Reception Disturbances; Care And Maintenance - Toshiba MW20FN1 Owner's Manual

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Reception disturbances

Most types of television interference can be remedied by adjusting the height and position of the VHF/UHF antenna.
Outdoor antennas are recommended for best results. The most common types of television interference are shown below.
If one of these symptoms appear when the unit is connected to a Cable TV system, the disturbance may be caused by the
local Cable TV company broadcast.
IGNITION
Black spots or horizontal streaks may appear, the picture may flutter or drift.
Usually caused by interference from automobile ignition systems, neon lamps or
AC powered tools and appliances such as drills or hair dryers.
GHOSTS
Ghosts are caused by the television signal following two paths. One is the direct
path and the other is reflected by tall buildings, hills or other large objects.
Changing the direction or position of the antenna may improve the reception.
SNOW
If the TV/VCR/DVD is located far from the TV station, in a fringe reception area
where the signal is weak, small dots may appear in the picture.
If the signal is extremely weak, the installation of a larger external antenna may
be necessary.
RADIO FREQUENCY INTERFERENCE (RFI)
Caused by two-way radios, this type of interference produces moving ripples or
diagonal streaks in the picture. Some cases may cause a loss of contrast in the
picture. Changing the direction and position of the antenna or installing an RFI
filter may improve the picture.
PICTURE SIZE VARIATION
A slight picture size variation is normal when you adjust the CONTRAST or
BRIGHTNESS settings.

CARE AND MAINTENANCE

To prevent fire or shock hazard, disconnect the unit from the power source before cleaning.
The finish on the cabinet may be cleaned with mild soap and a soft, damp cloth and cared for as other furniture. Use caution
when cleaning or wiping the plastic parts.
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