Philips 43PFT4001/60, Руководство по обслуживанию

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3.
3. 3.
3. Protection
Protection Protection
Protection or
or or
or without
without without
without light
light light
light (refers
(refers (refers
(refers to
to to
to the
the the
the disappearance
disappearance disappearance
disappearance of
of of
of image
image image
image several
several several
several seconds
seconds seconds
seconds
after
after after
after the
the the
the emergence
emergence emergence
emergence of
of of
of image)
image) image)
image)
4.
4. 4.
4. White
White White
White panel
panel panel
panel
The image disappeared immediately after the
emergence; check the plug of high-voltage switch board
for striking sparks and poor contact
No problems identified, replace high-voltage
board; if the fault remains, check the contact
line of back light of LCD for any damage, and
replace LCD board.
If there is spark striking,
replace high-voltage board
YES NO
White panel refers to the back light works
without visible signal and just show white
screen. Check the voltage of socket for flat
cable connecting the main board to screen
for abnormality
Check the interface between main board
and connect line for any looseness,
shedding, if no abnormity existed,
replace LCD screen
Check the power supply chip of
control screen or replace main
board
YES NO
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