Sony CDP-997 - Compact Disc Player Manuale utente

SERVICE

MANUAL

CDP-997

Model

AEP

Model

Name

Using

Similar

Mechanism

CDP-597

Mechanism

Type

CDM14-5BD8A

Compact

disc

player

Frequency

response

Signal

noise

ratio

Dynamic

range

Harmonic

distortion

Channel

separation

Outputs

LINE

OUT

(FIXED)

(phone

jacks)

LINE

OUT

(VARIABLE)

(phone

jacks)

DIGITAL

OUTPUT

(OPTICAL)

(optical

output

connector)

HEADPHONES

(stereo

phone

jack)

General

Power

requirements

Power

consumption

MICROFILM

Optical

Pick-Up

Block

Type

BU-5BD8A

SPECIFICATIONS

Hz-20

kHz

+0.3

than

115

than

100

Less

than

0.0025%

than

110

Output

level

(at

kilohms,

non

DSP

mode)

Load

impedance

over 10

kilohms

Output

level

max.

(at

kilohms,

non

DSP

mode)

Load

impedance

over

kilohms

Wave

length

660

Output

level

—18

dBm

Output

level

max.

Load

impedance

ohms

120

AC,

Dimensions

Approx.

430

110355

(w/h/d)

(17

43/3

inches)

Including

projecting

parts

and

controls

Weight

Approx.

4.6

Ibs

oz)

Remote

commander

(RM-D997)

Remote

control

system

Infrared

control

Power

requirements

with

two

batteries

size

(IEC

designation

R6)

Dimensions

Approx.

62x

18175

(w/h/d)

(21/5

23/39

inches)

Weight

135

(4.6

0z)

Including

batteries

Supplied

accessories

Connecting

cord

(1)

phono

plugs

phono

plugs).

Remote

commander

(1)

Sony

SUM-3(NS)

batteries

(2)

—

Continued

page

—

COMPACT

DISC

PLAYER

SONY.

CDP-997

Optional

accessory

Audio

optical

connecting

cord

POC-15

Design

and

specifications

are

subject

change

without

notice.

TABLE

CONTENTS

Section

Title

Page

Section

Title

Page

GENERAL

EXPLODED

VIEWS

1-1.

Identifying

the

Parts-+++++++++ereseetereeeeeeeeeeeeescreereeceneesecneaan

eee

6-1.

Operation

Assembly

srrrsterseesseseeesensseeeseeeeseeseetesensene

essen

ees

6-2.

Main

Assembly

-s++r++esseeeeeteeeeeercecencsecnaseeeneeasscoeesaaeerennns

DISASSEMBLY.

.------:-cecescecectcececcecccevececcscccasererecsacens

6-3.

Assembly

(CDM-SBDBA)++rrserrersstessessereerseesenssennerscees

6-4.

Optical

Pick-up

Block

Assembly

(BU-SBD8)

-++++++++++-seeeseeeeeees

FUNCTIONS

«0-0-0

:-eesessceescneccnseseeececccesseeeneees

ELECTRICAL

PARTS

LIST

-::----:---:::-sssscsescceeeeesseees

ELECTRICAL

BLOCK

CHECKING

------------:eesseeeeeeees

DIAGRAMS

5-1,

Block

Diagram

++++ssssecesesseseeeesrceessseneserssecesesseeeeenseeeeeses

5-2,

Printed

Wiring

Boards

5-3.

Schematic

Diagram

-+++-+++-+++2eeeeeeeeeeeeeeeeeee

eee

eeeeeeeeeeeeeeeeeees

Block

Diagrams:+++++++ssseeererreeeteeetsereeeseeasaeereeeeeseeees

Semiconductor

Lead

Layouts

++++++ssssssereeeeeeeeeeteeeeseeeseeeees

WARNING

ISOLATION

TRANSFORMER

SHOULD

USED

DURING

ANY

SERVICE

AVOID

POSSIBLE

SHOCK

HAZARD,

BECAUSE

LIVE

CHASSIS.

THE

CHASSIS

THIS

RECEIVER

DIRECTLY

CON-

;

NECTED

THE

POWER

LINE.

SAFETY-RELATED

COMPONENT

WARNING

COMPONENTS

IDENTIFIED

SHADING

AND

MARK

THE

SCHEMATIC

DIAGRAMS,

EXPLODED

VIEWS

AND

THE

PARTS

LIST

ARE

CRITICAL

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

SHOWN

THIS

MANUAL

SUPPLEMENTS

PUBLISHED

SONY.

CDP-997

(CHECKING

METHODS

LASER

DIODE

AND

FOCUS

SAFETY

CHECK-OUT

OPERATIONS)

Tum

the

power

switch

with

the

condition

the

disc

table

closed

without

disc.

And

then

watch

the

objective

lens

check

whether

the

operation

can

performed

not,

the

below

figure

shows.

After

correcting

the

original

service

problem,

perform

the

following

safety

checks

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.

Front

panel

side

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.

The

laser

beams

diffused

can

observed.

commercial

leakage

tester,

such

the

The

and

down

movements

the

objective

lens

(Twice)

Simpson

229

RCA

WT-540A.

the

manufacturers’

instructions

use

these

instru-

ments.

battery-operated

milliammeter.

The

Data

NOTES

HANDLING

THE

OPTICAL

PICK-

acta

245

digital

multimeter

suitable

for

BLOCK

BASE

UNIT

Job.

Measuring

the

voltage

drop

across

resistor

The

laser

diode

the

optical

pick-up

block

may

means

VOM

battery-operated

volt-

suffer

electrostatic

breakdown

because

the

poten-

meter.

The

“‘Jimit”

indication

0.75V,

tial

difference

generated

the

charged

electrostatic

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

multimeters

that

have

range

are

suitable.

(See

Fig.

load,

etc.

clothing

and

the

human

body.

During

repair,

pay

attention

electrostatic

break-

down

and

also

use

the

procedure

the

printed

matter

which

included

the

repair

parts.

The

flexible

board

easily

damaged

and

should

handled

with

care.

Exposed

Metal

Parts

Set

NOTES

LASER

DIODE

EMISSION

CHECK

The

laser

beam

this

model

concentrated

focused

the

disc

reflective

surface

the

objective

lens

the

optical

pick-up

block.

Therefore,

when

checking

the

laser

diode

emission,

observe

from

than

30cm

away

from

the

mer

objective

lens.

Earth

Ground

Fig.

Using

voltmeter

check

leakage.

CDP-997

1-1.

IDENTIFYING

THE

PARTS

Front

Panel

SECTION

This

section

extracted

from

GEN

instruction

manual.

[4]

[5]

[6]

[7]

[8]

[9}

[10]

[14]

12]

[13]

[14]

[15]

(30

-—

28]

[27]

[17]

[16

19}

[18]

26|

[25]

[24]

[23]

[22]

[21]

[20

POWER

switch

Disc

tray

OPEN/CLOSE

button

PLAY

MODE

buttons

CONTINUE

button

and

indicator

SHUFFLE

button

and

indicator

PROGRAM

button

and

indicator

(custom)

INDEX

button

and

indicator

PEAK

button

ERASE

(memory

erase)

button

FILE

(custom

file)

button

DSP/1-20

button

and

indicator

FILE

RECALL

button

A.SPACE/A.CUE

button

Numeric

buttons/DSP

SELECT

button

(over

20)/FLAT

button

CHECK

(program

check)

button

EFFECT

level

CLEAR

(program

clear)

button

alely|=)

falzlelselelelelslolo)

16)

LINE

OUT/PHONE

LEVEL

control

PHONES

jack

LEVEL

FILE

button

I< PI

AMS*

buttons

(manual

search)

DISC

MEMO

buttons

(stop)

button

EDIT/TIME

FADE

button

23,

(pause)

button

and

indicator

FADER

(fade

in/fade

out)

button

REPEAT

button

(play)

button

and

indicator

TIME/MEMO

button

MUSIC

SCAN

button

Display

window

Remote

sensor

TIMER

switch

AMS

the

abbreviation

Automatic

Music

Sensor.

CDP-997

Remote

Commander

_@=

OPEN/CLOSE

button

FILE

RECALL

button

DISPLAY

MODE

button

MUSIC

SCAN

button

[5]

Numeric

buttons

[6]

MEMO

INPUT

button

FILE

(custom

file)

button

ERASE

button

DSP

SELECT

button

DSP

FLAT

button

LEVEL

FILE

button

FADER

(fade

in/fade

out)

button

[14]

<4<q

(manual

search)

buttons

LINE

OUT

LEVEL

(line

out/headphone

level)

buttons

»P

SLOW

(low

speed

manual

search)

buttons

4—

—&

INDEX

buttons

PPI

AMS

buttons

(stop)

button

(pause)

button

(play)

button

SPACE

(auto

space)/A.

CUE

(auto

cue)

button

REPEAT

button

(repeat/A

—

repeat

clear)

button

TIME

button

>20

(over

20)

button

CLEAR

button

CHECK

button

(22)

PLAY

MODE

buttons

CONTINUE

button

SHUFFLE

button

PROGRAM

button

(custom).

INDEX

button

[2]

[3]

[4]

[>]

[@]

(3)

fe)

[&)

[>]

[e]

is)

(4)

(ss)

[S} [3]

[3]

EBisiels)

Glass)

Buttons

with

orange

letters

(A,

.......

)

are

for

entering

disc

memo

(page

26).

Bet

lel

Pal

CDP-997

SECTION

DISASSEMBLY

order

remove

the

front

panel

block

when

the

power

supply

does

not

turn

on,

rotate

the

cam

with

minus

screw-driver

the

figure

shows,

and

the

part

will

moved.

Then

pull

out

the

part

your

hand

remove

the

panel

the

figure

shows.

After

that

take

out

the

front

panel

block.

Bottom

chassis

Rotate

the

cam

with

screwdriver

the

direction

the

arrow.

Remove

the

panel

the

direction

the

arrow.

Pull

out

the

disc

table.

Wet

ae,

10342

(CXD2561M-1)

No.

Symbol

I/O

Description

SECTION

FUNCTIONS

Digital

power

supply

Test

Normally

fixed

“L”

Re-synchronizes

rising

edge

1€341

(CXD2560M)

[Pinwe.

[Symbol]

Description

[vs

SYSM

ATT

CTL

|MCLK

INIT

Re-synchronizes

rising

edge

this

signal.

BCK

input

LRCK

input

CDP-997

Power

supply

(GND)

System

mute

input

“H”:

active

CTL

“L”:

ATT

data

input

CTL

“H”:

EMP

input

CTL

“L”:

shift

clock

input

CTL

“H”:

FS32

input

CTL

“L”:

latch

clock

input

CTL

“H”:

FS48

input

Pull-down

within

“H”:

direct

input

mode.

“L”:

serial

transfer

mode.

Test

Normally

fixed

“L”

Master

clock

input

(f=512

Fs)

Power

supply

(+5V)

BCK

output

Lch

data

output

INTE

this

signal.

[eRe

DATAR

Rch

data

input

DATAL

Lch

data

input

LATCH

[pve

[Digit

GND

Crystal

oscillation

input

(22.5

MHz)

Substrait

VSUB

Connected

GND

Pie

PRG)

Reh

PLM

output

Ginphase)

[

RIG)

Reh

PLM

output

nia)

[RO@)

Reh

PLM

oupur2

(phase)

R2)

Reb

PLM

oupur

(aniphasey

[17

L2(-)

Leh

PLM

output

(antiphase)

20°.

Leh

PLM

output

(in-phase)

Lch

PLM

output

(antiphase)

Analog

GND

FL)

Leh

PLM

ouput

Gass)

[28

[avoot

[Aratog

powersupnly

[

ERCKO

FLGL

Leh

mute

flag

output

[24

ruGR

[Reh

mute

Mag

oust

Rch

data

output

LRCK

output

CDP-997

1C901

(CXD2701Q)

[PinNo.

Symbot_|

Description

Input

data

format

setting

pin.

Data

position

changed

according

“H”

and

“L”.

Input

data

format

setting

pin.

“H”:

MSB

first,

“L”:

LSB

first

Serial

data

input

sampling

channels.

Data

format:

two’s

complement

Serial

bit

clock

input

serial

input

data

Sampling

frequency

clock

input

serial

I/O.

Transfers

Lch

data

“H”

and

Rch

data

“L”,

GND

Serial

data

output

pin.

Data

format:

two’s

complement.

Bit

clock

output

pin.

64-slot.

Sampling

frequency

clock

output

serial

data

Output

data

bit

number

setting

BS2=H,

BS1=H

24-bit

BS2=H,

BS1=L

20-bit

BS2=L,

BS1=H

18-bit

BS2=L,

BS1=L

16-bit

Output

data

format

setting

pin.

“H”:

MSB

first,

“L”:

LSB

first

GND

System

clock

output

pin.

fsck=fxt=512

Output

crystal

oscillation

circuit

Input

crystal

oscillation

circuit.

fxt=512

[

voor

[asvpowerpin

20”

[cas

Baema

DRAM

column

ares

stobe

cuiuipia”

Wo.

[v0

exemal

DRAM

dea

inpuvouput

02S

1/01

1/O

External

DRAM

data

input/output

1/O1

External

DRAM

write

enable

output

pin.

“L”:

active

External

DRAM

address

output

RAS

External

DRAM

low

address

strobe

output

External

DRAM

address

output

[a2

External

DRAM

address

output

Test

pin.

Normally

fixed

GND.

Test

+5V

power

Serial

data

input

where

commands,

coefficient,

and

controls,

etc.

are

transferred

from

microprocessor.

see

1C301

(M38063M6)

No.

_[pspvor

[1]

GAINI

CNIN

VOLLED

VOLDWN

VOLUP

LODOUT

LODIN

LDON

Symbol

CDP-997

DSP

effect

level

input

Volume

level

input

Volume

LED

Remote

control

volume

down

output

Remote

control

volume

output

Loading-out

output

Loading-in

output

IC901

(CXD2701)

data

latch

pulse

output

1C901

(CXD2701)

data

clock

output

IC901

(CXD2701)

data

output

connection

Analog

gain

control

Analog

gain

control]

Analog

gain

control

Track

jump

number

count

signal

input

Laser

diode

ON/OFF

output

FOK

GFS

SENSE

XIN

GND

l/O

1/0

FOK

monitor

input

GFS

monitor

input

SENSE

input

IC331

(CXD2500)

and

IC101

(CXD2501)

connection

Subcode

read

out

clock

output

connection

Subcode

data

input

SCOR

input

connection

GND

Reset

input

Test

mode

Test

mode

for

electrical

adjustment

Clock

input

Clock

output

GND

64K-SRAM

data

input/output

64K-SRAM

data

input/output

64K-SRAM

data

input/output

64K-SRAM

data

input/output

64K-SRAM

data

input/output

1/0

P40

64K-SRAM

data

input/output

64K-SRAM

data

input/output

64K-SRAM

data

input/output

CDP-997

Pin No.

Symbol

Description

connection

64K-SRAM

write

enable

output

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

64K-SRAM

address

Command

output

pulse

arnt

SACK

MREQ

CMD3

CMD2

CMD1

CMDO

XLT

‘Oo

Data

clock

output

IC331

(CXD2500)

and

IC101

(CXD2501)

1/O_|

Master/file

command

select

input/output

Oj}

Command

acknowledge

output

Command

request

input

I/O

Master

microprocessor

interface

1/O_

Master

microprocessor

interface

Master

microprocessor

interface

1/0

1/O

Master

microprocessor

interface

Data

latch

pulse

output

IC331

(CXD2500)

and

IC10}

(CXD2501)

DATA

O__|

Data

output

IC331

(CXD2500)

and

IC101

(CXD2501)

Coefficient

data

read

out

clock

output

IC101

(CXD2501)

Direct

control

(not

used)

IC101

(CXD2501)

Attenuation

data

output

IC341

(CXD2560)

Attenuation

data

clock

output

IC341

(CXD2560)

Attenuation

data

latch

pulse

output

IC341

(CXD2560)

+5V

Audio

mute

output

Digital

mute

output

connection

in-switch

input

out-switch

input

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