Read Sony NW-E99 Service Manual online
17
NW-E99
•
IC Block Diagrams
IC301
NJM2776RB2 (TE2)
1
2
3
4
5
10
9
6
7
V+2
O
OUT1
IN1
STANDBY
V+1
VREF
OUT2
GND
STANDBY
8
IN2
BIAS
REG
IC700
RS5C348A-E2-FB
VDD
VDD
OSCIN
OSCOUT
CE
INTR
32KOUT
SCLK
SO
SI
VSS
32 kHz
OUTPUT
CONTROL
COMPARATOR
W
COMPARATOR
D
ADDRESS
REGISTER
I/O
CONTROL
ADDRESS
DECODER
DECODER
SHIFT
REGISTER
INTERRUPT
CONTROL
OSC
DETECT
VOLTAGE
DETECT
ALARM W REGISTER
(WEEK, MIN, HOUR)
ALARM D REGISTER
(MIN, HOUR)
DIV
OSC
DIVIDER
CORRECTION
9
10
8
7
6
2
3
4
5
1
TIMER COUNTER
SEC, MIN, HOUR, WEEK,
DAY, MONTH, YEAR
– MAIN Board –
IC801
SM8145AB-G-EL
– DISPLAY Board –
LDR
NC
NC
OCL1
OCL2
NC
OCL3
OCE
ENA2
ENA1
NC
VDD
NC
OUT2
OUT1
NC
NC
CHV
OUTCOM
VSS
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
OSCILLATOR
OSCILLATOR
DIVIDER
DIVIDER
CONTROL
LOGIC
HIGH VOLTAGE SWITCHING
CIRCUIT
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