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A+ Core Hardware Service Technician
Exam Objectives
DOMAIN 3.0: Preventive Maintenance
This domain requires the knowledge of safety and preventive
maintenance. With regard to safety, it includes the potential
hazards to personnel and equipment when working with lasers,
high voltage equipment, ESD and items that require special disposal
procedures that comply with environmental guidelines. With regard
to preventive maintenance, this includes knowledge of preventive
maintenance products, procedures, environmental hazards and
precautions when working on desktop computer systems.
Content Limits
3.1 Identify the purpose of various types of preventive maintenance
products and procedures and when to use them. Content may include
the following:
- Liquid cleaning compounds
- Types of materials to clean contacts and connections
- Non-static vacuums (chassis, power supplies, fans)
3.2 Identify issues, procedures and devices for protection
within the computing environment, including people, hardware
and the surrounding workspace. Content may include the following:
- UPS (Uninterruptible Power Supply) and suppressors
- Determining the signs of power issues
- Proper methods of storage of components for future use
- Potential hazards and proper safety procedures relating
Laser
- High-voltage equipment
- Power supply
- CRT
- Special disposal procedures that comply with environmental
guidelines
- Batteries
- CRTs
- Toner kits/cartridges
- Chemical solvents and cans
- MSDS (Material Safety Data Sheet)
- ESD (Electrostatic Discharge) precautions and procedures
- What ESD can do, how it may be apparent or hidden
- Common ESD protection devices
- Situations that could present a danger or hazard
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