Chapter 4
145
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 144.
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 147.
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 1420P Series
Страница 6: ...vi...
Страница 10: ...x Table of Contents...
Страница 13: ...Chapter 1 3 System Block Diagram...
Страница 32: ...22 Chapter 1...
Страница 48: ...38 Chapter 2...
Страница 60: ...50 Chapter 3 4 Remove the one 1 screw 5 Remove the 3G module Step Screw Quantity Screw Type 3G Module M2 3 1...
Страница 64: ...54 Chapter 3 4 Unlock the FPC 5 Remove the FPC and keyboard...
Страница 66: ...56 Chapter 3 4 Remove the hinge cap 5 Remove the hinge bezel...
Страница 70: ...60 Chapter 3 10 Pull the upper cover away...
Страница 80: ...70 Chapter 3 6 Remove the two 2 screws 7 Remove the LED board Step Screw Quantity Screw Type LED Board M2 4 2...
Страница 85: ...Chapter 3 75 11 Lift up the main board from the inside edge and pull away 12 Remove the CRT cable...
Страница 94: ...84 Chapter 3 7 Pry up the bezel top edge and remove...
Страница 100: ...90 Chapter 3 6 Pull up the LCD cable from the adhesive 7 Pull the touchscreen cable from the adhesive...
Страница 105: ...Chapter 3 95 6 Remove the antenna cable from the retention guide hooks 7 Peel the antenna foil off the cover...
Страница 119: ...Chapter 3 109 7 Insert the stylus...
Страница 127: ...Chapter 3 117 7 Connect the touchscreen cable Replacing the CRT Board 1 Connect the CRT cable 2 Turn the CRT board over...
Страница 134: ...124 Chapter 3 6 Lock the main board connector 7 Replace the I O cable in the IO board 8 Lock the I O board connector...
Страница 142: ...132 Chapter 3 2 Replace the hinge cap 3 Replace the three 3 screws Step Screw Quantity Screw Type Hinge Covers M2 3 3...
Страница 144: ...134 Chapter 3 4 Press down the keyboard top edge Replacing the 3G Module 1 Replace the 3G module...
Страница 148: ...138 Chapter 3 2 Replace the HDD in the bay 3 Adhere the black tape 4 Replace the HDD FPC...
Страница 149: ...Chapter 3 139 5 Lock the HDD FPC Replacing the Module Cover 1 Insert the side of the module cover into the slots...
Страница 150: ...140 Chapter 3 2 Replace the module pressing firmly around the edges 3 Tighten the six 6 captive screws...
Страница 152: ...142 Chapter 3 3 Lock the battery Replacing the Dummy Card 1 Insert the dummy card into the slot...
Страница 202: ...192 Appendix A...
Страница 212: ...202...
Страница 215: ...205...
Страница 216: ...206...