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CHAPTER FOUR SYMPTOMS AND CORRECTION
Symptom One：Display card of PC no image in DVI.
Reason and Resolve: If some display card of DVI can not receive the data when turning on
the TV, there is no output; if pull out the DVI line abruptly, there is also no DVI output; Before
starting PC, connect the DVI line with LCD TV steadily, So DVI can receive the correct date
from DDC（ Display Data Channel） when turning on the TV,DDC is in chassis 24LC21.
Symptom Two： No picture but sound, on LOGO when turning on the TV, background light is
bright.
Reason and Resolve: Check the connect line in up screen, and connect the line.
Symptom Three：No picture、no sound ,no snowflake in TV mode, but AV is normal.
Reason and Resolve: Check the outside of
high frequency
(also bus and power supply),
there is no problem ,but no output from
high
frequency, so the tuner is disabled.
Symptom Four：LCD TV can not be controlled.(inc red lamp is on but the TV is off, remote
control and local keys can not control the TV ,etc.)
Reason and Resolve：the LCD TV can not work abruptly, power off and turning it on again.
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