Chapter 4
153
No Display Issue
If the
Display
doesn’t work, perform the following actions one at a time to correct the problem. Do not replace
a non-defective FRUs:
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 that the internal display is selected. On this notebook model, switching between the internal
display and the external display is done by pressing
Fn+F5
. Reference Product pages for specific model
procedures.
2.
Make sure the computer has power by checking at least one of the following occurs:
•
Fans start up
•
Status LEDs light up
If there is no power, see “Power On Issue” on page 152.
3.
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.
4.
Connect an external monitor to the computer and switch between the internal display and the external
display is by pressing
Fn+F5
(on this model).
If the POST or video appears on the external display, see “LCD Failure” on page 155.
5.
Disconnect power and all external devices including port replicators or docking stations. Remove any
memory cards and CD/DVD discs. Restart the computer.
If the computer boots correctly, add the devices one by one until the failure point is discovered.
6.
Reseat the memory modules.
7.
Remove the drives (see “Disassembly Process” on page 58).
8.
If the Issue is still not resolved, see “Online Support Information” on page 209.
Summary of Contents for Aspire 4930 Series
Page 6: ...VI ...
Page 10: ...X Table of Contents ...
Page 14: ...4 Chapter 1 System Block Diagram ...
Page 48: ...38 Chapter 1 ...
Page 63: ...Chapter 2 53 ...
Page 65: ...Chapter 2 55 ...
Page 66: ...56 Chapter 2 ...
Page 74: ...64 Chapter 3 6 Remove the HDD cover as shown 7 Remove the WLAN cover as shown ...
Page 79: ...Chapter 3 69 5 Remove the HDD from the carrier ...
Page 88: ...78 Chapter 3 Removing the Antenna 1 Remove the Antenna Cables from the securing pins as shown ...
Page 91: ...Chapter 3 81 6 Place the antenna cable as shown to avoid damaging them ...
Page 102: ...92 Chapter 3 13 Remove the Finger Print Reader board from the Upper Cover ...
Page 104: ...94 Chapter 3 13 Remove the Launch Board from the Upper Cover ...
Page 119: ...Chapter 3 109 18 Disconnect the DC IN Cable from the Mainboard ...
Page 121: ...Chapter 3 111 14 Lift the Thermal Module clear of the Mainboard ...
Page 123: ...Chapter 3 113 15 Lift the CPU clear of the Mainboard ...
Page 127: ...Chapter 3 117 14 Remove the HDMI Module as shown ...
Page 130: ...120 Chapter 3 10 Lift up the bezel rightside first and remove it from the LCD Module ...
Page 134: ...124 Chapter 3 11 Lift the Camera Module clear of the LCD Module ...
Page 138: ...128 Chapter 3 12 Remove the LCD brackets by pulling away from the LCD Panel as shown ...
Page 160: ...150 Chapter 3 ...
Page 191: ...Chapter 6 181 ...
Page 214: ...Appendix A 204 ...
Page 218: ...208 Appendix B ...
Page 220: ...210 Appendix C ...