HP 2100 (AMD), 2100AP, 2100CA, 2100US, 2101AP, 2101US, 2102AP, 2102US, 2103AP, 2104AP, 2105AP, 2105US, 2106AP, 2106US, 2107AP, 2108AP, 2109AP, 2110AP, 2110US, 2112AP, 2112EA, 2113AP, 2114AP, 2115AP, 2116AP, 2117AP, 2117EA, 2119EA, 2120AP, 2120US, 2123AP, 2124AC, 2124EA, 2125AC, 2125AP, 2126AC, 2126EA, 2127AC, 2129AC, 2130AC, 2131AC, 2131EA, 2132AC, 2132RS, 2133AC, 2135AC, 2135AP, 2135US, 2136RS, 2138AC, 2138EA, 2139AC, 2140AC, 2140AP, 2140CA, 2140US, 2141AC, 2141EA, 2142AC, 2142EA, 2143AC, 2143AP, 2143EA, 2144EA, 2145AP, 2145CA, 2145US, 2150AP, 2151EA, 2155US, 2156EA, 2158, 2185AF, 2505EA, 2508EA, 2510AP, 2514AH, 2515AH, 2515AP, 2516AH, 2517AH, 2518AH, 2524AP, 2528AP, 2529EA, 2532AP, 2532EA, 2533EA, 2535AP, 2535EA, 2535QV, 2537EA, 2538AP, 2538CL, 2541EA, 2542EA, 2543AP, 2543EA, 2544EA, 2545AP, 2545US, 2546EA, 2548AP, 2549EA, 2550AP, 2550CA, 2555AP, 2555US, 2558AP, 2560AP, 2562AP, 2565AP, 2566AP, 2568AP, 2569AP, 2500 Audio Problems, If No Sound Is Audible, If Sound Does Not Record, If You Hear Loud, High-PitchedFeedback from the Speakers

Troubleshooting

Audio Problems

If No Sound Is Audible

■If your model has a volume control, press the + (plus) button to increase the volume.

■Select the speaker icon on the taskbar (if present). Clear the Mute all check box if selected. If your model has an audio mute button, press it so the indicator light goes off.

■When you are operating your notebook in MS-DOS mode (for example, when running MS-DOS games), you may find that the sound does not operate properly. Use Windows applications for full use of sound capabilities.

If Sound Does Not Record

■Plug in an external microphone. The notebook does not have a built-in microphone.

■Check the software controls for recording sound by selecting Start > All Programs > Accessories > Multimedia (or Entertainment) > Sound Recorder.

■In Volume Control, select Option > Properties, and make sure the microphone is enabled in the recording controls.

If You Hear Loud, High-Pitched Feedback from the Speakers

■In the Volume Control, try reducing the Master volume by selecting the speaker icon in the taskbar.

■In Volume Control, select Options > Properties, then select the microphone option for the playback settings. Also in Volume Control, make sure the microphone is muted.

6–2	Reference Guide

Contents

Reference Guide Page Software Product License Agreement Page Page Page Contents 3 Battery Packs and Power Management 4 Modem and Network Connections 5 Add-OnDevices 6 Troubleshooting 7 Reference Information Index Getting Started with Your Notebook Identifying Parts of the Notebook Front Panel and Right Panel Components Page Left Panel and Back Panel Components Page Bottom Panel Components Page Status Lights Page Setting Up Your Notebook Step 1: Insert the Battery Pack Step 2: Connect AC Power Step 3: Connect a Phone Line Step 4: Turn On the Notebook Step 5: Set Up Windows Basic Operation Operating Your Notebook Default Power Settings To Reset the Notebook To Change the Boot Device To Use the TouchPad To Use the Tap to Click Function of the TouchPad To Use the Function Hot Keys To Use the One-TouchButtons To Use the Windows and Applications Keys To Type Alternate Graphics Using the ALT GR Key Using CDs or DVDs To Insert or Remove a CD or DVD To Play DVD Movies To Create or Copy CDs To Write to DVD Media Securing Your Notebook To Set Up Password Protection To Lock Your Notebook To Attach a Security Cable To Protect Against Viruses To Lock the Hard Drive Taking Care of Your Notebook To Protect Your Hard Drive To Maintain Your Notebook To Safeguard Your Data To Extend the Life of the Display To Clean Your Notebook Battery Packs and Power Management Managing Power Consumption How the Notebook Manages Power Automatically To Change Timeout Settings and Create Power Schemes Using Battery Power To Check Battery Status To Respond to a Low-BatteryWarning To Recharge the Battery Pack To Get the Most from Your Battery Packs Page Modem and Network Connections Using the Modem To Connect the Modem Special Restrictions in Certain Countries To Change Your Modem Settings Connecting to a Local Area Network (LAN) Using a Wireless LAN Adapter Page Making Wireless Network Connections (Select Models Only) To Prepare for Connections Connecting to a Wireless Network Checking the Wireless Connection Status Creating a New Computer-to-Computer(Ad Hoc) Network To Turn Wireless Communication On and Off Turning On Communication and Making a Connection Turning Off Communication and Ending a Connection Add-OnDevices Connecting External Devices To Insert or Remove a PC Card Removing a PC Card To Connect an Audio Device To Use an External Monitor Using Dual Display Mode To Connect a 1394 Device (Select Models Only) To Connect an Infrared Device (Select Models Only) Using the Infrared Port Avoiding Standby While Using Infrared Printing to an Infrared Printer Transferring Files Through an Infrared Connection To Use a Port Replicator Page To Undock from the Port Replicator Installing Additional RAM (Memory) To Install a RAM Expansion Module Page To Remove a RAM Expansion Module Replacing the Hard Drive To Replace the Hard Drive Page To Replace the Hard Drive Holder To Prepare a New Hard Drive Troubleshooting Troubleshooting Your Notebook Audio Problems CD-ROMand DVD Problems Display Problems Hard Drive Problems Heat Problems Infrared Problems Keyboard and Pointing Device Problems If the Pointer Is Difficult to Control If the TouchPad Does Not Work If the TouchPad Moves the Pointer or Cursor While You Type If a PS/2 Scroll Mouse Does Not Work Local Area Network (LAN) Problems Memory Problems Modem Problems If the Modem Does Not Dial or No Dial Tone Is Detected If the Modem Dials Incorrectly If the Modem Dials, But Does Not Connect If the Modem Is Not Detected If the Modem Dials, But You Cannot Hear It If the Modem Connects, But Transferred Data Is Bad PC Card (PCMCIA) Problems Performance Problems Power and Battery Pack Problems If the Notebook Keeps Beeping If the Battery Pack Does Not Charge If the Notebook Has a Short Operating Time If the Time Remaining for the Battery Pack Is Not Correct If the Notebook Does Not Enter Standby Mode as Expected If the Notebook Does Not Enter Hibernation as Expected Printing Problems Serial, Parallel and USB Problems Startup Problems If the Notebook Will Not Boot from the Diskette Drive If the Notebook Stops Responding After Booting If the Notebook Takes a Long Time to Resume After Entering Standby Wireless Problems If You Cannot Connect to a Particular Notebook on the Network If You Can Connect, But the Network Is Slow Configuring Your Notebook To Run the BIOS Setup Utility Page Page Page Page To Change Video Memory Settings Using BIOS Setup Utility Updating Software and Drivers from the Web Using System Recovery Features Safeguarding Your Data Operating System (OS) CD Repair OS CD Reinstall Reinstalling Drivers Restoring Software Applications Reference Information Modem Reference Information Modem Reference (Conexant) Page Page Page Page Page Page Page Page Page Page Page Page Page Page Safety Information Power Cords Battery Safety Laser Safety LED Safety Mercury Safety Exposure to Radio Frequency Radiation Wireless Notice Regulatory Information Page Page Canada European Union Page Page Japan Korea New Zealand Page Russia Brazil International Page Page Index