Sony MZ-300 specifications Main Board, Block Diagrams

MZ-E300

5-2. BLOCK DIAGRAMS

Iy

MAIN BOARD

RF AMP,FOCUS/TRACKING ERROR AMP

Ix

CN501

IC501

VREF

6

4

VREF

Jx

9

Iy

8

Iy

RF OUT

33

10

Ix

9

Ix

PEAK

14

Jx

10

Jx

PEAK

29

Jy

RF AMP,

BOTM

Jx

Jy

Jx

Jy

Jy

/BOTM

28

15

A

11

A

FOCUS

16

12

ERROR,

ABCD

B

B

41

A

17

14

TRACKING

FE

Ix

Iy

Ix

7

C

5

C

ERROR

42

B

8

D

6

D

TE

1

A-C

a

b

c

d

13

TPP/WPP

ADIP IN

44

D-C

ADIP

21

C

7

F

18

MON

18

PD-I

APC

PD-NI

19

D

VC

31

VIF

PD

OFTRK

26

22 DVDD

XRST

25

SERIAL

SBUS

23

I/F

SCK

24

5

LASER

S-MONITOR

S MON

43

LD-A

PD-O

12

AUTO POWER

20

LD

CONTROL

Q501

13

LD-K

AVCC

AVCC

AVCC

20

S0

S0

11

S1

S1

19

FOCUS/TRACKING COIL DRIVE,

SPINDLES/SLED MOTOR DRIVE

MINIDISC

IC551

OPTICAL PICK-UP BLOCK

(LCX-4E)

42

38

41

DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO SIGNAL PROCESSOR,
ATRAC ENCODER/DECODER,
8M BIT D-RAM, D/A CONVERTER	HEADPHONE AMP

	IC601							IC301
											RCH
		OUT L	56				22			2	LCH
9	EFMIN
						RCH
17	PEAK								OUT B	4
		OUT R	57				21	IN B			RCH
18	BOTTOM			VD
19	ABCD	VDD1	15		REGULATOR	UNREG	1	+B	BEEP OUT A
		VDD1	63							24
								VCC
21	FE				IC602	VIF	20		BEEP OUT B
		VDD1	87							23
						VC
20	TE
		AVDD	55	2	VOUT VIN	3
							15		BEEP		REFERENCE
94	ADIPWO			VA			18	STB	VREF IN 13		VOLTAGE
		VCVDD	3								SWITCHING
							17	MUTE
		VDD2	13								Q301
37	LDREF
		VDD2	41
2	RFVC MON
		VDD2	59
12	HFL	VDD2	89
		DI	86
10	RESET B	DO	88				2	4
								3 STATE BUFFER

1 IC803

							Q801
22 VC					SYSTEM CONTROL
					IC801		EEPROM
52	TRPWMF						IC802
53	TRPWMR	XIN 60	20	XCLK	BEEP	51
49	FOPWMF						XCS SK DI
		WRQB 92	23 DSP WRQB		HP STB	19		DO
51	FOPWMR
		INTB 93	24	DSP INTB	MUTE	18	1 2 3
								4
		SMON3 70	25 DSP SMON3
					NV XCS	52
		CE 84	26 DSP CE
					S102 CLK	54
		VP 75	57	DSP VP
					S102 DO 56
			33	PD S1	S102 DI	55
					SEG0	60
			32	S BUS DATA	SEG11	72
			31	S BUS CLK	COM0	73
			6	RF SMON
					COM3	76
			34 SLD1MON		HOLD SW	15
					SET KEY	4

J301

i

LIQUID

CRYSTAL

DISPLAY

OFF

				40			37
				39
		2	TRK+	33
					PRE
TRACKING				32		HI-BRIDGE	24
					DRIVER
COIL						CONTROL	25
			TRK-
		1		35
			FCS+	36			BIAS
		4
				11
FOCUS
				10
COIL			FCS-
		3		7		HI-BRIDGE	19
					PRE
					DRIVER	CONTROL	18
MINIDISC				8
MECHANISM BLOCK
M902			CN551
(SLED)	SLED1+	5		14	PRE	HI-BRIDGE	16
				15			17
	SLED1-				DRIVER	CONTROL
		7		12			20

35 SLD2MON
17	XIN
X801
16.9344MHz	XOUT
16

47 SLED 1R CON

48 SLED 1F CON

37 SLD VCON

			S808
			(OPEN/CLOSE)
OPEN CLS SW	5		S807	S806	S805		S804	S803	S802	S801
			DIGITAL	PLAY MODE	VOLUME		VOLUME	. >N		x
			MEGABASS/	/DISPLAY	–		-+
			AVLS	POWER SUPPLY
			DVDD	IC901			VL
			44	VD	VLO	10	VC
			5
				XWK4	VCO	35
			2	XWK1			VIF
RMC KEY	3		7	VRMC	VIF	42	AVDD
			4	XWK3
						41
UNREG MON	1	UNREG	6	VSTB	VA
			3	XWK2	VG	19		VG
			26	INM1			D903
					LG	18
VC VCOM	38		27	RF1
VL VCOM	58		23	RF2				UNREG

ON

S809

HOLD

SLED2+		28
	6	29	PRE	HI-BRIDGE	26
SLED2-	8	31
			DRIVER	CONTROL	27
	1	54			1
		51
		52			56
M901		53			55
(SPINDLE)
CLVU	2	48
					2
		45
CLVV			PRE	3 PHASE	3
	3	46
			DRIVER	CONTROL	4
CLVW		49			5
	4	44
					6
		UNREG

50SLED 2F CON

49SLED 2R CON

XCS NV

SI0

39 CLV U MON

SCK0

42 CLV V MON

S00

43 CLV W MON

46CLV W CON

45CLV V CON

44CLV U CON

36CLV VCON

PWR CLK	59
PWR VLON	29
PWR SLEEP	28
PWR FFCLR	27
XRST	9
AVDD	10
VL MON	8	VL
PWR CLKSEL	30
		BP801
		(TEST)
XADJUST	14

22	INM2	VL	9
56	CLK	VL	11
1	VLON	L2	D902
55	SLEEP		16
		L2	12
54	FFCLR
46	XRST	VB	50
36	VC
34	VC	L1	32	DRY BATTERY
45	VC2	L1	28	SIZE "AA"
			D901	(IEC DESIGNATION LR6)
52	CLK SEL	VC OUT	33	1PC, 1.5V

• Signal path. F : Analog J : Digital

18 18