Acer AL1717 Посібник користувача - Сторінка 14

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TROUBLESHOOTING

Before sending your LCD monitor for servicing, please check the troubleshooting list

below to see if you can self-diagnose the problem.

Problems Current Status

LED ON

LED OFF

Picture

LED displays

amber color

Unstable Picture

Display is missing,

center shift, or too

small or too large

Abnormal

in display size

Picture

Abnormal

No sound, or

Sound

sound level is too

low

Remedy

Using OSD, adjust brightness and contrast to

maximum or reset to their default settings.

Check the power switch.

Check if AC power cord is properly connected

to the monitor.

Check if video signal cable is properly

connected at the back of monitor.

Check if the power of computer system is ON.

Check if the specification of graphics adapter

and monitor is in compliance which may be

causing the input signal frequency mismatch.

Using OSD, adjust RESOLUTION, CLOCK,

CLOCK-PHASE, H-POSITION and V-

POSITION with non-standard signals.

Using OSD, in case of missing full-screen image,

please select other resolution or other vertical

refresh timing.

Wait for a few seconds after adjusting the size of

the image before changing or disconnecting the

signal cable or powering OFF the monitor.

Check the audio cable with the host PC is

connected.

Check if the volume setup of the host PC is in

minimum position and try to raise the volume

level.

E-13

AL1717