Acer Q276HL Manuel d'utilisateur télécharger pdf (Page 25)

EN-16

(VGA Mode)

TROUBLESHOOTING

Before sending your LCD monitor for servicing, please check the trouble-

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

ProblemsCurrent StatusRemedy

No Picture

LED ON·Using OSD, adjust brightness and contrast

to maximum or reset to their default

settings.

LED OFF·Check the power switch.

·Check if AC power cord is properly

connected to the monitor.

LED displays ·Check if video signal cable is properly

connected at the back of monitor.

·Check if the power of computer system is

ON.

Abnormal

Picture

Unstable

Picture

·Check if the specification of graphics

adapter and monitor is in compliance

which may be causing the input signal

frequency mismatch.

Display is

missing, center

shift, or too

small or too

large in display

size

·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.

Abnormal No sound, or · Check the audio cable with the host PCis

Sound(Only sound level is connected.

Audio-Input too low

· Check if the volume setup of the hostPC is

model)

in minimum position and try toraise the

(Optional)

volume level.

Amber

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Acer Q276HL Manuel d'utilisateur Page 25

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