Acer DBG DPBU II Manual de servicio - Página 4

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ACER X193HQ

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1.1 SCOPE

This document defines the design and performance

requirements for a 19W inch diagonal , flat panel monitor

.The display element shall be a WXGA(1366X768)

resolution TFT-LCD (Thin Film Transistor Liquid Crystal

Display).16.7M color images are displayed on the

panel.Video input signals are analog RGB (0.7Vp-p). When

the

systemis

systemis pow

powered-on , previously stored

ered-on , previously stored

parameters for a pre-defined mode will be recalled if the

operating mode is one of stored in memory( 21 factory , 9

users timing ).This monitor operates normal by non-

interlaced mode. DDC (Display Data Channel) function is

DDC2Bi compliance Power saving function complies with

the DPMS (Display Power Management Signaling)

standard.

1.2

GENERAL REQUIR

GENE

RAL

REQUIREMEN

EMENTS

1.2.1Test Condition

Brightness level & contrast level max. Full white

pattern test mode following spec. Warm up more than

1 hr, ambient light < 10 Lux , Luminance meter

CA110 or BM7 or same equipment .

1.2.2 Test Equipment

The reference signal source is a calibrated Chroma

2135 video generator or higher.The use of other

signal generators during qualification and production

is acceptable provided the product complies with this

specification.

1.3

ELECTRIC

ELEC

TRICAL

This

Thi

sectio

sec

tion

des

descr cribe

ibes

monitor block diagram in Figure 1 illustrates the various

electrical

sub-system.

sub-system

Signal

Red-Video

Green-Video

Blue-Video

Connection Detect

Connector Pin Description

D-SUB Description

Name

R ed -V id eo

R ed v ideo s ig nal in pu t

G ree n- Vi de o

G re en v id eo s ig na l i np ut

B lu e-Vid eo

B lu e v id eo sig nal in pu t

Not connect

C o nn ec ti on D e te ct

D et ec k V G A C a bl e h av e C o nn ec te d o r n o t

R ed -G ND

A na lo g s ig na l g ro un d f or t he R ed v id eo

G re en -G ND

A na lo g s ig na l g ro un d f or t he G re en v id eo

B lu e- GN D

A na lo g s ig na l g ro un d f or t he B lu e v id eo

+ 5V

+ 5V i np ut f ro m h os t s ys te m f or t he V ES A D DC 2 Bi f un ct io n

Sync-GND

Signal ground

Not connect

1 2

N C DD C -S D A

S D A s ig n al i n pu t f o r t h e V E SA D D C 2 B i f u nc ti on

1 3

H -S YN C

H or iz on ta l s ig na l i np ut f ro m t he h os t s ys te m

1 4

V -S YN C

V er ti ca l s ig na l i np ut f ro m t he h os t s ys te m

1 5

D DC -S CL

S CL s ig na l i np ut f or t he V ES A D DC 2 Bi f un ct io n

DVI-I/DVI-D(If using DVI-D cable,C1,C2,C3,C4,C5 is NC)

Signal

RX2-

RX2+

GND

SCL

SCA

Analog V-Sync(NC)

1. Product Specification

screen

the

ele

electr

ctrica

ical

requir

req

uireme

ement

1. Product Specification (continued)

Signal

Red-GND

Green-GND

DDC-SDA

Blue-GND

H-SYNC

+ 5V

V-SYNC

GND

DDC-SCL

Description

Signal

Analog Red(NC)

Analog Green (NC)

DVI Connect

Analog Blue (NC)

Analog H-Sync (NC)

RX0-

GND

RX0+

GND

The LCD monitor consists of an interface board , a power

board ,

funct

function key boar

ion key

The

interf

int

erface

ace

boa

board

bright

brightness

ness

control

contr

logic, audio functio

logic

funct

function

ion

contr

control, D

ol,

DDC a

approp

appropriate power to the

riate power to the

transmitting LVDS signals into LCD flat panel module to drive

the LCD display circuit .The power board will support main

power DC5V to interface board and drive the two CCFLs (Cold

Cathode Fluorescent Tube).The interface board provides the

power ON / OFF contr

power ON / OFF

control over the

DPMS LED indicator to function key board.

Monitor Specifications

Signal

Signa

Input

（Analog）

Video Input

Display Pixels

S y

yn e

n e

i g

Signal

Signa

Input

（Digital）

D i

is p

pl a

Connector

A C

I n

np u

I n

np u

o n

Audio Jack(Optional )

P o

ow e

C o

on s

su m

mp t

ti o

A C

i n

1 0

User'sControl

F r

ro n

O S

Pre-Defined Timing

the

1.3.1

Interface

Connectors

1.3.1.1 Power Connector and Cables

The AC input shall have an IEC/CEE-22 type male

power receptacle for connection to mains power.

The power cord shall be with length of 1.8+/-0.005

meters.

1.3.1.2 Video Signal Connectors and Cable

The

signa

signal c

At the end of the cable shall be a molded-over,

shielded,triple row, 15 position, D-subminiature

connector. The CPU connection shall have captive

screw locks, which will be adequate for hand

tightening. The monitor connection may use small

screws.

Connector Pin Assignment

D-SUB

No.

Symbol

Signal

Vih

Vil

Video

Note 1) Schmitt-Triggers Input, Supported 3.3V device

H(&V) sync output from PC

N o .

S y m b o l

F h

S c a n n in g H o riz o n ta l F re q u e n c y

F v

S c a n n in g V e rtic a l F r e q u e n c y

V ih

H i L e v e l In p u t

V il

L o w L e v e l I n p u t

V id e o

R G B A n a lo g V id e o L ev e l

N o t e 1 ) S c h m i t t- T r i g g e rs I n p u t , S u p p o rt e d 3 . 3 V d e v i c e H ( & V ) s y n c o u t p u t fr o m P C .

1.3.2.1 Video Signal Amplitudes

The three video inputs consist of Red ,Green , and Blue

signals, each with its own coaxial cable terminated at the

monitor. These video signals are analog levels, where 0

V corresponds to black , and 700 mV is the maximum

signal amplitude for the respective color, when each

signal is terminated by a nominal 75.0 ohms .For a given

monitor luminance levels are measured using this

defined video amplitud driving a monitor meeting the

termination requirements .The signal amplitude is not to

be readjusted to compensate for variations in termination

board and two speak

d and two

speaker(1W

er(1W)(wit

wil

will

house

hou

the

flat

fla

panel

pan

con

contro

, audio

function control (opt

n control

(option), key

and

to DC

conversio

conv

ersion to s

n to

whole board and LCD flat

ol over the

whole

whole mon

monitor and contr

itor and

H:31Hz~83Hz

V:56Hz~75Hz

(

)

Analog :07Vp-p

640x480 (VGA)~1366x768(WXGA)

gn a

S e

p a

ar a

at e

t e

S Y

N C

f o

T T

( N

o r

P )

H:31Hz~83Hz

V:56Hz~75Hz

(

)

Input Inpedance 75Ω

P i

x e

el s

l s

6 4

40 x

x4 8

(

( V

VG A

A) ~

)

~1 3

36 6

6x 7

76 8

8( W

(

WX G

GA )

A )

A C

1 0

00 V

V~ A

AC 2

24 0

1 0

5 0

0/ 6

60 H

, 3

3p i

A C

P o

ow e

nn e

ec t

c t

o r

D -

-S

U B

1 5

p i

& D

- D

Audio Input 3.6

00 V

V~ 2

24 0

0V )

V )

A c

ct i

iv e

v e

3 0

0W (

(w i

it h

t h

A u

ud i

io )

a c

ct i

iv e

v e

2 5

, P

Po w

we r

e r

S a

av i

in g

n g

E m

mp o

ow e

er i

in g

n g

, A

Au t o

u t o

A d

dj u

us t

s t

, A

Ad j

ju s

( -

( - )

), A

Ad j

ju s

( +

(

+) ,

)

,, M

Me n

C o

on t

n t

r a

as t

t, B

Br i

ig h

ht n

ne s

, P

Po s

si t

i t

i o

, C

Cl o

oc k

c k

, P

Ph a

as e

s e

Analog/Digital, RESET, Color ,Language select ,

Audio (Option ),ect.

≦

cable

able

shall

1.8

+/-

0.005

ACER X193HQ

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Item

Min Normal

Max

Horizontal Frequency

Vertical Frequency

Hi Level Input

2.0

5.0

Low Level Input

0.8

RGB Analog Video

Level

0.0

0.7

0.1

V i d e o I n p u t S i g n a l

I te m

M in

N o r m a l

M a x

3 0

9 4

5 5

7 6

0 .8

0 .0

0 .7

1 .0

)(with audio)

h audio)

trol

logic

log

ion), key

supply

upply

the

panel , and

control for

ol for

C o

or d

r d

< 2

, P

Po w

we r

e r

meters

mete

long.

Unit Remark

kHz Minimum range

Minimum range

Note 1)

75Ω to Ground

U n it

R e m a rk

k H z

M in im u m ra n g e

H z

M in im u m ra n g e

N o te 1 )

t o G r o u n d