Troubleshooting - LG M4210LG Owner's Manual

● Is the product power cord connected?
● Is the power indicator light on?
● Power is on, power indicator is blue but the
screen appears extremely dark.
● The power indicator amber?
● Does the 'Out of range' message appear?
● Does the 'Check signal cable' message
appear?
'Unknown Product' message appears when the product is connected.
● Did you install the driver?
● The 'Key Lock On' message appears when
pressing the Menu button.
* Vertical frequency: To enable the user to watch the product display, screen image should be changed
Note
tens of times every second like a fluorescent lamp. The vertical frequency or refresh rate is the times of
image display per second. The unit is Hz.
* Horizontal frequency: The horizontal interval is the time to display one vertical line. When 1 is divided
by the horizontal interval, the number of horizontal lines displayed every second can be tabulated as
the horizontal frequency. The unit is kHz.

Troubleshooting

No image is displayed
• See if the power cord is properly connected to the outlet.
• See if the power switch is turned on.
• May need service.
• Adjust brightness and contrast again.
• Backlight may need repair.
• If the product is in power saving mode, move the mouse
• Turn both devices off and then back on.
• The signal from the PC (video card) is out of the vertical
• The signal cable between PC and product is not
• Press the 'INPUT' menu in the remote Control to check
• Install the product driver, which is provided with the
• See if the plug&play function is supported by referring
'Key Lock On' message appears.
or press any key.
or horizontal frequency range of the product. Adjust the
frequency range by referring to the Specifications in this
manual.
* Maximum resolution
RGB : 1920 x 1080 @ 60 Hz
HDMI/DVI : 1920 x 1080 @ 60 Hz
connected. Check the signal cable.
the input signal.
product, or download it from the web site. (http://www.
lge.com)
to the video card user manual.
• The control locking function prevents unintentional OSD
setting change due to careless usage. To unlock the
controls, simultaneously press the Menu button and
button for several seconds. (You cannot set this function
using the remote control buttons. You can set this function
in the product only.)
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