153
Chapter 4
LCD Failure
If the integrated LCD display fails, use the following flowchart to determine the required action:
No POST or Video
If the POST or video doesn’t display, perform the following actions one at a time to correct the problem.
1.
Make sure the computer has power by checking at least one of the following occurs:
•
Fans start up
•
Status LEDs light up
2.
Drain any stored power by removing the power cable and battery and holding down the power button for
10 seconds. Reconnect the power and reboot the computer.
3.
Disconnect power and all external devices including port replicators or docking stations. Remove any
memory cards and CD/DVD discs. Restart the computer.
LCD Failure
Is the LVDS cable
properly connected?
Test the LVDS Cable
Is the inverter properly
connected?
Test the inverter
Test the inverter cables
Re-insert the cable
Re-insert the cable
Test the LCD Module
Replace the cable
Replace the cable
Replace the
inverter
Replace the LCD
Module
F
Fail
F
Fail
Fail
Fail
Fail
F
F
F
F
Close
Close
Close
Close
Close
Close
OK
OK
OK
OK
OK
OK
Change Mainboard
Summary of Contents for ZX4830 Series
Page 6: ...VI Laptopblue...
Page 10: ...X Table of Contents Laptopblue...
Page 47: ...Chapter 2 37 Laptopblue...
Page 53: ...43 Chapter 3 4 Lift the ODD bezel away 5 Close the ODD assembly Laptopblue...
Page 57: ...47 Chapter 3 5 Forcefully pry the rear cover from the assembly i ii iii iv Laptopblue...
Page 59: ...49 Chapter 3 4 Disconnect the audio cable from the audio board Laptopblue...
Page 62: ...Chapter 3 52 7 Remove the HDD module from the bracket Laptopblue...
Page 74: ...Chapter 3 64 15 Lift the mainboard shielding away from the chassis Laptopblue...
Page 76: ...Chapter 3 66 4 Lift the WLAN module away Laptopblue...
Page 82: ...Chapter 3 72 4 Remove the fan Laptopblue...
Page 87: ...77 Chapter 3 4 Remove the cables from the guide clips Laptopblue...
Page 97: ...87 Chapter 3 4 Lift the power board away from the bezel Laptopblue...
Page 100: ...Chapter 3 90 4 Disconnect the webcam cable Laptopblue...
Page 121: ...111 Chapter 3 13 Connect the LVDS cable 14 Adhere the LVDC cable protective cover Laptopblue...
Page 138: ...Chapter 3 128 4 Connect the left and right touchscreen sensor cable connectors Laptopblue...
Page 143: ...133 Chapter 3 4 Connect the two 2 LCD to inverter board cables 1 and 2 1 2 Laptopblue...
Page 155: ...145 Chapter 3 4 Close the ODD Laptopblue...
Page 193: ...183 Appendix B Laptopblue...
Page 196: ...186 Laptopblue...
Page 197: ...187 Laptopblue...
Page 198: ...188 Laptopblue...