Sony MZ-R55 Service Manual page 76

IC805 RS5C348A
32KHz
32K OUT
1
OUTPUT
CONTROL
SCLK 2
I/O
CONTROL
SO
3
SI
4
VSS 5
IC902, 903 MB3800-M03
-IN 1
REFERENCE
VOLTAGE
ERROR
1.25V
2 AMP
SCP
_
+
36K
0.5V
VCC 3
500
4
BR/CTL
ALARM-W REGISTER
COMPARATOR-W
(WEEK,MIN,HOUR)
ALARM-D REGISTER
COMPARATOR-D
(MIN,HOUR)
TIME COUNTER
(SEC,MIN,HOUR,WEEK,DAY,MONTH,YEAR)
ADDRESS
ADDRESS
DECORDER
REGISTER
INTERRUPT CONTROL
SHIFT REGISTER
SAW-WAVE
GENERATOR
0.1V
± OUTPUT
CONTROL
CIRCUIT
DTC 0.6V
SOFT START
S.C.P.
– 50 –
VOLTAGE
DETECT
DIVIDER
DIV
CORRECTION
OSC
DETECT
30K
DRIVE
0.3V
10 VDD
9 OSC IN
OSC
8
OSC OUT
7 CE
/INTR
6
8 FB
OSC
7
6 GND
5 OUT