LCD-Related Symptoms (2600-310/310D/310E/310ED)



LCD-Related Symptoms

 
The notebook computer LCD 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 1. Reseat the LCD connectors
   on, and a blank LCD 2. Hard disk connector board
   during POST 3. Hard disk
  4. Keyboard
  5. LCD inverter ID
  6. LCD FPC cable
  7. LCD inverter
  8. LCD
  9. System board
   ° LCD backlight 1. Enter 'BIOS Utility' to execute Load Setup Default
   not working  
   Settings, then reboot system.  
   ° LCD too dark 2. Reseat the LCD Connectors
   ° LCD brightness 3. Keyboard (if control is from the keyboard)
   cannot be adjusted 4. LCD inverter ID
   ° LCD contrast 5. LCD FPC Cable
   cannot be adjusted 6. LCD inverter
  7. LCD
  8. System board
   ° LCD screen unreadable 1. Reseat all LCD Connectors
   ° Characters missing pels 2. LCD inverter ID
   ° Screen abnormal 3. LCD FPC cable
   ° Wrong color displayed 4. LCD inverter
  5. LCD
  6. System board
   LCD has extra horizontal 1. LCD
   or vertical lines displayed 2. LCD inverter ID
  3. LCD inverter
  4. System board


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