Acoustic Research AR4200 - Manual (Page 45)

Troubleshooting
Symptoms Check item
!
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.
“Ghost” or double images
!
!
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.
No power
!
!
!
!
!
!
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?
No picture
!
!
!
Increase the VOLUME.
Check that the unit is not muted.
Check Whether the sound is output to headphone Good picture but no sound
• Adjust the contrast, color and
brightness settings.
Good sound but poor color
!
!
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
Poor picture
! Check the antenna connection.
!
!
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.
Snowy picture and noise
Horizontal dotted line
Television not responding to
remote control
!
Check if you have selected the correct VGA mode in your
PC.
No stable or not
synchronized VGA picture
If your problem is not solved, restart your TV by turning it off and then on
.
using
the POWER SWITCH
Never attempt to repair a defective TV yourself.
Note:
No output from one
of the speakers
! Adjust Balance in the menu. audio
42
Before calling for repair service, check the following items for possible remedies to an
encountered symptom.