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3.3
Troubleshooting (FAQ)
Problem
Power LED is not ON
The power LED lights amber and
there is no screen image
Screen image is too light or dark
Screen image bounces or a wave
pattern is present in the image
Screen image has color defects
(white does not look white)
No sound or sound is low
(VA24EHLB/VA24EHL only)
3.4
Supported Timing List
PC Supported Primary Timing
3-12
• Press the button to check if the monitor is in the
• Check if the power cord is properly connected to
• Check Power Indicator function in main menu OSD.
• Check if the monitor and the computer are in the
• Make sure the signal cable is properly connected
• Inspect the signal cable and make sure none of the
• Connect the computer with another available
• Adjust the Contrast and Brightness settings via
• Make sure the signal cable is properly connected to
• Move electrical devices that may cause electrical
• Inspect the signal cable and make sure that none of
• Perform Reset via OSD.
• Adjust the R/G/B color settings or select the Color
• Make sure the audio cable is properly connected to
• Adjust the volume settings of both your monitor and
• Make sure the computer sound card driver is
• Make sure the audio source is correct on the OSD.
Resolution
640x480
640x480
640x480
Possible Solution
ON mode.
the monitor and the power outlet.
Select "ON" to turn on power LED.
ON mode.
the monitor and the computer.
pins are bent.
monitor to check if the computer is properly
working.
OSD.
the monitor and the computer.
interference.
the pins are bent.
Temperature via OSD.
the monitor.
computer.
properly installed and activated.
Refresh Rate
60Hz
72Hz
75Hz
Horizontal Frequency
31.469kHz
37.861kHz
37.5kHz
Chapter 3: General Instruction
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