52
LCD-related symptoms
Note
Before removing or disassembling LCD, power off the computer, unplug all power cords from electrical
outlets, remove the battery pack also.
Symptom / Error
FRU or action, in sequence
LCD screen becomes dark suddenly.
Check out Battery Miser.
Nothing displayed on LCD screen.
1. Check out Battery Miser.
2. Choose Never in the Turn off Monitor item on
Power Options Properties.
3. Check the power save mode switch if it is pressed
by something.
4. Check the System is in standby or hibernation
mode.
LCD backlight not working.
LCD too dark.
LCD brightness cannot be adjusted.
1. Reconnect inverter to the board connector.
2. Replace inverter.
3. LCD Assembly.
4. System board.
LCD color cannot be adjusted.
LCD screen abnormal.
Characters missing pixels.
LCD screen unreadable.
Wrong color displayed.
1. Reset all LCD connectors.
2. Replace LCD cable.
3. LCD Assembly.
4. System board.
Horizontal or vertical lines displayed
on LCD
LCD Assembly.
Power-on indicator on, and a blank\LCD
during POST.
LCD Assembly.
System board.
Ch4. Symptom-to-part index
Summary of Contents for R580 Series U.ARC3BA9
Page 17: ...17 System Block Diagram Chapter 3 System information ...
Page 27: ...27 Ch3 System information g Burn process completed as below and tab OK ...
Page 60: ...60 Ch5 Removing and replacing a part 5 Remove the HDD Shield ...
Page 63: ...63 Ch5 Removing and replacing a part 3 Remove the WLAN Module ...
Page 66: ...66 3 Remove the ODD Ch5 Removing and replacing a part 4 Remove the ODD Bezel Bezel ...
Page 69: ...69 69 Ch5 Removing and replacing a part 5 Remove the Keyboard 6 Remove the Retainer ...
Page 71: ...71 71 Ch5 Removing and replacing a part 3 Remove the Display Module ...
Page 74: ...74 Ch5 Removing and replacing a part 3 Remove the Keyboard deck ...
Page 79: ...79 Ch5 Removing and replacing a part 3 Remove the Mainboard Case ...
Page 86: ...86 Ch5 Removing and replacing a part 3 Remove the Hinge Cap ...
Page 98: ...NLCD07 NLCD05 NLCD09 NLCD03 NLCD01 NLCD04 NLCD08 NLCD02 NWEBC01 ...
Page 100: ...NMINI02 NMINI01 NKDECK01 NKDECK02 NRTN01 NKEYBD01 ...
Page 102: ...NMRY01 NMRY01 NMINI04 NTHMO01 NRBS01 NMINI03 NCPU01 NMLB01 ...
Page 105: ...NCVR02 NCVR03 NCVR01 NHDD02 NHDD01 NBATT01 NODD02 NODD01 NBOTM01 NBOTM03 NHDD03 NBOTM02 ...