Sony service manual MZ-R500/R500PC, MAIN BOARD 3/3 SYSTEM CONTROL/POWER SECTION

MZ-R500/R500PC

6-4. BLOCK DIAGRAM — SYSTEM CONTROL / POWER SECTION —

SWITCH

&

LCD MODULE

UNIT

MAIN BOARD (3/3) SYSTEM CONTROL/POWER SECTION

SECTIONAUDIO

4

RMC KEY

(Page 37)

7

VRMC

XWK3

RMC KEY 20

4

CLK

FS4 86

56

CLK SEL

CLK SEL 169

52

FFCLR

FFCLR 236

54

SLEEP 235

55

SLEEP

SYSTEM

VLON 234

1

VLON

CONTROL

XWK1

POWER CONTROL

VB

WK DET 17

2

XWK2

IC901

REC KEY 18

3

HEADPHONE AMP(IC302),

XWK4

MOTOR/COIL DRIVE(IC701),

HALF LOCK SW 19

5

VAIFON

SYSTEM CONTROLLER(IC801)

SDO0

53

AUDIO

3

S805

B+

SECTION

SCK0

SYSTEM CONTROLLER

(HALF LOCK)

6

VSTB

VB

(Page 37)

IC801(3/3)

VC

VL

L902

VLO

VL

9

(Page 36)

RF AMP(IC501),

10

REGULATOR

VL MON 15

LASER APC CIRCUIT

VL 11

SERVO

2

CLK

VL B+

B+

VREF

BANDGAP

D902

L905

VREF

49

L2

SECTION

SWITCHING

12

CN801

REFERENCE

L801

REGULATOR

L2 16

12

SDO0

AVDD 21

24

DTC2

STEP-UP

L904

SCK0

13

25

DTC1

PRE DRIVER

RST

RF2

&

LG

14

187

LCD RST AUX

PWM

STEP-UP

18

STB

10

206

LCD STB

TSB MST VDD 141

VC B+

39

VDFB

DC/DC

VG 19

D903

CS

VD

CONVERTER

11

205

XCS LCD

44

VD

SYSTEM CONTROLLER(IC801)

XWK1

VIF

B+

4

A/D CONVERTER(IC301),

VIFFB

REC

RF AMP(IC501),

38

SERIES

VC2 45

VG

5

POWER CONTROL(IC601),

VIF

PASS

RESET

VIF B+

MOTOR DRIVE(IC701)

VA

42

REGULATOR

MOTOR/COIL

SYSTEM CONTROLLER(IC801),

DRIVER(IC551)

SWITCH

EEPROM(IC804),

A/D CONVERTER(IC301),

VA

POWER CONTROL

SPINDLE SERVO DRIVE SWITCH(IC805)

DVDD

Q851

VB B+

HEADPHONE AMP(IC302),

41

(IC601)

8

VIF B+

B+

SYSTEM CCONTROLLER(IC801)

B+

B+

7

PAUSE

1

PAUSE KEY

VC

D908

VC

SET KEY1

VCO

36

13

SET KEY1

6

POWER CONTROL(IC601),

35

REGULATOR

SET KEY2

3

14

SET KEY2

SYSTEM CONTROLLER(IC801)

VC 34

B+

1

INM2

VL PWM 164

22

SWITCH

L901

2

NOISE

RF2

9

S801

23

VOUT

D901

L903

FILTER

HOLD

INM1

33

VC PWM 165

26

L1

NOISE

27

RFI

SWITCHING

32

FILTER

STEP-UP

REGULATOR

L1

28

XRST

RESET SIGNAL

227

XHOLD SW

XRST

8

46

GENELATOR

PRE DRIVER

CRST

DTC1

&

VB 50

S806

170

OPEN CLOSE SW

47

PWM

OPEN/CLOSE

DETECT

S803

VRECO

VRECO1

L1 1

230 PROTECT

OVER WRITE

L602

10

VRECO2

SWITCHING

11

L601

B+ SWITCH

PROTECT

HEAD DRIVE

15

REGULATOR

L1 2 14

DETECT

CIRCUIT

Q603

B+

VREC

STEP-UP DOWN DW BT 22

TAP801

3

XTEST

16

SWITCH

CHARGE

(TEST)

INM1

PRE DRIVER

DW TP 21

19

&

PWM

VIF B+

CHARGE

D904

RF2

CONTROL

DRY BATTERY

48

AUXI

NOISE

RF1

Q903

SIZE " AA "

20

49

(IEC DESIGNATION)

FILTER

BATTERY

INM2 48

1PC,1.5V

CHARGER

INP2 47

VG B+

36

VG

POWER

&

REGULATOR

RS 46

CONTROL

VB B+

10

VB MON

IC601(2/2)

VIF B+

8

VI0

CHARGE

CHG SW

26

VC2

45

CONTROL

158 EVA

VC B+

9

VC

VB 43

CHG MON 11

51

CHGMON

CHARGE

MONITOR

BATM 44

CHG GAIN 237

54

GAIN

SYSTEM

VIF B+

DREG 56

CHG 238

55

CHG

CONTROL

LINE

TH901

(2/2)

DCIN 50

FILTER

D603

T901

GROUND LINE

SWITCHING

J901

Q902

DC IN 3V

HIDC MON 16

!

GND SW 171

38

38