Dell Latitude 120L User Manual Page 95
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Keyboard Problems
Fill out the Diagnostics Checklist as you perform the various checks.
External keyboard problems
Check the keyboard cable —
Shut down the computer. Disconnect the keyboard cable and check it for damage, and firmly reconnect the cable.
If you are using a keyboard extension cable, disconnect it and connect the keyboard directly to the computer.
Check the external keyboard —
1. Shut down the computer, wait 1 minute, and turn it on again.
2. Verify that the numbers, capitals, and scroll lock lights on the keyboard blink during the boot routine.
3. From the Windows desktop, click the Start button® Programs® Accessories, and click Notepad.
4. Type some characters on the external keyboard and verify that they appear on the display.
If you cannot verify these steps, you may have a defective external keyboard.
To verify that the problem is with the external keyboard, check the integrated keyboard —
1. Shut down the computer.
2. Disconnect the external keyboard.
3. Turn on the computer.
4. From the Windows desktop, click the Start button® Programs® Accessories, and click Notepad.
5. Type some characters on the internal keyboard and verify that they appear on the display.
If the characters appear now but did not with the external keyboard, you may have a defective external keyboard. See Technical Assistance.
Run the keyboard diagnostics tests —
Run the PC-AT Compatible Keyboards tests in the Dell Diagnostics. See Dell Diagnostics. If the tests indicate a defective external keyboard, see Technical
Assistance.
Unexpected characters
Disable the numeric keypad —
Press <Num Lk> to disable the numeric keypad if numbers are displayed instead of letters. Verify that the numbers lock light is not lit.
Lockups and Software Problems
The computer does not start up
Ensure that the AC adapter is firmly connected to the computer and to the electrical outlet.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTE: Use the integrated keyboard when running the Dell Diagnostics or the system setup program. When you attach an external keyboard, the
integrated keyboard remains fully functional.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
- A Tour of Your Computer 1
- Left Side View 3
- Right Side View 4
- Back View 5
- Bottom View 5
- Appendix 7
- Macrovision Product Notice 8
- Using a Battery 9
- Charge Gauge 10
- Conserving Battery Power 11
- Power Management Modes 11
- Power Management Wizard 12
- Hibernate Mode 12
- Selecting a Power Scheme 13
- Power Options Properties 14
- Charging the Battery 15
- Replacing the Battery 15
- Storing a Battery 16
- Using ExpressCards 17
- Playing a CD or DVD 19
- Adjusting the Volume 19
- Adjusting the Picture 20
- Copying CDs and DVDs 20
- Using Blank CDs and DVDs 21
- Helpful Tips 21
- Using the Display 23
- Finding Information 26
- Glossary 28
- Getting Help 34
- Problems With Your Order 35
- Product Information 35
- Before You Call 36
- Contacting Dell 36
- Numeric Keypad 45
- Key Combinations 45
- Touch Pad 46
- Customizing the Touch Pad 47
- Network Setup Wizard 48
- Setting Up a New WLAN 49
- Adding and Replacing Parts 53
- Hard Drive 54
- CD/DVD Drive 56
- Memory 56
- Wireless Mini PCI Card 58
- Hinge Cover 60
- Keyboard 61
- Dell™QuickSetFeatures 63
- Securing Your Computer 65
- Using a Hard Drive Password 66
- Setting Up Your Computer 68
- Setting Up a Printer 70
- Power Protection Devices 71
- Line Conditioners 72
- System Setup Program 73
- Commonly Used Options 74
- Reinstalling Software 75
- Creating a Restore Point 77
- Enabling System Restore 77
- Before You Begin 78
- Reinstalling Windows XP 78
- Specifications 79
- Dell™Latitude™120L 83
- User's Guide 83
- Identifying Your Computer 85
- Packing the Computer 85
- Travel Tips 85
- Traveling by Air 86
- Solving Problems 87
- Drive Problems 88
- CD and DVD drive problems 89
- Hard drive problems 90
- Error Messages 91
- Keyboard Problems 95
- Memory Problems 97
- Network Problems 97
- ExpressCard Problems 98
- Power Problems 98
- Printer Problems 99
- Scanner Problems 100
- Sound and Speaker Problems 100
- Touch Pad or Mouse Problems 101
- Video and Display Problems 102
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