DH-LDHxx-TAI200
20
8.2. Troubleshooting
Symptom
Possible Cause
Remedy
No picture is displayed
1. The power cord is disconnected.
2. The main power switch on the back of the
display is not switched on.
3. The selected input has no connection.
4. The display is in standby mode.
1. Plug in the power cord.
2. Make sure the power switch is
switched on.
3. Connect a signal connection to the
display.
Interference displayed on the display or audible
noise is heard
Caused by surrounding electrical appliances or
fluorescent lights.
Move the display to another location to
see is the interference is reduced.
Color is abnormal
The signal cable is not connected properly.
Make sure that the signal cable is attached
firmly to the back of the display.
Picture is distorted with abnormal patterns
1. The signal cable is not connected properly.
2. The input signal is beyond the capabilities of
the display.
1. Make sure that the signal cable is
attached firmly.
2. Check the video signal source to see
if it is beyond the range of the display.
Please verify its specifications with this
display’s specification section.
Can hear sound, but no picture
Improperly connected source signal cable.
Make sure that both video inputs and
sound inputs are correctly connected.
Can see picture but no sound is heard
1. Improperly connected source signal cable.
2. Volume is turned all the way down.
3. No external speaker connected.
1. Make sure that both video inputs and
sound inputs are correctly connected.
2. Press
and press right arrow
button.
3. Connect external speakers and adjust
the volume to a suitable level.
Some picture elements do not light up
Some pixels of the display may not turn on.
This display is manufactured using
an extremely high level of precision
technology: however, sometimes some
pixels of the display may not display. This is
not a malfunction.
After-Images can still be seen on the display
after the display is powered off. (Examples
of still pictures include logos, video games,
computer images, and images displayed in 4:3
normal mode)
A still picture is displayed for an over extended
period of time
Do not allow a still image to be displayed
for an extended period of time as this can
cause a permanent after-image to remain
on the display.