Sony MT-MZR70-165, MZ-R90/R91 service manual MZ-R70, Section, Diagrams

Page 25

MZ-R70

MZ-R70

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM — MD SECTION —

OPTICAL PICK-UP BLOCK

RF AMP, FOCUS/TRACKING ERROR AMP

DIGITAL SERVO SIGNAL PROCESSOR

EFM/ACIRC DECODER

(LCX-2R)

IC501

SHOCK PROOF MEMORY CONTROLLER

ATRAC DECODER

9

IX

XRST 25

IC502 (1/2)

IY

8

RF

RF

JX

33

78 RFI

DADT 42

DADT

10

AMP

PEAK

JX JY

11

JY

PEAK/

29

84 PEAK

XBCK 45

XBCK

A

C

BOTM

BOTM

28

85 BOTM

LRCK 43

LRCK

5

C

B

I-V

B

ABCD

ABCD

FS256 46

FS256

TO REC/AMP

14

D

A

CONV.

12

A

AMP

41

86 ABCD

RESET

SECTION

6

D

FOCUS

FE

42

87 FE

(Page 27)

ERROR

IX

IY

TRACKING

TE

1

96 TE

ERROR

AUTO POWER

LD

PD-O

ADFG

SYSTEM CONTROLLER

CONTROL

20

ADIP

21

99 ADFG

IC801(1/3)

Q1001

APC

OFTRK 26

4 MNT2

XRST 12

68 XIC RST

PD-IN

S-MON 43

20 OSCO

WRPWR 15

7

WRPWR

PD

18

SBUS

SCK

PDI

WPPLPF

3

LPF

MNT1

3

51 XSHOCK

SW

MNT3

5

52 FOK

23 24

19

Q501

X501

19 OSCI

DQSY 14

54 DQSY

DATA CLK

22.5MHz

SQSY 13

53 SQSY

PD SO

106 APC REF

XINT 16

55 XINT

SENS 11

6

SENS

PD SI

4 CH MOTOR DRIVE

XLAT

8

8

XLAT

TX 17

5

TX

IC601

XCS DSP 32

9

XCS DSP

TRACKING

30

TRACKING

21

110 TFDR

SLCU 138

COIL

COIL

32

22

109 TRDR

DRIVE

FOCUS

7

FOCUS

16

111 FFDR

SLCV 139

COIL

5

COIL

15

112 FRDR

DRIVE

11

14

133 SLDU

67 SPDL PWM

9

FOCUS

PWM24

13

134 SLDV

24 CLV U

M602

COIL

25

141 SLDS

25 CLV V

26

DRIVE

23

135 SLDW

26 CLV W

(SLED)

28

24

140 SLCW

PWM1

SWITCH

102 SSB DATA

SLED

3

103 SSB CLK

IC504, 505

MONITOR

M601

IC604

2

1

124 SPVS

46

SPINDLE

2

5

6

127 SPDU

SPCU 130

(SPINDLE)

44

MOTOR

1

2

1

128 SPDV

SPCV 131

36 PD SO

U

42

DRIVE

48

5

6

129 SPDW

SPCW 132

38 PD SI

W

V

SPINDLE

PWM

3

7

MONITOR

35 SLD MONI

OE

SPDL

CLVU CLVV CLVW

2

OFTRK

79 S MON

SLCU

SLCV

34 35 36

17

57 REC WBL SW

• Signal path

SPCW

SPCV

SPCU

49 SPDL START SW

: PB

TO POWER

04B SECTION OE (Page 29)

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Contents Canadian Model US ModelAEP Model UK ModelNotes on chip component replacement Flexible Circuit Board RepairingTABLE OF CONTENTS NOTES ON LASER DIODE EMISSION CHECK SECTION SERVICING NOTENOTES ON HANDLING THE OPTICAL PICK-UPBLOCK LCX-2R OPTICAL PICK-UPFLEXIBLE BOARDSECTION 2 GENERAL Page Page SECTION DISASSEMBLY 3-4.MAIN BOARD 3-3.LCD MODULE3-5.MD MECHANISM DECK MT-MZR70-165 3-6.SERVICE ASSY, OPover write head section 3-8.MOTOR FLEXIBLE BOARD 3-7.HOLDER ASSY3-10.“MOTOR, DC M601”, “MOTOR, DC M603” 3-9.MOTOR, DC M6024-2-2.Operation in Setting the Test Mode SECTION 4 TEST MODE4-2-1.Setting Method of Test Mode 888xxxxxxxxxFREC1SHUF000M a n u a l 011 0 F FJ 011 C 6 8 S011 0 6 3 B 011 0 5 9 AE I B 000P * * R000S t a t 000A d r s 000B E m p 000# # # # # # 000P * * R 000B O v r 000B f u l 000R t r y0001 s t 0001 s t 0001 s t 0001 s t000N - 1 000N - 1 000N - 2 000N - 2 000N 000R # # # #• Description of Indication History Description of Error Indication Codes4-7.KEY CHECK MODE 021R e s N SECTION ELECTRICAL ADJUSTMENTS021R e s O K ? 021R e s765V c h P W M 762V c l P W M763V r h V c l 766V r h V c h000 A s s y 014S e t T m pC D R U N 341 C D O K043R e s C l r 043R e s u m eConnection Check MethodConnecting Location MZ-R70 DIAGRAMSSECTION MZ-R70 MZ-R70 6-3.BLOCK DIAGRAM - POWER SUPPLY SECTIONWaveforms Page Page MZ-R70 Refer to page 41 for IC Block DiagramsMZ-R70 MZ-R70 SN761056 IC501IC302 NJM2173MPC17A56FTA IC601IC603 MPC18A21MTBIC301 IC901 MPC18A31FTAAK4517-VQ-L 6-9.IC PIN DESCRIPTIONS MAIN BOARD IC502 CXD2660GA Page Page Page Page Page SECTION EXPLODED VIEWS Page MAIN SECTION ELECTRICAL PARTS LISTMAIN MAIN MAIN MAIN MZ-R70 Sony CorporationPersonal Audio Division Company Published by General Engineering DeptE Model Australian Model Chinese Model US Model Canadian Model AEP Model UK ModelVer Subject Taiwan model Addition