Hitachi C29-F880SN - Manual (Page 17)

17
TROUBLESHOOTING
IMPORTANT NOTES
The following problems do not always indicate a hardware failure. Therefore, please use the troubleshooting
guide below before calling for repair service.
If, after following the guide none of the remedies work, unplug the TV set and call for service.
NOISE OR INTERFERENCE:
IGNITION NOISE
White spots and horizontal streaks may appear on
the screen. Usually this is caused by interference
from automobile, neon lamps or
other electrical
appliance. So, the antenna should be installed away
from such interference sources.
SNOW
Small dots may appear on the
entire
screen. Check the
coaxial cable or antenna
installment and the direction.
RADIO FREQUENCY INTERFERENCE
The
interference produces
moving ripples or diagonal
streaks. This is not caused
by the receiver but is caused
by interference from other
signals or radio.
VCR:
When the VCR test signal
(TSG) is received, the lower
side of the test pattern is
distorted as shown in the
figure.This is not amalfunction
and the playback picture is
not influenced by it.
GHOST:
Please change the direction,
height or position of the
antenna. Reflections from
building or mountains might
cause this phenomenon. A
highly directional antenna may
improve the reception.
SOUND IS HEARD (BUZZER) BUT NO
PICTURE:
Please check whether the
brightness and contrast
control are properly
adjusted, and the antenna
is connected into plug
properly.
NO PICTURE AND NO SOUND:
Please check that the TV
receiver is plugged in and
that the indicator on the front
panel of TV lights is red.
NO COLOUR PICTURE OBTAINABLE
DURING A COLOUR PROGRAM:
Please check that if the input
signal is too weak. Please
check the
colour control is
adjusted properly. Please fine
tune the frequency with the
method of the fine tuning. For
multi-system models, check
that the system selected
is
correct, including colour and
audio systems.