Troubleshooting - AOC 50X8050 User Manual

7.2.

Troubleshooting

Symptom
No picture is displayed
Interference displayed on
the display or an audible
noise is heard
Color is abnormal
Picture is distorted with
abnormal patterns
Can hear sound, but no
picture
Can see picture but no
sound is heard
Some picture elements
do not light up
Possible Cause
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 the standby
mode.
Caused by surrounding electrical
appliances or fluorescent lights.
The signal cable is not connected
properly.
1. The signal cable is not
connected properly.
2. The input signal is beyond
the capabilities of the display.
Source signal cable is connected
improperly.
1. Source signal cable is
connected improperly.
2. Volume is turned all the way
down.
3. {Mute} is turned on.
4. No external speaker is
connected.
Some pixels of the display are off. This display is designed using an
29
Remedy
1. Plug in the power cord.
2. Make sure that the power
switch is switched on.
3. Connect a signal connection to
the display.
Move the display to another location
to see if the interference is reduced.
Make sure that the signal cable is
attached firmly to the back 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.
Make sure that both video inputs
and sound inputs are correctly
connected.
1. Make sure that both video
inputs and sound inputs are
connected correctly.
[ ] [
2. Press or
hear sound.
3. Switch MUTE off by using the
[ ] button.
4. Connect external speakers and
adjust the volume to a suitable
level.
extremely high level of precision
technology: however, sometimes
some pixels of the display may not
display. This is not a malfunction.
]
button to