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APPENDIX
Video Mode
Resolution
Refresh Rate
Horizontal
Vertical
HDTV
1920
1080
60
HDTV
1920
1080
24
HDTV
1920
1080
25
HDTV
1920
1080
30
6.3 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 34.
The displayed texts are
blurry.
• For VGA input, press the button on the keypad to auto-adjust the
display.
• Adjust the IMAGE SETTING (see page 34).
The OSD menu can’t be
called out.
• The OSD is locked. To unlock the OSD, see page 25.
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 21 or 42).
• Check if the
AUDIO SETTING
>
AUDIO
setting is set to
OFF
(see page
42).
• For VGA or DVI input, check the audio setting of the computer.
• For HDMI or DisplayPort input, select the correct audio input source
(see page 42).
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).
