Sony CDP-H3700 Manuale utente

SER[|IGE

MANUAL

This

setistheCDplayer

section

inMHC-2700/37OO.

AEP Model

UK Model

ModelNameUsing

Similar

Mechanism cDP-H3600

CDMechanism

Type CDMT3BA.5BD3

Optical

Pick-UpBlockType BU.5BD3

Sy!t.m

Lr3et

Leloi outpul

SPECIFICATIONS

Comp.ct dllc dlgltel audio

3y!tam

Srmlconductor ltsa?

(i.= 78{)

nm)

Emi!3ion

duration:

conUnuou!

Mrr. 44.6

,lW'

'Thl! output

it thevrluo

merlurcd at ! distanceof

lbout æ0 mm trom th€

obrcctlva

lcn! lurface on

thc Oprlcll Plck-upBlock.

Signll to nolsc ratloMorothln 90dB

Oynamlc

rangc Morathln 90dB

l{ermonlcdl.torllon Lcc! lhan 0.05%(et 1kHr)

Chenncllope?ltlon Morc then9()dB

Outputlsvsl 2V (.t 50kllohm3)

Losd lmpsdrnc! Morolhan 10kilohmg

outputs D|GITAL

OUT

OPflCAL

(optlcal

oulputconnoclor):

w!v. leneth660nm,

outPutleval-18 dBm

Deslgn end specltlcatlom lublecl to chang€

wlthoul nollco.

Forthe United

countries. Kingdom

and

Europaan

ctl88rL gERPROOUCT

urol(^N I t SERI.A|TE

Kt-A8g I LA8EtoUrPAftT

This

appliance

isclassified

aCLASS

LASER

Producl

The

CLASS

1LASER

PRODUCTlabelis located

ontherear

exterior.

SAFETY.BELATED

COMPONENTWARNINGII

coMpoNENrs

TDENTTFTEo

By MARK

2\ on oorreo

LINE

wrrH manx 7\ oN THE

scHEMATlc

DTAGRAmS

AND IN THE PARTS LIST ARE CRITICAL TO SAFE

OPERATION. REPLACE THESE COMPONENTS WITH

SONY PARTS WHOSE PART NUMBERS APPEAR AS

SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPU&

LISHEO BY SONY.

COÙIPACT

DISC

PTAYTR

SONY

TABLE

OFCONTENTS

Section Page

I. GENERAL

1-1. Partsldentification

. ......3

2. TESTMODES

2-1. TestMode

of Display

Microcomputer

(IC401)

....4

2-2. Test Mode

of CDSystemController

(1C202)

.. ....4

3. ELECTRICALBLOCK

CHECKING .........5

4. DIAGRAMS

4-1. PinDescription.... .......7

4-2. BlockDiagram.... .......9

4-3. PrintedWiringBoards ..........12

4-4. SchematicDiagram .......15

4-5. SemiconductorLead

Layouts ...........22

5. EXPLODEDVIETYS

5-1. Chassis ..........23

5-2. CDBlock

(CDM13BA-58D3) ...... .....24

5-3. Optical

Pick-UpBlock

(BU-5BD3)

...... .... ... .25

6. ELECTRICALPARTSLIST ........26

NOTES

ON HANDLINGTHE OPTICAL

PICK.UP

BLOCK

BASE

UNIT

The laser diode in the optical pick-upblock may suffer

electrostatic breakdownbecauseof the potential diference

generated

by the chargedelectrostaticload,etc.on clothing

andthe human

body.

During repair, pay attention to electrostaticbreakdownand

also

use

theprocedure

in theprintedmatter whichis included

in the repair parts.

The flexible board is easilydamagedandshouldbehandled

with care.

NOTESON LASERDIODEEMISSION

CHECK

The laser beam on this model is concentratedso as to be

focused

onthe discreflective surface

by theobjective

lens

theopticalpick-up

block.Therefore,whenchecking

thelaser

diodeemission,observefrom more than30cm

awayfrom the

objectivelens.

LASERDIODE

ANDFOCUS

SERCHOPERATION

CHECK

1. Make POWERswitch on with no disc inserted

anddisc

tableclosed.

2. Confirm that thefollowing operationisperformed

while

observing

the objectivelens.

oConfirm that laserbeamis spread.

oUp anddown motion of the objectivelens.

(3times)

Title

-2-

I cpP-H3700

sEcfloN I

GENERAL This

section

isextractedfrom

instructionmanual

O l-1. PARrs

tDEt{rtFtcATlof{

fl Oisctray

El CDoPeration

buttong

ê : OPEN/CLOSE

>ll : Pleyrpeus€

l: StoP

<<0<<DD0>> : Manualsearch(when

keptdepræsed)/Autometic

Muslc

Sengor(whenPressed)

@ Display

window

El EDIT/TIME

FADE

bunonQ Q

El cHEcK bulton

, ru,,l

2-L. Test tlode of Display Microcomputer (tC401)

ConnectPin @of IC40l to ground

andtum ON thepOWER

switch,

thus

you

cantestthe

following

3tests.

(f)Nl FL tubeON

This

modeis

acruared

immediately

afrer

ruming

ONthe

pOWER

switch.

(2)FL tubc scgmentcheck

This

mode

isactuared

bypressing

the

@ keyinthestate

of(l).

Everytime the

@ key is pressed,

the-segmenæ

areindicated

scquentially

from thesegment

a. WhenthelastI segmentis

displayd keyingin isnolonger

acceptedwhile

continuing

the

lighting-up

stateof thelastsegment.

Conditions

arenormal

provided

alllampslighr

upinthefollowing

order.

(3)KEY check

Thismode

iseffected

bypressing

the@keyinthe

state

of (l),

whileindicating

"l." Every

time

anew

keyispresscd

subse-

quently,

theindicated

numberis incremented.

Conditions

arc

normalprovided"7" is indicatedwhenall typesof keysare

prcssed.

Evenif akey

isprcssed

again,it isnot

counted.

. To leave

the mode(2) or (3), press

the@andfifl keysin

duplication,

thercby

themode

rerurning

toall ONmode.

sEcTroN

TEST

MODES

2-2. Test tlodes of CD System Controiler (tC2O2l

(I)ADJUSTmode

When

thismode

iseffected,

the

machineisoperated

normalty

except

forthefollowing.

. whenpin {D,

IC20l (ADJ)is ser

ro..L" afterrurning

oN the

POWER

swirch:

I. GFSisnolonger

monitored

during

PLAY,PAUSE

orSEARCH,

while

not

sropping

even

with

GFS

rcmaining

srillar.L" (NG).

2. Nohigh-speed

feeding

isactivated

during

SEARCH.

3. Focus

gain

isreset

tonormal

gain

duringPLAY (normally,

the

gainislowered

toreducenoisewhen

FOCUS

islocked).

. When

@,IC20t(AFADJ)

issetro..L"aftertuming

ONthe

FOWER

switch:

l. Regardless

ofPin@

(ADJ)

ofthe

CLV-Sfixedfunction,

the

CLV

mode

during

PLAY becomes

CLV-S(rough

servo)onlywhile

eremains"L".

(2)AFADJUST

mode

In thismode,

it ispossible

tochecktheinterface

between

the

display

micon

(IC4OI)

and

CDsyscon

(IC20l).

. SetPin

@,IC20l (AFADJ)

ro"L" beforerurning

ONrhe

FOIryER

switch.

l. Everytime

the

@key ispressed

afterturning

Onthe

pOWER

switch,

indication

ontheFL tubeisswitched

conespondingly.

Conditionsare normalprovidedthe indicationrcpeats

the 4

patterns

including

alllamp

ON.

T[mON theFOIITER

afterconnectins

[email protected]

6cNp.

All FL tube

lamps

ON mode

Duplicated

pressing

of El and[fl

r.7 18 19 20

-4-

sEcTtoN

ELECTRICAL

BLOCK

CHECKING

Note :

1. CD Block basically constructedto operatewithout adjus.

tment. Therefore, check each item in order given.

2. UseYEDS-18

disc

(3-702.101-01)

unlessotherwiseindicat-

ed.

3. Use the oscilloscopewith more than 10MO impedance.

4. Clean an object lens by an applicator with neutral deter-

gent when the signal level is low than specified value

with the following checks.

SCurveCheck

BDboarcl

rP(FEO)

rP(vc)

Procedure :

l. Connect oscilloscope to test point TP (FEO) on BD

board.

2. Connect between test point TP (FES) and TP (VC) bv

leadwire.

Turned Power switch on and actuate the focus serch.

(actuatethe focus serchwhen disctable is moving in and

out.)

Check the oscilloscopewaveform (S curve) is symmetri.

cal between A and B. And confirm peak to peak level

within 3+ 1Vp-p.

S curve

wavelorm symm€try

within

3 tlVÈp

5. After check, remove the lead wire connectedin step 2.

Note : o Try to mesure several times to make sure that the

ratio of A : B or B : A is more than 10: 7.

o Take sweep

time aslong aspossible

and light up the

brightness to obtain best waveform.

RFLevelCheck

BD board

TP(RFO)

rP(vc)

Procedure :

1. Connect oscilloscope

to test point Tp (RFO) on BD

board

2. Turn Power switch on.

3. Put disc (YEDS.l8) in and playback.

4. Confirm that oscilloscopewaveform is clear and check

RF signal level is correct or not.

Note:

Clear RF signal waveform meansthat the shape"O" can be

clearly distinguished at the center of the waveform.

signalwaveform VOLT/DlV:

20OmV

TIME/O|V:

5O0nS

level :

I 2:3:lVtp

E-F

Balance

Check

BP-

rP(TEO)

TP(VC)

l. Connect test point TP (ADJ) to ground and Tp (TES) to

TP (VC) with leadwire.

2. Connect oscilloscope

to test point TP (TEO) on BD

board.

3. Turn Power switch on.

4. Put disc (YEDS-l8)in and playback.

5 Confirm that the osilloscope

waveform issymmetrical on

the top and

bottom in relation

to 0V,and

checkthislevel

Traverse

oscilloscope

symrnetry

oscilloscope

oscilloscooe

6. Remove the lead wire connected in step I

lVpp

RF PLL Free.run Frequency Check

Procedure:

1. Connectfrequency

counterto testpoint (PCK)with lead

wire.

Main

board

TP(PCK)

frequency

counter

2. TurnPowerswitch

on.

3. Confirmthat

reading

onfrequency

counter

4.3218MH2.

Focus/TrackingGain

This gain hasa margin, so evenif it is slightly off.

Thereis noproblem.

Therefore,do not perform,this adjustment.

Pleasenote that it should be fixed to mechanical center

position

when

youmoved

anddonotknoworiginal

position.

(MAIN

Board)

-Component

Side-

(MAIN

Boardl

-Conductor

Side-

Checking Location:

(BD Board)

-6-

cDP.H3700

sEcfloN

DIAGRAMS

4.I. PINDESCRIPTION

. lC2Ol

GDSystem

Controller

(rPD75116GF-F21-3BE)

Functions

effectedbythe

captioned

controller

irrcludelCl0l (RF

signal

processing,

sewo),IC202

(DSP,

digitalfilter)

andloadingconrolinrhe

CDunit,dataexchangewith

IC4OI

(display

controller),

audio

busentry,

etc.

PinNo. Pin

Name vo Description

t-2

GMUTE,

GCLR

DFCLK o

Notin usc

with themodel

(open).

Display

daa transfer

clockoutputtoIC4OI(display

micon)

IC204

(CXD2554M)

connolouçut.

RBET

DFCTSW

System

rcsetinput."L": Reset

Clockinput

Clock

input

(4MHz)

DEFECT

circuitON/OFFswitching

outputofICl0l (CXAI372Q).

It istumed

OFF

("H") tofocus-search

theDISCflawdetectioncircuit.

AMUTE

BSOUT

AFADJ

LDON

XLT

Muting

controloutput.

"H": Muæ

Audio

busouput

Test

modeinput. Various

testoperations

arceffectedupon

"L" afterturning

ONthe

POWER.

Optical

pickup

laserdiodÊ

ONpFF switchingoutput.

"H": ON

Serial

datalatch

outputtoIC202

(CXD2500AQ)

CLK

DATA

MODE

ADJ

GFS

Serial

data

transferclockoutputto IC202

(CXD2500AQ)

Serial

dataoutputtoIC202

(CXD2500AQ)

Notinuse

withthemodel

(CND)

Test

modeinput.Upon'L," GFScheckingis

disabled

while

continuously

rctating

thespindlenomatter

whetherframe

synchisissuedduringPLAY,

PAUSE

orSEARCH

GFSsignalinput

from

IC202

(CXD2500AQ).

"L": NG "H": OK

22-23

FOK

LODOUT

LODIN

Focus

OKsignalinputfromIClOl (CXAl372Q). "H": OK

Notinuse

withthemodel

(open)

OuputtorotateM29l (loading

motor)

intheloadingoutdirection.

OuputtorotateM29l (loading

motor)

intheloadingindirection.

Vss

oursw

KEYREQ

BSIN

Power

terminal

(GND)

5292

(Loading

inswitch)input

S29l(Loading

outswirch)input

Key

datarcquestinputfromIC4OI

Audio

businput (display

controller)

3l-36

SENS

Tiilm,

DÆ

I6BIT

Notinuse

withthemodel

(GND)

SENS

inputfromICl0l (CXAI372Q)

andIC202

(CXD250AQ)

Notinuse

with

the

model

(pull

up)

IC202

(CXD2500AQ)

digitalfiltermode

settinginput.It isfixed

at16bit,4fswith

themodel

(pull

up).

Notinusc

withthemodel

(GND)

-56

SUBQ

sQcLK

scoR

Subcode

QdatainputfromIC202

(CXD2500AQ)

Notinuse

withthemodel

(open)

Subcode

Qdatareadoutclock

ouput tolC202

(CXD250AQ)

Subcodc

syncS0

+ Sl detection

inputfromIC202

(CXD2500AQ)

Notinuse

withthemodel

(open)

59-62

$-a

N.C.

Voo

DPDATA3.O

Notinuse

withthe

model

(+5V)

Power

terminal

(+5V)

Key

data

input

anddisplay

dataouputwithIC,tOl

(display

controller)

Notin use

with themodel

(open)

*l Loadingmotorcontrol

IN OUT BRAKE

LODOUT@ LHH

LODIN

@HLH

-7-

ANK-TOO SECTION

5-1. MOUNTING

DIAGRAM

. See

page

44 and

45for semiconductorlead

TFUSE

IREC

BOARD)

DIAG

layouts

and

-\qz

rct04

r06

l2l

t05

tot t02

a,q,ffil.rlï,r

-46-

cDq-He700

. fC4Ol Display

controller (qPD752OGGF-716.38E)

Incharge

ofdisplayingthe

FLtube

and

keying

in,itexchanges

data

withthe

IC20l (CDsystem

conrroller)in4-bit

parallel

mode.

No. Pin

Name UO Description

2-ll

12-t5

16,

RESET

Gr-r0

I,k

VLOAD

System

reset

input."L": Reset

Digital

oupurtorhe

FLtube

Notinusewith

themodel

(opcn)

FLtubesegment

output

Power

supply

fortheFL tube

conrroller

(builtin)

G32V)

20-25

27,28

29,30

VPRE

J-e

Voo

d,c

b,a

Power

supply

fortheFL tube

predriver

G3.5V)

FLtubesegment

output

Power

terminal

(+5V)

FLtubesegment

output

FLtubesegment,

key

scanoutput

31,32

TEST

SELECT

BSIN

DPCLK

Not in usewith themodel (GND)

Testmodeinput."L": Testmode

Not in use

wirh rhemodel (pull up)

Not in usewith themodel (pull up)

Display dara

tansfer clock inpurfrom IC20l (CD system

conrroller)

37,

N,4l

43-4É, KEY REQ

DPDATAG3

Notinusewiththemodel

(pullup)

Notinuæwirh

themodel

(pullup)

Notinusewiththemodel

(open)

Key

data

rcqucst

ourpur

toIC20l (CD

sysrem

controller)

Key

data

ouputanddisplay

data

inputwithIC20l (CDsyslem

conrnoller)

-50

5r,52

53,54

KEYG3

Key daa input

Not in usewith themodel (pull up)

Not in use

with themodel (GND)

Not in usewith themodel (open)

System

clockinput

(4.19

MHz)

60-6/,

Vss I

System

clockinput

Power

supply

terminal

(GND)

Notinusewithrhemodel

(GND)

Notinusewirh

rhemodel

(open)

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