Personal Computer User Manual
Table Of Contents
- System Specifications
- System Utilities
- Machine Disassembly and Replacement
- Disassembly Requirements
- General Information
- External Module Disassembly Process
- Main Unit Disassembly Process
- Main Unit Disassembly Flowchart
- Removing the Switch Cover
- Removing the Keyboard
- Removing the Antenna
- Removing the LCD Module
- Removing the Upper Cover
- Removing the Touch Pad Bracket
- Removing the Finger Print Reader
- Removing the Launch Board
- Removing the Speaker Module
- Removing the Switch Board
- Removing the Touch Pad Board
- Removing the I/O Board
- Removing the Bluetooth module
- Removing the Modem Module
- Removing the Main Board
- Removing the Thermal Module
- Removing the CPU
- Removing the CPU Fan
- Removing the HDMI Module
- LCD Module Disassembly Process
- LCD Module Reassembly Procedure
- Main Module Reassembly Procedure
- Replacing the CPU
- Replacing the Thermal Module
- Replacing the CPU Fan Module
- Replacing the HDMI Module
- Replacing the Mainboard
- Replacing the I/O Board
- Replacing the Bluetooth Board
- Replacing the Modem Module
- Replacing the Finger Print Reader
- Replacing the Touch Pad Bracket
- Replacing the Launch Board
- Replacing the Switch Board
- Replacing the Antenna Cables
- Replacing the Speaker Module
- Replacing the Keyboard
- Replacing the Switch Cover
- Replacing the WLAN Module
- Replacing the Hard Disk Drive Module
- Replacing the DIMM Modules
- Replacing the ODD Module
- Replacing the Lower Covers
- Replacing the Express and SD Card Trays
- Troubleshooting
- Common Problems
- Power On Issue
- No Display Issue
- Random Loss of BIOS Settings
- LCD Failure
- Built-In Keyboard Failure
- Touchpad Failure
- Internal Speaker Failure
- Internal Microphone Failure
- HDD Not Operating Correctly
- ODD Failure
- Modem Function Failure
- Wireless Function Failure
- EasyTouch Button Failure
- Thermal Unit Failure
- External Mouse Failure
- Other Failures
- Intermittent Problems
- Undetermined Problems
- POST Codes Tables
- Common Problems
- Jumper and Connector Locations
- FRU (Field Replaceable Unit) List
- Model Definition and Configuration
- Test Compatible Components
- Online Support Information
- Index
132 Chapter 4
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 42.
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 42.
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 42.
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 185.
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 185.
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.
6. If the Issue is still not resolved, see “Online Support Information” on page 185.