Sony MZ-R91 service manual IC804, RV5C348A-E2, IC901, MPC18A31FTA

IC804		RV5C348A-E2
			ALARM W REGISTER				10	VDD
				COMPARATOR W			VOLTAGE
			(WEEK,MIN,HOUR)
		32KHz					DETECT
32K OUT	1
		OUTPUT	ALARM D REGISTER
		CONTROL		COMPARATOR D
			(MIN,HOUR)
							9	OSC IN
			TIME COUNTER		DIV	DIVIDER	OSC
			(SEC,MIN,HOUR,WEEK,DAY,MONTH,YEAR)			CORRECTION
SCLK	2						8	OSC OUT
		I/O	ADDRESS	ADDRESS
			REGISTER	DECORDER			7	CE
SO	3	CONTROL				OSC
SI	4					DETECT
							6	/INTR
			SHIFT REGISTER	INTERRUPT CONTROL
VSS	5
IC901		MPC18A31FTA

CHGSW

CHGB

CHGMON

VREF

VB

CLK

RSTREF

CRST

XRST

VRMC

VBTB

FFCLR

48

47

46

45

44

43

42

41

40

39

38

37

DCIN

VB

DCIN

DCIN

1

FFCLR

XRST

RS

2

VC

SYSTEM

36

SLEEP

BANDGAP

INM5

3

CONTROL

35

XWK1

DCIN

REFERENCE

34

XWK2

– + +

VC

VC

VC VB

+

33

XWK3

+

–

SAW

32

XWK4

–

+

–

OSC2

RF5

4

VC

31

VCIN

BATM

5

VC

VG

30

VC

INM3

6

INP3

7

VREG

29

VCON

+

RF3

8

STEP-UP

–

PWM

28

L1

PRE DRIVER

RF1

FB

9

27

PGND

VREG

10

+

VR

VC

–

VC

VG

VLD

11

RF4

STEP-UP

DC/DC

VR 12

CONVERTER

PWM

STEP-UP

26

L2

+

–

–

+

–

+

PRE DRIVER

RF2

25

VROUT

13

14

15

16

17 18

19

20

21

22

23

24

RF4

INM4

SERON

PWMVC

SWVG

GND

VG

INM2

DTC

INM1

RF2

RF1

– 45 –