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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 32 (for VGA source) or page 33 (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 33).
•
The OSD menu can’t be
called out.
The OSD is locked; unlock the OSD (see page 19).
•
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 19 or 42).
•
Check if AUDIO is set to OFF (see page 42).
•
For VGA or DVI input, check the audio setting of the computer.
•
Nothing happens when I
press .
SOURCE DETECT setting is set to AUTO. To manually select the input
•
source signal, set SOURCE DETECT to MANUAL (see page 43).
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 39).
Cannot adjust Backlight
setting.
AUTO BRIGHTNESS setting is ON, disable AUTO BRIGHTNESS (see
•
page 45).
The displayed picture looks
distorted.
Adjust the aspect ratio (see page 20 or 36).
•
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.
