Sony R501PC service manual Main Board 3/3 System CONTROL/POWER Section

MZ-R501/R501PC

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 31)					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)		VSTB	VB
(Page 31)					6
			IC801(3/3)				VC
				VL	L902	VLO		VL
				RF AMP(IC501),				9
(Page 30)				LASER APC CIRCUIT	10		REGULATOR	VL 11

SERVO

2

CLK

VL MON 15

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

10

STB

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

SERIES

REC

RF AMP(IC501),

38

VC2 45

VG

5

POWER CONTROL(IC601),

VIF

PASS

MOTOR DRIVE(IC701)

42

REGULATOR

MOTOR/COIL

RESET

VIF B+

SYSTEM CONTROLLER(IC801),

VA

DRIVER(IC551)

EEPROM(IC804),

SWITCH

A/D CONVERTER(IC301),

VA

POWER CONTROL

SPINDLE SERVO DRIVE SWITCH(IC805)

VB B+

HEADPHONE AMP(IC302),

41

(IC601)

DVDD

Q851

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

NOISE

27

RFI

SWITCHING

L1

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

32

32