Sony MZ-R91 service manual IC601, MPC17A56FTA, IC602, MPC17A17XDTBR2

IC601

MPC17A56FTA

WI

VMU

UO

GNDUV

VO

VMVW

WO

GNDW

CPUI

CPVI

CPWI

COM

48

47

46

45

44

43

42

41

40

39

38

37

VC

VC

VG

+

36

CPUO

–

VI

1

3PHASE

PRE

+

35

CPVO

UI

2

CONTROL

DRIVER

–

PWM

3

+

34

CPWO

–

VM1

4

VG

VC

VC

VC

VC

VG

33

VM3

RO1

5

PRE

H-BRIDGE

H-BRIDGE

PRE

32

RO3

PGND1

6

31

PGND3

DRIVER

CONTROL

CONTROL

DRIVER

FO1

7

30

FO3

VM12

8

VG

VC

VC

VC

VC

VG

VC

ROE

BIAS

29

VM34

RO2

9

PRE

H-BRIDGE

H-BRIDGE

PRE

PGND2

10

28

RO4

DRIVER

CONTROL

CONTROL

DRIVER

FO2

11

VC

VG

27

PGND4

VM2

12

26

FO4

25

PWM24

13 14

15 16 17

18

19

20

21 22

23 24

RI2 FI2

RI1

FI1

OE

VC

GND

VG

FI3

RI3

FI4

RI4

IC602

MPC17A17XDTBR2

VC	1
VMC	2
OUTA	3
				16	OUTC
				15	GND
	CHARGE
	PUMP	LEVEL		14	OUTB
		SHIFTER
		PREDRIVER		13	VMAB
VG	4
C2H	5
C2L	6			12	C1H
				11	C1L
	LVDET
			CONTROL	10	EN2
IN1	7
			LOGIC
IN2	8			9	EN1
				– 43 –