Chapter 4
137
No Display Issue
If the
Display
doesn’t work, perform the following actions one at a time to correct the problem. Do not replace
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 136.
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 139.
5.
Disconnect power and all external devices including port replicators or docking stations. Remove any
memory cards and CD/DVD discs. Restart the computer.
START
Power On ?
No
Go to No Power
troubleshooting
step
Replace external
DDRAM module
Remove and
replace thermal
module
Replace the
main board
Reconnect
SDRAM Module
LCD Module OK?
Replace LCD
Panel and
Cable
Ext. DDRAM module
connected properly?
Ext. DDRAM
module functional?
CPU Thermal
Module properly
connected?
No
No
No
No
Содержание ASPIRE 5745
Страница 6: ...VI ...
Страница 10: ...X Table of Contents ...
Страница 48: ...38 Chapter 2 ...
Страница 56: ...46 Chapter 3 4 Lift the base door out and away ...
Страница 61: ...Chapter 3 51 5 Pull the WLAN module out and away ...
Страница 68: ...58 Chapter 3 8 Flip the keyboard over 9 Detach the keyboard FPC a Unlock the FPC b Pull the keyboard away a b ...
Страница 74: ...64 Chapter 3 4 Unlock and disconnect the switch board FFC ...
Страница 76: ...66 Chapter 3 4 Lift the power board away ...
Страница 81: ...Chapter 3 71 4 Lift away the I O board 5 Unlock and remove the I O board FFC from the mainboard ...
Страница 83: ...Chapter 3 73 5 Detach the Bluetooth module cable from the module ...
Страница 94: ...84 Chapter 3 4 Pry open the bottom corners and along the bottom edge 5 Lift the bezel off the module ...
Страница 98: ...88 Chapter 3 7 Disconnect the FPC cable ...
Страница 102: ...92 Chapter 3 8 Pry the antenna off the casing ...
Страница 105: ...Chapter 3 95 7 Lay the cables along the retention guides ...
Страница 106: ...96 Chapter 3 Replacing the Microphone 1 Lay the microphone cable in the retention guides 2 Adhere the microphone ...
Страница 112: ...102 Chapter 3 3 Press down on the bezel edge working simultaneously around the edges to the bottom ...
Страница 117: ...Chapter 3 107 2 Using a flat bladed screw driver rotate the CPU locking screw 180 clockwise to secure the CPU in place ...
Страница 121: ...Chapter 3 111 3 Connect and lock the I O card FFC to the I O board 4 Connect and lock the I O card FFC to the mainboard ...
Страница 123: ...Chapter 3 113 4 Connect the Bluetooth module cable to the main board ...
Страница 126: ...116 Chapter 3 7 Lay the LVDS cable across the assembly as shown and press down firmly 8 Connect the LVDC cable ...
Страница 132: ...122 Chapter 3 7 Connect and lock the button board FFC ...
Страница 138: ...128 Chapter 3 4 Grasp the tab and slide the HDD firmly into the docking connector ...
Страница 141: ...Chapter 3 131 4 Push the ODD completely into the bay until flush with the lower cover ...
Страница 142: ...132 Chapter 3 Replacing the Base Door 1 Insert the base door edge flanges into the slots 2 Lower the base door ...
Страница 162: ...152 Chapter 4 ...
Страница 230: ...220 ...
Страница 233: ...223 Index ...