ViewSonic ViewPanel VGI50 Manuale utente

Service

Manual

ViewSonic

VGI50

ViewPanel

—

Model

No.

VLCDS21457-1

15”

Active

Matrix

LCD

Color

Monitor

(Rev.

—

April

1999)

ViewSonic®

381

Brea

Canyon

Road,

Walnut,

California

91789

USA

(800)

888-8583.

1998

ViewSonic

Corporation.

All

rights

reserved.

part

this

publication

may

reproduced,

transmitted,

transcribed,

stored

retrieval

system,

translated

into

any.

language

computer

language,

any

form

any

means,

electronic,

mechanical,

magnetic,

optical,

chemical,

manual

otherwise,

without

the

prior

written

permission

ViewSonic

Corporation.

Disclaimer

ViewSonic

makes

representations

warranties,

either

expressed

implied,

with

respect

the

contents

hereof

and

specifically

disclaims

any

warranty

merchantability

fitness

for

any

particular

purpose.

Further,

ViewSonic

reserves

the

right

revise

this

publication

and

make

changes

from

time

the

contents

hereof

without

obligation

ViewSonic

notify

any

person

such

revision

changes.

Trademarks

ViewSonic

registered

trademark

ViewSonic

Corporation.

All

other

trademarks

used

within

this

document

are

the

property

their

respective owners.

Revision

History

Description

Changes

Approval

4/29/99

Initial

Issue

VG150

Service

Manual

TABLE

CONTENTS

PRECAUTIONS

AND

SAFETY

WARNINGS

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Pauw

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SPECIFIC

ATION

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incon

cast

aairas

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Neste

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3~6

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BOARD

CONNEC

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CIR

CORE

PER

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tends

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43~58

SCHEMATIC

DORA.

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iii

VG150

Service

Manual

ViewSonic

Service

Manual

April

1999

Version

1.0

VG150

ene

FCC

INFORMATION

This

equipment

has

been

tested

and

found

comply

with

the

limits

Class

digital

device,

pursuant

part

the

FCC

Rules.

These

limits

are

designed

provide

reasonable

protection

against

harmful

interference

residential

installation.

This

equipment

generates,

uses

and

can

radiate

radio

frequency

energy,

and

not

installed

and

used

accordance

with

the

instructions,

may

cause

harmful

interference

radio

communications.

However,

there

guarantee

that

the

interference

will

not

occur

particular

installation.

this

equipment

does

cause

unacceptable

interference

radio

television

reception,

which

can

determined

turning

the

equipment

off

and

on,

the

user

encouraged

try

correct

the

interference

one

the

following

measures

reorient

relocate

the

receiving

antenna;

increase

the

separation

between

equipment

and

receiver;

connect

the

into

outlet

circuit

different

from

that

which

the

receiver

connected.

FCC

WARNING

assure

continued

FCC

compliance,

the

user

must

use

grounded

power

supply

cord

and

the

provided

shielded

video

interface

cable

with

bonded

ferrite

cores.

Also,

any

unauthorized

changes

modifications

Amtrak

products

will

void

the

user’s

authority

operate

this

device.

Thus

AmTRAN

will

not

held

responsible

for

the

product

and

its

Safety.

CERTIFICATION

This

device

complies

with

the

requirements

the

EEC

directive

89/336/EEC

with

regard

“Electromagnetic

compatibility.”

SAFETY

CAUTION

Use

power

cable

that

properly

grounded.

Always

use

the

cords

follows

—

USA

(UL);

Canada

(CSA);

Germany

(VDE);

Switzerland

(SEV);

Britain

(BASEC/BS);

Japan

(Electric

Appliance

Control

Act);

cord

that

meets

the

local

safety

standards.

Page

iContidential

Not

Copy,

eerial

Not

Copy,

Service

Manual

ViewSonic

VG150

April

1999

Version

1.0

Features

The

VG150

are

world

class

TFT

LCD

analog

display

monitors

that

include

the

following

features.

Digital

Screen

Display

Controls

User

friendly

buttons

(Power,

Function,

Select

/-),

Auto)

allowing

for

picture

perfect

quality.

User

can

define

display

mode

reset

default

settings.

Help

contains:

Auto-Sync;

Contrast;

Brightness;

OSD

H-Pos;

OSD

V-Pos;

Color;

LCD

Adjust;

MISC

and

Exit.

Power

Supply

Support

Ability

voltages

from

100~240

Vac

(Universal),

thus

allowing

full

range

input

power

supply.

Power

Saving

System

This

environmental

friendly

product

able

reduce

power

consumption

75%

Suspend

Mode

and

than

95%

Off

Mode.

Frequency

Range

Monitor

can

support

video

standards

from

VGA

XGA,

where

Horizontal

frequency

ranges

from

30~62kHz

and

Vertical

frequency

ranges

from

50~75

Hz.

Page

Confidential

Not

Copy

ViewSonic

April

1999

Version

1.0

SPECIFICATIONS

Service

Manual

VG150

Characteristic

LCD

Panel

Maximum

Viewing

Angles

Signal

Input

Connector

Maximum

Resolution

Video

Bandwidth

Display

Area

Power

Voltage

Power

Consumption

Operating

Conditions

Storage

Conditions

Dimensions

Weight

ADI,

15.0 inch

diagonal

viewable

screen,

Anti-glare

TFT

Active

Matrix

Panel,

0.297

pixel

pitch,

TDK

Inverter

Left

60°

Right

60°

45°

Down

55°

Video

RGB

analog,

0.7

Vp-p,

ohms

Sync

H/V

separate

composite

sync,

TTL

Horizontal

30~62

kHz

Vertical

50~75

Mini

D-Sub

1024x768

100

MHz

nominal

304.4mm

(H)

228.1mm

(V)

100~240Vac

(auto

switch),

12Vdc

max.

Temperature

325

1047

(07

407)

Humidity

10%

90%

(no

condensation)

Altitude

10,000

feet

Temperature

-4&

+1402

(-202

+607)

Humidity

10%

90%

(no

condensation)

Altitude

10,000

feet

Physical

390mm

(W)

372mm

(H)

138mm

(D)

5.0

Page

(Confidential

Not

Copy:

Service

Manual

VG150

SCREEN

DISPLAY

ViewSonic

April

1999

Version

1.0

OSD

(On

Screen

Display)

function

supported

each

the

TFT

LCD

analog

display

monitors

and

controlled

four

easy

use

buttons

—

Power,

Function,

Select

(+),

Select

(-),

Auto.

Sub-Funetion

Auto

Sync

Contrast

Brightness

OSD

H-POS

OSD

V-POS

Color

LCD

Adjust

Preset

Red

Green

Blue

Size

Position

Fine

Tune

Auto

sync

Invisible

Smoothing

Information

Language

Recall

Main

Page

(Contidential

Not

Copy,

100

ON/OFF

ViewSonic

Service

Manual

April

1999

Version

1.0

VG150

FACTORY

PRESET

TIMINGS

This

timing

chart

already

preset

for

the

TFT

LCD

analog

display

monitors.

Timing

Horizontal

Vertical

Polarity

|Frequency|

Polarity

Frequency

VGA

640x350

31.47

kHz

70.08

VGA

720x400

31.46

70.08

VGA

640x400

31.46

70.08

VGA

640x480

31.47

60.05

VESA

640x480

37.86

72.81

VESA

640x480

37.50

75.00

MAC

640x480

35.00

66.66

VESA

800x600

35.15

56.25

VESA

800x600

37.87

60.31

VESA

800x600

48.07

72.18

VESA

800x600

46.87

75.00

VESA

1024x768

48.36

60.00

VESA

1024x768

56.47

70.06

SVGA

1024x768

58.03

71.94

VESA

1024x768

60.02

75.02

MAC

1024x768

60.24

74.92

Page

{Confidential

Not

Copy,

Service

Manual

VG150

ASSIGNMENT

ViewSonic

April

1999

Version

1.0

The

TFT

LCD

analog

display

monitors

use

Mini

D-Sub

connector

video

Description

input

source.

ako

B&B

WwW

Red

Green

Blue

Ground

R-Ground

G-Ground

B-Ground

Connection

Ground

Connection

(SDA)

H-Sync

(Composite

Sync)

V-Sync

(SCL)

Page

{Confidential

Not

Copy,

ViewSonic

Service

Manual

April

1999.-

Version

1.0

VG150

BLOCK

DIAGRAM

COMPLETE

TFT

LCD

DISPLAY

UNIT

Outlet

Adaptor

see

nee

;

12V

favarar

700Vac

}

Main

Board

Digital!

ter

Signal’

LCD

Panel

{

MAIN

BoaRD

(TFT

LCD

DisPLay

ANALOG

INTERFACE

CONTROL

BOARD)

G-anolog

B-anolog

Digital

Rout

Control

Data

out

registers

processor

Bout

Control

Unit

Dot

CLK

H-Sync-in

V-Sync-in

—

CPU

haan

Clock

generator

Soilless

cog

H-Sync-out

|_vesyne

eee

vee

icp

pos

Data

Enabie

Page

‘Confidential

Not

Copy,

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