Hitachi 42HDX61, 55HDX61 Indoor Furnishings User Manual


 
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RECEPTION PROBLEMS
• 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 monitor has been designed pursuant to the FCC class B Rules. This is to prevent a
problem to Radio receivers. If this monitor causes a problem to Radio receivers, then take the
following steps:
- Keep the monitor away from Radio.
- Adjust Radio antennas in order for the monitor not to receive
interference.
- The antenna cable of Radio should be kept away from the monitor.
- Use a coaxial cable for antenna.
You can check if this monitor influences Radio receivers by turning off all other equipment other
than the monitor.
If you find a problem receiving Radio when using the monitor, check the instructions mentioned
above.
• The display image appears
scrolling diagonal.
• Text displayed across the
screen appears vertically
streaked, with the characters
in vertical columns blurred.
• Adjust the horizontal clock and clock phase.
(Adjust the horizontal clock first, the clock
phase next.)
(RGB input)
• Text displayed across the
screen appears blurred.
• A fine pattern flickers when
displayed on the screen.
• Adjust the clock phase for the clearest
viewing.
(RGB input)
• Vertical stripes appear, depending on the
screen contents.
• The plasma display panel is lighting the
phosphors by the discharge of internal
radiation. Depending on the screen
contents, in rare cases this may cause
vertical stripes to appear because of failure
to light. Please note that this is not a
malfunction.
• Coarse horizontal stripes appear in FULL
display.
• Adjusting the clock phase will reduce the
horizontal stripes.
(RGB input)
• The display dims to make the picture
invisible during special playback of a
VCR (FF, REW).
• This condition may occur when the unit is
connected to a VCR with component output,
such as 480i, but it is not a failure. But when
it occurs, switch to composite output or S1
(S2) output).