Haier 55DA5550, Service Manual

Page: 50 / 52

Description
Caus
ed
by Mecha
nica
nois
e of backli
ght unit
Part Name
Phenomena
Failure
cause
Mechanlcal
Nolse
W
hen
turn pan
el,a
pp
ear caco
ph
ony
Ripple Connectric
circ
le
Caus
eed by
betwe
en
mecha
nism an
d pan
ne
l
B/L off
B/L lose action
*Co
nnect
bad
ness
betwe
en wir
e a
nd el
ectrod
e
B/L dark
B/L brightness
darker than
normal
*Co
nnect
bad
nessS
hort betwe
en wir
e a
nd el
ectrod
e
B/L
w
ir
e
da
ma
ge
d
Without backl
ight
B/L
w
ir
e
da
ma
ge
d
B/L wire op
en
Operation abn
ormal
or systemic noise
Operation abn
ormal
or systemic noise
Short bitwe
en l
a
mp ho
usin
g a
nd wir
e, Becau
se
consum
e pow
e
r too much
B/L shut dow
n
B/L shutdow
n i
n
sometime
F/M
F/M
inB/L ,white,bal
ck Rotundity
or wirel
ike
F/M in B/L unit
Service Manual
48
Model No.: 55DA5550