LCD-Related Symptoms (9546, 9547)

LCD-Related Symptoms

The LCD for the notebook computer contains over 921.000 thin-film transistors (TFTs). A small number of missing, discolored, or lighted dots (on all the time) is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of missing, discolored, or lighted dots in any background is 21 or more.
Symptom / Error    FRU / Action in Sequence
   No beep, power-on indicator on, 1. System board
   and a blank LCD during POST. 2. DC/DC card
  3. Video card
  4. CPU card
   LCD backlight not working, or 1. Reseat the LCD connectors.
   LCD too dark, or 2. LCD assembly
   LCD brightness cannot be adjusted, or 3. DC/DC card
   LCD contrast cannot be adjusted.  
   LCD screen unreadable, or 1. See (above) important note for LCD-Related Symptoms.
   Characters missing pels, or 2. Reseat all LCD connectors.
   Screen abnormal, or 3. LCD assembly
   Wrong color displayed. 4. System board
  5. Video card
   LCD has extra horizontal or 1. LCD assembly
   vertical lines displayed.  

Please see the LEGAL  -  Trademark notice.
Feel free - send a Email-NOTE  for any BUG on this page found - Thank you.