Troubleshooting - Toshiba TekBright User Manual

Troubleshooting

Some problems you may encounter when using your TekBright monitor are
relatively easy to identify and solve. Before sending your TekBright monitor
for servicing, please check the troubleshooting list below to see if you are
able to diagnose and remedy the problem.
VGA Mode
Problems
No Picture
Abnormal
Picture
Abnormal
Sound
Current Status
LED ON • Using OSD, adjust brightness and contrast
LED OFF • Check the monitor's power switch.
• Verify that the AC power cord is properly
LED displays • Make sure the video signal cable is
amber color
• Make sure the computer system's power
• Verify that the specification of graphics
Unstable Picture
Display is • Using OSD, adjust Resolution, Clock,
missing, center
shift, too small or
too large in
display size
• If the full-screen image is missing, use
• Wait for a few seconds after adjusting the
No sound, or • Verify that the audio cable is connected to
sound level is too
low
• Check to see if the volume setup of the
Remedy
to maximum or reset to their default settings.
connected to the monitor.
properly connected at the back of monitor.
is ON.
adapter and monitor are in compliance. If
they are not in compliance, it may cause an
input signal frequency mismatch.
Clock-Phase, Horizontal Position and
Vertical Position with non-standard
signals.
OSD to select other resolution or other
vertical refresh timing.
size of the image before changing or
disconnecting the signal cable or turning
OFF the monitor.
both the monitor and the host PC.
host PC is in the minimum position and try
to raise the volume level.
User's Manual
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