Monitor Troubleshooting - LG Chromebase 22CV241 Installation Manual

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Troubleshooting

Monitor Troubleshooting

Is the product's power cord connected
correctly?
Is the power lamp on?
Is the power on and the power lamp is lit
either blue or green?
Is the power lamp blinking?
Do you see the Monitor Frequency
Range Exceeded message on the screen?
Do you see the Check Signal Cable
Connection message on the screen?
Are there afterimages on the screen even
after turning the monitor off?
NOTE
y
Vertical Frequency
y A monitor screen must be refreshed dozens of times every second like a fluorescent lamp to allow users to
see the picture.
y This rate of screen refresh is called the Vertical Frequency or Refresh Rate, and is measured in Hz.
Horizontal Frequency
y The time taken to display the full length of a single horizontal line on the screen is called the horizontal cycle.
The Horizontal Frequency, measured in kHz, is the inverse of the horizontal cycle and shows the number of
horizontal lines displayed on the screen every second.
The screen is unstable and shakes. / The screen shows ghost images.
Did you set the correct screen resolution?
The screen is blank
• Check if the power cord is connected correctly to a wall outlet.
• Check the Power button.
• Adjust the screen brightness and contrast.
• The power lamp blinks when the Internet Monitor is in standby
mode. When you press the power button, the monitor turns on
again within 2 to 3 seconds. Using a keyboard or mouse does
not exit standby mode.
• This occurs when the signal sent by the PC (video card) exceeds
the range of horizontal or vertical frequency supported by the
monitor, so check the Product Specifications of this manual
and change the settings.
• This occurs when the signal cable between the PC and the
monitor is not correctly connected or unplugged, so check and
reconnect the signal cable.
There are afterimages on the screen
• Please be careful as displaying a fixed image on the screen for
a prolonged period of time can damage the monitor and leave
afterimages on the screen. Use screen savers to extend your
monitor's working life.
• Refer to User's Guide > Using the Monitor > Setting the Resolu-
tion and set the screen to the recommended resolution.