Sony NW-MS70D Service Manual ▷ View online
17
17
NW-MS70D
5-9. SCHEMATIC DIAGRAM – POWER SECTION –
z
See page 8 for Notes.
CN502
CN501
C503
C504
C507
C511
C512
C514
C524
R504
R505
R506
R507
R508
R509
R510
R511
R512
R537
D502
L502
R516
R517
R518
R519
R520
R535
R536
R513
C513
R515
C508
D501
L501
100
µH
100
µH
Q501
Q502
Q504
Q503
20P
2P
1000p
0.1
1
47
10V
47
10V
47p
10
6.3V
47k
470k
100k
1M
1M
470k
220k
330k
2.2M
2.2M
RSX101M-30
100k
100k
47k
220k
470k
2.2M
100k
220k
33p
470k
1
RSX101M-30
XP4601-TXE
BUFFER
3LN01S-TL
POWER
SWITCH
XP151A12A2MR
SWITCHING
XP151A13A0MR
SWITCHING REG.
1
5
10
15
20
VCORE
REG CE
VDD CORE
VIO
BATT SENS
BATT+
(Page 11)
BATT+
BATT+
VIO
VDD CORE
XPWM
ULOW BATT
NC
GND
BATT-
BATT-
BATT-
GND
GND
GND
VDD
VSS
CE
CE
VOUT
ECO
CE
VDD
FB
VSS
EXT
CE
VDD
FB
VSS
EXT
VOUT
VSS
VDD
NC
IC501
S-80808CNBB-B9M
IC502
XC9105D091MR
XC9105D091MR
IC503
IC504
R1160N121B-TR-F
BATTERY
(NI-MH)
RECHARGEABLE
DETECT
BATTERY LEVEL
SWITCHING REG.
SWITCHING REG.
+12V REG.
Ver 1.6
18
18
NW-MS70D
5-10. PRINTED WIRING BOARDS – POWER SECTION –
: Uses unleaded solder.
C524
C507
TP504
R513
R505
R504
R519
R518
R535
R520
C513
R515
R516
R537
R512
R506
R517
R536
R510
R507
C504
C514
C503
C509
IC502
IC503
IC504
CN502
IC501
D502
D501
Q501
Q503
Q504
C511
C512
L502
CN501
1
2
L501
R511
R508
R509
C508
Q502
(SIDE A)
(SIDE B)
POWER BOARD
POWER BOARD
11
(11)
1-686-830-
11
(11)
1-686-830-
1
1
1
1
1
19
20
2
2
3
3
3
3
4
S
E
4
4
4
5
5
5
MAIN
BOARD
(Page 12)
B
RECHARGEABLE
BATTERY
NH–MH
2
3
A
1
B
C
4
D501
A-2
D502
A-3
IC501
B-2
IC502
A-2
IC503
A-3
IC504
A-3
Q501
A-2
Q502
C-2
Q503
A-2
Q504
A-3
z
Semiconductor
Location
Ref. No.
Location
z
See page 8 for Notes.
19
NW-MS70D
• IC BLOCK DIAGRAM
IC301
NJM2776RB2 (TE2)
1
2
3
4
5
10
9
6
7
V+2
O
OUT1
IN1
STANDBY
V+1
VREF
OUT2
GND
STANDBY
8
IN2
BIAS
REG
IC731
RS5C348A-E2
VDD
VDD
OSCIN
OSCOUT
CE
INTR
32KOUT
SCLK
SO
SI
VSS
32 kHz
OUTPUT
CONTROL
COMPARATOR
W
COMPARATOR
D
ADDRESS
REGISTER
I/O
CONTROL
ADDRESS
DECODER
DECODER
SHIFT
REGISTER
INTERRUPT
CONTROL
OSC
DETECT
VOLTAGE
DETECT
ALARM W REGISTER
(WEEK, MIN, HOUR)
ALARM D REGISTER
(MIN, HOUR)
DIV
OSC
DIVIDER
CORRECTION
9
10
8
7
6
2
3
4
5
1
TIMER COUNTER
SEC, MIN, HOUR, WEEK,
DAY, MONTH, YEAR
20
NW-MS70D
SECTION 6
EXPLODED VIEWS
NOTE :
• -XX, -X mean standardized parts, so they may
have some difference from the original one.
• Items marked “ * ”are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
6-1. CASE SECTION
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and packing
materials are given in the last of this parts list.
23
24
25
22
22
15
14
13 29
27
28
12
11
10
30
9
8
7
7
6
5
4
3
1
2
18
26
21
20
19
16
17
1
3-248-470-01 COVER, PLUG
2
8-953-218-94 RECEIVER MDR-E838SP
3
3-248-478-01 SLEEP
4
3-247-207-01 COVER (VOL)
5
3-247-204-01 KNOB (VOL)
6
3-247-198-01 CASE (U)
7
3-247-199-01 SHEET (CASE), ADHESIVE
8
3-247-197-01 CHASSIS (U)
9
X-3383-351-1 PLAY UNIT
10
3-247-202-01 SHEET (WINDOW), ADHESIVE
11
3-247-200-01 WINDOW
12
3-247-203-01 LCD HOLDER
13
1-805-082-11 DISPLAY PANEL, LIQUID CRYSTAL
*
14
A-3347-278-A LCD PC BOARD ASSY
15
3-247-195-01 HOLD BUMPER
16
3-247-206-01 ARM (VOL)
17
3-247-205-01 SPRING (VOL), TORSION COIL
18
1-824-813-11 CABLE, FLEXIBLE FLAT (20 CORE)
19
A-3229-820-A BUTTON (MENU) ASSY
20
3-247-184-01 PROTECTOR
21
3-247-187-01 BUTTON (SOUND)
22
3-225-996-11 SCREW (M1.4) (EG), PRECISION.PAN
23
3-245-813-01 CASE (R)
24
3-247-192-01 SHEET (MS), ADHESIVE
25
A-3229-821-A BUTTON (MS) ASSY
26
3-252-980-01 SHEET (PMS), ADHESIVE
27
1-805-081-11 ELEMENT, EL
28
3-252-982-01 SHEET (EL), ADHESIVE
29
3-252-983-01 CUSHION (EL)
30
3-247-211-01 SHAFT (PLAY)
Ver 1.5
• Abbreviation
CND
: Canadian model
E33
: AC220-230V area model
FR
: French model
HK
: Hong Kong model
JE
: Tourist model
KR
: Korean model
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