21
300WN5
Failure Mode of LCD Panel
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Failure description
Phenomenon
Vertical dim lines
Vertical block defect
)
Vertical lines defect
(Always bright or dark
Horizontal block defect
Horizontal dim lines
Horizontal lines defect
(Always bright or dark)
Has bright or dark pixel
.
.
.
.
..
.
.
.
.
..
Bright pixel
Dark pixel
..
.
.
.
.
Polarizer has bubbles
Polarizer has bubbles
Foreign material inside
polarizer. It shows linear or
dot shape.
.
.
.
.
Concentric circle formed
Bottom back light of LCD is
brighter than normal
Backlight un-uniformity
Backlight has foreign material.
Black or white color, linear or
circular type
Quick reference for failure mode of LCD panel
This page presents problems that could be made by LCD panel. It is
not necessary to repair circuit board. Simply follow the Mechanical
instruction on this manual to eliminate failure by replace LCD panel
or backlight tubes.
Summary of Contents for 300WN5QS/97
Page 7: ...300WN5 7 Connecting The Monitor Go to cover page Connect to PC ...
Page 23: ...23 300WN5 Wiring Diagram Go to cover page ...
Page 70: ...Scaler PCB C B A 1 70 300WN5 9 Go to cover page ...
Page 71: ...Scaler PCB C B A 2 71 9 Go to cover page 300WN5 ...
Page 72: ...Audio PCB C B A 72 300WN5 9 Go to cover page ...
Page 73: ...TV Box Video C B A 73 9 Go to cover page 300WN5 ...
Page 74: ...TV Box TV PCB C B A 74 300WN5 9 Go to cover page ...
Page 75: ...Power Board Diagram 75 9 Go to cover page 300WN5 ...