LG CS788C Manual de usuario descargar pdf (Pagina 21)

Troubleshooting

Symptom:

Self

diagnostics

message.

Possible

causes:

The

signal

cable

is

not

connected.

Symptom:

OUT

OF

FREQUENCY

message

appears.

Possible

causes:

The

frequency

of

the

sync

input

is

outside

the

operating

range

of

the

monitor.

*Horizontal

Frequency:

30kHz-70kHz

*Vertical

Frequency:

50Hz-160Hz

Use

the

graphics

board's

utility

software

to

change

the

frequency

setting

(Refer

to

the

manual

for

graphics

board).

Symptom:

The

power

LED

is

illuminated

amber.

Possible

causes:

Display

power

management

mode.

These

is

no

sync

signal.

The

signal

cable

is

not

fastened

securely.

Check

the

computer

power

and

graphics

adapter

configuration.

Symptom:

The

image

on

the

SCREEN

is

not

centered,

or

too

small,

or

not

a

rectangle

shape.

Possible

Causes:

Image

adjustment

not

been

done

yet

in

the

current

operating

mode.

Use

the

SELECT

and

or

buttons

to

set

the

image

to

your

liking.

Symptom:The

monitor

doesn't

enter

the

power

saving

off

mode

(Amber).

Possible

Causes:Computer

video

signal

is

not

VESA

DPMS

standard.

Either

the

PC

or

the

video

controller

card

is

not

using

the

VESA

DPMS

power

management

function.

17

HF:120.8kHZ

VF:110.1HZ

OPERATING

FREQUENCY

HF:30-70kHZ

VF:50-160HZ

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