Symbols, Circuits, and Safety
scribe electrical circuit components.
• Explain electrostatic discharge.
• Identify types of drawings and diagrams used for control circuits.
Test Instruments
• List and describe common test instruments.
• Explain digital multimeter operation.
Resistors
• Testing & reading color codes
• Using resistors in circuits
Printed Circuit Board Construction and Troubleshooting
• Describe printed circuit boards.
• List and describe the types of printed circuit boards.
• Discuss how components are mounted on a printed circuit board.
• Explain printed circuit board identification.
• Discuss concerns of handling printed circuit boards.
• Explain printed circuit board troubleshooting.
Soldering and Desoldering
• Explain PC board repair.
• Describe how soldering aids are used for PC board repair.
• Describe the soldering process.
• Explain soldering and rework stations.
• Describe the methods of desoldering.
Diode Applications and Troubleshooting
• Understand diodes.
• List diode materials.
• Explain forward bias.
• Explain reverse bias.
• Understand diode testing.
• List diode applications.
DC Power Supply Operation and Troubleshooting
• Describe DC power supply operation.
• List and describe DC power supply components.
• Explain the operation of rectifiers.
• List and describe DC power supply filters.
• Explain the operation of voltage regulators.
• Explain the operation of voltage dividers.
• Explain troubleshooting DC power supplies.
• List and describe power interruptions.
Bipolar Junction Transistors (BJTs)
• Explain the operation of bipolar junction transistors (BJTs).
• Describe biasing transistor junctions.
• Explain transistors as DC switches.
• Discuss biasing transistors.
• Explain power dissipation.
• Describe procedures for testing transistors.
• List and describe transistor switching applications.
JFETs, MOSFETs, and IGBTs
• Describe the types of field-effect transistors (FETs).
• Explain the operation of junction field-effect transistors (JFETs).
• Explain the operation of metal-oxide semiconductor field-effect transistors (MOSFETs).
• Explain power MOSFETs.
• Describe insulated gate bipolar transistors (IGBTs).
• Explain troubleshooting IGBTs.
Silicon-Controlled Rectifiers (SCRs)
• Define silicon-controlled rectifier (SCR).
• Explain SCR construction.
• Describe methods for troubleshooting an SCR.
• List and describe applications for SCRs.
Triacs, Diacs, and Unijunction Transistors
• Describe the operation of a triac.
• List and describe triac applications.
Solid State Relays
• List and describe solid state relay switching methods.
• Explain solid state relay circuits.
• Describe solid state relay problems.
• Discuss two- and three-wire solid state switches.
• Explain troubleshooting solid state relays.
• List and describe solid state relay applications.
Solid State Technology in Programmable Controllers (PLCs)
• Explain (PLCs).
• Describe areas of PLC applications.
• List and describe the PLC sections. Describe interfacing circuits.
Explain troubleshooting PLC systems.