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.
LCD assembly.
System board.
Power-on indicator on, and a blank\LCD
during POST.
LCD assembly.
Horizontal or vertical lines displayed
on LCD
1. Reset all LCD connectors.
2. Replace LCD cable.
3. LCD assembly.
4. System board.
LCD color cannot be adjusted.
LCD screen abnormal.
Characters missing pixels.
LCD screen unreadable.
Wrong color displayed.
1. Reconnect inverter to the board connector.
2. Replace inverter.
3. LCD assembly.
4. System board.
LCD backlight not working.
LCD too dark.
LCD brightness cannot be adjusted.
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.
Nothing displayed on LCD screen.
Check out Battery Miser.
LCD screen becomes dark suddenly.
FRU or action, in sequence
Symptom / Error
Ch4. Symptom-to-part index
Summary of Contents for P1
Page 2: ...0 Service Manual S1 P1 LG Electronics ...
Page 21: ...19 System Block Diagram Ch3 System information ...
Page 59: ...57 2 Pull the HDD Assy out in the direction shown below Ch5 Removing and replacing a part ...
Page 63: ...61 3 Disconnect the keyboard connector Ch5 Removing and replacing a part ...
Page 65: ...63 Ch5 Removing and replacing a part ...
Page 68: ...66 Ch5 Removing and replacing a part ...
Page 72: ...70 Ch5 Removing and replacing a part ...
Page 77: ...75 4 Remove the Cardbus 5 in 1 Dummy Ch5 Removing and replacing a part ...
Page 79: ...77 Ch5 Removing and replacing a part ...
Page 83: ...81 3 Remove the Main Board Ch5 Removing and replacing a part ...
Page 86: ...84 3 Remove the Audio sub board Ch5 Removing and replacing a part ...
Page 88: ...86 2 Remove the Finger Printer Ch5 Removing and replacing a part ...
Page 90: ...88 2 Remove the Touchpad Ch5 Removing and replacing a part ...
Page 92: ...90 2 Disassemble the LCD Hook located on top of LCD Ch5 Removing and replacing a part ...
Page 97: ...95 Ch5 Removing and replacing a part ...
Page 106: ...Rocky W EXPLODED VIEW 2 NSCRC NBRKH NSCRC NCSNH NHDD1 NLAN1 NCVRC NMEM1 NCVRS ...
Page 113: ...Rocky W EXPLODED VIEW 9 NSCR2 NSCR2 NSCR2 NSCR2 NSUBB NSUBT NSUBF NSUBA NSCR2 ...
Page 118: ...Rocky W EXPLODED VIEW 14 NSCR7 NSCR7 NFAN1 NSCRA NFAN2 NSCR7 NMDM1 NCPU1 NMEM1 ...