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Chapter 4
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 34).
8.
If the Issue is still not resolved, see “Online Support Information” on page 165.
Abnormal Video Display
If video displays abnormally, perform the following actions one at a time to correct the problem.
1.
Reboot the computer.
2.
If permanent vertical/horizontal lines or dark spots display in the same location, the LCD is faulty and
should be replaced. See “Disassembly Process” on page 34.
3.
If extensive pixel damage is present (different colored spots in the same locations on the screen), the LCD
is faulty and should be replaced. See “Disassembly Process” on page 34.
4.
Adjust the brightness to its highest level. See the User Manual for instructions on adjusting settings.
NOTE:
Ensure that the computer is not running on battery alone as this may reduce display brightness.
If the display is too dim at the highest brightness setting, the LCD is faulty and should be replaced. See
“Disassembly Process” on page 34.
5.
Check the display resolution is correctly configured:
a.
Minimize or close all Windows.
b.
If display size is only abnormal in an application, check the view settings and control/mouse wheel
zoom feature in the application.
c.
If desktop display resolution is not normal, right-click on the desktop and select
Personalize
´
Display Settings
.
d.
Click and drag the Resolution slider to the desired resolution.
e.
Click
Apply
and check the display. Readjust if necessary.
6.
Roll back the video driver to the previous version if updated.
7.
Remove and reinstall the video driver.
8.
Check the Device Manager to determine that:
•
The device is properly installed. There are no red Xs or yellow exclamation marks.
•
There are no device conflicts.
•
No hardware is listed under Other Devices.
9.
If the Issue is still not resolved, see “Online Support Information” on page 165.
10.
Run the Windows Memory Diagnostic from the operating system DVD and follow the onscreen prompts.
11.
If the Issue is still not resolved, see “Online Support Information” on page 165.
Random Loss of BIOS Settings
If the computer is experiencing intermittent loss of BIOS information, perform the following actions one at a
time to correct the problem.
1.
If the computer is more than one year old, replace the CMOS battery.
2.
Run a complete virus scan using up-to-date software to ensure the computer is virus free.
3.
If the computer is experiencing HDD or ODD BIOS information loss, disconnect and reconnect the power
and data cables between devices.
If the BIOS settings are still lost, replace the cables.
4.
If HDD information is missing from the BIOS, the drive may be defective and should be replaced.
5.
Replace the Motherboard.
Содержание Aspire 1820PT 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 ...