Zenith DVC2200 Manuale utente

zenith

SERVICE

MANUAL

Product

Type:

Chassis:

Manual

Series:

Manual

Part

Model

Line:

Product

Year:

DVD

PLAYER

DVC

VR161

923-03437

2000

Model

Series:

DVC2200

DVC2250

CONTENTS

Customer

Controls

Exploded

Views

Circuit

Diagrams

P.C.Board

Layout

Published

Technical

Publications

Zenith

Electronics

Corporation

201

James

Record

Road

Huntsville,

Alabama

35824-1513

©Copyright

April

2000

Zenith

Electronics

Corporation

Printed

U.S.A.

4.5k

PRODUCT

SAFETY

SERVICING

GUIDELINES

FOR

AUDIO-VIDEO

PRODUCTS

IMPORTANT

SAFETY

NOTICE

This

manual

was

prepared

for

use

only

properly

trained

audio-visual

service

technicians.

When

servicing

this

product,

under

circumstances

should

the

original

design

modified

altered

without

permission

from

Zenith

Electronics

Corporation.

All

components

should

replaced

only

with

types

identical

those

the

original

circuit

and

their

physical

location,

wiring

and

lead

dress

must

conform

original

layout

upon

completion

repairs.

Special

components

are

also

used

prevent

x-radiation,

shock

and

fire

hazard.

These

components

are

indicated

the

letter

“x”

included

their

component

designators

and

are

required

maintain

safe

performance.

deviations

are

allowed

without

prior

approval

Zenith

Electronics

Corporation.

Circuit

diagrams

may

occasionally

differ

from

the

actual

circuit

used.

This

way,

implementation

the

latest

safety

and

performance

improvement

changes

into

the

set

not

delayed

unti!

the

new

service

literature

printed.

CAUTION:

not

attempt

modify

this

product

any

way.

Never

perform

customized

installations

without

manufacturer’s

approval.

Unauthorized

modifications

will

not

only

void

the

warranty,

but

may

lead

property

damage

user

injury.

Service

work

should

performed

only

after

you

are

thoroughly

familiar

with

these

safety

checks

and

servicing

guidelines.

GRAPHIC

SYMBOLS

The

exclamation

point

within

equilateral

triangle

intended

alert

the

service

personnel

important

safety

information

the

service

literature.

The

lightning

flash

with

arrowhead

symbol

within

equilateral

triangle

intended

alert

the

service

personnel

the

presence

noninsulated

“dangerous

voltage”

that

may

sufficient

magnitude

constitute

risk

electric

shock.

The

pictorial

representation

fuse

and

its

rating

within

equilateral

triangle

intended

convey

the

service

personnel

the

following

fuse

replacement

caution

notice:

CAUTION:

FOR

CONTINUED

PROTECTION

AGAINST

RISK

FIRE,

REPLACE

ALL

FUSES

WITH

THE

SAME

TYPE

AND

RATING

MARKED

NEAR

EACH

FUSE.

SERVICE

INFORMATION

While

servicing,

use

isolation

transformer

for

protection

from

line

shock.

After

the

original

service

problem

has

been

corrected,

make

check

the

following:

FIRE

AND

SHOCK

HAZARD

sure

that

all

components

are

positioned

avoid

possibility

adjacent

component

shorts.

This

especially

important

items

transported

and

from

the

repair

shop.

Verify

that

all

protective

devices

such

insulators,

barriers,

covers,

shields,

strain

reliefs,

power

supply

cords,

and

other

hardware

have been

reinstalled

per

the

original

design.

sure

that

the

safety

purpose

the

polarized

line

plug

has

not

been

defeated.

Soldering

must

inspected

discover

possible

cold

solder

joints,

solder

splashes,

sharp

solder

points.

certain

remove

all

loose

foreign

par-

ticles.

Check

for

physical

evidence

damage

deterioration

parts

and

compo-

nents,

for

frayed

leads

damaged

insulation

(including

the

cord),

and

replace

necessary.

lead

component

should

touch

receiving

tube

resistor

rated

watt

more.

Lead

tension

around

protruding

metal

surfaces

must

avoided.

After

re-assembly

the

set,

always

perform

leakage

test

all

ex-

posed

metallic

parts

the

cabinet

(the

channel

selector

knobs,

antenna

terminals,

handle

and

screws)

sure

that

set

safe

operate

without

danger

electrical

shock.

NOT USE

LINE

ISOLATION

TRANSFORMER

DURING

THIS

TEST.

Use

voltmeter

having

5000

ohms

per

volt

sensitivity

the

following

manner:

Connect

1500

ohm,

watt

resistor,

paralleled

.15

mfd

150V

type

capacitor

between

known

good

earth

ground

water

pipe,

conduit,

etc.)

and

the

exposed

metallic

parts,

one

time.

Measure

the

voltage

across

the

combination

1500

ohm

resistor

and

.15

mfd

capacitor.

Reverse

the

plug

using

non-polarized

adaptor

and

repeat

voltage

measurements

for

each

exposed

metallic

part.

Voltage

measured

must

not

exceed

0.75

volts

RMS.

This

corresponds

0.5

milliamp

AC.

Any

value

exceeding

this

limit

constitutes

potential

shock

hazard

and

must

corrected

immediately.

CM151

A.C.

Voltmeter

0.16uF

Good

Earth

Ground

Place

this

probe

such

the

Water

ies

each

exposed

Pipe,

Conduit,

etc.

1600

OHM

metal

part.

WATT

X-RADIATION

sure

procedures

and

instructions

all

service

personnel

cover

the

subject

x-radiation.

The

only

potential

source

x-rays

current

receivers

the

picture

tube.

However,

this

tube

does

not

emit

x-rays

when

the

factory-specified

level.

The

proper

value

given

the

applicable

schematic.

Operation

higher

voltages

may

cause

failure

the

picture

tube

high-voltage

supply

and,

under

certain

circumstances

may

produce

radiation

excess

desirable

levels.

Only

factory-specified

CRT

anode

connectors

must

used.

3. It

essential

that

the

service

personnel

have

available

accurate

and

reliable

high-voltage

meter.

When

the

high-voltage

circuitry

operating

properly,

there

possibility

x-radiation

problem.

Every

time

color

chassis

serviced,

the

brightness

should

run

and

down

while

monitoring

the

high

voltage

with

meter,

certain

that

the

high

voltage

does

not

exceed

the

specified

value

and

that

regulating

correctly.

When

troubleshooting

and

making

test

measurements

product

with

problem

excessively

high

voltage,

avoid

being

unnecessarily

the

picture

tube

and

the

high

voltage

power

supply.

not

operate

the

product

longer

than

necessary

locate

the

cause

excessive

voltage.

Refer

HV,

B+,

and

shutdown

adjustment

procedures

described

the

appropriate

schematics

and

diagrams

(where

used).

IMPLOSION

All

direct

view

picture

tubes

are

equipped

with

integral

implosion

protection

system;

take

care

avoid

damage

during

installation.

Use

only

the

recommended

factory

replacement

tubes.

TIPS

PROPER

INSTALLATION

Never

install

any

receiver

closed-in

recess,

cubbyhole,

closely

fitting

shelf

space

over,

to,

heat

duct,

the

path

heated

air

flow.

Avoid

conditions

high

humidity

such

as:

outdoor

patio

installations

where

dew

factor,

near

steam

radiators

where

steam

leakage

factor,

etc.

Avoid

placement

where

draperies

may

obstruct

venting.

The

customer

should

also

avoid

the

use

decorative

scarves

other

coverings

that

might

obstruct

ventilation.

Wall-

and

shelf-mounted

installations

using

commercial

mounting

kit

must

the

factory-approved

mounting

instructions.

product

mounted

shelf

platform

must

retain

its

original

feet

(or

the

equivalent

thickness

spacers)

provide

adequate

air

flow

across

the

bottom.

Bolts

screws

used

for

fasteners

must

not

touch

any

parts

wiring.

Perform

leakage

tests

customized

installations.

Caution

customers

against

mounting

product

sloping

shelf

tilted

position,

unless

the

receiver

properly

secured.

product

roll-about

cart

should

stable

its.

mounting

the

cart.

Caution

the

customer

the

hazards

trying

roll

cart

with

small

casters

across

thresholds

deep

pile

carpets.

Caution

customers

against

using

cart

stand

that

has

not

been

listed

Underwriters

Laboratories,

Inc.

for

use

with

its

specific

model

television

receiver

generically

approved

for

use

with

TVs

the

same

larger

screen

size.

Caution

customers

against

using

extension

cords.

Explain

that

forest

extensions,

sprouting

from

single

outlet,

can

lead

disastrous

consequences

home

and

family.

CN-001C€

SAFETY

CONTENTS

SECTION

....SUMMARY

SECTION

....CABINET

MAIN

CHASSIS

SECTION

....ELECTRICAL

SECTION

...

.MECHANISM

SECTION

SUMMARY

CONTENTS

PRODUCT

SAFETY

SERVICING

GUIDELINES

FOR

VIDEO

PRODUCTS

...-scsccucseene

FIC

SERVICING

PRECAUTIONS

04.

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1-4

«General

Servicing

Precautions

eInsulation

Checking

Prodedure

*Electrostatically

Sensitive

Devices

SPECIFICATIONS:

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CUSTOMER CONTROLS

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1-6

SERVICING

PRECAUTIONS

CAUTION

Before

servicing

the

DVD

covered

this

service

data

and

its

supplements

and

ADDENDUMS,

read

and

fol-

low

the

SAFETY

PRECAUTIONS.

NOTE

unforeseen

cir-

cumstances

create

conflict

between

the

following

servicing

precautions

and

any

the

safety

precautions

this

publi-

cations,

always

the

safety

precautions.

Remember

Safety

First:

General

Servicing

Precautions

Always

unplug

the

DVD

power

cord

from

the

power

source

before:

(1)

Removing

reinstalling

any

component,

circuit

board,

module,

any

other

assembly.

(2)

Disconnection

reconnecting

any

internal

electrical

plug

other

electrical

connection.

(3)

Connecting

test

substitute

parallel

with

elec-

trolytic

capacitor.

Caution

wrong

part

substitution

incorrect

polarity

installation

electrolytic

capacitors

may

result

explosion

hazard.

not

spray

chemicals

near

this

DVD

any

its

assemblies.

Unless

specified

otherwise

this

service

data,

clean

electrical

contacts

applying

appropriate

contact

cleaning

solution

the

contacts

with

pipe

cleaner,

cotton-tipped

swab,

comparable

soft

applicator.

Unless

specified

otherwise

this

service

data,

lubrication

contacts

not

required.

not

defeat

any

plug/socket

B+

voltage

interlocks

with

whitch

instruments

covered

this

service

manual

might

equipped.

5.Do

not

apply

power

this

DVD

and/or

any

its

electrical

assemblies

unless

all

solid-state

device

heat

sinks

are

cerrectly

installed.

Always

connect

test

instrument

ground

lead

the

appropriate

ground

before

connection

the

test

instrument

positive

lead.

Always

remove

the

test

instrument

ground

lead

last.

Insulation

Checking

Procedure

Disconnect

the

attachment

plug

from

the

outlet

and

turn

the

power

on.

Connect

insulation

resistance

meter(500V)

the

blades

the

attachment

plug.

The

insulation

resis-

tance

between

each

blade

the

attachment

plug

and

acces-

sible

conductive

parts

(Note

should

than

1M-

ohm.

Note

Accessible

Conductive

Parts

including

Metal

pan-

els,

Input

terminals,

Earphone

jacks,

etc.

Electrostatically

Sensitive

(ES)

Devices

Some

semiconductor

(solid

state)

devices

can

damaged

easily

static

electricity.

Such

components

commonly

are

called

Electrostatically

Sensitive

(ES)

Devices.

Examples

typical

devices

are

integrated

circuits

and

some

field

effect

transistors

and

semiconductor

chip

components.

The

following

techniques

should

used

help

reduce

the

incidence

component

damage

caused

static

eleciricity.

Immediately

before

handling

any

semiconductor

compo-

nent

semiconductor-equipped

assembly,

drain

off

any

electrostatic

charge

your

body

touching

known

earth

ground.

Alternatively,

obtain

and

wear

commer-

cially

available

discharging

wrist

strap

device,

which

should

removed

for

potential

shock

reasons

prior

applying

power

the

unit

under

test.

After

removing

electrical

assembly

equipped

with

devices,

place

the

assembly

conductive

surface

such

aluminum

foil,

prevent

electrostatic

charge

buildup

exposure

the

assembly.

Use

only

GROUNDED-tip

soldering

iron

solder

unsolder

devices.

4.Use

only

anti-static

solder

removal

device.

Some

solder

removal

devices

not

classified

“anti-static”

can

generate

electrical

charges

sufficient

damage

devices.

5.Do

not

use

freon-propelled

chemicals.

These

can

generate

electrical

charge

sufficient

damage

devices.

not

remove

replacement

device

from

its

protec

tive

package

until

immediately

before

you

are

ready

install

it.

(Most

replacement

devices

are

packaged

with

leads

electrically

shorted

together

conductive

foam,

aluminum

foil,

comparable

conductive

material).

Immediately

before

removing

the

protective

material

from

the

leads

replacement

device,

touch

the

protective

material

the

chassis

circuit

assembly

into

which

the

device

will

installed.

Caution

sure

power

applied

the

chassis

circuit,

and

observe

all

other

safety

precautions.

Minimize

bodily

motions

when

handling

unpackaged

replacement

devices.

(Normally

harmless

motion

such

the

brushing

together

your

clothes

fabric

the

lifting

your

foot

from

carpeted

floor

can

generate

static

elec-

tricity

sufficient

damage

device.)

DVD

VIDEO

PLAYER

Power

supply

Power

consumtion

Mass

External

dimensions

Signal

system

Laser

Frequency

range

(digital

audio)

Signal-to-noise

ratio

(digital

audio)

Audio

dynamic

range

(digital

audio)

Harmonic

distortion(digital

audio)

Wow

and

flutter

Operations

OUTPUTS

Video

outputs

video

outputs

Component

video

output

Audio

output(digital

audio)

Audio

output(optical

audio)

Audio

output(analog

audio)

SPECIFICATIONS

120V,

60Hz

16W

3.2kg(7.1lbs)

430

215

NTSC

Semiconductor

laser,

wavelength

650nm

4Hz

20kHz

than

100dB

(EIAJ)

than

95dB

(EIAu)

0.008%

Below

measurable

level

(less

than

+0.001%(W.PEAK))

(ElAJ)

Temperature

5°C(41°F)

35°C(95°F),

Operation

status

Horizontal

1.0V(p-p),

75Q,

negative

sync.,

RCA

jack

(Y)1.0V(p-p),

75Q,

negative

sync.,Mini

DIN

4-pin

75Q

(Y)1.0V(p-p),

75Q,negative

sync.,

RCA

jack

(Pb)/(Pr)

0.7V(p-p),

75Q

0.5V(p-p),

75Q,

RCA

jack

Optical

connector

2.0Vrms

(1kHz,

0dB),

330Q,

RCA

jack

(L,

*Designs

and

specifications

are

subject

change

without

notice.

“Weight

and

dimensions

shown

are

approximate.

LOCATION

CUSTOMER

CONTROLS

POWER

INDICATOR

SELECT/ENTER

BUTTON

STOP

BUTTON

DISC

TRAY

PAUSE/STEP

BUTTON

PLAY

BUTTON

DISPLAY

WINDOW

POWER

INDICATOR

REMOTE

SENSOR

OPEN/CLOSE

BUTTON

[DISPLAY

WINDOW

SKIP/SCAN

BUTTONS

OPERATING

STATUS

INDICATOR

DVD

INDICATOR

ARROW

BUTTONS

BUTTON

PROGRAM

INDICATOR

RANDOM

INDICATOR

REPEAT

PLAYBACK

MODE

INDICATORS

CHP/TRK

eeece

eocce,

“coves

‘cecce

TOTAL

PLAYING

TIME/ELAPSED

TIME

INDICATORS

CHAPTER/TRACK

NUMBER

INDICATOR

ANGLE

ICON

INDICATOR

TITLE

NUMBER

INDICATOR

REAR

PANEL

COMPONENT

VIDEO

OUT

JACKS

COAXIAL

DIGITAL

AUDIO

OUT

JACK

POWER

CORD

AUDIO

OUT(L/R)

JACKS

OPTICAL

DIGITAL

AUDIO

OUT

JACK

S-VIDEO

OUT

JACK

VIDEO

OUT

JACK

DOLBY

DIGITAL

AUDIO

OUT

JACKS

1-6

REMOTE

CONTROL

(DVC2200)

POWER

button

SETUP

button

ZOOM

button

MARKER

button

DISPLAY

button

PLAY

button

STOP

button

SLOW

button

CLEAR

button

AUDIO

button

SUBTITLE

button

REPEAT

button

PROGRAM

button

(DVC2250)

POWER

button

PLAY

button

REV

SKIP

button

PAUSE/STEP

button

SELECT/ENTER

button

SETUP

button

DISPLAY

button

NUMBER

button

CLEAR

button

ANGLE

button

SUBTITLE

button

AUDIO

button

ILLUMINATE

button

REPEAT

button

OPEN/CLOSE

button

TITLE

button

RETURN

button

SELECT/ENTER

button

PAUSE/SETUP

button

SCAN

button

SKIP

button

SOUND

buttons

ANGLE

button

a-b

button

RANDOM

button

DVD/VCR/CATV/TV

Selector

Switch

FWD

button

STOP

button

OPEN/CLOSE

button

ARROW

(

volume/channet)

buttons

RETURN

neu)

button

SOUNDwute)

button

PROGRAM

button

TITLE

buttons

MARKER-SEARCH

button

ZOOM

button

RANDOM

button

A-B

button

FWD/REV

SLOW/SCAN

Shuttle

Ring

DISASSEMBLY

CABINET

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CABINET

MAIN

CHASSIS

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DISASSEMBLY

CAUTION

BEFORE

STARTING

SERVICING

Electronic

parts

are

susceptible

static

electricity

and

may

easily

damaged,

not

forget

take

proper

grounding

treatment

required.

Many

screws

are

used

inside

the

unit.

prevent

missing,

dropping,

etc.

the

screws,

always

use

magnetized

screw

driver

servicing.

Several

kinds

screws

are

used

and

some

them

need

special

cautions.

That

is,

take

care

the

tapping

screws

securing

molded

patrs

and

fine

pitch

screws

used

secure

metal

parts.

they

are

used

improperly,

the

screw

holes

will

easily

damaged

and

the

parts

can

not

fixed.

CABINET

DISASSEMBLY

Front

Panel

Top

Case

Eject

the

disc

tray.

(See

Fig.

2-2)

Release

screws

(A).

(See

Fig.

2-1)

Remove

the

tray

door.

(See

Fig.

2-2)

Lift

the

top

case

with

holding

the

back

it,

Release

screws

(B).

and

remove

the

direction

the

arrow

Pull

the

front

pane!

toward

you

while

pressing

stoppers

disengage,

and

remove

the

front

panel.

(See

Fig.

2-3)

Tray

Door

1.Eject

the

disc

tray.

2.Lift

the

tray

door

the

direction

the

arrow.

Tray

Door

2-2

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