Sony NW-MS6 service manual MBM29LV400BC-90PBT-SJDE1-4

NW-MS6

•IC Block Diagrams

– MAIN Board –

IC1001		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

IC5000

MBM29LV400BC-90PBT-SJDE1-4

A11

A10

A8

A9

DQ4

VCC

DQ12 DQ5

NC

NC

RESET

XWE

36 35 34 33

32

31

30 29

28 27

26

25

DQ7

37

DQ14

38

CONTROL CIRCUIT

24

DQ3

DQ13

39

DQ6

40

COMMAND

23

DQ11

REGISTER

22

DQ10

A13

41

LOW VOLTAGE

21

DQ2

A12

42

DETECT CIRCUIT

20

NC

A14

43

WRITE

ERASE

A15

44

19

NC

A16

45

CIRCUIT

CIRCUIT

18

NC

WRITE/ERASE

BYTE

46

PULSE TIMER

RY/BY

17

RY/BY

BUFFER

STB

4,194,304

Y GATE

DATA

I/O

CELL

LATCH

BUFFER

MATRIX

X

Y

CHIP ENABLE/

16

DQ1

DECOCER

DECOCER

OUTPUT ENABLE

15

DQ9

STB

ADDRESS LATCH

CIRCUIT

14

DQ8

DQ15/A-1

47

13

DQ0

VSS

48

1

2

3

4

5

6

7

8

9

10 11 12

A3

A4

A2

A1

A0

CE

OE

VSS

A7

A17

A6 A5

27