Haier HLC22R - Page 39

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B/L wire
damaged
B/L wire damaged Operation abnormal or systemic noise
B/L wire
open
Without backlight Operation abnormal or systemic noise
B/L shut
down
B/L shutdown in
sometime
Short bitween lamp housing and wire, Because
consume power too much
F/M
F/M in
B/L ,white,balck
Rotundity or
wirelike
F/M in B/L unit
Failure Mode
Part Name Description Phenomena Failure cause
Light
leakage
Brightness at
bottom of LCM
brighter than
normal
B/L unit badness
Uniformity
B/L brightness
asymmetric
Sheet in B/L unit is uneven
Mechanlcal
or B/L
Mount hole
Lack screw or
screw damage
*Lack screw
Screw damage