EPAS 1

• This module was designed and written to help you master the essential knowledge to prepare and to assemble the electronics component
• The scope of this module permits it to be used in many different learning situations
• The language used recognizes the diverse vocabulary level students
• Learning Objectives

  • Plan and prepare for tasks to be undertaken
  • Prepare hand tools
  • Use appropriate hand tools and test equipment
  • Observe proper care and maintenance of hand tools and equipment
• Desoldering tool


  Used in removing soldered wires and components on printed circuit boards for troubleshooting and repair purposes
• Soldering iron


  The most versatile tool in soldering semiconductor devices and other electronic components because of its tolerable heat generation at 30watts to much heat applied to such components might destroy them during the process of soldering
• Soldering Stand


  A gadget for resting the soldering iron when not in use during the soldering process for safety
• Long nose pliers


  Used for holding, bending, and stretching the lead of electronic components or connecting wires
• Side cutter


  A wire-cutting plier, though they are not used to grab or turn anything, but are used to cut wires
• Wire stripper


  For removing the insulation of wires
• 12V Mini-Drill


  Used to bore or drill holes in the printed circuit board (PCB) with sizes from 1/32" – 1/16"
• Portable Electric Drill


  Used for a boring hole(s) in plastic or metal chassis with the use of drill bits having sizes from 1/6" to approximately 1/4"
• Utility Knife


  A common tool used in cutting various trades and crafts for a variety of purposes
• Hacksaw


  Used for cutting metals. Some have pistol grips that keep the hacksaw firm and easy to grip
• Magnifying Glass


  A convex lens that is used to produce a magnified image of an object. The lens is usually mounted on a frame with a handle
• Paint Brush


  It is of made of bristles set in the handle, use for cleaning dirty parts of a circuit or an object
• Volt-Ohm-Millimeter (VOM)


  For measuring resistance, voltage and current
• Continuity tester


  For testing whether there is a passage of electric current in a circuit, e.g. for testing fuse
• Oscilloscope


  A piece of electronic test equipment that allows signal voltages to be viewed, usually, as a two-dimensional graph of one or more electrical potential differences (vertical axis) plotted as a function of time or some other voltage (horizontal axis)
• Signal generator


  A device that produces simple waveforms. Such devices contain an electronic oscillator, a circuit that is capable of creating a repetitive waveform. These are typically used in simple electronics repair and design where they are used to simulate a circuit under test
• DC voltmeter


  A device which measures the DC voltage applied to it, by moving the pointer against the perfectly calibrated scale
• Micrometer Caliper


  For measuring the diameter of wires
• In every field of work, there are safety rules and practices to follow to prevent an accident
• Safety precautions using tools and equipment


  • Handle sharp edge and pointed tools with care
  • Proper handling of tools, equipment, and materials
  • Orderliness in the shop
  • Awareness of the things around the shop
  • Presence of mind while working
• Tools handle


  • Handles should fit handle well
  • Use the right tools that are appropriate for the repair
  • The handles should have no sharp edges or to prevent the occurrence of an accident
• Improper use of a screwdriver: The use of a screwdriver is not designed for engraving or hammering, Incorrect placement or use (tip) of a screwdriver, Never use pliers on and make a screwdriver for doing the project
• Improper use of pliers

  • Do not increase the handle length of pliers to gain more leverage
  • Do not substitute pliers for a wrench when turning bolts and nuts
  • Never use pliers as a hammer on the handle
  • Remove cut hardened wires only with pliers designed for that purpose
  • Never cut the wires at the right angle
• Utility Knives/Blades


  • Never use dull blades because they require more force, thus are more likely to slip. Replace the blade when it starts to "tear" instead of cut
  • Always observe the area before leaving a knife unattended with the blade exposed