- 54 -
Failure Mode
Part
Name
Description
Phenomena
Failure cause
Mechanlcal
Nolse
When
turn panel,appear
cacophony
Caused
b y M e c h a n i c a
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 b r i g h t n e s s
darker than
normal
*
Connect
b a d n e s s S h o r t
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
S h o r t b i t w e e n
lamp housing and
w i r e , B e c a u s e
consume power
too much
F/M
F/M
inB/L ,white,balck
Rotundity
or wirelike
F/M in B/L unit
Summary of Contents for L42B1180
Page 13: ...3 4 LCD Panel 12 T420H W06 V2 AU ...
Page 18: ... 17 ...
Page 19: ... 18 ...
Page 20: ... 19 ...
Page 25: ...6 3 Setting Up Your Remote Control 24 ...
Page 26: ...7 Electrical parts 7 1 Block diagram 25 AMP Headphone Coaxial 1 2 MSD318QT Main IC ...
Page 37: ...8 TV OPERATION 36 ...
Page 38: ... 37 ...
Page 39: ... 38 Press ENTER Key To Select ...
Page 40: ... 39 Press ENTER Key To Select ...
Page 41: ... 40 ...
Page 44: ... 43 9 Trouble shooting 9 1 Simple check ...
Page 46: ... 45 3 Panel display abnormally connector J9 is at normal level ...
Page 50: ... 49 7 PC no picture or picture abnormal ...
Page 51: ... 50 8 YPBPR AV no picture or picture abnormal Check Y ...