Protection Without Lights; White Panel - Philips 32PHT4001/60 Service Manual

3. 3. 3. 3. Protection Protection Protection or or or or without Protection without without
without light
after the emergence emergence of of of of image)
after the after after the emergence the emergence
NO
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.
4. 4. 4. 4. White White White panel panel

White panel

panel
YES
Check the interface between main board
and connect line for any looseness,
shedding, if no
replace LCD screen
light light (refers (refers (refers to to to to the the the
light (refers the disappearance
image)
image) image)
The image disappeared
emergence; check the plug of high-voltage switch board
for striking sparks and poor contact
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
abnormity existed,
17
disappearance of of of of image disappearance disappearance image image
image several
immediately
If there is spark striking,
replace high-voltage board
Check the power supply chip of
control screen or replace main
board
several several seconds seconds
several seconds seconds
after the
YES
NO