Sony MDS-NT1 Service Manual ▷ View online
36
36
MDS-NT1
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – SERVO Section –
F
C
B
D
A
E
I
J
J
I
B
A
C
D
E
F
DETECTOR
J
I
A
B
C
D
B
C
D
E
F
LD
PD
LASER DIODE
ILCC
PD
OPTICAL PICK-UP BLOCK
(KMS-262E)
AUTOMATIC
POWER CONTROL
Q202, 203
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
IC401
OUT4F
OUT4R
M101
(SPINDLE)
OUT2F
OUT2R
M102
(SLED)
OUT3F
OUT3R
OUT3R
OUT1F
OUT1R
OUT1R
FCS+
FCS–
TRK+
TRK–
TRK–
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
IN4R
IN4F
IN2F
IN2R
IN3F
IN3R
IN1F
IN1R
MOD
SPFD
SPRD
APCR
SFDR
SRDR
FFDR
FRDR
FRDR
TFDR
TRDR
TRDR
PSB
PWM GENERATOR
FROM CPU
INTERFACE
DIGITAL SERVO
SIGNAL PROCESSOR
IC201 (2/2)
RPWR
AUX1
ABCD
FE
TE
SE
PEAK
BOTM
XLRF
CLRF
CLRF
DTRF
XLAT
SCLK
SWDT
FILI
PCO
CLTV
FILO
EFMO
ADDT
DATAI
IC201 (1/2)
TX
ASYO
ASYI
RFI
SCTX
HR901
OVER WRITE HEAD
ADFG
F0CN
SPFD
SPRD
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE
DIN0
DOUT
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC201 (1/2)
INTERNAL BUS
DADT
XBCK
LRCK
LRCK
FS256
DADT
BCK
LRCK
FS256
OSCI
OSCO
DQSY
SQSY
XINT
SENS
SRDT
SWDT
SCLK
XLAT
MNT0 (FOK)
MNT1 (SHCK)
MNT2 (XBUSY)
MNT3 (SLOC)
SHOCK
XBUSY
SWDT
SCLK
SWDT
SCLK
XLATCH
SHOCK
XBUSY
D. RESET
SQSY
DQSY
LDON
WRPWR
MOD
XINT
SENSE
SRDT
LOAD-IN
LOAD-OUT
IN1
IN2
VZ
LOADING
MOTOR DRIVE
IC440
M103
(LOADING)
DQ1 – DQ4
A0 – A10
D0 – D3
A00 – A10
XOE
XWE
XRAS
XCAS
OE
WE
RAS
CAS
WE
RAS
CAS
D-RAM
IC152
DIN1
SYSTEM CONTROLLER
IC301 (1/2)
HF MODULE
DADTI, XBCKI,
LRCKI, DIN1
DADT, BCK,
LRCK, FS256
SWDT, SCLK
REFLECT
PROTECT
LOAD-LO
+5V
63
LIMIT-IN
REC-SW
S101
(LIMIT IN)
OUT-SW
•
SIGNAL PATH
: PLAY
: REC
: REC
S105
(REC)
S103
(OUT)
PLAY-SW
S104
(PLAY)
S102-1
(REFELECT RATE DETECT)
S102-2
(PROTECT DETECT)
–1
S102
–2
XBCKI
LRCKI
DADTI
XBCKI
LRCKI
DIN1
OVER WRITE
HEAD DRIVE
IC181, Q181, 182
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
6
7
10
LASER ON
SWITCH
Q201
LD/PD
AMP
I-V
AMP
I-V
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RF AMP
B.P.F.
PEAK &
BOTTOM
6
8
98
97
15
80 78 79 86 85 76 77
99
27
25
12
10
10
21
23
23
19
18
18
14
15
15
29
30
3
4
16
M
M
M
DIGITAL SERVO
SIGNAL
PROCESS
ANALOG MUX
A/D CONVERTER
SERIAL/PARALLEL
CONVERTER,
DECODER
AUTO
SEQUENCER
V-I
CONVERTER
HF MODULE
SWITCH
Q701 – 704
115
73
72
75
74
67
68
70
91
94
14 13
16
11 10 6 7 8
1 2 3 4
38
37
37
19
36
34
35
33
26
25
24
28
29
27
32
20
47
46
46
22
4
5
5
23
17
ADIP
DEMODULATOR/
DECODER
SPINDLE
SERVO
COMPA-
RATOR
PLL
FILTER
SUBCODE
PROCESSOR
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC/ATRACK3
ENCODER/DECODER
CPU
INTERFACE
MONITOR
CONTROL
CONTROL
16
43
48
46
46
42
18
23
49
XRST
12
30
31 51
55 54
29
CLOCK
GENERATOR
42 – 45
2, 3, 24, 25
48 – 56, 59, 60
8 – 12, 15 – 19, 21
C
B
A
65 64
3
6
5
7
2
45
47
53
50
58
56
52
57
59
M
REFERENCE
VOLTAGE SWITCH
Q401, 440
IOP
87
COMPARATOR
IC701
X801
90.3168MHz
OUT1
OUT2
7
6
5
WP
SCL
SDA
EEP-WP
SCL
SDA
EEPROM
IC195
108
100
107
104
105
105
103
102
102
109
110
(Page 37)
(Page 37)
(Page 37)
37
37
MDS-NT1
6-2.
BLOCK DIAGRAM – MAIN Section –
11
10
10
7
3
2
4
2
4
8
7
6
7
6
5
39
40
40
42
35
1
NET MD SECURITY,
DIGITAL SIGNAL PROCESSOR,
USB INTERFACE
IC901
USB
CN4
A
B
C
5
12
11
11
10
9
CN200
57
56
51
53
52
3
73
74
5
3
4
38
84 82 81
93
37
76 75
77
58
47
46
5
3
7
1
2
X550
12MHz
13
11
X301
10MHz
36
17
MUTING
Q170, 270
HEADPHONE
MUTING
Q451
MUTING
CONTROL SWITCH
Q100
MIX AMP
IC501 (1/2)
MIX AMP
IC501 (2/2)
PHONES
ANALOG OUT
PHONE
LEVEL
J180
HEADPHONE AMP
IC503
BUFFER
IC550
Net MD
D732
D751
(PLAY)
LED DRIVE
Q732
LED DRIVE
Q751
D731
(REC)
LED DRIVE
Q731
B
/>
S726
95
10
x
/Z
S702
RESET
SIGNAL
GENERATOR
IC420
RV301
+3.3V
REGULATOR
IC402
+3.3V
REGULATOR
IC933
SWITCHING
REGULATOR
IC400
–5V
REGULATOR
IC451
+5V
REGULATOR
IC450
VOLTAGE
DETECT
IC401
SWITCHING
Q400
–
+
DC IN 9V
J400
THP400
+9V
DADTI, XBCKI,
LRCKI, DIN1
LRCKI, DIN1
DADT, BCK,
LRCK, FS256
LRCK, FS256
SWDT, SCLK
DADTI
XBCKI
XBCKI
DIN1
DSPIF3
DSPIF2
DSPIF2
DSPIF0
DSPCLK
DP
DM
USBSW
USBEN
CPUINT
CPUXCS
CPUCK
CPUSI
CPUSO
PLLSW
RESET
UINT
UCS
UCLK
USO
USI
UPLLSW
URESET
XTAL
EXTAL
D901
2
3
3
1
D/A CONVERTER
IC505
SDTI
BICK
LRCK
BICK
LRCK
CDTI
CCLK
CCLK
SWDT
SCLK
SCLK
CSN
MCLK
DADT
BCK
LRCK
BCK
LRCK
FS256
PDN
AOUTL+
AOUTL–
AOUTL–
AOUTR+
AOUTR–
AOUTR–
XIN
XOUT
NETMD_INT
NETMD_CS
NETMD_CLK
NETMD_SO
NETMD_SI
ADA_LATCH
ADA_RESET
NETMD_PLLSW
NETMD_RESET
NETMD_VBUS
UNIT
UCS
UCLK
USO
USI
UPLLSW
URESET
MUTE
P. DOWN
LED1
LED2
LED3
KEY1
KEY0
S. RESET
SYSTEM CONTROLLER
IC301 (2/2)
D301
LIN
RIN
LOUT
ROUT
MUTE
BT420
LITHIUM
BATTERY
SYS+3.3V
BAK+3.3V
D422
D421
+5V
BD+3.3V
A+5V
A–5V
• SIGNAL PATH
: PLAY
: REC
8
LRCKI
DSPIF2
+2.6V
REGULATOR
IC926
D+2.6V
USB+
USB–
USB–
VBUS
(Page 36)
(Page 36)
(Page 36)
38
38
MDS-NT1
6-3.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
Note on Printed Wiring Boards:
•
•
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.)
•
A
: B+ Line.
•
B
: B– Line.
• Power voltage is dc 9V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PLAYBACK
(
no mark : PLAYBACK
(
) : STOP
∗
: 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.
E
: PLAY
l
: REC
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.
4.5 Vp-p
22.7 ns
• Waveforms
– BD Board –
– BD Board –
1
IC101
ek
(RF) (PLAY mode)
2
IC101
ef
(FE) (PLAY mode)
3
IC101
wh
(TE) (PLAY mode)
6
IC201
eg
(XBCK) (PLAY mode)
5
IC201
ef
(LRCK) (PLAY mode)
4
IC201
w;
(OSCO)
– MAIN Board –
qa
IC301
qa
(XOUT)
qd
IC505
4
(LRCK) (PLAY mode)
qf
IC505
2
(BICK) (PLAY mode)
qs
IC901
5
(DSPCLK)
qg
IC505
1
(MCLK)
1.4 Vp-p
approx
460 mVp-p
460 mVp-p
approx
620 mVp-p
620 mVp-p
2.6 Vp-p
11 ns
4.6 Vp-p
354 ns
3 Vp-p
100 ns
4.2 Vp-p
88 ns
4 Vp-p
22.7 ns
3.6 Vp-p
354 ns
4.2 Vp-p
88 ns
qh
IC400
7
(EXT)
9.1 Vp-p
15.8
µ
s
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
39
39
MDS-NT1
6-4.
PRINTED WIRING BOARD – BD Board –
(SLED)
M
–
+
IC101
IC701
IC201
IC401
IC152
IC181
BD BOARD
(COMPONENT SIDE)
BD BOARD
(CONDUCTOR SIDE)
(REC)
(PLAY)
(OUT)
(LIMIT IN)
E
E
2B
1B
2C
1C
OPTICAL PICK-UP
BLOCK
(KMS-262E)
FLEXIBLE BOARD
1-683-807-
12
(12)
1-683-807-
12
(12)
HR901
OVER WRITE
HEAD
(LOADING)
M
–
+
M
M101
(SPINDLE)
1
12
13
24
36
25
48
37
C
C
E
B
3
1
5
4
C
7
1
I+3V
IOP
GND
TE
FE
VC
RF
TEST PIN
(FOR ADJUSTMENT)
D
S
G
3
2
4
1
2
3
1
2
IC933
3
1
2
IC926
IC195
A
MAIN BOARD
CN101
B
MAIN BOARD
CN102
S102-1
REFLECT
RATE
DETECT
S102-2
PROTECT
DETECT
-1
-2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A
B
C
D
E
F
G
H
I
1
30
31
60
120
91
90
61
1
16
32
17
14
13
13
26
1
26
1
7
1
8
14
8
5
1
4
E
B
C
C
B
E
B
C
E
D
S
G
S102
B
E
C
B
D101
I-6
D501
C-9
D502
C-9
IC101
H-10
IC152
D-9
IC181
B-10
IC195
C-12
IC201
D-11
IC401
G-13
IC701
F-10
IC926
E-13
Ref. No.
Location
IC933
C-14
Q181
C-9
Q182
C-9
Q201
F-7
Q202
G-9
Q203
E-10
Q701
E-7
Q702
F-6
Q703
F-7
Q704
F-6
Ref. No.
Location
• Semiconductor Location
(Page 42)
(Page 42)
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