Summary
This section discusses devices and components used for computer repair and maintenance. PC tools discussed include:
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Combination ratchet/screwdriver
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IC insertion/extraction tool
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Anti-static pad/wrist strap
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Extension magnet
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3-pronged parts retriever
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Multimeter
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Power supply tester
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Cable tester
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Loopback plug
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Known good spares
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POST card
Students will learn how to:
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Use an anti-static mat and strap to protect against ESD.
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Implement appropriate grounding procedures.
A+ 220-801 Exam Objectives: -
2.10 Given a scenario, use appropriate networking tools.
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Crimper
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Multimeter
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Toner probe
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Cable tester
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Loopback plug
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Punchdown tool
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5.1 Given a scenario, use appropriate safety procedures.
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ESD straps
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ESD mats
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Self-grounding
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Equipment grounding
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Personal safety
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Disconnect power before repairing PC
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Remove jewelry
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Lifting techniques
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Weight limitations
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Electrical fire safety
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CRT safety – proper disposal
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Cable management
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Compliance with local government regulations
A+ 220-802 Exam Objectives: -
4.2 Given a scenario, troubleshoot common problems related to motherboards, RAM, CPU and power with appropriate tools.
Lecture Focus Questions:
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When working with computer hardware, what is the advantage of having a ratcheting handle on a screwdriver?
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What is a good tool to use to retrieve a screw that has fallen into a computer case?
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What types of electrical properties can a multimeter measure?
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How is a power supply tester used to test the output from a PC power supply?
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How does a loopback plug verify that a device can both send and receive signals?
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How can ESD damage computer components?
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What measures should you take to protect hardware against ESD damage?
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When a wrist strap is unavailable, how can you still protect the computer from ESD while working in it?
Video/Demo Time
 2.3.1 PC Toolkit 3:17
12 questions
Total Time
About 20 minutes
Section 2.4: PC Maintenance Summary
This section discusses considerations and guidelines that can be used to help maintain computer systems. Concepts covered include:
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Creating the proper environment
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Heating, ventilation, and air conditioning (HVAC)
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Interference:
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Magnetic fields
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Details about cleaning the computer
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Tips for maintaining your computer
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Power conditions to be aware of:
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Surge
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Spike
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Sag
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Brownout
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Blackout
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Devices used to prevent power problems:
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Surge protector
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Line conditioner
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Standby Power Supply (SPS)
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Uninterruptible Power Supply (UPS)
Students will learn how to:
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Connect a UPS to your computer.
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Configure UPS settings for notifications and shutdown.
A+ 220-801 Exam Objectives: -
5.2 Explain environmental impacts and the purpose of environmental controls
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MSDS documentation for handling and disposal
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Temperature, humidity level awareness and proper ventilation
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Power surges, brownouts, blackouts
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Battery backup
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Surge suppressor
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Protection from airborne particles
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Dust and debris
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Component handling and protection
Lecture Focus Questions:
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Why is dust an enemy to a computer?
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What will too much, or too little, humidity do to a computer?
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When considering HVAC, what is the difference between a positive pressure system and a negative pressure system?
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What causes EMI and what can be done to prevent problems with it?
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How can a magnet affect a floppy disk or tape?
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What types of materials can you use to clean internal PC components?
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When is it important to use an anti-static vacuum?
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How are backups related to preventive maintenance?
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What is the difference between a surge and a spike?
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Which type of device protects against over voltages?
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What is the difference between the way an online UPS provides power to a system and an offline UPS provides power?
Video/Demo Time
2.4.1 PC Maintenance 4:05
2.4.3 Protecting Power 15:40
 2.4.4 Configuring UPS Settings 14:27
Total 34:12
Lab/Activity Number of Exam Questions
14 questions
Total Time
About 60 minutes
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