Sony NW-MS7 Service Manual ▷ View online
– 23 –
– 24 –
4-4. BLOCK DIAGRAM — POWER SUPPLY SECTION —
NW-MS7
04
35
5
2
1
4
5
1
5
2
3
34
133
138
7
CHARGE LED
25
RXD0 LCD SDA
24
TXD0 LCD SDA
PD24 LCD XRST
PI4 HIDC
PD22 LCD CLK
XCS4 LCD XCS
78
2
76
38
PC21 S PWR
TXD2 ST DI
RXD2
155
PE22 LCD BL
169
173
PI0 AN BATTV
150
PE18 U PWR
120
NMI
AN1 AN KEY
PI7 STOP
PH1 JOG
PH0 HOLD
XIRQ3 MS EJ
PC24 PCON
87
PD17 WKUP MSK
PC25 AU PWR
121
XRES
171
PI2 BATT
158
PF2 BATTSW OPEN
170
AN3 AN DCV
SYSTEM CONTROL
IC701 (3/3)
BATTERY
CHARGER
(2/2)
BACK LIGHT
ON/OFF SWITCH
Q601
LIQUID
CRYSTAL
DISPLAY
PANEL
LCD701
3
2
+3V REGULATOR
IC710
VOUT
VIN
1
2
OUT
VDD
1
2
OUT
VDD
3
2
RESET
IC714
VOUT
VIN
IC702 POWER
SWITCH
Q701,711
MS-POWER
SWITCH
Q703,713
42
PC18 MS PWR
IC703 POWER
SWITCH
Q705,715
AU-POWER
SWITCH
Q305
PCON
SWITCH
Q511
SWITCHING
Q505
SWITCHING
Q504
REFERENCE
VOLTAGE
SUPPLY
(SOFT START)
PCON
SWITCH
Q512
SOFT
START
CIRCUIT
PWM
CONTROL
CIRCUIT
WAKE UP
SWITCH
Q802
WAKE UP MASK SWITCH
Q803
KEY
SWITCH
Q801
WAKE UP
SWITCH
Q804
EJECT
DETECTOR
Q709
S805
RIPPLE
FILTER
Q302,303
SWITCHING
Q506-508
VCC
+3.3V
3.2V VOLTAGE DETECTOR
IC507
3.5V VOLTAGE DETECTOR
IC508
2
1
VDD
OUT
5.6V VOLTAGE DETECTOR
IC504
D502
D507
D506
D505
3
2
5
4
5
7
6
8
3
VOLTAGE
REFERENCE
CURRENT
LIMIT
CHARGE
CONTROL
Q501
CHARGE
SWITCH
Q502
BATTERY
OPEN
SWITCH
Q503
HIDC
SWITCH
Q510
DC IN/BATTERY
DETECT SWITCH
Q509
OUTPUT
CONTROL
CONSTANT
CURRENT
CONTROL
CONTROL
CONSTANT
VOLTAGE
CONTROL
LOW
VOLTAGE
DETECTION
LITHIUM-ION BATTERY CHARGE CONTROL
IC503
VOLTAGE
REFERENCE
OUTPUT
CONTROL
USB
POWER
SWITCH
Q702,708
RECHARGEABLE
BATTERY
(LITHIUM-ION)
DC IN 3.7V
+3.3V REGULATOR
IC502
S702
(RESET)
x
DISPLAY/
MENU
S803,804
VOLUME
S801,802
S701
(EJECT)
1
T
4
172
166
174
175
151
C
+3.3V REGULATOR
IC707
CURRENT
LIMIT
3
HPVCC
+3V
+3.3V
+3.3V
+3.3V
AVCC
+3V
PWM/PFM CONTROL,SWITCHING REGULATOR
IC506
EXT
ON/OFF
VOUT
S806
HOLD
D801
D802
D807
D703
D702
D701
D509
D508
D704
D503
D512
VIN
CE
VOUT
S807
(FUNCTION)
JOG PLAY/PAUSE
JOG +
JOG -
VOUT
EXT
VIN
PWM CONTROL,
PWM/PFM SWITCH
CONTROL CIRCUIT
ON/XOFF
CE
VOUT
+3.3V
D504
CHARGE
CEL
CS
SW2
SW1
VCC
LCD BACK LIGHT UNIT
DC IN
READY
RST
CS
VCC
VCI
SCL
SDA
DATA O2S
DATA S2O
USB VCC
L502
L501
PWM CONTROL,SWITCHING REGULATOR
IC505
EXT
USB VCC
+3.3V
1
A
B
C
D
E
F
2
3
4
5
6
7
8
9
10
11
12
13
R743
JC768
R723
R732
R504
R513
Q504
R511
Q508
R519
R518
R503
R718
R754
JC707
R724
R372
R736
R101
R109
R553
R708
R551
R757
R727
Q705
Q715
R554
Q302
Q802
Q601
IC710
Q803
D807
Q804
Q303
Q305
R818
R816
R809
R808
R819
R811
R821
R820
R826
R406
R815
R814
R817
R404
R810
R813
R812
R812
R552
R201 R209
JC757
JC769
JC758
R705 R703
R301
R747
R719
R720
R748
JC702
R713
R749
R739
R715
R742
R721
R744
R725
R737
R737
R704
R722
R734
R999
JC808
JC806
R733
R741
R735
JC703
JC711
C779
C720
C780,
C749
C724
C751
C711
C753
C370
C308
FB501
C723
C767
C903
C504
D511
D510
C771
C765
C773
C752
C750
C745
C303
C209
C109
11
15
IC301
20
10
1
5
C551
C728
C802
C801
C800
C406
C409
Q507
Q506
C408
C807
Q801
C810
C803
C407
C405
C410
C402
C404
C401
C806
C808
C403
C700
C716
C717
C772
C774
CN501
C712
C770
C746
C721
C732
C729
C757
IC702
IC706
IC703
C761
C102
C503
C726
L707
C550
C302
D802
D801
C104
C304
L301
C204
C202
X704
X702
1
5
10
12
36
37
40
45
48
35
30
25
IC704
IC701
13
15
15
20
24
CN706
CN707
1
4
8
5
3
1
2
4
5
10
1
1
4
3
2
5
CN701
IC505
IC504
1
5
2
6
10
9
20
16
15
19
24
23
1
RECHARGEABLE
BATTERY
(LITHIUM-ION)
DC IN 3.7V
5
7
1
4
IC503
8
5
1
2
5
6
9
10
15
16
19
20
D503
C
E
B
D
S
B E
C
C
C
B
E
B
E
B
G
S
D
G
C
B
E
C
C
C
B
E
B
E
E
B
C
B
E
1
2
2
5
3
4
B
E
C
C
E
B
B
E
C
S
G
D
EJECT
MECHANISM
BLOCK
1-675-321- 11
HP
BOARD
CN705
2
CN
BOARD
CN901
1
04
MAIN BOARD (COMPONENT SIDE)
NW-MS7
– 25 –
– 26 –
4-5. PRINTED WIRING BOARD — MAIN BOARD —
(Page 37)
Ref. No.
Location
D503
D-7
D510
D-10
D511
E-10
D801
D-13
D802
E-12
D807
E-13
IC301
B-8
IC503
E-7
IC504
E-7
IC505
E-9
IC701
E-4
IC702
C-4
IC703
C-6
IC704
E-3
IC706
B-4
• Semiconductor Location
Ref. No.
Location
IC710
C-12
Q302
B-11
Q303
B-11
Q305
B-11
Q504
D-9
Q506
D-10
Q507
D-11
Q508
E-9
Q601
C-12
Q705
B-12
Q715
B-12
Q801
D-13
Q802
C-13
Q803
C-13
Q804
E-12
Comon note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• 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.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 5.5 V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground in
playback mode.
∗
: 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.
F
: ANALOG
J
: DIGITAL
*
IC701, 702 and 703 on main board are not
replaceable.
• The voltages and Waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
from that of conventional IC.
from that of conventional IC.
(Page 37)
surface
•
Note for replacing the parts of the main board:
IC702 and IC705 should be replaced at the same time.
IC702 and IC705 should be replaced at the same time.
•
Main board is six-layer printed board.
However, the patterns of layers 2 to 5 have not been
included in this diagrams.
However, the patterns of layers 2 to 5 have not been
included in this diagrams.
*
IC701, 702 and 703 on main board are not
replaceable.
•
Lead Layouts
Comon note on Printed Wiring Boards:
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Lead layout of conventional IC CSP (chip size package)
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.
1
A
B
C
D
E
F
2
3
4
5
6
7
8
9
10
11
12
13
14
x
C741
S802
S801
CN702
IC705
4
1
S
G
D
B
E
C
3
4
2
1
25
30
35
40
48
45
24
IC708
20
15
10
1
5
1
IC506
3
2
5
4
E
B
C
5
1
S804
MENU
S701
(EJECT)
S805
S805
S803
S804
S806
HOLD
S802
S801
S803
DISPLAY
10
15
20
22
5
8
R517 R520
R523
R525
R803
R502
D501
D506
Q503
D505
IC502
D703
D704
R740
R709
R758
R512
R802
R807
R801
R806
R804
Q505
R805
R516
R505
Q501
R501
D512
X701
R510
C512
D507
JC790
JC759 C718
JC754
JC721
JC720
JC791
R902
R509
R506
C742
C902
D504
R526
R508
C508
C505
C804
R514
C702
R515
JC805
R729
R521
Q511
Q512
IC508
L703
C511
D509
C703
C502
Q502
C507
L502
C510
C501
C706
C747
C731
C743
R746
JC809
R550
R707
C758
C901
C707
R701
R700
R712
Q711
Q701
R756
R717
R731
R710
R706
D702
D701
Q708
C762
R714
R716
JC742
R726
R771
IC707
IC714
R772
R745
C756
C705
X706
C704
C737
IC712
IC711
L708
C730
L702
C714
C778
IC713
C736
C710
C735
FB701
C715
C759
C754
C755
C766
D508
IC507
D502
Q510
FB502
C701
C509
L501
TP501
TP502
C513
C506
C764
L701
C713
C748
L705
Q509
Q709
S
G
G
S
Q713
S
D
G
Q703
E
C
OFF ON
B
C
B
E
D
4
5
3
2
1
1
2
4
3
1
2 3
1
2 3
6
5 4
6
5 4
G
S
D
D
Q702
LCD701
LIQUID
CRYSTAL
DISPLAY
PANEL
LCD
BACK
LIGHT
UNIT
B
1
1
2
3
4
5
4
5
1
1
2
3
2
3
5
4
2
3
2
3
5
4
G
S
D
E
S
D
G
E
C
B
C
MAIN BOARD (CONDUCTOR SIDE)
1-675-321- 11
VOLUME
04
1
2
4
3
NW-MS7
– 27 –
– 28 –
Ref. No.
Location
D501
C-10
D502
C-7
D504
E-6
D505
D-7
D506
D-7
D507
C-8
D508
C-6
D509
C-9
D512
D-7
D701
D-2
D702
C-2
D703
D-2
D704
E-3
IC502
D-7
IC506
D-11
IC507
C-7
IC508
C-11
IC705
B-12
IC707
D-2
IC708
D-5
• Semiconductor Location
Ref. No.
Location
IC711
C-3
IC712
C-3
IC713
C-3
IC714
E-2
Q501
E-7
Q502
E-7
Q503
D-7
Q505
E-10
Q509
B-9
Q510
D-7
Q511
C-10
Q512
C-9
Q701
B-2
Q702
D-2
Q703
B-6
Q708
E-2
Q709
B-8
Q711
C-2
Q713
B-7
• Refer to page 25 for Comon note on Printed Wiring Board.
CSP (Chip Size Package)
CSP (Chip Size Package)
NW-MS7
– 29 –
4-6. SCHEMATIC DIAGRAM — MAIN BOARD (1/4) — • Refer to page 41 for IC Block Diagrams and page 36 for Waveforms. • Refer to page 26 for Comon note on Schematic Diagram.
– 30 –
(Page
39)
(Page 33)
(Page 31)
(Page 35)
•
Note for replacing the parts of the main board:
IC702 and IC705 should be replaced at the same time.
IC702 and IC705 should be replaced at the same time.
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