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Troubleshooting - LG 32MB24 Owner's Manual

Lcd led monitor
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TROUBLESHOOTING

Check the following before calling for service.
No image appears
Is the power cord of the display
connected?
Is the power indicator light on?
Is the power on and the power
indicator Red?
Is the power indicator flickering?
Do you see an "OUT OF RANGE"
message on the screen?
Do you see a "NO SIGNAL"
message on the screen?
Do you see a "OSD LOCKED" message on the screen?
Do you see "OSD LOCKED" when
you push MENU button?
Display image is incorrect
Display Position is incorrect.
On the screen background, vertical
bars or stripes are visible.
Any horizontal noise appearing in
any image or characters are not
clearly portrayed.
NOTE
Vertical Frequency: In order to display an image, the screen must be refreshed dozens of times per
y
second like a fluorescent lamp.
The number of times the screen is refreshed per second is called vertical frequency or refresh rate
and is represented by Hz.
Horizontal Frequency: The time it takes to display one horizontal line is called the horizontal cycle.
y
The number of horizontal lines displayed in one second can be calculated by dividing one by the hori-
zontal cycle. This is called horizontal frequency and is represented by kHz.
y Check and see if the power cord is connected properly to the power
outlet.
y Press the Power button.
y Adjust the brightness and the contrast.
y If the display is in power saving mode, try moving the mouse or
pressing any key on the keyboard to bring up the screen.
y Try to turn on the PC.
y This message appears when the signal from the PC (video card) is
out of horizontal or vertical frequency range of the display. See the
'Specifications' section of this manual and configure your display
again.
y When the monitor is on "No-Signal" in 5 minutes, the monitor goes to
DPM mode.
y You can secure the current control settings, so that they cannot be
inadvertently changed. You can unlock the OSD controls at any time
by pushing the MENU button for several seconds: the message "OSD
UNLOCKED" will appear.
y Press the AUTO button to automatically adjust your display image to
the ideal setting.
y Press the AUTO button to automatically adjust your display image to
the ideal setting.
y Press the AUTO button to automatically adjust your display image to
the ideal setting.
y Check Control Panel ► Display ► Settings and adjust the display
to the recommended resolution or adjust the display image to the ideal
setting. Set the color setting higher than 24 bits (true color).
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TROUBLESHOOTING

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