Sony NW-E407 - Network Walkman Player Manuel d'entretien - Page 22

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Sony NW-E407 - Network Walkman Player Manuel d'entretien
NW-E403/E405/E407
• IC Block Diagrams
– MAIN Board –
IC301 TB2173FTG
44
43
PORT
BEEP OUTA 1
+
OUTA
2
–
OUTC 3
PW GND 4
+
OUTB 5
–
BEEP OUTB 6
VCC2 7
BST TC 8
AGC DET 9
AGC IN 10
BST OUT 11
12
13
14
IC401 RV5C348A-E2
32K OUT
1
32kHz
OUTPUT
CONTROL
SCLK
2
DIVIDER
DIV
CORRECTION
SO
3
SI
4
VSS
5
OSC
INTERRUPT
CONTROL
OSC
DETECT
NW-E403/E405/E407
42
41
40
39
38
37
36
35
34
VOLUME/SWITCH
MODE
33
C-SW
/PORT CONTORL
SWITCH
32
GND
VOLUME
31
IN2A
30
VOL OUTA
–
+
29
PRE INA
+
28
PRE INB
–
27
VOL OUTB
VOLUME
26
IN2B
ATTENUATOR
25
IN1A
ATTENUATOR
24
IN1B
23
PRE GND
BIAS
BEEP
15
16
17
18
19
20
21
22
ALARM_W REGISTER
COMPARATOR_W
(WEEK, MIN, HOUD)
ALARM_D REGISTER
VOLTAGE
COMPARATOR_D
(MIN, HOUR)
DETECT
TIME COUNTER
(SEC, MIN, HOUR, WEEK, DAY, MONTH, YEAR)
ADDRESS
ADDRESS
DECODER
DECODER
I/O
CONTROL
SHIFT
REGISTER
IC503 MM3032JULE
4
3
10k
Vref
+
–
Current Limit
1
2
10 VDD
9 OSCIN
IC507 PST3629UL
8 OSCOUT
7 CE
VDD 2
6 /NTR
GND 1
22
22
IC505, IC506 TPS62200DBVR
5
Driver
Shoot-Through
Logic
+
–
+
–
Control Logic
S
R
1MHz
Soft Start
Oscillator
Comparator
V(Comp)
Sawtooth
Generator
V
I
Undervoltage
Lockout
Blas Supply
1
2
IC508 PST3624UL
VDD
2
3
CD
R
D
4
OUT
GND 1
4
+
–
R1
–
VREF=0.5V
Conpensation
–
Gm
3
3
CD
4
OUT