Read Sony NW-E205 / NW-E207 Service Manual online
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NW-E205/E207
NW-E205/E207
•
IC Block Diagrams
IC301 TB2173FTG
– MAIN Board –
IC401 RV5C348A-E2
34
MUTE SW
C-SW
OUTA
MODE
SWITCH
VOLUME
VOLUME/SWITCH
/PORT CONTORL
2
35
PW SW
36
RESET
37
CK
38
DATA
39
STB
43
P1
44
P2
40
VDD
41
PRE NFA
33
IN2A
31
PRE INA
29
PRE INB
28
VOL OUTA
30
VOLUME
IN2B
26
IN1A
25
VOL OUTB
27
GND
32
PRE GND
MODE TC
23
+
–
+
–
42
PRE NFB
BEEP OUTA 1
BEEP OUTB 6
VCC2 7
BST TC 8
AGC DET 9
AGC IN 10
OUTC 3
PW GND 4
OUTB 5
ATTENUATOR
IN1B
24
ATTENUATOR
22
MUTE TC
21
BEEP
20
VCC1
19
BIAS IN
18
BEEP
OUT ADJ
17
RF
16
LPF1
14
LPF2
12
BST NF
13
BIAS OUT
15
BIAS
+
–
+
–
+
–
BST AGC
BST OUT 11
PORT
32kHz
OUTPUT
CONTROL
OSC
DETECT
DIVIDER
CORRECTION
TIME COUNTER
(SEC, MIN, HOUR, WEEK, DAY, MONTH, YEAR)
COMPARATOR_D
INTERRUPT
CONTROL
SHIFT
REGISTER
COMPARATOR_W
ALARM_W REGISTER
(WEEK, MIN, HOUD)
ALARM_D REGISTER
(MIN, HOUR)
OSC
DIV
ADDRESS
DECODER
DECODER
ADDRESS
DECODER
DECODER
VOLTAGE
DETECT
I/O
CONTROL
1
32K OUT
2
SCLK
3
SO
4
SI
5
VSS
6 /NTR
7 CE
8 OSCOUT
9 OSCIN
10 VDD
IC502 MM3077KYRE
IC507 PST3629RL
IC503 MM3032JRRE
Transmitter
VD1
Over Charge
Counter
Logic Circuit
Logic Circuit
Delay
Level Shift
Short Curcuit
Detect
Detect
VD2
VD3
Over Discharge
Discharge Current Surge
VSS
V DD
DS
D OUT
C OUT
V–
3
2
4
5
6
1
VOUT
2
CD
3
+
–
VREF
VDD
R
D
4
GND
1
1
GND
2
CE
4
VDD
10k
3 VOUT
Vref
+
–
Current Limit
IC508 PST3624RL
VOUT
2
CD
3
+
–
VREF
VDD
R
D
4
GND
1
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