Sony Walkman NW-E8P, Руководство по обслуживанию

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16 16
NW-E8P
SERIAL
INPUT
INTERFACE
CLOCK DIVIDER
15 VCML
14 AOUTL
13
11
LPF
12
10 VDD
VREF
VCMR
AOUTR
9 VSS
CKS 16
2
3
4
6
5
7
8
XPD
BLCK
DEM
DIF1
DIF0
SDATA
LRCK
MCLK 1
LPF
∆ Σ
MODULATOR
∆ Σ
MODULATOR
8X
INTERPOLATOR
8X
INTERPOLATOR
DE-EMPHASIS
CONTROL
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
XTRST
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
XRST DREQ DACK XCS XWR XRD XINT 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 XOE
2
1Q
3 1D
4 2D
5 2Q
6
3Q
7 3D
8 4D
9 4Q
10
GND
20 VCC
19 8Q
18 8D
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 CLK
1D
C1
C2
2D
3D
C3
C4
4D
8D
C8
C7
7D
6D
C6
C5
5D
V REF
MT
SW BST
SW
BEEP
19
20
21
22
23
24
18 17 16 15 14 13
PW
SW
12
11
10
8
7
BST1
9
BST2
6 5 4 3 2 1
BST
AGC
PW
B
PW
A
ADD
TC MT
VCC1
INB
INA
BEEP
OUTB
BEEP
OUTA
VCC2
OUTA
PWR
GND
OUTB
DET
AGC IN
BST OUT
BST NF2
LPF2
BST NF1
LPF1
VREF
VREF IN GND BEEP IN BST SW MUTE PWSW
R / B
HIGH VOLTAGE
GENERATOR
ADDRESS REGISTER
COLUMN BUFFER
COLUMN DECORDER
DATA REGISTER
SENSE AMPLIFIER
MEMORY CELL
ARRAY
COMMAND REGISTER
STATUS REGISTER
LOW ADDRESS
BUFFER
LOW ADDRESS
DECORDER
I/O
CONTROL
ACTION
LOGIC
CONTROL
CONTROL
CIRCUIT
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
18
21
22
23
24 25
26
27
28
29
30 19
20
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
NC
NC
NC
NC
NC
XES
R/XB
XRE
XCE
NC
NC
VCC
VSS
NC
NC
CLE
ALE
XWE
XWP
XEX-RST
NC
NC
NC
NC
I/O15
I/O14
I/O13
I/O12
I/O11
I/O10
I/O9
I/O8
NC
NC
VCC
VCC
VSS
VSS
NC
NC
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
+
–
VREF WITH
SOFT START,
CE
PHASE
COMPENSTATION
PWM
COMPARATOR ERROR AMP.
PWW/PFM
CONTROLER
RAMP WAVE
GENERATOR,
OSC
BUFFER,
DRIVER
5
4
3
2
1 VOUT
VDD
CE
GND
EXT
+
–
• IC Block Diagrams
IC751, 752 TC58257FT
— MAIN SECTION —
IC853 SN74LVC374APWR IC810 M66290AFP
IC301 AK4352VT-E2
IC302 TA2131FL (EL)
IC902 XC6368A201MR
— POWER SECTION —