Clarion VRX775VD Owner's Manual & Installation Manual page 65

TV/VTR (When connecting an optional TV tuner, etc.)
Problem
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.
When the TV tuner is
connected, 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.
Cause
The parking brake is not
engaged.
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
Measure
Check that the parking brake is engaged.
Adjust the brightness properly.
The temperature inside the vehicle may be 0°C or
lower. 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 Color 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 liquid crystal 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%).
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