Sony NW-E50 Service Manual page 17

• IC BLOCK DIAGRAMS
IC301 NJM2776RB2 (TE2) (MAIN board)
V + 2
1 O
OUT1
2
IN1 3
STANDBY 4
BIAS
REG
V + 1
5
IC700 RS5C348A-E2-FB (MAIN board)
32 kHz
32KOUT 1
OUTPUT
CONTROL
SCLK
2
SO
3
I/O
CONTROL
SI 4
VSS 5
IC801 SM8145AB-G-EL (DISPLAY board)
20 19 18 17 16
HIGH VOLTAGE SWITCHING
CIRCUIT
DIVIDER
OSCILLATOR
1 2 3 4 5
GND
10
9 OUT2
8 IN2
STANDBY
7
VREF
6
ALARM W REGISTER
COMPARATOR
(WEEK, MIN, HOUR)
W
ALARM D REGISTER
COMPARATOR
(MIN, HOUR)
D
TIMER COUNTER
SEC, MIN, HOUR, WEEK,
DAY, MONTH, YEAR
ADDRESS ADDRESS
DECODER
REGISTER
SHIFT
INTERRUPT
REGISTER CONTROL
VOLTAGE
DETECT
15 14 13 12 11
DIVIDER
OSCILLATOR
6 7 8 9 10
VDD
DIVIDER
DIV OSC
CORRECTION
OSC
DETECT
NW-E50/E70
VDD
10
9 OSCIN
8 OSCOUT
7 CE
6 INTR
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