44
Polarizer
Scratch
Polarizer Scratch
Tine or rigidity arose
F/M inside
Polarizer
Eyewinker inside
Polarizer
Eyewinker inside Polarizer
Abnormal
Display
Abnormal Display
Circuit
Flashing
Bright and dark
display alternately
1. Chip lose action
2. IC ahort or jointiog bad
3. Pannel and vsc connect bad
Failure Mode
Part Name Description Phenomena
Failure
cause
White
Screen
B/L normal, only
white screen
display
Black
Screen
B/L normal, only
Black screen
display
Maybe caused by surge current and EDS
FIIcker Crosstalk
LCD Vcom imbalance
Abnormal
Color
Only color
abormal
Capacitance improper bring crosstalk inside LCD
pannel
Circuit
Abnormal
Color
Only color
abnormal
1. Chip lose action
2. IC short or jointion bad
3. Pannel and vsc connect bad