A SERVICE OF

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29
Failure Mode Of Panel
240PW9 LCD
Failure description
Phenomenon
Vertical block defect
Vertical dim lines
Vertical lines defect
(Always brightor dark)
Horizontal block defect
Horizontal dim lines
Horizontal lines defect
(Always brightor dark)
Has brightor dark pixel
Polarizer has bubbles
Polarizer has bubbles
Foreign material inside
polarizer. It shows liner or
dot shape.
Concentric circle formed
Bottom back lightof LCD is
brighter than normal
Back lightun-uniformity
Backlight has foreign material.
Black or white color, liner or
circular type
Quick reference for failure mode of LCD panel
this page presents problems that could be made by LCD panel.
It is notnecessary to repair circuit board. Simply follow the mechanical
instruction on this manual to eliminate failure by replace LCD panel.