Before sending your LCD monitor for repair, go through the troubleshooting checklist
below to see if you can diagnose the problem.
LED lights up
is too large or
No audio, or
the volume is
Press the standby button to turn on.
Check the power switch.
Ensure that the AC power adapter is
properly connected to the monitor.
Check that the video signal cable is
properly connected to the back of the
Check whether the computer system's
power is on.
Check whether the graphics card
specifications meet the monitor
requirements. If they do not, the input
signal frequency may not match.
Use OSD to adjust Resolution, Timing,
Timing Phase, H. Position, and V.
Position for non-standard signals.
When the full screen image disappears,
use the OSD to select another resolution
or vertical frequency.
Before changing or disconnecting the
signal cable or turning off the monitor,
resize the image and wait for a few
Check whether the audio cable is
connected to the PC.
Check if the volume of the PC is set
to minimum, and try to increase the