Sony NW-MS7 Service Manual ▷ View online
– 39 –
– 40 –
NW-MS7
4-11. SCHEMATIC DIAGRAMS — CN BOARD, HP BOARD — • Refer to page 44 for IC Block Diagrams.
(Page 29)
(Page 36)
Note: When repair or replacing the
CN board, replace it with the
CN board, complete.
CN board, complete.
1
5
2
3
4
VSS
VIN
CE
V OUT
NC
CURRENT
LIMIT
OUTPUT
CONTROL
VOLTAGE
REFERENCE
3
DI
XCS
XSCK
4
DO
1
2
7
6
5
8
VREF
ADD
BUFFERS
DATA
REGISTER
16
16
R/W AMPS
&
AUTO ERASE
EEPROM
16384BIT
1024 X 16
GND
RESET
VCC
RDY
INSTRUCTION
REGISTER
DECODER
VPP SW
INSTRUCTION
DECODE
CONTROL
&
CLOCK
GENERATION
VPP
GENERATOR
– 41 –
– 42 –
IC703 CXD1858GA
IC711 – 713
TC7SH08FU-TE85R
TC7SH08FU-TE85R
IC704 M66290FP
4-12. IC BLOCK DIAGRAMS
IC710 S-81230SGUP-DQB-T1
IC706 S-3511AE-FS
IC503 MM1438BWLE
IC502, 707 XC62GR3312MR
IC714 PST3427UL
IC705 AK6417AM-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
100
MICRO-COMPUTER
INTERFACE
DSP CORE
CLOCK GENERATOR
&
RESET CIRCUIT
ATRAC DATA
INTERFACE
AUDIO
INTERFACE
DATA RAM & ROM
PROGRAM ROM
XIRQ1
VSS
VDD
TEST
DB0
DB1
DB2
DB3
DB4
XIRQ0
XSLEEP
XSTOP
QO
QMON
EXTAL
EXTAL
XTAL
VDD
VSS
XRST
SCLK
VDD
VSS
SWDT
XLAT
ACLK
ACLK
ACDI
VSS
VDD
XABS
C2PO
ACDO
XARQ
ACDI
ACLK
XABS
C2PO
ACDO
XARQ
DODT
AIDT
DIDT
BCK
WDCK
LRCK
EXEC
STRO
PSSL
ATT
VDD
VSS
INSEL
MUTE
REC
EXMEM
ATRAC3
LEVEL3
ACDI
XABS
C2PO
ACDO
XARQ
DODT
AIDT
DIDT
BCK
WDCK
LRCK
EXEC
STRO
PSSL
ATT
INSEL
MUTE
REC
ATRAC3
LEVEL3
MUTE
ATT
REC
ATRAC3
LEVEL3
STRO
EXEC
AIDT
DODT
DIDT
BCK
WDCK
LRCK
PSSL
INSEL
ADR15
ADR14
ADR13
ADR12
ADR11
ADR10
ADR9
VSS
VSS
VDD
VDD
ADR8
ADR7
ADR6
ADR5
ADR4
ADR3
ADR2
ADR1
ADR0
XDRD
XDWR
XIORD
VSS
VDD
XPRD
XPWR
DB23
DB22
DB21
DB20
DB19
DB18
DB17
DB16
DB15
DB14
DB13
DB12
VSS
VSS
VDD
VDD
DB11
DB10
DB9
DB8
DB7
DB6
DB5
IN B
IN A
GND
VCC
OUT Y
1
2
3
5
4
1
2
3
4
5
6
7
8
9
10
11
12
13
36
35
34
33
32
31
30
29
28
27
26
25
14 15 16
17 18 19 20 21 22
23 24
USB
TRANSCEIVER
SERIAL
INTERFACE
ENGINE
USB
PERIPHERAL
CIRCUIT
CLOCK
CONTROL
(OSCILLATOR/
PLL)
TCK
TRST
TEST1
TR_ON
VBUS
GND
VCC
D+
TMS
TDI
TDO
GND
XIN
XOUT
VCC
A1
A2
A3
A4
A5
A6
D0
D1
D0
D1
48 47 46 45 44 43 42 41
40 39 38 37
RESET
DREQ
DACK
CS
WR
RD
INT
TEST2
D15
D14
D13
D12
DREQ
DACK
CS
WR
RD
INT
D15
D14
D13
D12
D
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
VCC
GND
DACK
DREQ
CS
WR
RD
INT
DEVICE
CONTROL
UNIT
END POINT
BUFFER
(3k BYTE FIFO)
CPU
REGISTER
1
GND
2
VIN
3
VOUT
REFERENCE
VOLTAGE
4
VSS
3
NC
1 OUT
2 VIN
VREF
2
3
4
1
8
7
6
5
OSCILLATION
CIRCUIT
SHIFT
REGISTER
SERIAL
INTERFACE
FREQUENCY
DIVISION,
TIMING
PRODUCTION
INT
REGISTER
STATUS
REGISTER
COMPARATOR
CLOCK
PRODUCTION
CIRCUIT
CONSTANT
VOLTAGE
CIRCUIT
POWER
SUPPLY
VOLTAGE
DETECTION
CIRCUIT
SEC.
MIN.
HOUR
WEEK
DAY
MONTH
YEAR
XINT
XIN
XOUT
VSS
CS
XSCK
SIO
VDD
1
8
2
3
4
7
6
5
CS
CEL
EXT
VCC
SW1
SW2
LV
GND
LOW
VOLTAGE
DETECTION
CONSTANT
CURRENT
CONTROL
CONTROL
CONSTANT
VOLTAGE
CONTROL
– 43 –
4
VSS
3
NC
1 OUT
2 VDD
VREF
1
2
3
5
4
VOUT
VSS
ON/XOFF
VIN
EXT
OSCILLATION
CIRCUIT
PWM CONTROL,
PWM/PFM SWITCH
CONTROL CIRCUIT
REFERENCE VOLTAGE
SUPPLY (SOFT START)
5
EXT
4
VSS
1 ON/XOFF
2 VOUT
3 NC
SOFT
START
CIRCUIT
PWM
CONTROL
CIRCUIT
VREF
4
VSS
3
NC
1 OUT
2 VDD
VREF
4
VSS
3
NC
1 OUT
2 VDD
VREF
1
20
19
CLOCK/OSC MANAGER
8-TIMES OVER • SAMPLING
DIGITAL FILTER
(MULTI-FUNCTION)
POWER
SUPPLY
CR LPF
+AMP
CR LPF
+AMP
RESET
SERIAL
INPUT
INTERFACE
MULTI-LEVEL
∆
•
∑
MODULATOR
MULTI-LEVEL
∆
•
∑
MODULATOR
MODE
CONTROL
XTI
XTO
CLKO
CLKO
18 ML/MUTE
17 MC/DM1
16 MD/DM0
15 RSTB
14 MODE
13 D/C_L
12 VOUTL
11 VCC
2
DGND
3
VDD
4
LRCIN
5
DIN
6
BCKIN
7
ZERO
8
D/C_R
9
VOUTR
10
AGND
BPZ-CONTROL
OPEN DRAIN
DAC
DAC
IC504 S-80856ALNP-EEL-T2
IC505 S-8520F33MC-BNS-T2
IC506 S-8328B33MC-EWN-T2
IC507 PST3432UL
IC508 PST3346UL
IC301 PCM1717T/2K
– 44 –
IC302 TA2131FL (EL)
V REF
MT
SW
BST
SW
BEEP
19
20
21
22
23
24
18
17
16
15
14
13
PW
SW
SW
12
11
10
8
7
BST1
9
BST2
6
5
4
3
2
1
BST
AGC
PW
B
PW
A
ADD
MTTC
VCC
INB
INA
BEEPOUTB
BEEPOUTA
+B
OUTA
PWRGND
OUTB
DET
AGC_IN
BSTOUT
BSTNF2
LPF2
BSTNF1
LPF1
VREF
VREF IN
GND
BEEP IN
BSTSW
MTSW
PWSW
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