Haier MSD318 - Page 64

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Failure Mode
Part Name Description Phenomena Failure cause
Mechanlcal
Nolse
When
turn panel,appear
cacophony
Caused
by Mechanica
noise of backlight
unit
Ripple Connectric circle
Causeed by
between
mechanism and
pannel
B/L off B/L lose action
*Connect
badness
between wire and
electrode
B/L dark B/ L brightness
darker than
normal
*Connect
badnessShort
between wire and
electrode
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
inB/L ,white,balck
Rotundity
or wirelike
F/M in B/L unit