Troubleshooting - Acoustic Research AR4200 Operating Instructions Manual

42 inch plasma tv
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Troubleshooting

Before calling for repair service, check the following items for possible remedies to an
encountered symptom.
Symptoms
"Ghost" or double images
No power
No picture
Good picture but no sound
Good sound but poor color
Poor picture
Horizontal dotted line
Television not responding to
remote control
Snowy picture and noise
No stable or not
synchronized VGA picture
No output from one
of the speakers
Note:
If your problem is not solved, restart your TV by turning it off and then on
the POWER SWITCH
.
Never attempt to repair a defective TV yourself.
42
!
This may be caused by obstruction to the antenna due to high
rise buildings or hills. Using a highly directional antenna may
improve the picture.
!
Check that the AC power cord is plugged into the mains
socket.
!
Unplug the power cord, wait for 60 seconds. Then re-insert plug
into the mains socket and turn on the unit again.
!
Check antenna connections at the rear of the unit to see if it
is properly connected to the unit.
!
Possible broadcast station trouble. Try another channel.
!
Adjust the contrast and brightness settings.
!
Check the Closed Captions control. Some TEXT modes could
block the screen.
!
Select a correct input.
!
Is a non-compatible signal being used?
!
Increase the VOLUME.
!
Check that the unit is not muted.
!
Check Whether the sound is output to headphone
• Adjust the contrast, color and
brightness settings.
!
Sometimes, poor picture quality occurs when having
activated an S-VHS camera or camcorder connected and
having connected another peripheral at the same time. In this
case, switch off one of the other peripherals.
!
Check whether the room is too bright
!
This may be caused by electrical interference (e.g. hairdryer,
nearby neon lights, etc.)
!
Turn off the equipment.
!
Check whether the batteries are working. Replace if
necessary.
!
Clean the remote control sensor lens on the unit.
!
Do not use the remote control under strong or fluorescent
lighting.
!
The batteries should be inserted with polarity (+, -) aligned.
!
Check the antenna connection.
!
Check if you have selected the correct VGA mode in your
PC.
!
Adjust Balance in the
Check item
audio
menu.
using

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