Chapter 13 Advanced Laptops and Portable Devices IT

Purpose of this Presentation To provide to instructors an overview of Chapter 13: § 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 ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2

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 ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3

Chapter 13 Worksheets and Activity § 13. 1. 5 Activity: Wireless Technologies § 13. 2 Worksheet: Investigating Repair Centers § 13. 3. 1 Worksheet: Laptop Batteries § 13. 3. 2 Worksheet: Docking Station § 13. 3. 3 Worksheet: DVD Drive Research § 13. 3. 4 Worksheet: Laptop RAM § 13. 5. 3 Worksheet: Verify Work Order Information ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5

Wireless Communication Methods 13. 1 Describe wireless communication methods for laptops and portable devices § Bluetooth § Infrared § Cellular WANs § Wi-Fi § Satellite ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6

Bluetooth Technology § A short-range wireless technology designed to eliminate the need for cables between portable or fixedconfiguration devices. § Operates at 2. 4 to 2. 485 GHz in the unlicensed Industrial, Scientific, and Medical (ISM) band. § Low power, low cost, and small size. § Uses adaptive frequency ITE PC v 4. 0 Chapter 13 hopping. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 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 100 GHz to 1000 THz. § Distances are limited to a few feet or meters. § IR cannot penetrate any object that blocks the light signal. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8

Cellular WAN Technology § Cellular WAN connections are powerful, 2 -way wireless networks that have been around since the late 1970 s. § 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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10

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 with satellite reception. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. interfere Cisco Public 11

Wireless Technologies Purpose Devices Range Frequency Limitation 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 2. 485 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 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. To the satellite Up to 5, 000 channels per satellite Slower than DSL/Cable; higher setup costs Wireless Radio-frequency Laptop, printer, and Fidelity (Wi creating high-speed other network devices WLAN -Fi) Satellite ITE PC v 4. 0 Chapter 13 High-speed Internet access; ideal when no other broadband access available Laptop, GPS devices, smartphone © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12

Repairing Laptops and Portable Devices ITE PC v 4. 0 Chapter 13 © 2007

Selecting Replacement Components ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems,

Selecting Batteries How do you know when you need a new laptop battery? § 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 ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15

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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16

Select Storage Devices Storage devices are CRUs, unless a warranty requires technical assistance. § External USB hard drive § Firewire hard drive § DVD/CD burner ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17

Select Additional RAM speeds up the process by decreasing the number of times the OS reads and writes data to the hard drive swap file. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18

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 ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19

Disk Cleanup and Disk Defragmenter The computer can slow down if the operating system is searching through fragmented files. § Windows XP has two programs that help clean up the hard drive: Disk Cleanup Disk Defragmenter ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20

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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 21

Troubleshooting Process 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 ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 22

1. 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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 23

2. 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? ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 24

3. 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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 25

4. 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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 26

5. 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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 27

6. 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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 28

Common Problems and Solutions Problem Symptom Possible Solution A laptop user complains that numerous Provide information to the user about peripheral cables are constantly getting cordless peripherals. tangled. 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 Have the user completely discharge the needs recharging more frequently than battery, then fully recharge it. when it was new. A user obtains a new laptop and Docking stations are proprietary. Verify reports that it does not fit in the existing that the user has a compatible model. docking station. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 29

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. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 30

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 ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 31

Instructor Training Activities ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems,

Activities for Instructor Training 1. Take the Quiz provided in Chapter 13 course content. 2. Generate list of various laptops by manufacturer and by model number. Use these details to assign to students for the basis of their research in the Chapter 13 student worksheets. 3. Conduct Internet research to pre-screen online resources for students to use in completing the student worksheets. 4. Generate list of various laptop issues with solutions. When teaching students, use these issues to allow students to practice working through the troubleshooting process as both a level-one technician and as a level-two technician. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 33

Instructor Training Discussion § Share the following with the other instructors: List of laptops by manufacturer and by model number List of online resources List of laptop issues with solution identified § Discuss ways to incorporate additional troubleshooting practice in student classes. ITE PC v 4. 0 Chapter 13 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 34

Additional Resources § § § ITE PC v 4. 0 Chapter 13 Bluetooth Basics http: //www. bluetooth. com/Bluetooth/Learn/Basics/ Wireless Networking Overview http: //www. escotal. com/wifi. html Wireless Network Technology http: //www. northoak-training. com/Wireless. htm “Infrared” from About. com http: //compnetworking. about. com/od/homenetworking/g/bldef_infrared. htm Wide-Area Wireless Computing from Network Computing http: //www. networkcomputing. com/netdesign/wireless 1. html 802. 11 Wireless Standards from About. com http: //compnetworking. about. com/od/wireless 80211/80211_Wireless_Standards. htm Wi-Fi Alliance http: //www. wi-fi. org Satellite Internet Service Information http: //www. high-speed-internet-accessguide. com/satellite/ Howstuffworks: “How does satellite Internet operate? ” http: //computer. howstuffworks. com/question 606. htm Cleaning laptop keyboards from Computing. Net http: //www. computing. net/howto/simple/keyboard/ Cleaning a Laptop Computer from About. com http: //mobileoffice. about. com/od/usingyourlaptop/a/cleanlaptop. htm Book: Wireless Home Networking Simplified (Cisco Press book) ISBN #1587201615 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 35