
TFT-LCD Monitor
14
Troubleshooting
Problem
Solution
Power LED is dark.
No picture.
Check the power connection (Refer to
Introduction
)
OSD, “check cable.” is
displayed on the screen.
Check the computer power is on.
Message, “No cable.” is
displayed on the screen.
Check the signal cable between monitor and computer.
(Refer to
Introduction
)
Screen looks to be run down.
Perform Auto-config.
Screen is not clear.
Remove attaches to the signal line(Video extension cable and others)
and switch on.
Perform Auto-config.
Adjust clock and PHASE.
Display is unstable and
trembling.
Check the resolution and frequency of computer and video card, and set up
again refer to the current monitor mode and
Color is irregular.
Double images or ‘ghosts’.
Check the resolution and frequency of computer and video card, and set up
again in reference to the current monitor mode and
Picture is dark.
Picture is biased or cut or too
wide.
Perform Auto-config.
Power LED turns into Green
blinking.
No SOUND.
Check the voice signal connection code or