© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 13 1 Chapter 13: Advanced Laptops and Portable Devices IT Essentials: PC Hardware and Software v4.0

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 13 2 Purpose of this Presentation  List of chapter objectives  Overview of the chapter contents, including student worksheets student activities some potential student misconceptions  Reflection/Activities for instructors to complete to prepare to teach  Additional resources To provide to instructors an overview of Chapter 13:

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 13 3 Chapter 13 Objectives  13.1 Describe wireless communication methods for laptops and portable devices  13.2 Describe repairs for laptops and portable devices  13.3 Select laptop components  13.4 Describe preventive maintenance procedures for laptops  13.5 Describe how to troubleshoot a laptop

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 13 4 Introduction  With the increase in demand for mobility, the popularity of laptops and portable devices will continue to grow.  A technician should be able to configure, optimize, and troubleshoot laptops, portable devices, docking stations and accessories.  Some laptop manufacturers require technicians complete specialized certification training to perform laptop repairs.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 13 5 Wireless Communication Methods 13.1 Describe wireless communication methods for laptops and portable devices  Bluetooth  Infrared  Cellular WANs  Wi-Fi  Satellite

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 13 6 Bluetooth Technology  A short-range wireless technology designed to eliminate the need for cables between portable or fixed- configuration devices.  Operates at 2.4 to GHz in the unlicensed Industrial, Scientific, and Medical (ISM) band.  Low power, low cost, and small size.  Uses adaptive frequency hopping.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 13 7 Infrared (IR) Technology  A short-range, low-throughput wireless technology used as a data transmission medium.  Infrared light signals operate in the lowest light frequency, typically between 100GHz to 1000THz.  Distances are limited to a few feet or meters.  IR cannot penetrate any object that blocks the light signal.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 13 8 Cellular WAN Technology  Cellular WAN connections are powerful, 2-way wireless networks that have been around since the late 1970s.  Cellular networks operate in one of two ranges: Approximately 800 MHz Approximately 1900 MHz  Three generations of cellular WAN include voice-only analog, digital, and high-speed data and voice.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 13 9 Wireless Fidelity (Wi-Fi) Technology  Wi-Fi is a wireless technology that provides a simple connection from anywhere within the range of a base station.  Connection distances of 300 feet (91 meters) or more, depending on the environment.  Ease of access makes Wi-Fi a simple solution for network connectivity.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Satellite Technology  Satellite networks are faster than dial-up connections but slower than Cable and DSL connections.  Satellite service is ideal for the rural or remote Internet users.  Downloading files is faster than uploading files.  Adverse weather conditions can interfere with satellite reception.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Wireless Technologies PurposeDevicesRangeFrequencyLimitation Bluetooth Radio-frequency creating a WPAN connecting portable devices Laptop, printer, camera, PDA, cell phone, smartphone, hands-free headset Low-power, short range; 1 to 100 meters (3 to 330 feet) 2.4 to GHz Device must be Bluetooth compatible. Infrared (IR) Light waves used as a data transmission medium projector, PDA, printer, remote control, wireless mouse, wireless keyboard low-power, short range (1 meter); low through-put 100 GHz to 1000 THz Susceptible to interference and dilution Cellular WAN Cellular signal creating a WWAN Laptop, cell phone, PDA, smartphone Within several miles of cellular tower 850 to 1900 MHz Only where cell signal reaches Wireless Fidelity (Wi-Fi) Radio-frequency creating high-speed WLAN Laptop, printer, and other network devices 33 to 100 meters (100 to 300 feet) 2.4 GHz or 5.0 GHz The 2.4 GHz range is unregulated and heavily used. Satellite High-speed Internet access; ideal when no other broadband access available Laptop, GPS devices, smartphone To the satellite Up to 5,000 channels per satellite Slower than DSL/Cable; higher setup costs

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Repairing Laptops and Portable Devices

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Selecting Replacement Components

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Selecting Batteries  The signs may not always be apparent, but some are obvious: Laptop shuts off immediately when AC power is removed Battery is leaking Battery overheats Battery does not hold a charge How do you know when you need a new laptop battery?

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Select a Docking Station/Port Replicator  Increase the number of ports available to a laptop.  Convenient to connect the laptop to office network and peripherals.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Select Storage Devices  External USB hard drive  Firewire hard drive  DVD/CD burner Storage devices are CRUs, unless a warranty requires technical assistance.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Select Additional RAM Additional RAM speeds up the process by decreasing the number of times the OS reads and writes data to the hard drive swap file.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Laptop Preventive Maintenance Preventive maintenance should be scheduled at regular intervals to keep laptops running properly. Because laptops are portable, they are more likely to be exposed to harmful materials and situations than desktop computers.  Clean the laptop  Perform hard drive maintenance Disk Cleanup Disk Defragmenter  Update software

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Disk Cleanup and Disk Defragmenter  Windows XP has two programs that help clean up the hard drive: Disk Cleanup Disk Defragmenter The computer can slow down if the operating system is searching through fragmented files.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter File Management and Version Control When moving files from a laptop to a desktop computer, be careful that data copied from one computer does not inadvertently overwrite data on the other computer.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Step 1 Gather data from the customer Step 2 Verify the obvious issues Step 3 Try quick solutions first Step 4 Gather data from the computer Step 5 Evaluate the problem and implement the solution Step 6 Close with the customer Troubleshooting Process

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Gather Data from the Customer  Customer information Company name, contact name, address, phone number  Laptop information Manufacturer, model, OS, network environment, connection type  Description of problem In the scenario outlined in the student course content, the laptop will not boot.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Verify the Obvious Issues Examine the most obvious causes of a problem.  Is the laptop plugged in with the AC adapter?  Is the battery secure?  Is the power switch turned on?  Have there been any power outages?  Have any cables been unplugged?  Are the cables or connectors damaged?

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Try Quick Solutions First A quick solution can save time and money.  Replace the AC power adapter with a known good AC power adapter.  Remove and reinsert the battery, making sure that it is secure and locked in place.  Replace battery with a known good battery.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Gather Data from the Computer After connecting the AC adapter to a power outlet and the laptop still does not boot,  Remove the battery and start the laptop with just the AC adapter connected to a power outlet.  Check the connections inside the laptop case: Reseat the memory module. Remove the hard drive and then reinstall it. Remove any optical drives, such as the CD or DVD drive.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Evaluate Problem & Implement Solution 1.Evaluate the information gathered from the customer and from the laptop 2.Determine possible solutions 3.Implement the best solution Note: Try each solution one at a time. If a solution is tried and the problem is not fixed, then the technician should totally reverse the attempted solution before proceeding to the next step.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Close with the Customer  Discuss with customer the solution implemented.  Have customer verify problem is solved.  Provide all paperwork to customer.  Document steps of solution.  Document components used in repair.  Document time spent to resolve the problem.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Common Problems and Solutions Problem SymptomPossible Solution A laptop user complains that numerous peripheral cables are constantly getting tangled. Provide information to the user about cordless peripherals. A laptop user is unable to connect to the wireless network. Reconfigure the wireless security on the laptop to connect to the security system used by the network. The laptop keyboard no longer works. The keyboard is a FRU. Advise the customer to take the laptop to a repair center or return it to the manufacturer. A user reports that the laptop battery needs recharging more frequently than when it was new. Have the user completely discharge the battery, then fully recharge it. A user obtains a new laptop and reports that it does not fit in the existing docking station. Docking stations are proprietary. Verify that the user has a compatible model.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Apply Troubleshooting Skills  Now that you understand the troubleshooting process, it is time to apply your listening and diagnostic skills.  The worksheet is designed to reinforce your communication skills to verify information from the customer.

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Chapter 13 Summary Advanced Laptops and Portable Devices  Describe wireless communication methods  Describe CRU and FRU repairs  Select laptop CRU components  Schedule and perform preventive maintenance  Troubleshoot laptop issue as a level-two technician

© 2006 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter Additional Resources  Bluetooth Basics  Wireless Networking Overview  Wireless Network Technology  “Infrared” from About.com  Wide-Area Wireless Computing from Network Computing  Wireless Standards from About.com m m  Wi-Fi Alliance  Satellite Internet Service Information guide.com/satellite/ guide.com/satellite/  Howstuffworks: “How does satellite Internet operate?”  Cleaning laptop keyboards from Computing.Net  Cleaning a Laptop Computer from About.com  Book: Wireless Home Networking Simplified (Cisco Press book) ISBN #