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Owner’s manual
18 TB741P/TB742P/TB743W
TV
Problem Cause Measure
The image is not
displayed.
The display is
dark.
The color of the
display is light or
a shade of color
is not good.
When the VTR is
connected, the
image is
disturbed.
The image gets
unclear.
The TV tuner has
a double or triple
image.
The TV tuner has
spots or stripes in
the image.
There are red,
green, and blue
points in the
display.
The parking brake is not
pulled.
The brightness control is too
low.
The operating condition is
not good.
The headlight of the vehicle
is lit.
The color is not adjusted
adequately.
Improper NTSC/PAL setting
Bad receiving condition
Bad receiving condition
Presence of jamming
Check that the parking brake is applied.
Adjust the brightness properly.
The temperature inside the vehicle may be 0˚C or
less. Set to an appropriate temperature (25˚C or so)
and check it again.
The display is made dark at night to prevent the
glare (When the headlight of the vehicle is lit in the
daytime, the display gets dark).
Check that COL and HUE are adjusted properly.
Set the NTSC/PAL properly according to the VTR.
A radio wave may not reach sufficiently due to
obstruction of mountains or buildings. Check it again
at a place where a radio wave can be received
properly.
It may be under the influence of radio wave reflected
by mountains or buildings. Check it again after
changing place or direction.
It may be under the influence from automobiles,
streetcar, power cable, neon sign, and so forth.
Check it again after changing place.
This is not a failure, but a phenomenon peculiar to a
liquid crystal panel (The LCD panel is produced
according to technology with very high precision.
Note that, though there are effective pixels of
99.99% or more, pixel missing or normally lit pixels
account for 0.01%).