46
APPENDIX
6.2 Troubleshooting
Problem
Possible Cause and Solution
No picture.
• LED indicator is OFF.
• Check if the LCD display is turned ON.
• Check if the power cord is properly connected to the LCD display.
• Check if the power cord is plugged into the power outlet.
• LED indicator is
AMBER.
• Check if the computer is turned ON.
• Check if the computer is in standby mode, move the mouse or press
any key to wake up the computer.
Image position is incorrect.
• Adjust the H. POSITION and V. POSITION values. See IMAGE
SETTING on page 30 (for VGA source) or page 31 (for video signals).
The displayed texts are
blurry.
• For VGA input, touch
on the keypad to auto-adjust the display.
• Adjust the IMAGE SETTING (see page 30).
The OSD menu can’t be
called out.
• The OSD is locked; unlock the OSD (see page 18).
Red, blue, green, white
dots appear on screen.
• There are millions of micro transistors inside the LCD display. It is
normal for a few transistors to be damaged and to produce spots. This
is acceptable and is not considered a failure.
No audio output.
• Check if the volume is set to 0 (see page 18 or 36).
• Check if AUDIO is set to OFF (see page 36).
• For VGA or DVI input, check the audio setting of the computer.
PIP mode does not work.
• The main and sub input source signals are not compatible to be
displayed together in PIP mode. Check the PIP Compatibility Table for
details (see page 34).
Cannot adjust Backlight
setting.
• AUTO BRIGHTNESS setting is ON, disable AUTO BRIGHTNESS (see
page 39).
The displayed picture looks
distorted.
• Adjust the aspect ratio (see page 32).
Dew formed on or inside
the LCD display.
• This normally happens when the LCD display is moved a cold room to
a hot room temperature. Do not turn ON the LCD display, wait for the
dew condensation to disappear.
Mist formed inside the
glass surface.
• This happens due to humid weather conditions. This is a normal
occurrence. The mist will disappear after a few days or as soon as the
weather stabilizes.
