BELINEA 103026 Manuale utente

Belnea

Service

Manual

17-inch

Color

Monitor

(Belinea

103026)

Belnea

(Maxdata

103026)

Table

Contents

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Spare

Pars

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Belnea

Precautions

(Maxdata

103026)

these

safety

and

servicing

precautions

prevent

damage

and

protect

against

potential

hazards

such

electrical

shock

and

X-rays.

1-1

Safety

Precautions

1-1

Warnings

For

safety

purpose,

not

attempt

modify

the

circuit

board,

and

always

disconnect

the

power

before

performing

servicing

the

monitor.

Operation

the

monitor

outside

its

cabinet

with

the

cover

removed

involves

the

risk

shock

hazard.

Repair

work

the

monitor

should

only

attempted

service

personnel

who

are

thoroughly

familiar

with

all

necessary

safety

precautions

and

procedures

for

working

high

voltage

equipment.

Do-not

lift

the

CRT

the

neck.

After

completely

discharging

the

high

voltage

anode,

handle

the

CRT

only

when

wearing

shatterproof

goggles.

Try

keep

the

CRT

away

from

the

body

during

handling.

High

voltage

should

always

kept

the

rated

value,

higher.

Only

when

high

voltage

excessive

are

X-rays

capable

penetrating

the

shell

the

CRT.

Operation

high

voltages

may

also

cause

failure

the

CRT

high

voltage

circuitry.

The

CRT

especially

constructed

limit

X-

ray

emission

0.5mR/HR

300

microamperes

anode

current.

ensure

continued

X-ray

protection,

replace

the

CRT

with

only

the

same

equivalent

type

the

original,

and

adjust

the

anode’s

voltage

the

designated

maximum

rating,

never

exceed.

1-1-2

Safety

Checks

Before

returning

the

monitor

the

user,

perform

the

following

safety

checks:

Inspect

make

certain

that

each

lead

dress

not

pinched

that

hardware

not

lodged

between

the

chassis

and

other

metal

parts

the

monitor.

Inspect

all

protective

devices

such

nonmetallic

control

knobs,

insulating

materials,

cabinet

backs,

adjustment

and

compartment

covers

shields,

isolation

resistor-capacitor

networks,

mechanical

insulators,

etc.

Leakage

Current

Check

Always

perform

the

Leakage

Current

Check

the

exposed

metal

parts,

including

metal

cabinets,

screwheads

and

control

shafts,

follows:

Plug

the

line

cord

directly

into

rated

outlet.

not

use

isolation

transformer

during

the

check.

Use

voltmeter

with

least

5000

ohms

per

volt

sensitivity

follows:

Connect

1500

ohms,

watt

resistor

paralleled

0.15uF

capacitor

series

with

all

exposed

metal

cabinet

parts

anda

known

earth

ground,

such

electrical

conduct

electrical

ground

connected

earth

ground,

shown

the

Figure

1-1.

Measure

the

voltage

across

the

combination

resistor

and

capacitor.

Figure

1-1.

Set

For

Leakage

Current

Check

exposed

meatal

cabinet

part

known

earth

ground

4500

ohm

watt

Reverse

the

plug

the

outlet

and

repeat

the

steps

for

voltage

measurements

for

each

exposed

metal

part.

Voltage

reading

must

not

exceed

0.3

volts

RMS,

equivalent

0.2

milliampere

AC.

Any

value

exceeding

this

limit

ill

constitute

potential

shock

hazard

and

must

corrected

immediately.

Page

Precautions

Belnea

(Maxdata

103026)

1-1-3

Product

Safety

Notices

Many

electrical

and

mechanical

parts

this

chassis

have

special

safety-related

characteristics

which

are

often

not

evident

from

visual

inspection,

the

protection

afforded

them

may

not

obtained

replacing

them

with

components

rated

for

higher

voltage,

wattage,

etc.

Before

replacing

any

these

components,

consult

the

Recommended

Spare

Parts

List

given

the

end

this

manual.

Any

the

replacements

that

not

provide

the

same

safety

characteristics

may

result

shock,

fire,

X-ray

emission

other

hazards.

1-2

Servicing

Precautions

Warning:

electrolytic

capacitor

installed

with

the

wrong

polarity

might

explode.

Caution:

Before

performing

servicing

covered

this

service

manual,

read

and

the

Safety

Precautions

section

this

manual.

Note:

unforeseen

conflict

between

the

following

servicing

precautions

and

any

the

safety

precautions,

always

the

safety

precautions

closely

the

servicing

precautions

printed

the

monitor

cabinet

and

chassis.

Always

unplug

the

power

cord

from

the

power

source

before

removing

installing

any

component

assembly,

disconnecting

PCB

plugs

connectors

and

connecting

test

component

parallel

with

capacitor.

When

replacing

parts

circuit

boards,

clamp

the

lead

wires

around

the

component

before

soldering.

When

replacing

high

wattage

resistor

(>0.5W

metal

oxide

film

resistor)

the

circuit

board,

keep

the

resistor

about

(1/2

inch)

away

from

the

circuit

board.

Keep

wires

away

from

the

high

voltage

high

temperature

components.

Keep

wires

their

original

positions

minimize

interference.

Always

connect

test

instrument’s

ground

lead

the

instrument

chassis

ground

before

connecting

the

positive

lead;

always

remove

the

instrument’s

ground

lead

last.

After

putting

the

rear

cover

back

and

make

sure

the

monitor

working

properly,

the

Hi-Pot

Ground

Continuity

tests

MUST

performed

before

the

monitor

returned

user.

1-3

Hi-Pot

Test

Equipment

Puncture

test

model

PM5530

ADT

KIKUSU

TOS-8750

voltage

tester

equivalent

approved

equipment.

Note

The

test

equipment

must

calibrated

regular

period.

Test

Setup

Apply

voltage

2100

VDC

Test

duration

seconds

Cutoff

current

should

set

Test

Procedure

Unplug

power

cord

from

source.

Put

the

power

switch

the

monitor

the

“ON”

position.

Leave

signal

cable

un-connected.

Precautions

Page}

Belnea

(Maxdata

103026)

Plug

monitor

power

cord

the

Pot

tester

terminals.

Turn

tester

and

watch

the

indicator

beeper.

the

indicator

lamp

lighten,

beeper

beeps,

the

test

fails.

1-4

Ground

Continuity

Test

Equipment

low

ohm

tester

TOS-6100

equivalent

approved

equipment.

Note

The

test

equipment

must

calibrated

regular

period.

Test

Setup

Test

duration

seconds

Set

current

limit

The

grounding

resistance

must

less

than

0.1

ohm.

Test

Procedure

Plug

the

monitor

power

cord

the

tester

terminals.

Make

sure

all

connections

are

well-contacted.

Turn

monitor

power

and

tester

power.

Press

“Test”

button.

green

light

shows

up,

means

test

OK.

red

light

shows

up,

means

test

fails.

Ifthe

Tester

has

digital

display,

the

resistance

value

must

not

exceed

0.1

ohm.

Note

sure

not

touch

the

metal

portion

the

signal

cable

head

during

testing.

Page

Precautions

Belnea

(Maxdata

103026)

Product

Specifications

2-1

Specifications

17-inch

(16-inch

Visual

image

area),

sloted

mask,

degrees

Picture

Tube

deflection,

dot

type

black

matrix,

medium

short

persistence

phosphor,

dark

tint,

non-glare/

anti-static

screen,

0.28

dot

pitch

ing

VGA,

Super

VGA,

1024x768@60/70/75/85

eRRRE

REGUS?

1280x1024@60Hz

Maximum

Resolution

1280

dots

(H)

1024

lines

(V)

@60Hz

refresh

rate

Display

Area

306

(H)

230

(V)

typical

Display

Characters

char.

rows

matrix

Display

Colors

Analog

ty,

jimited

Colors

Input

Horizontal:

kHz

Frequencies

Vertical

160

iso

_[Amfon'07

ven ROB

peeve

Watts

(maximum)

rated

voltage,

100VAC

240VAC

Center

Area

0.3

mm;

Corner

Area

0.4mm

Power

On/Off,

Contrast,

Brightness,

Horizontal

Size,

Horizontal

Position,

Vertical

Size,

Vertical

Position,

Pincushion,

Trapezoid,

Rotation,

Color

temperature,

Language,

Display

Frequency,

Degauss,

Recall,

Moire,

Moire

Service

Controls

PWB-1618

PWB-1606

power

voltage

adjust

(VR801),

high

voltage

adjust

(see

Table

2-2.

Timing

Chart)

Operation

temperature

10°C

40°C

ambient

Operation

Humidity

20%

80%

ambient

Storage

temperature

-40°C

65°C

ambient

Storage

Humidity

10%

90%

(non-condensing)

Altitude

Non

operating

40,000

feet

sea

level

operating

10,000

feet

sea

level

User

Controls

Environmental

Considerations

Note:

Above

specifications

are

subject

change

without

prior

notice.

Product

Specifications

Pages

Belnea

(Maxdata

103026)

2-2

Signal

Cable

Connections

Table

2-1.

Signal

Cable

Assignment

feet

reeves

[orsen

ves

——*idi

forse

aroma

Note*

This

pinis

used

for

selftest

detection.

Connect

this

ground

the

end.

—

For

99:

This

will

provide

+5V

from

side.

Page

Product

Specifications

Belnea

(Maxdata

103026)

2-3

Timing

Chart

This

section

describes

the

timings

that

the

computer

industry

recognizes

standard

for

computer-generated

video

signals.

Table

2-2.

Timing

Chart

aee

ees

eee

Dots

720

640

800

1024

800

1280

1024

Dots

400

480

600

1024

768

37.5

H-freq

(kHz)

Syne

Polarity

period

Blking

Syne

B.P.

Active

FE.P.

V-freg

(Hz)

Sync

Polarity

Period

Biking

Sync

B.P.

Active

F.P.

Seperate

Sync

Horizontal

Vertical

Video

H.Parameters:

V.Parameters:

Period

Blanking

Time

Period

Blanking

Time

[

Syne

Width

Back

Porch

Sync

Width

Back

Porch

Active

Time

Front

Porch

Active

Time

Front

Porch

Product

Specifications

Page?

}

Belnea

(Maxdata

103026)

2-4

Display

Power

Management

Signal

(DPMS)

Note:

The

monitor

will

driven

into

“Power

Saving”

mode

the

control

signal

from

the

display

controller,

indicated

the

amber-color

power

LED.

Table

2-3.

Display

Power

Management

Signal

(DPMS)

State

Power

LED

Cousumption

Light

Active

For

power

consumption

75W

Max.

230V

AC,

preset

size

and

maximum

light

output

condition)

2-5

TCO

Version

(Optional)

The

monitor

meets

the

TCO

95/99,

NUTEK

energy

saving,

electric

and

magnetic

field

requirements.

Also

compliant

with

TCO

95/TCO

labelling

scheme.

The

emission

from

magnetic

and

electric

field

must

comply

with

the

limits

specified

the

Swedish

Board

for

Measurement

and

Testing,

commonly

known

MPR

1990

recommendations.

These

limits

are

sum-

marized

the

Table

2-4.

Table

2-4.

TCO

Emission

Requirements

Electrostatic

+/-

500

+/-

500

Potential

The

monitor

designed

with

selected

CRT

and

carefully

routed

wires

around

CRT,

make

sure

exactly

the

same

routing

scheme

used

when

doing

CRT

replacement.

Page

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Specifications

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