|
|
| Failure Mode Of Panel | ||
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 | Polarizer has bubbles | |||
instruction on this manual to eliminate failure by replace | LCD panel. | ||||
| |||||
Failure description | Phenomenon |
|
| ||
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
| |
Vertical block defect |
|
|
|
|
|
|
|
|
| Polarizer has bubbles | ||
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
Vertical dim lines |
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
240PW9 LCD 
29
Vertical lines defect (Always bright or dark)
Horizontal block defect
Horizontal dim lines
Horizontal lines defect (Always bright or dark)
Foreign material inside polarizer . It shows liner or dot shape.
Concentric circle formed
Bottom back light of LCD is brighter than normal
Back light
Has bright or dark pixel
Backlight has foreign material. Black or white color, liner or circular type