JVC BM-H2000PN Manual de usuario

IVC

VIDE-V26672

CONTENTS

SAFETY

PRECAUTIONS

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

OPERATING

INSTRUCTIONS

.........

MAIN

PARTS

LOCATION

SPECIFIC

SERVICE

INSTRUCTIONS

SERVICE

ADJUSTMENTS

..........

STANDARD

CIRCUIT

DIAGRAM

PARTS

LiST

Item

Content

Item

Content

Color

system

NTSC

3.58MH2,NTSC

4.43MHz,PAL

Y,R-Y,B-¥

RGB/COMPO

Picture

tube

‘50em

diagonally

measured,90°deflection,

component

line:common

with

analog

RGB)

in-line

gun,dot

pitch

0.4

External

syne

SYNC(1

line),

BNC

Screen

size

399

298mm

XH}

inputs

{with 1

bridge-connected

output)

H.resolution

750TV

line

Audio

inputs

AUDIO

A,B,RGB/COMPO(

lines),RCA

‘i

color

temperature

D-6500K;x=0.313,y=

0.329

each

(with 1

oridge-connected

outpul)

D-9300K;x

0.283.y

0.297

(selectable)

Tally/remote

DIN(6-pin)

Video

inputs

Audio

power

‘

Composite

video

INPUT

A,B(2lines),BNC

2each

output

1.6W

{with 4

bridge-connected

output)

Operation

Termination

switches

provided

temperature

|0-40°C

(20-80%

RH)

Y/C

(Hine)

DIN(4-pin)x2

(with

bridge-connected

{Power

Output)

Termination

switches

provided

requirements

230V

AC,50/60Hz

Analog

AGB

RGBICOMPO

line:common

with

Y,R-

{Power

consumption

|0.6A

maximum

Y,B-Y),BNC.x6

{with

bridge-connected

|dimension

449X431

X511mm

(WxHxD)

Outputs)

Termination

switches

provided

‘Mass

30kg

Design

specification

subject

change

without

notice.

No.51042

1995

VICTOR

COMPANY

JAPAN,LTD.

Sep.1995

BM-H2000PN

SAFETY

PRECAUTIONS

The

design

this

product

contains

special

hardware,

many

circuits

and

components

specially

for

safety

purposes.

For

continued

protection,

changes

should

made

the

original

design

unless

authorized

writing

the

manufactur-

er.

Replacement

parts

must

identical

those

used

the

original

circuits.

Service

should

performed

qualified

per-

sonnel

only.

Alterations

the

design

circuitry

the

products

should

not

made.

Any

design

alterations

additions

will

void

the

manufacturer's

warranty

and

will

further relieve

the

manufac-

turer

responsibility

for

personal

injury

property

damage

resulting

therefrom.

Many

electrical

and

mechanical

paris

the

products

have

special

safety-related

characteristics.

These

characteristics

are

often

not

evident

from

visual

inspection

nor can

the

protection

afforded

them

necessarily

obtained

using

replace-

ment

components

rated

for

higher

voltage,

wattage,

etc.

Re-

placement

parts

which

have

these

special:

safety

characieris-

tics

are

identified

the

parts

list

Service

manual.

Electri-

ca!

components

having

such

features

are

identifi

shading

the

schematics

and

(

4\)on

the

parts

list

Service

manual.

The

use

substitute

replacement

which

does

not

have

the

same

safety

characteristics

the

recommended

replacement

part

shown

the

parts

list

Ser-

vice

manual

may

cause

shock,

fire,

other

hazards.

Don't

short

between

the

LIVE

side

ground

and

ISOLAT-

ED(NEUTRAL)

side

ground

EARTH

side

ground

when

repairing.

Some

model’s

power

circuit

partly

different

the

GND.

The

difference

the

GND

shown

the

LIVE

(L}

side

GND,

‘the

ISOLATED(NEUTRAL)

(

side

GND

and

EARTH

(@®)

side

GND.

Don't

short

between

the

LIVE

side

GND

and

ISOLATED{NEUTRAL)

side

GND

EARTH

side

GND

and

never

measure

with

measuring

apparatus

(oscilloscope

ete.)

the

LIVE

side

GND

and

SOLATED(NEUTRAL)

side

GND

EARTH

side

GND

the

same

time.

above

note

will

not

kept,

fuse

any

parts

will

broken.

any

repair

has

been

made

the

chassis,

recommended

that

the

setting

should

checked

adjusted

(See

AD-

JUSTMENT

POWER

SUPPLY).

The

high

voltage

applied

the

picture

tube

must

conform

with

‘that

specified

Service

manual.

Excessive

high

voltage

can

cause

increase

X-Ray

emission,

arcing

and

possible

component

damage,

therefore

operation

under

excessive

high

voltage

conditions

should

kept

minimum,

should

prevented.

severe

arcing

occurs,

remove

the

power

im-

mediately

and

determine

the

cause

visual

inspection

(incor-

rect

installation,

cracked

melted

high

voltage

harness,

poor

soldering,

etc.).

maintain

the

proper

minimum

level

soft

X-Ray

emission,

components

the

high

voltage

circuitry

in-

cluding

the

picture

tube

must

the

exact

replacements

al-

ternatives

approved

the

manufacturer

the

complete

prod-

vet.

not

check

high

voltage

drawing

arc.

Use

high

volt-

age

meter

high

voltage

probe

with

VTVM.

Discharge

the

picture

tube

before

attempting

meter

connection,

con-

necting

clip

lead

the

ground

frame

and

connecting

the

other

end

the

Jead

through

10kQ

resistor

the

en-

ode

button.

When

sarvice

required,

observe

the

original

lead

dress.

Ex-

tra

precaution

should

given

assure

correct

lead

dress

the

high

voltage

circuit

area.

Where

short

circuit

has

oc-

curred,

those

componenis

that

indicate

evidence

overheat-

ing

should

replaced.

Always

use

the

manufacturer's

re-

placement

components.

(No.51042)

Isolation

Check

{Safety

for

Electrical

Shock

Hazard)

After

re-assembling

the

product,

always

perform

isolation

check

the

exposed

meta!

parts

the

cabinet

(antenna

ter-

minals,

video/audio

input

and

output

terminals,

Control

knobs,

metal

cabinet,

screwheads,

earphone

jack,

control

shafts,

etc.)

sure

the

product

safe

operate

without

danger

electrical

shock,

Dielectric

Strength

Test

The

isolation

between

the

primary

circuit

and

ali

metal

parts

exposed

the

user,

particularly

any

exposed

metal

part

having

return

path

the

chassis

should

withstand

voltage

3000V

{r.m.s.)

for

period

one

second.

(....

Withstand

voltage

1400V

(r.m.s.)

appli-

ance

rated

120V,

and

3000V

(r.m.s.)

appli-

ance

rated

200V

more,

for

period

one

second.)

This

method

test

requires

test

equipment

not

generally

found

the

service

trade.

Leakage

Current

Check

Piug

the

line

cord

directly

into

the

outlet

(do

not

use

line

isolation

transformer

during

this

check.).

Using

"Leak-

age

Current

Tester”,

measure

the

leakage

current

from

each

exposed

meta!

part

the

cabinet,

particularly

any

exposed

metal

part

having

return

path

the

chassis,

known

good

earth

ground

(water

pipe,

etc.),

Any

leakage

current

must

not

exceed

0.5mA

(r.m.s.).

Altemate

Check

Method

Plug

the

line

cord

directly

into

the

outlet

(do

not

use

line

isolation

transformer

during

this

check.).

Use

volt-

meter

having

1000

ohms

per

voit

sensitivity

the

fol-

owing

manner.

Connect

15002

10W

resistor

paralleled

0.15yF

AC-type

capacitor

between

exposed

metal

part

and

known

good

earth

ground

(water

pipe,

etc.).

Measure

the

voltage

across

the

resistor

with

the

voltmeter.

Move

the

resistor

connection

each

exposed

metal

part,

par-

ticularly

any

exposed

metal

part

having

return

path

the

chassis,

and

measure

the

voltage

across

the

resistor.

Now,

reverse

the

plug

the

outlet

and

repeat

each

mea-

surement.

Any

voltage

measured

must

not

exceed

0.35V

(rm.s.).

This

corresponds

0.5mA

(r.m.s.).

VOLTMETER

(HAVING

100021,

SENSITIVITY}

PLACE

THIS-

PROBE

EACH

EXPOSED

METAL

PART

15002

10W

GOOD

EARTH

GROUND

Fig.A

Manual

Change

Information|

SERVICE

MANUAL

BASIC

CHASSIS

BM-H2000PN

Since

some

details

the

BM-H2000PN

service

manual

(No.51042,

Sep.

1995)

were

changed,

are

informing

you

these

changes

and

the

new

descriptions.

CHANGED

ITEMS

EXPLODED

VIEW

PARTS

LIST

(Page

PARTS

No.

PARTS

NAME

DESCRIPTION

No.

NEW

CM22909-001

CM22909-A01

CONTROL

BRACKET

CM46115-B01

M46115-C01

POWER

KNOB

100

CM12697-A0B-MO

CMi2697-BOB-M0

FRONT

PANEL

ASSY

Inc.No,101

103

102

CM43094-004

CM43094-A01

JVC

MARK

PRINTED

WIRING

BOARD

PARTS

LIST

SIGNAL

BOARD

ASS’Y

(FX-1072A)

(Page

SYMBOL

PARTS

No.

PARTS

NAME

DESCRIPTION

No.

NEW

Di502

MA3047(L)-X

CHIP

ZENER

DIODE

DELETE

CRT

SOCKET

BOARD

ASS’Y

(FX-3037A)

(Page

12)

PARTS

No.

cies

PARTS

NAME

DESCRIPTION

No.

NEW

C3313

—_—_——

QFLC1HK-122MZ

CAP.

1200pF_

50V_iK

POWER

BOARD

ASS’Y

(FX-9043A)

(Page

‘igor

PARTS

No.

a|™

PARTS

NAME

DESCRIPTION

No.

NEW

C9018

QEHC1HM-106MZ

QEHC1HM-226MZ

CAP.

22yF

50V_M

Printed

dapan

VICTOR

COMPANY

JAPAN,LIMITED

9603

TELEVISION

RECEIVER

DIVISION

1106

Heta,lwai-city,Ibaraki-prefecture,306-06,Japan

No.51042B

1996

VICTOR

COMPANY

JAPAN,LTD.

Mar.1996

BM-H2000PN

OPERATING

INSTRUCTIONS

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BM-H2000PN/BM-H1400PN/BM-1400PN

COLOUR

VIDEO

MONITOR

(No.51042)

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