Block Diagram -Audio Section (1/2) - Sony NW-MS7 Service Manual

4-2. BLOCK DIAGRAM — AUDIO SECTION (1/2) —
UNIVERSAL SERIAL BUS DEVICE CONTROL
USB D- D-
BATTERY 3
USB
CHARGER
USB D+ D+ TRANSCEIVER
SERIAL
(1/2) 4
INTERFACE
ENGINE
TR ON
USB
6
PERIPHERAL
VBUS
USB VCC
5
CIRCUIT
+3.3V
XIN CLOCK
14
CONTROL
X704
(OSCILLATOR/
12MHz XOUT
PLL)
13
A0-A16
25-18,8-1,48
A1-A17
17
18
A0-A17
65-62,59-54,52,50-44
BS A0-A17
11 MS BS
DIO
EJECT
MS DIO
12
MECHANISM INS
9 PA19 MS INS
BLOCK
SCLK
13 MS CLK
115
XTAL
113 EXTAL
X701
04
4MHz
TRST
8
RESET
46
IC704
D0-D15 D0-D15
16
DEVICE
CONTROL
UNIT A1-A6 A1-A6
CPU
6
REGISTER
END POINT
DACK
BUFFER
48
DREQ
(3k BYTE FIFO)
47
CS
45
INT
42
RD
43
WR
44
INVERTER
IC711
OUT
R/W 11 4
INVERTER
IC712
S-RAM
IC708
OUT
XLB 15 4
INVERTER
IC713
OUT
XUB 14 4
I/O1-I/O16 XCE1 XOE
29-36,38-45 26 28
D0-D15
16
16
D0-D15
108-105,102-96,94,92-89 5 10
D0-D15
SYSTEM CONTROL
IC701(1/3)
– 19 –
XWRL
2
XWRH
1
XCS
1
XSCK
2
XWRL RESET
2
6
XRD
1
DI INSTRUCTION
3
XWRH
2
XRD
1
14 15 156 4 159 157 71 1 70 73 69
EEPROM
IC705
INSTRUCTION
ADD
DECODE
BUFFER
EEPROM
CONTROL
/DECODER
&
CLOCK
GENERATION
REGISTER
– 20 –
NW-MS7
DATA
DO
REGISTER 4
1
2
3
8
1
4
(Page
16 21)
5
68
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