Sony MZ-N1 service manual

MZ-N1

6-8. SCHEMATIC DIAGRAM – MAIN Board (2/4) – • See page 40 for Waveforms. • See page 41 for IC Block Diagrams.

(2/4)

A0

A1

A2

A3

A4

C561

SCW

SCV

SCU

SP

SMU

SMV

SMW

XMD

3C	2C	1C	-K	+K
			TR	TR	C521	C522	R915	D904
					0.1	0.1	100	MA2S111

UI2

I2W

2PGNDW

O2W

2VWVM

VO2

UV2PGND

UO2

VMU2

VMR2

RO2

PGND2

FO2

MF2W

TF1

FI2

VI2

TR1

PWM2

RI2

CPUO2

D4

COM2

CPVO2

D3

C919

CPUI2

CPWO2

D2

10

6.3V

CPVI2

OE

D1

C920

CPWI2

	D1
	D2
VCP	VLP

D3

D4

D5

D6

D7

	Q904		R930	AP911
			1M	(VD)	S
	2SB1462J
					Q907
	R925				3LN01SS
					B+ SWITCH
	1M
R927		R928
1M	Q904,905	1M			S
	B+ SWITCH
		-1	-2	Q903
				S12302DS-T1
	Q905	R929	Q906	B+ SWITCH
		1M	XP1501		R909	R910
	UN9214J
			SWITCHING		10k	10k
				L907	C934	R934
					10
				10∝ H		22k
					4V

A5

(Page 36)

A6

A7

A8

A9

A10

0.1

CMW

CMV

CMU

CP

CCU

10

6.3V

GND1

NC

VC

FOCUS/TRACKING COIL DRIVE,

GND2

SPINDLE/SLED MOTOR DRIVE

D5

VG

CPWI1

IC551

D6

AP914

CPWO1

SC111258FCR2

CPVI1

(VC)

D7

CPVO1

CPUI1

D8

CPUO1

COM1

FR1

PWM1

RI1

PGNDUV1

FF1

UI1

1PGNDW

1VMVW

FI1

PGND1

VI1

WI1

O1W

VO1

UO1

VMU1

VMR1

RO1

FO1

VMF1

R911

4

5

6

XRST

470

C

C

C

C512

C566

C930

0.1

0.1

0.22

C917

0.1

V

W

FCS-

FCS+

C915

CC

CC

0.1

C932

0.1

CSEL

L906

R924

D905

2.2k

100∝ H

MA2Z748

FF

Q902

C931

R938

R923

C933

SL

470k

100p

0

100p

2SD2114KT146

0.5%

B+ SWITCH

R916

P

DV

DC/DC

CE

VDD FB

1M

C926

CONVERTER

0.5%

GND

EXT

1000p

C902	C901	D901
10	10
		MA2YD15
6.3V	6.3V

R933

1ML903

10∝ H

VIF

VA

VAFB

VDFB

VIFFB

GND

VC

VCO

VC

VCOUT

L1

NC

PGND1

PGND1

L1

NC

VD

RF1

VC2

INM1

XRST

DTC1

CRST

DTC2

RSTREF

RF2

VREF

INM2

VB

POWER CONTROL

VDRF

GND

IC901

VGFB

CLKSEL

XPC18A32AFCR2

VG

VAIFON

LG

FFCLR

PGND2

SLEEP

L2

CLK

PGND2

PGND2

NC

NVLO

XWK1

XWK2

XWK3

XWK4

VSTB

VRMC

DGN

VL

VLO

VL

L2

L901

100∝ H

R941

22k

R902

470k

	R903	C905
	2.2k	0.1
	C908		0.1
	C921		0.1
				C922
				1000p
R935 R937		C906		R905
1M	470k	0.01		2.2k

C924 C907

0.472.2

C923 C925

0.470.47

D903

MA729

L905	R917
100∝ H	0

(Page 38)

M602

(SLED)

U

W

M603

OVER WRITE

HEAD UP/DOWN

U

W

M601

(SPINDLE)

N
	CN502
	10P
	1
V	SLEDN
	C1
	SLEDU
	C2
	SLEDV
	C3
	SLEDW
	HD DRV-
	HD DRV+
	C4
	CLVW
	C5
	CLVV
	C6
N	CLVU
	CLVN
	10
V

RB551

2.2k

X4

RB552

10k

X4

		D1
		D2
		D3
C562	C563	C564
0.047	0.047	0.047
		D4

D5

D6

D7

D8

022.	01.0	022.	01.0	022.	01.0
C5570	C570	C5580	C571	C5590	C572

			D905,Q901			5%
				IC902		.0	4V	4V
			DC/DC
				XC6368D101MR		100kR922	22C928	C92922
			CONVERTER
			S	Q901
				XP151A13A0MR
				Q908
R961		R954	R956	2SA1745
10k		47k	1M
0.5%		0.5%
			Q908,909	R958					R953	470k
				100k	R960
			B+ SWITCH		220k			Q910	R952	220k
		VOUT						2SD2216J	R951	470k
	VIN
VOLTAGE				Q909		Q910,911			R950	100k
DETECTOR			R955	2SD2216J		SWITCHING
		VSS	220k
IC903	NC
						Q911
XC61CN0802NR
C936			C935	R959		2SD2216J
0.1			0.1	220k

C914

0.1

					L904
NOVL	TEWD	KCER	KCMR	FLAH	10∝ H
					10k	MA2YD15
					R920	D902
					0.5%
					C904
					10
					6.3V
					C913	C903
						100
					4700p	6.3V
ZZ2		ZZ3		ZZ1

L902

22∝ H

AP912

(GND)

D8

D9

AP915

(VL)

D10

E1

(Page 39)

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