59
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 k
e y to wak
e up the computer.
Image position is incorrect.
• Adjust the H. POSITION and V. POSITION values. See IMAGE
SETTING on page 42.
The displayed texts are
blurry.
• For VGA input, press the
button on the k
e ypad to auto-adjust the
display.
• Adjust the IMAGE SETTING (see page 42).
The OSD menu can’t be
called out.
• The OSD is lock
e d. To unlock
the OSD, see page 33.
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 29 or 50).
• Check
if the
AUDIO SETTING
>
AUDIO
setting is set to
OFF
(see page
50).
• 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 50).
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 47).
