Sony MT-MZR70-165, MZ-R90/R91 service manual IC901 MPC18A31FTA, IC301, AK4517-VQ-L

Page 35

IC901 MPC18A31FTA

IC901 MPC18A31FTA

SLEEP

XWK1

XWK2

XWK3

XWK4

VCIN

VC

VCON

L1

PGND

L2

VROUT

36

35

34

33

32

31

30

29

28

27

26

25

VC

FFCLR

37

SAW

SYSTEM

VG

VG

OSC2

CONTROL

STEP-UP

STEP-UP

PRE DRIVER

PRE DRIVER

VB

VC

VC

VC

XRST

VSTL

38

PWM

PWM

FFCLR

VC

RF2

RF2

VRMC

39

VC

VC

XRST

40

VR

CRST

41

RSTREF

42

CLK

43

STEP-UP

VB

44

DC/DC

VREG

CONVERTER

VREF

45

BANDGAP

REFERENCE

CHGMON

46

VC

VB

DCIN

CHGB

47

DCIN

RF4

DCIN

CHGSW

48

1

2

3

4

5

6

7

8

9

10

11 12

DCIN

RS

INM5

RF5

BATM

INM3

INP3

RF3

FB

VREG

VLD

VR

IC301

AK4517-VQ-L

CMODE

PD

RST

SSB

LIN1 RIN1

TST1

LIN2 RIN2

TST2

LIN3

RIN3

48

47 46 45 44 43 42 41 40 39 38 37

MCLK

1

CLOCK

36

IPGAL

DIVIDER

LRCK

2

BCLK

3

AUDIO

35

ADCL

SDTO

4

34

VCMC

I/F

HPF

ADO

SDTI

5

CONTROLLER

33

VCMR

DIFO

6

32

ADCR

DIFI

7

DPGA

DBB

DAC

31

IPGAR

TST3

8

30

VRAD

DCODE0

9

29

LOUT2

DCODE1

10

CONTROL

DCODE2

11

REGISTER

CS(SCK)

12

I/F

28

ROUT2

27

VRDA

26

OPGAL

25

LOUT1

13 14 15

16 17 18 19 20 21 22 23 24

CCLK(SSI)

CDTO

CDTI(SSO)

DGND

VD

VB VA

AGND

VCOM DZF

OPGAR

ROUT1

– 43 –

24 RF1

23 RF2

22 INM1

21 DTC

20 INM2

19 VG

18 GND

17 SWVG

16 PWMVC

15 SERON

14 INM4

13 RF4

Image 35

Contents UK Model US ModelCanadian Model AEP ModelNotes on chip component replacement Flexible Circuit Board RepairingTABLE OF CONTENTS OPTICAL PICK-UPFLEXIBLE BOARD SECTION SERVICING NOTENOTES ON LASER DIODE EMISSION CHECK NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK LCX-2RSECTION 2 GENERAL Page Page SECTION DISASSEMBLY 3-4.MAIN BOARD 3-3.LCD MODULEover write head section 3-6.SERVICE ASSY, OP3-5.MD MECHANISM DECK MT-MZR70-165 3-8.MOTOR FLEXIBLE BOARD 3-7.HOLDER ASSY3-10.“MOTOR, DC M601”, “MOTOR, DC M603” 3-9.MOTOR, DC M602888xxxxxxxxxFREC1SHUF SECTION 4 TEST MODE4-2-2.Operation in Setting the Test Mode 4-2-1.Setting Method of Test Mode000M a n u a l 011 0 5 9 A 011 C 6 8 S011 0 F FJ 011 0 6 3 B000P * * R 000B O v r 000B f u l 000R t r y 000P * * RE I B 000S t a t 000A d r s 000B E m p 000# # # # # #000R # # # # 0001 s t0001 s t 0001 s t 0001 s t 000N - 1 000N - 1 000N - 2 000N - 2 000N• Description of Indication History Description of Error Indication Codes4-7.KEY CHECK MODE 021R e s SECTION ELECTRICAL ADJUSTMENTS021R e s N 021R e s O K ?766V r h V c h 762V c l P W M765V c h P W M 763V r h V c l341 C D O K 014S e t T m p000 A s s y C D R U NCheck Method 043R e s u m e043R e s C l r ConnectionConnecting Location SECTION DIAGRAMSMZ-R70 MZ-R70 Waveforms 6-3.BLOCK DIAGRAM - POWER SUPPLY SECTIONMZ-R70 Page Page MZ-R70 Refer to page 41 for IC Block DiagramsMZ-R70 MZ-R70 NJM2173 IC501SN761056 IC302MPC18A21MTB IC601MPC17A56FTA IC603AK4517-VQ-L IC901 MPC18A31FTAIC301 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 Published by General Engineering Dept Sony CorporationMZ-R70 Personal Audio Division CompanySubject Taiwan model Addition US Model Canadian Model AEP Model UK ModelE Model Australian Model Chinese Model Ver