Sony MDS-NT1 Service Manual ▷ View online
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)
40
40
MDS-NT1
6-5.
SCHEMATIC DIAGRAM – BD Board (1/2) –
•
See page 38 for Waveforms.
•
See page 48 for IC Block Diagrams.
C410
TP616
TP615
TP614
TP613
TP612
TP611
TP609
TP608
TP607
TP606
TP605
TP604
TP603
TP602
TP601
R703
R705
R702
C104
R106
TP204
C107
R110
R108
R104
R107
Q203
Q202
R102
R101
C111
C112
TP209
TP207
C109
TP213
D101
R111
C110
TP11
R112
C113
R113
R115
R116
R114
C115
TP214
TP212
R119
R120
C117
C116
C118
C120
C119
TP216
TP217
TP218
TP219
TP163
C406
C490
C411
C407
R405
C409
R109
C299
IC701
R118
R117
C121
C122
R713
R710
C405
C101
Q201
Q701
Q702
Q703
IC181
C505
C503
R553
C502
C504
R552
C550
TP501
TP502
TP503
TP504
CN104
TP403
TP404
TP402
TP401
C108
R551
TP143
C103
R103
C105
R708
R709
C703
R711
R706
C702
R704
TP205
C106
C701
TP701
R712
C704
Q704
CN101
CN105
R707
L401
L402
IC401
L701
L202
C114
R701
IC101
L201
L203
BG1
R501
C501
Q182
D501
D502
Q181
L550
L501
L502
M102
M101
HR901
L602
L601
L603
R105
TP203
TP215
100
6.3V
1k
10k
1k
0.1
100k
0.022
470k
2.2k
470k
680
UN5113
-TX
2SB798
-T1D
1
2.2
0.01
0.022
0.047
1SS355TE-1
10k
0.001
100k
0.0068
10k
10k
3.3k
4.7k
0.1
22k
33k
0.01
4.7
0.0047
0.068
1
0.01
0.1
4.7
0.1
0
0.1
4.7k
0.1
TLV2361CDBV
2.2k
100k
0.01
0.033
10k
47k
0.1
4.7
UN5113
-TX
UN5214-TX
FMW1-T-148
UN5214-TX
MC74ACT08D
TR2
100
6.3V
0.1
47k
0.1
10
47k
22
10V
2P
0.1
47k
0.01
4.7k
10
6.3V
4.7k
2.2k
0.1
10k
2.2k
4.7
47k
10
6.3V
0.1
100
0.047
2SA1576A-T
21P
7P
4.7k
BH6519FS
2200p
1k
CXA2523AR
0
470p
630V
630V
2SK2788VYTR
F1J6TP
F1J6TP
2SJ518ATZR
3.3M
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
D
T
R
F
C
K
R
F
X
L
R
F
S
P
R
D
S
P
F
D
E
D
C
F
I
A
B
F
E
D
C
B
A
J
I
S
R
D
R
S
F
D
R
J
FF
D
R
FR
D
R
T
R
D
R
T
FD
R
AA1
AA2
AA3
AA4
A
A
1
A
A
2
A
A
3
A
A
4
B
B
1
BB1
BB3
BB4
BB5
BB6
BB7
BB8
BB8
BB5
BB9
DD1
DD2
DD3
DD4
D
D
1
D
D
2
D
D
3
D
D
4
B
B
2
A
B
C
D
E
F
PD
TE
M
P
I
G
N
D
SWDT
SCLK
XLAT
V
C
C
TE
CSLED
SE
ADFM
ADIN
ADAGC
ADFG
AUX
FE
ABCD
BOTM
P
EAK
R
FA
G
C
R
F
R
F
O
M
O
R
FI
M
O
R
F
O
E
B
I
VCC
C
J
D
F
VC
T
E
M
P
R
TRK+
TRK-
FCS+
FCS-
A
PD
K
ILCC
MOD
VEE
LD-GND
APCREF
VREF
XSTBY
FOCNT
EQADJ
3TADJ
WBLADJ
AGCI
COMPO
COMPP
ADDC
OPO
OPN
APC
I
J
VC
VR
IOP
I+3V
GND
FE
TE
VC
RF
CAPA-
CAPA+
IN2R
IN2F
VM2
OUT2F
PGND2
OUT2R
VM12
OUT1R
PGND1
OUT1F
VM1
IN1F
IN1R
VDD
GND
VG
IN4R
IN4F
VM4
OUT4F
PGND4
OUT4R
OUT3R
PGND3
OUT3F
VM3
IN3F
IN3R
PSB
VM34
(1/2)
FLEXIBLE
BOARD
FOCUS/TRACKING
SPINDLE/SLED
MOTOR DRIVE
COMPARATOR
Q701-704
HF MODULE
SWITCH
RF AMP,
FOCUS/TRACKING
ERROR AMP
LASER ON
SWITCH
Q202,203
AUTOMATIC
POWER CONTROL
Q181,182
OVER WRITE
HEAD DRIVE
OVER WRITE
HEAD DRIVE
TEST PIN
(FOR ADJUSTMENT)
(SLED)
(SPINDLE)
OVER WRITE
HEAD
COIL DRIVE,
-1
-2
(Page 41)
Click on the first or last page to see other MDS-NT1 service manuals if exist.