Samsung SyncMaster 510N User manual

TFT-LCD

MONITOR

Chassis

Model

MJ15AS*

510N

MJ15BS*

510T

MJ17AS*

710N

MJ17BS*

710T

MJ19AS*

910N

MJ19BS*

910T

ERVIC,

Manual

CONTENTS

TFT-LCD

MONITOR

Precautions

Product

Specifications

Disassembly

Reassembly

Alignments

Adjustments

Troubleshooting

Exploded

View

Parts

List

sino

ene

Electrical

Parts

List

Block

Diagram

Wiring

Diagram

10.

PCB

Layout

11.

Schematic

Diagrams

12.

Panel

Description

Pivot

Stand

2004

Samsung

Electronics

Co.,

Ltd.

All

rights

reserved.

This

manual

may

not,

whole

part,

copied,

photocopied,

reproduced,

translated,

converted

any

electronic

machine

readable

form

without

prior

written

permission

Samsung

Electronics

Co.,

Ltd.

MYJ15AS*

MJ15BS*

/MJ17AS*

/MJ17BS*

MJ19AS*/

MJ19BS*

Service

Manual

First

edition

February

2004.

Printed

Korea.

Trademarks

Samsung

the

registered

trademark

Samsung

Electronics

Co.,

Ltd.

MJ15AS*/MJ15BS*/MJ17AS*

/MJ17BS*/MJ19AS*

MJ19BS*

and

MacMaster

Cable

Adapter

are

trademarks

Samsung

Electronics

Co.,

Ltd.

Macintosh,

Power

Macintosh

are

trademarks

Apple

Computer,

Inc.

All

other

trademarks

are

the

property

their

respective

owners.

MJ15AS*/MJ17AS*/MJ19AS*/

MJ15BS*/MJ17BS*/MJ19BS*

Precautions

these

safety,

servicing

and

ESD

precautions

prevent

damage

and

protect

against

potential

hazards

such

electrical

shock.

1-1

Safety

Precautions

1-1-1

Warnings

For

continued

safety,

not

attempt

modify

the

circuit

board.

Disconnect

the

power

and

power

jack

before

servicing.

1-1-2

Servicing

the

LCD

Monitor

When

servicing

the

LCD

Monitor,

Disconnect

the

line

cord

from

the

outlet.

It is

essential

that

service

technicians

have

accurate

voltage

meter

available

all

times.

Check

the

calibration

this

meter

periodically.

1-1-3

Fire

and

Shock

Hazard

Before

returning

the

monitor

the

user,

perform

the

following

safety

checks:

Inspect

each

lead

dress

make

certain

that

the

leads

are

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

Hot

Check

(Figure

1-1):

WARNING:

not

use

isolation

transformer

during

this

test.

Use

leakage

current

tester

metering

system

that

complies

with

American

National

Standards

Institute

(ANSI

C101.1,

Leakage

Current

for

Appliances),

and

Underwriters

Laboratories

(UL

Publication

UL1410,

59.7).

(READING

SHOULD

NOT

ABOVE

0.5mA)

LEAKAGE

CURRENT

TESTER

DEVICE

UNDER

TEST

ALL

EXPOSED

METAL

SURFACES

2-WIRE

CORD

“ALSO

TEST

WITH

PLUG

REVERSED

{USING

ADAPTER

PLUG

REQUIRED)

EARTH

GROUND

Figure

1-1.

Leakage

Current

Test

Circuit

With

the

unit

completely

reassembled,

plug

the

line

cord

directly

into

120V

outlet.

With

the

unit’s

switch

first

the

position

and

then

OFF,

measure

the

current

between

known

earth

ground

(metal

water

pipe,

conduit,

etc.)

and

all

exposed

metal

parts,

including:

metal

cabinets,

screwheads

and

control

shafts.

The

current

measured

should

not

exceed

0.5

milliamp.

Reverse

the

power-plug

prongs

the

outlet

and

repeat

the

test.

1-1-4

Product

Safety

Notices

Some

electrical

and

mechanical

parts

have

special

safety-related

characteristics

which

are

often

not

evident

from

visual

inspection.

The

protection

they

give

may

not

obtained

replacing

them

with

components

rated

for

higher

voltage,

wattage,

etc.

Parts

that

have

special

safety

characteristics

are

identified

schematics

and

parts

lists.

substitute

replacement

that

does

not

have

the

same

safety

characteristics

the

recommended

replacement

part

might

create

shock,

fire

and/or

other

hazards.

Product

safety

under

review

continuously

and

new

instructions

are

issued

whenever

appropriate.

MJ15AS*/MJ17AS*/MJ19AS*/

MJ15BS*/MJ17BS*/MJ19BS*

1-1

Precautions

1-2

Servicing

Precautions

WARNING:

Caution:

Note:

section

this

manual.

electrolytic

capacitor

installed

with

the

wrong

polarity

might

explode.

Before

servicing

units

covered

this

service

manual,

read

and

the

Safety

Precautions

unforeseen

circumstances

create

conflict

between

the

following

servicing

precautions

and

any

the

safety

precautions,

always

the

safety

precautions.

1-2-1

General

Servicing

Precautions

Always

unplug

the

unit’s

power

cord

from

the

power

source

and

disconnect

the

Power

Jack

before

attempting

to:

(a)

remove

reinstall

any

component

assembly,

(b)

disconnect

PCB

plugs

connectors,

(c)

connect

test

component

parallel

with

electrolytic

capacitor.

Some

components

are

raised

above

the

printed

circuit

board

for

safety.

insulation

tube

tape

sometimes

used.

The

internal

wiring

sometimes

clamped

prevent

contact

with

thermally

hot

components.

Reinstall

all

such

elements

their

original

position.

After

servicing,

always

check

that

the

screws,

components

and

wiring

have

been

correctly

reinstalled.

Make

sure

that

the

area

around

the

serviced

part

has

not

been

damaged.

Check

the

insulation

between

the

blades

the

plug

and

accessible

conductive

parts

(examples:

metal

panels,

input

terminals

and

earphone

jacks).

Insulation

Checking

Procedure:

Disconnect

the

power

cord

from

the

source

and

turn

the

power

switch

ON.

Connect

insulation

resistance

meter

(500

the

blades

the

plug.

The

insulation

resistance

between

each

blade

the

plug

and

accessible

conductive

parts

(see

above)

should

greater

than

megohm.

Always

connect

test

instrument’s

ground

lead

the

instrument

chassis

ground

before

connecting

the

positive

lead;

always

remove

the

instru

ment’s

ground

lead

last.

1-3

Electrostatically

Sensitive

Devices

(ESD)

Precautions

Some

semiconductor

(solid

state)

devices

can

easily

damaged

static

electricity.

Such

components

are

commonly

called

Electrostatically

Sensitive

Devices

(ESD).

Examples

typical

ESD

are

integrated

circuits

and

some

field-effect

transistors.

The

following

techniques

will

reduce

the

incidence

component

damage

caused

static

electricity.

1-2

Immediately

before

handling

any

semiconductor

components

assemblies,

drain

the

electrostatic

charge

from

your

body

touching

known

earth

ground.

Alternatively,

wear

discharging

wrist-

strap

device.

avoid

shock

hazard,

sure

remove

the

wrist

strap

before

applying

power

the

monitor.

After

removing

ESD-equipped

assembly,

place

ona

conductive

surface

such

aluminum

foil

prevent

accumulation

electrostatic

charge.

not

use

freon-propelled

chemicals.

These

can

generate

electrical

charges

sufficient

damage

ESDs.

Use

only

grounded-tip

soldering

iron

solder

desolder

ESDs.

Use

ory

anti-static

solder

removal

device.

Some

solder

removal

devices

not

classified

“anti-static”

can

generate

electrical

charges

sufficient

damage

ESDs.

not

remove

replacement

ESD

from

its

protective

package

until

you

are

ready

install

it.

Most

replacement

ESDs

are

packaged

with

leads

that

are

electrically

shorted

together

conductive

foam,

aluminum

foil

other

conductive

materials.

Immediately

before

removing

the

protective

material

from

the

leads

replacement

ESD,

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

body

motions

when

handling

unpackaged

replacement

ESDs.

Motions

such

brushing

clothes

together,

lifting

your

foot

from

carpeted

floor

can

generate

enough

static

electricity

damage

ESD.

MJ15AS*/MJ17AS*/MJ19A5*/

MJ15BS*/MJ17BS*/MJ19BS*

Product

Specifications

2-1

MJ15AS*/MJ15BS*/MJ17AS*/MJ17BS*

Specifications

Item

Description

MJ15AS*/MJ15BS*

MJ17AS*/MJ17BS*

LCD

Panel

TFT-LCD

panel,

RGB

vertical

stripe,

normally

black

transmissive,

15-Inch

viewable,

0.297

(H)

0.297

(V}

pixel

pitch

TFT-LCD

panel,

AGB

vertical

stripe,

normally

black

transmissive,

17-Inch

viewable,

0.264

(H)

0.264

(V)

pixel

pitch

Scanning

Frequency

Horizontal

kHz

(Automatic}

Vertical

50 Hz

Horizontal

kHz

(Automatic)

Vertical

Display

Colors

16.2

Million

colors

Maximum

Resolution

Horizontal

1024

Pixels

Vertical

768

Pixels

Horizontal

1280

Pixels

Vertical

1024

Pixels

Input

Video

Signal

Analog,

0.714

Vp-p

positive

internally

terminated

Input

Syne

Signal

Maximum

Pixel

Clock

rate

Active

Display

Horizontal/Vertical

pee

power

voltage

Frequency

Power

Consumption

Dimensions

Set

Package

Type

Separate

H/V

sync,

Composite

H/V

Level

TTL

level

high

2.0

low

0.8

V),

Sync-on-Green

--0.25

MHz

304.1

228.1

135

MHz

338+

3mm

/270+3mm

264

Volts,

60/50

12V

25W

(normal)

Simple

Stand

Pivot

Stand

264

Volts,

60/50

34W

(normal)

Simple

Stand

133x22x

10.7

Inches

(338.0

56:3

272.0

mm]

State

stand

disassembled

13.3.x6.9

133

laches

(338.0

175.0

337.0

mm)

State

stand

installed

15.3

4.9

15.1

Inches

(388

125

383

mm)

146%

24x

12.4

Inches

(370.0

60.3

316.0

mm)

State

stand

disassembled

14.6

6.9

Inches

(370.0

175.0

381.0

mm)

State

stand

installed

17.9

5.6

17.2

Inches

(455

141

437

mm)

Weight

(Set/Package}

3.1

(6.8

Ibs)

4.25

(9.4

Ibs)

4.5

(9.9

Ibs)

6.15

(13.6

Ibs)

Dimensions

Set

Package

Pivot

Stand

146

24x

124

Inches

(370.0

60.3

316.0

mm|

State

stand

disassembled

146

75x

16.0

Inches

(370.0

190.9

406.8

mr)

State

stand

installed

20.0

10.1

16.0

Inches

(508

256

407

mm}

Weight

(Set/Package)

6.25

(13.8

Ibs)

7.95

(17.5

Ibs)

Environmental

Considerations

Operating

Temperature

50°F

104°F

(10°C

40°C)

Operating

Humidity

80%

Storage

Temperature

-13°F

113°F

(-25°C

45°C)

Storage

Humidity

Designs

and

specifications

are

subject

change

without

prior

notice.

MJ15AS*/MJ17AS*/MJ19AS*/

MJ15BS*/MJ17BS*/MJ19BS*

2-1

Product

Specifications

2-2

MJ19AS*/MJ19BS*

Specifications

—

Item

LCD

Panel

Description

TFT-LCD

panel,

RGB

vertical

stripe,

normally

black

transmissive,

19-Inch

viewable,

0.297

(H)

0.297

(V)

pixel

pitch

ao,

Scanning

Frequency

Horizontal

kHz

(Automatic)

Vertical

Display

Colors

16.2

Million

colors

Maximum

Resolution

Horizontal

1280

Pixels

Vertical

1024

Pixels

Input

Video

Signal

Analog,

0.7

Vp-p

positive

————|

Input

Sync

Signal

Maximum

Pixel

Clock

rate

Active

Display

Horizontal/Vertical

terminated

power

voltage

Frequency

Type

Separate

H/V

sync,

Composite

H/V

Level

TTL

level

high

2.0

low

0.8

V),

Sync-on-Green

~0.25

135

MHz

376.32

301.056

264

Volts,

60/50

3Hz

Power

Consumption

Dimensions

Set

Package

38W

(normal)

Simple

Stand

Pivot

Stand

16.4x

138

Inches

(416.6

60.2

3494

State

stand

disassembled

164x727

16.7

Inches

(446.6

195.7

424.6

mm)

State

stand

installed

20.0

5.9

19.4

Inches

(509

150

494

mm)

16.4%

13.8

Inches

(416.6

60.2

349.4

mm}

State

stand

disassembled

16.475

167

Inches

(416.6

190.9

423.4

mm|

State

stand

installed

21.1x

9.4

17.4

Inches

(535

238

443

mm}

Weight

(Set/Package)

5.85

(12.9

Ibs}

7.8

(17.2

Ibs}

7.30

(16.1

Ibs)

9.1

(20.1

Ibs)

Environmental

Considerations

Operating

Temperature

50°F

104°F

(10°C

40°C)

Operating

Humidity

Storage

Temperature

-13°F

113°F

(-25°C

45°C)

Storage

Humidity

Designs

and

specifications

are

subject

change

without

prior

notice.

MJ15AS*/MJ17AS*/MJ19AS*/

MJ15BS*/MJ17BS*/MJ19BS*

Product

Specifications

2-3

Assignments

15-Pin

D-Sub

Signal

Cable

Connector

Sync

Type

oOo

—

Rx2-

Rx2+

GND

Connection

DDC

Clock

(SCL)

DDC

Data

(SDA)

Ax1-

Rx1+

Connection

24P

DVI-D

No.

Separate

Composite

Sync-on-green

Red

Green

H/V

Sync.

Blue

GND

GND GND

DDC

Return

(GND)

DDC

Return

(GND}

DDC

Return

(GND)

GND-R

GND-R GND-R

GND-G

GND-G GND-G

GND-B

DDC

Power

Input

(+5V)

DDC

Power

Input

(+5V)

DDC

Power

Input

(+5V)

Self

Raster

Self

Raster

Self

Raster

GND

Bi-Dr

Data

(SDA)

Bi-Dr

Data

(SDA)

Bi-Dr

Data

(SDA)

H-Syne.

H/V-Syne.

Not

Used

V-Syne.

Not

Used

Not

Used

DDC

Clock

(SCL)

DDC

Clock

(SCL)

DDC

Clock

(SCL)

Connection

+5V_M

Self

Raster

+5V_M

Rx0-

Rx0+

Connection

RxC+

RxC-

MJ15AS*/MJ17AS*/MJ19AS*/

MJ15BS*/MJ17BS*/MJ19BS*

2-3

Product

Specifications

2-4

Timing

Chart

This

section

the

service

manual

describes

the

timing

that

the

computer

industry

recognizes

standard

for

computer-generated

video

signals.

Table

2-1

Timing

Chart

IBM

VESA

VESA(MJ17AS*/MJ17BS*/

(MJ15AS*/MJ15BS*/MJ17AS*/MJ17BS*/MJ19AS*/MJ19BS*)

MJ19AS*/MJ19BS*)

Ven)

VGA

gaoyrs

800/60

800/75

1024/60

1024/75

1280/60

1280/75

Timing

720

400

640

480

640

480

800x600

1024x

768

1024

768

1280

1024

1280

1024

(kHz)

31.469 31.469

37.500

37.879

46.875

48.363

60.023

63.981

79.975

wsec

31.777

31.778 26.667

26.400

21.333

20.677

16.660

11.852

12.504

usec

3.813

2.032 3.200

1.616 2.092

1.219

1.037

1.067

usec

1.589 1.589

3.810

2.200 3.232

2.462

2.235

2.296

1.837

psec

26.058

20.317

20.000

16.162 15.754 13.003

9.259

9.481

sec

0.318

0.508

0.000

0.323

0.369

0.203 0.000

0.119

(Hz)

70.087

59.940

75.000

60.317

75.000

60.004

75.029

60.020

75.025

msec

14.268

16.683

13.333

16.579

13.333

16.666

13.328 16.005

13.329

msec

0.064

0.080

0.106

0.064

0.124

0.050

0.047

0.038

msec

0.858

0.794 0.427

0.607

0.448

0.600

0.466

0.594

0.475

msec

13.155

15.761

12.800

15.840

12.800

15.880

12.795 15.630

12.804

msec

0.191

0.064 0.027

0.0261

0.021

0.062 0.017 0.016 0.013

Clock

Freq.

28.322 26.175

31.500

40.000

49.500

75.000

78.750

108.000

135.000

(MHz)

Polarity

H.Synec

Negative

Positive

Negative

Positive

V.Syne

Positive

Negative

Positive

Negative

Positive

Remark

Separate

Horizontal

Video

Separate

Sync

Vertical

H/V

Composite

Sync

‘woeo

LLL

soca

Lee

—

»|

Sync-on-Green

Vertical

rors

Front

porch

Front

porch

rife!

Pel

nae]

Line

time

total

Horizontal

sync

width

Frame

time

total

Vertical

sync

width

Back

porch

Active

time

Back

porch

Active

time

2-4

MJ15AS*/MJ17AS*/MJ19AS*/

MJ15BS*/MJ17BS*/MJ19BS*

Disassembly

and

Reassembly

This

section

the

service

manual

describes

the

disassembly

and

reassembly

procedures

for

the

MJ15AS*

/MJ17AS*/MJ19AS*

/MJ15BS*

MJ17BS*/MJ19BS*

TFT-LCD

monitors.

WARNING:

This

monitor

contains

electrostatically

sensitive

devices.

Use

caution

when

handling

these

components.

3-1

Disassembly

Cautions:1.

Disconnect

the

monitor

from

the

power

source

before

disassembly.

After

placing

monitor

the

cushioned

table,

remove

two

screws

the

left

and

right

the

bottom.

Disconnect

back

cover

from

monitor

after

grabbing

the

right

edge

the

set

(a)

and

lifting

the

stand((2)).

Remove

screws

from

the

shield.

Disconnect

function

cable

from

the

cover

front

and

lift

the

panel.

Remove

screws

from

the

panel

shield.

(Right

Left)

Lift

the

panel

shield

and

carefully

remove

the

silicon

glue

the

cables

with

nipper.

Caution

Lamp

wire

may

easily

damaged.

Please

use

caution

when

removing

the

silicon.

MJ15AS*/MJ17AS*/MJ19AS*/

3-1

MJ15BS*/MJ17BS*/MJ19BS*

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