Hitachi CK-200 Manual de usuario

CAUTION:

Before

servicing

this

chassis,

important

that

the

“Product

Safety

Notices’”

this

Service

Manual.

service

technician

read

the

‘’Safety

Precaution”

and

This

service

manaul

shows

only

essential

items.

Our

compiete

service

manual

inciuding

“‘alignment

proce-

dure’,

‘printed

wiring

boards”

and

‘“‘technical

information”

are

issued

manual

No.

615.

CONTENTS

SPECIE

IGA

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hak

TECHNICAL

CAUTIONS

elacats

woe

key

CHASSIS’SERVICE-INFORMATION.

«0.5.44

255.

DISASSEMBCING

PAVs

BOARDS

keke

LOCATION.

OFTADSUS

IMENT

IPOIN-G

.atayee

VULNS

DAG

een

mee

PRINGCED:

WIRLNGS:

BOARD

erence

eee

ate

BASIC.

CRROULP

DIAGRAM

ely

ete

ele

REPLACEMENT

PARTS

6..

g.ck

etek

SPECIFICATIONS

ANTENNA

INPUT

IMPEDANCE

......

30002

and

7502

CONVERGENCE

................

Self

convergence

TELEVISION

R-F

FREQUENCY

RANGE

POC

irl

ieee

wee

OPOST

aga

All

VHF:-Channels:

sees

BAMHZ:

8B8EMHz

PICTURE

AUBE

Seber:

LAE

eee

EOUAY

B22

174MHz

216MHz

SOUNDSOUTPU

tie

200mW,

400H

All

UHF

Channels)

2...

470MHz

890MHz

CBE

MICE

Race

tunts

ely

Give

Mee

Lom

ease

INTERMEDIATE

FREQUENCIES

TRANSISFORS

SEES

Tye

Picture

1.F

Carrier

Frequency...

soe

457

oMHz

Denis

eek

ase

fia

Sound:I-F

Carrier

Frequency

47.

25MAz

HOS

either

tee

PON

Fees

Sound:

|-PaPreauency

cir

DIMENSIONS

“(Wye

bree

Sue

30.4em

Color

Sub-Carrter:

Frequency...

SBMHZ

Lye

Fat

Beals

oem

POWERSINPUT

are

AGC

120V-60HZ;

12V

(DES

Ses

be ee

LOM

POWER:-RATING

Vo.

oreo

ACT

WEIGH

HES

Shoe

eee

ata

Appreaiokg

DC:

15W

CK-200

SAFETY

PRECAUTIONS

NOTICE:

Comply

with

all

cautions

and

safety

notes

located

inside

the

cabinet

and

the

chassis

picture

tube.

WARNING:

Since

the

chassis

this

receiver

connected

one

side

power

supply

during

operation,

whenever

the

receiver

plugged

in,

service

should

not

attempted

anyone

unfamiliar

with

the

precautions

necessary

when

working

this

type

receiver.

The

following

precautions

should

observed:

not

install,

remove,

handle

the

picture

tube

any

manner

unless

shatterproof

goggles

are

worn.

People

not

equipped

should

kept

away

while

picture

tubes

are

handled.

Keep

picture

tube

awya

from

the

body

while

handling.

When

replacing

chassis

the

receiver,

all

the

pro-

tective

devices

must

put

back

place,

such

barriers,

non-metallic

knobs,

adjustment

and

compartment

cover-

shields,

isolation

resistor-capacitor,

etc.

When

service

required,

observe

the

original

jead

dress.

Extra

precaution

should

taken

assure

correct

lead

dress

the

high

voltage

circuitry

area.

Always

use

the

manufacturer's

replacement

components.

Especially

critical

components

indicated

the

circuit

diagram

should

not

replaced

other

manufacturer's.

Furthermore

where

short

circuit

has

occurred,

replace

those

components

that

indicate

evidence

overheating.

Before

returning

serviced

receiver

the

customer,

the

service

technician

must

thoroughly

test

the

unit

certain

that

completely

safe

operate

without

danger

electrical

shock,

and

sure

that

protective

device

built

into

the

receiver

the

manufacturer

has

become

defective,

inadvertently

defeated

during

servicing.

Therefore,

the

following

checks

should

performed

for

the

continued

protection

the

customer

and

service

technician.

Leakage

Current

Cold

Check

With

the

plug

removed

from

the

120V

60Hz

source,

place

jumper

across

the

two

plug

prongs.

Turn

the

power

switch

on.

Using

insulation

tester

(DC

500V),

connect

one

lead

the

jumpered

plug

and

touch

the

other

lead

each

exposed

metal

part

(antennas,

screwheads,

metal

overlays,

control

shafts,

etc.},

particularly

any

exposed

metal

part

having

return

Path

the

chassis.

Exposed

metal

parts

having

return

Path

the

chassis

should

have

minimum

resistor

reading

0.3M2

and

maximum

resistor

reading

5MoQ2.

Any

resistor

value

below

above

this

range

indicates

abnormality

which

requires

corrective

action.

Exposed

metal

parts

not

having

return

path

the

chassis

will

indicate

open

circuit.

Leakage

Current

Hot

Check

Plug

the

line

cord

directly

into

120V

60Hz

outlet

(do

not

use

isolation

transformer

for

this

check).

Turn

the

power

swtich

on.

Using

‘leakage

Current

Tester

(Simpson

Model

229

equivalent)’’,

mea-

sure

for

current

from

al!

exposed

metal

parts

the

cabinet

(antennas,

screwheads,

metal

overlays,

control

shaft,

etc.),

particularly

any

exposed

meta!

part

having

return

path

the

chassis,

known

earth

ground

{water

pipe,

conduit,

etc.).

Any

current

measured

must

not

exceed

0.5mA.

(READING

SHOULD

NOT

ABOVE

O5mA}

LEAKAGE

CURRENT

TESTER

DEVICE

UNDER

TEST

ALL

EXPOSED

METAL

SURFACES

2-WIRE

CORO

ALSO

TEST

WITH

PLUG

REVERSED

(USING

ADAPTER

PLUG

REQUIRED)

EAR

GROUND

Leakage

Test

ANY

MEASUREMENTS

NOT

WITHIN

THE

LIMITS

OUTLINED

ABOVE

ARE

INDICATIVE

POTEN-

TIAL

SHOCK

HAZARD

AND

MUST

CORRECTED

BEFORE

RETURNING

THE

RECEIVER

THE

CUS-

TOMER.

High

Voltage

This

receiver

provided

with

hold

down

circuit

for

clearly

indicating

that

voltage

has

increased

excess

predetermined

value.

Comply

with

all

notes

described

this

Service

Manual

regarding

this

hold

donw

circuit

when

servicing,

that

this

hold

down

circuit

may

correctly

operated.

Serviceman

warning

With

minimum

Brightness

and

Contrast,

operating

hix

voltage

this

receiver

lower

than

16.0KV.

case

any

component

having

influence

high

voltage

replaced,

confirm

that

high

voltage

with

minimum

Brightness

and

Contrast

lower

than

16.0KV.

rtp

is,

cian

ast

ses

Adee

Cahir

has

acne

Stik

WMA

Bia

tart

ARE

ESP

Bieta

Pon

taht

Late

Ache

Plas

SEE

Sake

ae:

ATEN

sca

oer

aia

aie

MERTON

carb

Heep

Maal

naitaped

laure

rate

tetenbime

“ata

ITAA

RCTS

REA

Foren

Aten

anal

Fite

Weal

mere

CK-200

measure

H.V.

use

high

impedance

H.V.

meter.

Connect

(—)

chassis

earth

and

(+)

the

CRT

anode

button.

(See

the

following

connection

diagram).

PRODUCT

SAFETY

NOTICE

Many

electrical

and

mechanical

parts

HITACHI

television

receiver

have

special

safetyrelated

character-

istics.

These

are

often

not

evident

from

visual

inspection

nor

can

the

protection

afforded

them

necessarily

obtained

using

replacement

components

rated

for

higher

voltage,

wattage,

etc.

Replacement

parts

which

have

these

special

safety

characteristics

are

identified

this

Service

Manual.

Electrical

components

having

such

features

are

identified

marking

with

the

schematics

and

the

parts

list

this

Service

Manual.

The

use

substitute

replacement

component

which

does

not

have

the

same

safety

characteristics

the

HITACHI

recommended

replacement

one,

shown

parts

list

this

Service

Manual,

may

create

shock,

fire,

X-radiation,

other

hazards.

NOTE:

Turn

power

switch

off

without

fail

before

the

connection

with

Anode

button

made.

CRT

ANODE

HIGH

IMPEDANCE

H.V,

METER

CHASSIS

GROUND

X-radiation

TUBE:

The

primary

source

radiation

this

Product

Safety

continuously

under

review

and

new

instructions

are

issued

from

time

time.

For

the

latest

receiver

the

picture

tube.

The

tube

utilized

for

the

above

mentioned

function

this

chassis

specially

constructed

limit

radiation

emissions.

For

continued

radiation

protection,

the

replacement

information,

always

consult

the

current

HITACHI

Ser-

vice

Manual.

subscription

to,

additional

copies

of,

HITACHI

Service

Manual

may

obtained

nominal

charge

from

HITACHI

SALES

CORPORATION.

tube

must

the

same

type

the

original,

HITACHI

approved

type.

When

trouble

shooting

and

making

test

measurements

receiver

with

problem

excessive

high

voltage,

avoid

being

unnecessarily

the

picture

tube

and

the

high

voltage

component.

not

operate

the

chassis

longer

than

necessary

locate

the

cause

excessive

voltage.

CONTROLS

TELESCOPIC

ANTENNA

CHANNEL

BUTTON

(Ph)

CHANNEL

“BUTTON

(4)

CHANNEL

RECALL

BUTTON

-——-POWER

SWITCH

“|

ee:

BAND

SELECTOR

—-

BATTERY

CASE

__EARPHONE

“RECORDING

JACK

SPipoom

VOLUME

CONTROL

[fon

AUTO/MANUAL

BUTTON

PINE

TUNING

KNOB

COLOR

Tee

See

BRIGHTNESS

PICTURE

TECHNICAL

CAUTIONS

[CHECK

HIGH

VOLTAGE

HOLD

DOWN

CIRCUIT)

Step

Set

the

Input

voltage

13243V.

Step

Connect

Equipment

and

H.V.

meter

shown

Fig.

and

Fig.

(Be

sure

that

the

control

knob

Equipment

rotated

fully

counterclockwise.)

Step

Turn

the

receiver

on,

(receive

color-bar

white-

pattern)

and

rotate

BRIGHTNESS

COLOR

AND

PICTURE

MAXIMUM.

Step

Slowly

rotate

the

control

knob

Equipment

CRT

ANODE

clockwise

and

confirm

that

picture

the

screen

naic

Naas

disappears

the

indication

H.V.

meter

less

EHASS!s

GHOUNY

than

17.5KV.

Step

Turn

the

receiver

off,

and

disconnect

Equipment

Fig.

CONNECTION

H.V.

METER

and

H.V.

meter.

SOUND/POWER

PW.B.

(CUPPER

PATTERN

SIDE)

EQUIPMENT

IKN-B

Slowly

rotate

clockwise

470N

410%

(1/4

CHASSIS

GROUND

Fig.

CONNECTION

EQUIPMENT

CK-200

CHASSIS

SERVICE

INFORMATION

UPPERCOVER

(1)

Disconnect

the

UHF

and

VHF

antenna

REMOVAL

cord

from

antenna

terminal.

(2)

Remove

four

screws

(1)

the

both

side

uppercover.

rabibsite

(3}

Remove

three

screws

(2)

the

eee

antenna

terminal

board.

;

aan

(4)

Remove

two

screws(3)

the

topcover

atone

—

{Both

side

the

cover)

TUNER

AND

SOUND/

(1)

Remove

two

screws

(4)

for

retaining

POWER

BLOCK

the

tuner

block

the

cabinet.

REMOVAL

(2)

Remove

four

screws

(5)

for

retaining

the

sound/power

block

the

cabinet.

T.V

P.W.

BOARD

(1)

Remove

two

screws

(6)

for

retaining

REMOVAL

the

T.V

P.W.

Board

the

cabtnet.

(2)

Unlock

the

T.V

P.W.

Board

(7).

CK-200

POWER

REGULATOR

(1)

Unsolder

each

leads

{emitter

and

SOUND

POWER

PWB.

TRANSISTOR

(0901)

base

Q901).

REMOVAL

(2)

Remove

screw

(9)

for

retaining

the

collector

Q901.

38)

CUPPER

“

RATTERN

SIDE

HORIZONTAL

OUTPUT

(1)

Unsolder

each

tead

(10

(emitter

and

Q702

TRS

HOLDER

TRANSISTOR

base

Q901)}.

HEAT

SINK

REMOVAL

(2}

Remove

two

screws

(1)

for

retaining

FOR

Q702

and

its

holder.

When

re-assembling

Q702,

procedure

shall

followed

shown

Figure.

pszscaszion

Bees

RWB.

WASHER

TUNER

REMOVAL

(1)

Unsolder

the

phono-plug

(2)

—

TUNER

coaxial

cable

from

antenna

terminal

board

the

electronic

tuner.

(2)

Disconnect

UHF

feeder

connector

(3)

from

antenna

termina!

board.

(3)

Loosen

two

screws

for

retaining

;

the

tuner

chasssi

tuner.

¥v

(4)

Unsolder

terminal

board

(5)

and

chassis

fixer

electronic

tuner

the

tuner

P.W.B.

(Cupper

pattern

side).

TUNER

NOTE:

When

unsoldering.

The

chassis

S14)

FIXER

electronic

tuner

shall

™N———

CHASSIS

TUNER

straightened

out.

TUNER

PWB.

——

TUNER

CHASSIS

FIXER

ELECTRONIC

TUNER

;

ON.

(CUPPER

PATTERN

SIDE)

CK-20C

DISASSEMBLING

CRT

MODULE

(1)

Rewind

the

pate

(1)

(2)

Untie

the

wire

for

fixing

CRT

module.

(3)

Pull

out

CRT

module

from

CRT-BASE.

When

returning

CRT

module,

pro-

cedure

shall

followed

shown

Figure.

PROCEDURE

CRT

MODULE

MOUNTING

(1)

Add

the

wire

the

CRT

module

shown

Fig.

(2)

Mount

the

CRT

module

CRT

after

tacking

original

position

CRT

neck.

(3)

CRT

module

should

fixed

ac-

cordance

with

the

procedure

following

((2)~(4)).

(4)

Check

the

CRT

module

should

fixed

completely

the

CRT

neck.

(1)

WIRE

SHOULD

PASSED

THROUGH

BETWEEN

CERAMIC

PW.B.

AND

CRT

SOCKET.

LEADS

AND

Te.

(2)

wiRE

SHOULD

TWISTED

TIHES

THAT

DOSE

NOT

LOOSEN.

CRT

(3)

WIRE

SHOULD

HOOKED

MODULE

SCREW

FOR

FIXING

DY.

(4)

~’

PART

WIRE

SHOULD

LIFTED

DIRECTION

ARROW.

WIND

THE

TAPE

TIMES

THE

CRT

NECK

AFTER

TAPING

FOCUS

LEAD

ONCE.

CK-200

DISASSEMBLING

P.W.

BOARDS

AUTO

PW.B.

CHANNEL

RECALL.

SWITCH:

CAN

REMOVED,

THAT

UNFIXED

RWB.

FOR

RETAINING

THE

AUTO

RWB.

POWER

SWITCH

~~~

SPEAKER

stimcne

CAN

SERVED

TE!

SCREW.

LOOSENING

POWER

TRANSFORMER

-——

SEE

P.WB.

REMOBAL

[TV

RW.B.

peter

[SOUND/POWER

PWB)

CAN

SERVED

AFTER

REMOVING

SOUND/

POWER

BLOCK

AND

POWER

TRANSFORMER

HOLDER

FIXER

VOLUME

TUNER

PW.B]]

CAN

SERVED

AFTER

REMOVING

TUNER

BLOCK,

“1

TYNER

CRT

MODULE

ANTENNA

TERMINAL

BOARD

CcK-200

LOCATION

ADJUSTMENT

POINT

SYNC,

DISCRI.

SUB

BRIGHT

AGC

VIDEO

AMP

H.LINERITY

HLINERITY

PwB_

__1@

[COLOR

SYNC.

PON

CEN

Vv.

LEFT

tU-

EER

[H.

HOLD

SOUND/POWER

PW.B.

CRT

MODULE

CRT

MODULE

(BACK

VIEW)

SCREEN

RED

DRIVE

BLUE

DRIVE

GREEN

AKG

RED

B.KG

BLUE

B.K.G

WIRING

DIAGRAM

POWER

SUPPLY

BLOCK

SOUND/

POWER

SUPPLY

P.W.B

JVHF

COAXIAL

CABLE

ANTENNA

TERMINA

30ARD

Pie

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