19
23
24
22
25
17
46
44
22
3
4
23
15
ADIP
DEMODULATOR/
DECODER
SPINDLE
SERVO
COMPA-
RATOR
PLL
FILTER
SUBCODE
PROCESSOR
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
CPU
INTERFACE
MONITOR
CONTROL
CONTROL
18
57
52
54
56
20
25
58 32
33 50
59 48
31
XRST
CLOCK
GENERATOR
49, 48, 50, 51
1, 2, 24, 25
34 – 31, 36 – 40, 45
5, 9 – 12, 14 – 18
C
D
B
A
67 66
3
6
5
VCC 8
+5V
VCC 1
SCL
6
SDA
5
45
60
7
2
55
49
51
53
61
44
M
REFERENCE
VOLTAGE SWITCH
Q440,445
+5V
D+3V
+3.3V
REG.
IC190
EEPROM
IC195
(Page39)
(Page39)
(Page39)
(Page39)
MDS-JE470
39
39
– MAIN SECTION –
X550
45.1584MHz
LED DRIVE
Q726
ROTARY
ENCODER
FL DRIVE
Q767
D726
STANDBY
A/D, D/A CONVERTER
IC500
SDTO
ADDT
DADT, BCK,
LRCK
LRCK
SDTI
A
B
LINE AMP
IC310
MUTING
Q181, 281
MUTING
CONTROL SWITCH
Q380
REMOTE CONTROL
RECEIVER
IC781
OSC
J300
ANALOG
IN
L
R
L
R
D382
D381
ANALOG
OUT
ADA,LATCH
DAT
P1
P2
G13
MUTE
ADA,RESET
CLK
CS
SP
S990
AC
(TO FL750)
TR900
POWER
TRANSFORMER
UNREG +12V
LOADING MOTOR
DRIVER (IC440) B+
RECT
D421
D421
UNREG +12V
+5V
AUDIO
CIRCUIT
UNREG –12V
RECT
D411,412
J800
PC LINK
RECT
D466–467
VOLTAGE
SELECTOR
115V 230V
RECT
D471, 472
40 – 51
5 – 39
S1–S35
96,95,94
KEY0 – KEY2
G1 – G12
S1
–
S35
G13
G1
–
G12
FLUORESCENT INDICATOR TUBE
FL750
FL/LED DRIVER
IC760
HIGH-PASS FILTER,
DIGITAL
ATTENUATOR
DIGITAL
ATTENUATOR,
SOFT MUTE
A/D
CONVERTER
BLOCK
SUB-
TRACKTION
D/A
CONVERTER
BLOCK
AUDIO
INTERFACE
CONTROLLER
CLOCK
GENERATOR,
CLOCK DIVIDER
CONTROL
REGISTER
INTERFACE
BICK
LRCK
A1 OUT
A1 IN
DADT
BCK
LRCK
AINL
AINR
XTI
FLDT
FLCK
FLCS
JOG0
GND
SW
JOG1
P DOWN
l
AMS L
PUSH ENTER
S713
S701 – 706, 711, 712,
S714-716, 721 – 724,
S726
A
B
SWDT
SCLK
CDTI
CCLK
CS
PD
SIRCS
OSCI
C769, R769
OSCO
MIX AMP
IC360
(1/2)
MIX AMP
IC360
(2/2)
OSC
IC550
LOW-PASS
FILTER
IC370
(1/2)
LOW-PASS
FILTER
IC370
(2/2)
D
C
SWDT, SCLK
1024FS
(Page38)
(Page38)
(Page38)
(Page38)
• SIGNAL PATH
RST
XIN
XOUT
X15
10MHz
SYSTEM CONTROLLER
IC1 (2/2)
S.RST
13
14
12
11
15
16
17
19
3
2
AOUTL+
AOUTL–
26
25
AOUTR+
AOUTR–
28
27
9
3
39
24
40
15
13
61
62
60
52
1
LED DRIVE
Q755
D775
MD LP
2
58
59
63
38
STB
81
IIC DATA
IIC DATA
IIC DATA
GND
GND
IIC CLK
IIC BUSY
IIC BUSY
IIC POWER
IIC POWER
30
29
23
28
5
3
4
1
2
6
4
4
5
88
87
1
3
1 2 84
19 12
–32V
REGULATOR
IC421
–32V
(FL DRIVER (IC760) B–)
+3.3V
REGULATOR
IC401
RECT
D431,432
RECT
D401-404
TR950
POWER
TRANSFORMER
RELAY
DRIVE
Q911
6
IC600(2/2)
BUFFER
9
IC406
RESET
RESET
VCC
3
5
D406
+3.3V
(SYS)
(SYS)
+3.3V
(BACKUP)
D409
D408
BT406
LITHIUM
BATTERY
CN406
OUT
+5V
VIN
3
1
+3.3V
REGULATOR
Q490
IC411
+5V
REGULATOR
VT +3.3V
(TO IC500)
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
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