Reception Disturbances - Hitachi Ultravision C55M6 Mode D'emploi

Reception disturbances

NOTE:
• The TV set can generate sound distortion in external devices such as a radio. Please
separate radio equipment from the TV set to a considerable distance.
EN34
IGNITION NOISE:
Black spots or horizontal streaks may appear, picture may
flutter or drift. Usually caused by interference from automobile
ignition systems, neon lamps, electrical drills, and other electrical
appliances.
GHOSTS:
Ghosts are caused by the television signal following two paths.
One is the direct path and the other is reflected from tall buildings,
hills or some other objects. Changing the direction or position
of the antenna may improve reception. Ghosting may also be
caused by defects in the antenna system such as unshielded
leads or connecting several sets to the same antenna without
using multiple antenna couplers.
SNOW:
If your receiver is located in the fringe area of a television station
where the signal is weak, your picture may be marred by the
appearance of small dots. When the signal is extremely weak,
it may be necessary to install a special antenna to improve the
picture.
RADIO FREQUENCY INTERFERENCE:
The interference produces moving ripples or diagonal streaks,
and in some cases, causes loss of contrast in the picture.
PREVENTION OF AN OBSTACLE TO RADIO RECEIVERS
This television has been designed pursuant to the FCC class
B Rules. This is to prevent a problem to Radio receivers. If this
television causes a problem to Radio receivers, then take the
following steps:
• Keep the television away from Radio.
• Adjust Radio antennas in order for the television not to receive
interference.
• The antenna cable of Radio should be kept away from the
television.
• Use a coaxial cable for antenna.
You can check if this television influences Radio receivers by
turning off all other equipment other than the television. If you find
a problem receiving Radio when using the television, check the
instructions mentioned above.
BLOCK NOISE or FREEZE (DIGITAL INPUT):
Fuzzy blocks may appear in some area or the whole area of the
screen. This is usually caused by interference from automobile
ignition systems, neon lamps, electrical drills, ghosting of the
image and lost or weak receiving signals.