Sony CDP-791 Bedienungsanleitung

CDP-791/X111ES

SERVICE

MANUAL

SPECIFICATIONS

Compact

disc

player

Frequency

response

Signal-to-notse

ratio

Dynamic

range

Harmonic

distortion

Channel

separation

Outputs

LINE

OUT

(FIXED)

(phono

jacks)

LINE

OUT

(VARIABLE)

(phono

jacks)

DIGITAL

OUT

(OPTICAL)

(optical

output

connector)

PHONES

(stereo

phone

jack)

General

Power

requirements

MICROFILM

2 Hz

kHz

0.5dB

than

108

than

Less

than

0.0027%

than

100

Output

level

(at

kilohms)

Load

impedance

over

kilohms

Output

level

max.

(at

kilohms)

Load

impedance

over

kilohms

Wave

length

660

Output

fevel

—

dBm

Output

level

max.

Load

impedance

ohms

US,

Canadian

Modei:

120

AC,

AEP

Model:

220

—

230

AC,

50/60

Model:

240

AC,

Model

Canadian

Model

CDP-X111ES

AEP

Model

CDP-791

Photo:

CDP-791

Model

Name

Using

Similar

Mechanism

CDP-291/391

CDM14-5BD1

Optcal

Pick-Up

Block

Type

BU-5BD1

Mechanism

Type

Power

consumption.

12W

Dimensions

{approx.,

430110280

(w/h/d)

including

projections)

(1747/4

11'/e

inches)

Weight

(approx.)

4.0

Ibs

07)

Supplied

accessories

Audio

cord

phono

plugs

phono

plugs)

Remote

commander

(AA)

batteries

Remote

commander

RM-D791

Remote

control

sysiem

Infrared

contro!

Power

requirements

VDC

with

two

(size

AA)

batteries

Dimensions

Approx.

175

(w/h/d)

(1°/5X

°/i6X

inches)

Weight

Approx.

130

(4.6

02)

Including

batteries

Design

and

specifications

subject

change

without

notice.

COMPACT

DISC

PLAYER

SONY.

CDP-791/X111ES

SAFETY

CHECK-OUT

After

correcting

the

original

service

problem,

perform

the

following

safety

check

before

releasing

the

set

the

customer:

Check

the

antenna

terminals,

metal

trim,

“metallized”

knobs,

screws,

and

all

other

exposed

metal

parts

for

leakage.

Check

leakage

described

below.

LEAKAGE

TEST

The

leakage

from

any

exposed

metal

part

earth

ground

and

from

all

exposed

metal

parts

any

exposed

metal

part

having

return

chassis,

must

not

exceed

0.5mA

(500

microampers).

Leakage

current

can

measured

any

one

three

methods.

commercial

leakage

tester,

such

the

Simpson

229

RCA

WT-540A.

the

manufacturers’

instructions

use

these

instru-

ments.

battery-operated

milliammeter.

The

Data

Precision

245

digital

multimeter

suitable

for

this

job.

Measuring

the

voltage

drop

across

resistor

means

VOM

battery-operated

volt-

meter.

The

“limit”

indication

0.75

analog

meters

must

have

accurate

low-

voltage

scale.

The

Simpson

250

and

Sanwa

SH-63Trd

are

examples

passive

VOM

that

suitable.

Nearly

all

battery

operated

digital

muitimeters

that

have

range

are

suitable.

(See

Fig.

Exposed

Metal

Parts

Set

voltmeter

aie

(0.75

Earth

Ground

Fig.

Using

voltmeter

check

leakage.

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

MARK

DOTTED

LINE

WITH

MARK

THE

SCHEMATIC

DIAGRAMS

AND

THE

PARTS

LIST

ARE

CRITICAL

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

SHOWN

THIS

MANUAL

SUPPLEMENTS

PUB-

‘LISHED

SONY.

MODEL

IDENTIFICATION

i-)

CDP-791

—Model

Number

Label—

CDP-X111ES

MODEL

NO.WYyyy7Z

SERIAL

No.

MMMM

MADE

JAPAN

MADE

FRANCE

Model:

AC120V

60Hz12W

Canadian

Model:

AC:

120V

12W

AEP

Model:

AC220

—

230V,

50/60Hz

Model:

AC240V~50/

60Hz

TABLE

CONTENTS

Section

Title

Page

Specifications

ere

eee

ee ee

Safety

Check-out

Cee

emcee

seer

enseseeeeenusenen

Model

Identification

«reece

reece

versace

cccenvece

GENERAL

Notes

Handling

the

Optical

Pick-up

Block

Base

Unit

--es

sec

reeset

cece

nenes

Notes

Laser

Diode

Emission

Check

---:--:

Location

Controls

CTCL

ere

eee

Adjusting

Operating

Voltage

--:---+++++++++>

DISASSEMBLY

Teor

Tee

ELECTRICAL

BLOCK

CHECKING

Curve

Check

ree

eae

enneaw

Level

Check

--crcsccccrcerceecnecccens

E-F

Balance

Check

Cece

eee

ere

nen

seas

aneve

PLL

Free-run

Frequency

Check

---++--::>

Focus/T

racking

Gain

DIAGRAMS

1C101(CXA1372Q)PIN

DESCRIPTIONS

-::+

4-],

Block

Diagram

gee

eee

-le'ee

ae eb

eee

ete

ecere

4-2.

Printed

Wiring

Boards

cee

een

ere

eee

eeene

4-3,

Schematic

Diagram

EXPLODED

VIEWS

Skea

ents

eae

ELECTRICAL

PARTS

LIST

----::-:----:

ATTENTION

COMPOSANT

AYANT

RAPPORT

SECURITE!

LES

COMPOSANTS

IDENTIFIES

PAR

UNE

MARQUE

SUR

LES

DIAGRAMMES

SCHEMATIQUES

LISTE

DES

PIECES

SONT

CRITIQUES

POUR

SECURITE

DE.

FONCTIONNEMENT.

REMPLACER

CES

COM-

POSANTS

QUE

PAR

DES

PIECES

SONY

DONT

LES

NUMEROS

SONT

DONNES

DANS

MANUEL

DANS

LES

SUPPLEMENTS

PUBLIES

PAR

SONY.

CDP-791/X111ES

NOTES

HANDLING

THE

OPTICAL

PICK-UP

For

Model

and

AEP

Model

BLOCK

BASE

UNIT

The

laser

diode

the

optical

pick-up

block

may

suffer

CLASS

LASER

PRODUCT

electrostatic

breakdown

because

the

potential

di-

KLASS

LASERAPPARAT

ference

generated

the

charged

electrostatic

load,

etc.

clothing

and

the

human

body.

During

repair,

pay

attention

electrostatic

break-

This

Compact

Disc

player

classified

CLASS

LASER

product.

down

and

also

use

the

procedure

the

printed

matter

The

CLASS

LASER

PRODUCT

label

located

which

included

the

repair

parts.

the

rear

exterior.

The

flexible

board

easily

damaged

and

should

—

hadicdwithGare-

PNohTUL)

Cale

elec

Liem

gedit

lets

For

the

customers

the

model

equipped

NOTES

LASER

DIODE

EMISSION

CHECK

with

the

voltage

Sieie:

The

laser

beam

this

model

concentrated

so as

Check

that

the

voltage

selector

set

the

focused

the

disc

reflective

surface

the

objec-

loca!

power

line

voltage.

not,

set

the

selector

tive

lens

the

optical

pick-up.

block.

Therefore,

when

the

correct

position

before

connecting

checking

the

laser

diode

emission,

observe

from

Power

corcite:dwallOuNel

than

30cm

away

from

the

objective

lens.

110-120'V

220-240

mien

SECTION

instruction

manual.

GENERAL

This

section

extracted

from

Location

Controls

Front

Panel

LZ]

3.5

4.54

6°

calurfusfan

yes

enter

2B}

27!

(25,

24)

123.22

2117

201.19'

1817;

1615.

POWER

switch

[16]

PHONES

jack

Disc

tray

MUSIC

SCAN

button

OPEN/CLOSE

bulton

(18)

<<»

(manual

search)

buttons

[4]

PEAK

button

[191

FADER

button

@ @

CONTINUE

button

and

indicator

©.

(20)

BPE

(AMS’*)

bulions

}

SHUFFLE

button

and

indicator

TIME

button

PROGRAM

button

and

indicator

(22|

SPACE

(auto

space)/A.

CUE(auto

cue)

bution

and

auto

cue

TIME

SET

button

indicator

EDIT/TIME

FADE

button

©,

(23]

(stop)

button

Numeric

buttons

(pause)

button

[41]

REPEAT

button

[251

(play)

button

42}

>20

(over

20)

button

{26|

Display

window

[13}

CHECK

(program

check)

button

[27]

TIMER

switch

CLEAR

(program

clear)

button

©, @.

[28!}

Remote

sensor

[15]

LINE

OUT/PHONE

LEVEL

control

—~—3—

CDP-791/X11T1ES

atztarelc=meote)nilaet-ale\s)

“2;

(1)

OPEN/CLOSE

button

SHUFFLE

button

PROGRAM

button

©.

[4]

M.SCAN

(music

scan)

button

LS]

Numeric

buttons

{6}

CLEAR

(program

clear)

button

?_}

CHECK

button

}

<—

repeat

button

1.9]

A.SPACE

(auto

space)/A.CUE

(auto

cue)

button

'10]

FADER

button

‘11]

(stop)

button

[12]

LINE

OUT

LEVEL

(line

out/headphone

volume)

10:

buttons

113]

SLOW

(low

speed

manual

search)

buttons

-E!

[14]

(manual

search)

buttons

ig:

15]

4—

—&

INDEX

buttons

AWS:

13}

[16]

AMS

buttons

erenetmer

[17]

(pause)

button

rea)

6/8

A[8/

rer

SrA

re]

119]

CLEAR/REPEAT

repeat

clear/repeat)

button

'20]

TIME

button

[21]

(over

20)

button

[22]

CONTINUE

button

@. @.

SECTION

DISASSEMBLY

BASE

UNIT

REMOVAL

Note:

the

disassembly

procedure

the

numerical

order

given.

Remove

mechanism

from

the

set

and

turn

over.

Turn

the

cam

@inthe

Arrow

direction

the

driver.

Take

out

disc

table

Qa.

Base

Unit

Remove

bracket

yoke

©.

BU-5BD1

Remove

BU-5BD1

the

Arrow

direction.

disc

table

—4—

SECTION

ELECTRICAL

BLOCK

CHECKING

Note:

Block

basically

constructed

operate

with-

out

adjustment.

Therefore,

check

each

item

order

given.

Use

YEDS-18

disc

(3-702-101-01)

unless

otherwise

indicated.

Use

the

oscilloscope

with

than

10MS2

im-

pedance.

Clean

object

lens

applicator

with

neutral

detergent

when

the

signal

level

low

than

specified

value

with

the

following

checks.

Curve

Check

oscilloscope

board

(FEO)

omw—o}

TP(vC)

ow—to-

Procedure

Connect

oscilloscope

test

point

(FEO)

board.

Connect

between

test

point

(FES)

and

(VC)

lead

wire.

Turned

Power

switch

and

actuate

the

focus

serch.

(actuate

the

focus

serch

when

disc

table

moving

and

out.)

Check

the

oscilloscope

waveform

curve)

symmetrical

between

and

And

confirm

peak

level

within

3+1Vp-p.

curve

waveform

symmetry

within

3£1Vp-p

After

check,

remove

the

lead

wire

connected

step

Note:

Try

mesure

several

times

make

sure

that

the

ratio

B:A

than

10:

Take

sweep

time

long

possible

and

light

the

brightness

obtain

best

waveform.

Level

Check

oscilloscope

(RF)

O=t———o+

(Vc)

omw—tlo-

board

Procedure

Connect

oscilloscope

test

point

(RF)

board.

Turn

Power

switch

on.

Put

dise

(YEDS-18)

and

playback.

Confirm

that

oscilloscope

waveform

clear

and

check

signal

level

correct

not.

Note:

Clear

signal

waveform

means

that

the

shape

“©”

can

clearly

distinguished

the

center

the

wave-

form.

VOLT/DIV

200mV

TIME/DIV.

500nS

\AAAAAAAAAAA)

WIN

2402

AANA

signal

waveform

E-F

Balance

Check

oscilloscope

board

eR.

(TEO)

Ow—o}

TP(vc)

ow—lo-

Procedure

Connect

test

point

(ADJ)

ground

and

(TES)

(VC)

with

lead

wire.

Connect

oscilloscope

test

point

(TEO)

board.

Turn

Power

switch

on.

Put

disc

(YEDS-18)

and

playback.

Confirm

that

the

osilloscope

waveform

sym-

metrical

the

top

and

bottom

relation

OV,

and

check

this

level.

Traverse

oscilloscope

symmetry

level:

2+1Vp-p

Remove

the

lead

wire

connected

step

CDP-791/X1TT1ES

CDP-791/X111ES

PLL

Free-run

Frequency

Check

Adjustment

Locations

Procedure

{BD

board)

Connect

frequency

counter

test

point

(PCIC)

with

lead

wire.

~—

conductor

side

—

Main

board

frequency

counter

omar

(PCK)

oe:

Turn

Power

switch

on.

Confirm

that

reading

frequency

counter

3218MHz.

Focus/Tracking

Gain

This

gain

has

margin,

even

if it is

slightly

off.

There

problem.

Therefore,

not

perform,

this

adjustment.

Please

note

that

should

fixed

mechanical

cen-

ter

position

when

you

moved

and

not

know

original

position.

(Main

board)

Component

Side

—

[C101

(CXA1372Q)

DESCRIPTIONS

NO.

NAME

FUNCTION

—

Beorran

—

FGD

FS3

FLB

FEO

FE=

SRCH

TGU

TG2

TAO

TAS

SL+

SLO

2L=

FSET

ISET

SSTOP

DIRC

LOCK

CLK

XLT

DATA

SENS

XRST

OUT

GND

MIRR

DFCT

ASY

EFM

FOK

CC2

CCl

RFI

RFO

TZC

TDFCT

ATSC

FZC

FDFCT

O-

OoO-

00-900

—Ps

SECTION

DIAGRAMS

2.5

Volts

power

supply.

Focus

gain

adjusting

capacitor

connected

between

and

pin.

Focus

gain

adjusting

capacitor

connected

between

and

pin.

Focus

Servo

low

frequency

boost-up

capacitor

connected,

Focus

drive

output.

Focus

error

amp

inverted

input,

Connected

capacitor

making

the

focus

serch

waveform,

Tracking

gain

adjusting

capacitor

connected

between

and

pin.

Tracking

gain

adjusting

capacitor

connected

between

and

©)

pin.

Volts

power

supply.

Tracking

drive

output.

Tracking

amp

inverted

input,

Sfed

amp

non-inverted

input.

Sled

drive

output.

Sled

amp

non-inverted

input,

Phase

stabilizer

setting

resistor

connected,

Current

setting

resistor

connected.

Limit

switch

connection

port,

Ground

(OV),

Direct

control

port,

Non-connected,

Sled

free-run

protection

operate

“L”.

Serial

data

transmission

clock

input

form

digital

signal

processor,

Latch

input

from

digital

signal

processor,

Serial

input

from

digital

signal

processor.

Outputs

internal

state

corresponding

address.

System

reset

input.

Reset

“L”,

Tracking

counter

output,

Digitel

ground,

Grounded

Mirror

output

digital

signal

processor.

Deffect

output.

Deffect

“H”",

Auto

symmetry

control

input.

EFM

Comparator

output,

Focus

OK,

Deffect

bottom

hold

input.

Deffect

bottom

hold

output.

Volts

power

supply,

Deffect

bottom

hold

capacitor

connected.

Mirror

hold

capacitor

connected,

Signal

input

(Capacitance

coupled).

Signal

input

(Direct

Coupled),

Grounded

(OV).

Tracking

Zero-cross

comparator

input,

Tracking

error

amp

input.

Deffect

correction

hold

capacitor

connected,

Anti-shock

input.

Focus

Zero-cross

comparator

input,

Focus

error

input,

Deffect

correction

hold

capacitor

connected,

Circuit

Boards

Location

OPTICAL

PICK

BOARD

POWER

SWITCH

BOARD

KEY

BOARD

DISPLEY

BOARD

Semiconductor

Location

Note:

O——

parts

extracted

from

the

component

side.

parts

mounted

the

conductor

side.

BOARD

MAIN

BOARD

——=—

MOTOR

(VR)

BOARD

eHP

BOARD

Block

Diagram

1C301

IC101

CXA1372Q

“ x

oo6

(36)

(35)

(3)

(32)

313023}

(25)

COMPARATOR

OMPARATOR

BUFFER

DATA

(37)

AUTO

nee

(38)

AMP

LL?

CLK

RFI

(39)

VtL

Lock

RFO

DFcY

DIRC

COMPARATOR

(19)

AVEE

BVEE

(41)

Tee

COUPARATORE

418)

SSTOP

FSI-4

TO1,2

TuI-7

PSI-3

TQ)

Fet

QAIN

Dre

pny

cae

TaceNa

(7)

ISET

We-

TDF

Bayo

cowry

SET

--—{is)

FSET

aTsc

(iS)—ofB.P.F}-*\

cqupakatony

BRAKE

‘*ti-""

offaar

rshene

re)

/DOWN

(8)

sL-

(at)

pret

pown/NORUAt

DFC

‘

1u7

Paces

aera:

Fe}

—-C

rorct

(a0)

”

rms

}

162

Pocus

ON/OFF

TM2

FOCUS

SLED

ON/OFF

$0)»

$11

228

888

“ <

CXD2500AQ

ASYMMETRY

CORRECTOR

HATA

BUS

IC202

M5290P-16

CTER

Emitter

COICE

(ours

CTER

OTe

CO}

Fal-)()

(S)F

aut)

WT)

(S)

OvT

$V}

Bal

ance

AOs

fal

IC302

CXD1244S

TESTS

TEST?

TESTS

(2)

TESTS

eee

DOOD

SOFT

/ATT

Pol

IC304

CXD2557M

TSTO4

OUT

Ook

—

Leh

SUUNO

DETEC

BMUTE

IC305

CXD2552Q-3

(3)

vpo0

O-@-@

vss

(31)

LH)

(22)

126FS

INIT

von

(36)

(20)

SYNC

VSUB

(19)

TEST2

XVSS

TEST!

XOUT

THIRD

ORDER

XVDD

(41)

pou

NOISE

SHAPER

NTERPOLATER

BCKI

pas

DLI

[He

raf

inl

oan

bar

(12)

TESTS

(+)

VSS

vss

(~)

it~)

(a)

yoo

(+)

vss2_

(«)

yDn2

IC403

74HC175

this

parts

list.

les

remplacer

que

par

une

(1)

CHASSIS

SECTION

piéce

portant

neméro

spécifié.

not

supplied

Not

supplied

with

supplied

with

J481

not

supplied

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