Electrical and Electronics Repair Course

Lesson 1 • Electrostatic Discharge Prevention

Explains how ESD damages sensitive components and how to control it at the workbench. Protects devices under repair from invisible damage caused by static electricity.

Lesson 2 • Lockout and Tagout Procedures

Teaches the full lockout/tagout sequence for de-energising equipment before service. Proper execution prevents accidental re-energisation during maintenance tasks.

Lesson 3 • Regulatory Compliance and Documentation

Reviews applicable safety standards, inspection records, and incident reporting requirements. Compliance documentation protects both the technician and the organisation legally.

Lesson 4 • Personal Protective Equipment for Electrical Work

Covers selection and inspection of insulated gloves, face shields, and arc-rated clothing. Correct PPE use is compulsory before working on energised or recently energised equipment.

Lesson 1 • Passive Electronic Components

Identifies resistors, capacitors, and inductors by function, marking codes, and behaviour. Connects component knowledge to circuit analysis tasks.

Lesson 2 • Power Supply Fundamentals

Explains AC-to-DC conversion, regulation, and filtering stages found in most devices. Prepares students to evaluate power supply health during diagnostics.

Lesson 3 • Core Electrical Quantities and Units

Covers voltage, current, resistance, and power with SI units. Establishes the measurement language used throughout all subsequent chapters.

Lesson 4 • Active Components and Semiconductor Basics

Introduces diodes, transistors, and integrated circuits as active control elements. Provides the foundation for understanding amplification and switching circuits.

Lesson 1 • Specialised Diagnostic Instruments

Introduces LCR meters, clamp meters, and insulation testers for specific measurement needs. Expands the technician's toolkit beyond basic multimeter capability.

Lesson 2 • Measurement Accuracy and Safety Practices

Addresses calibration, lead quality, and safe working voltage categories. Ensures measurements are reliable and personnel are protected from electrical hazards.

Lesson 3 • Oscilloscope Setup and Waveform Analysis

Teaches probe compensation, timebase, and trigger settings for capturing waveforms. Students interpret amplitude, frequency, and distortion from live signals.

Lesson 4 • Signal Generators and Function Sources

Explains how to inject known test signals to isolate faults in analog and digital circuits. Connects signal injection to systematic fault isolation strategies.

Lesson 1 • Voltage and Resistance Analysis

Uses in-circuit voltage and resistance readings to confirm or eliminate suspected faults. Connects measurement skills from Chapter 2 to structured diagnostic decisions.

Lesson 2 • Half-Split and Signal-Tracing Methods

Applies binary division and signal-tracing strategies to isolate faults efficiently. These methods minimise the number of tests needed to locate a defective stage.

Lesson 3 • Diagnostic Documentation and Root Cause Analysis

Records findings, corrective actions, and root causes in a structured format. Proper documentation supports repeat-failure analysis and continuous improvement.

Lesson 4 • Fault Classification and Symptom Analysis

Distinguishes intermittent, hard, and latent faults and maps symptoms to probable causes. Accurate symptom analysis directs the technician to the correct diagnostic path.

Lesson 1 • Surface-Mount Soldering and Rework

Covers hand soldering, hot-air rework, and paste-and-reflow techniques for SMD components. Addresses the dominant assembly technology found in modern electronic devices.

Lesson 2 • Desoldering Methods and Component Removal

Explains wick, pump, and hot-air removal techniques for through-hole and SMD parts. Safe removal prevents pad and trace damage that would require additional PCB repair.

Lesson 3 • Soldering Station Setup and Iron Selection

Covers temperature-controlled station setup, tip selection, and tinning for different joint types. Proper setup prevents thermal damage and ensures consistent joint quality.

Lesson 4 • Through-Hole Soldering Techniques

Teaches correct heat application, solder feed, and inspection criteria for through-hole joints. Forms the baseline manual soldering skill before surface-mount work is introduced.

Lesson 1 • Amplifier Circuit Diagnostics

Applies bias point measurement and gain verification to locate faults in amplifier stages. Builds directly on transistor theory and oscilloscope skills from earlier chapters.

Lesson 2 • Sensor and Transducer Circuit Maintenance

Covers calibration verification and signal conditioning faults for common sensor types. Sensor circuits bridge the physical world to electronic control systems in most devices.

Lesson 3 • Power Regulation and Rectifier Repair

Identifies failed rectifier diodes, shorted regulators, and degraded filter capacitors in power stages. Restoring clean DC rails is often the first step in resolving downstream circuit faults.

Lesson 4 • Operational Amplifier Troubleshooting

Covers op-amp configuration identification, offset measurement, and rail-to-rail output checks. Op-amps appear in nearly every analog subsystem, making this a high-priority skill.

Lesson 1 • Microcontroller Peripheral and Firmware Faults

Identifies GPIO misconfiguration, watchdog resets, and firmware hang conditions in MCU systems. Distinguishes hardware faults from software-induced failures to direct the correct repair.

Lesson 2 • Sequential Logic and Timing Analysis

Diagnoses flip-flop, counter, and register faults using timing diagram comparison. Timing violations are a leading cause of intermittent failures in digital systems.

Lesson 3 • Communication Bus Diagnostics

Covers I2C, SPI, UART, and CAN bus signal analysis for protocol-level fault isolation. Bus faults often appear as device non-response or data corruption in embedded systems.

Lesson 4 • Memory and Storage Device Testing

Tests RAM, flash, and EEPROM integrity using read/write patterns and checksum verification. Memory faults cause unpredictable system behaviour that mimics many other failure types.

Lesson 1 • Failure Mode and Effects Analysis

Uses FMEA to rank failure modes by severity, occurrence, and detectability for prioritisation. FMEA output directly informs which maintenance tasks deliver the greatest reliability improvement.

Lesson 2 • Preventive Maintenance Planning

Defines maintenance intervals, task lists, and resource requirements for a device population. A structured plan converts reactive repair into predictable, cost-controlled maintenance activity.

Lesson 3 • Predictive Maintenance Techniques

Applies vibration analysis, thermal imaging, and trend monitoring to predict failures before they occur. Predictive methods reduce unnecessary part replacement while preventing unexpected breakdowns.

Lesson 4 • Inspection and Cleaning Procedures

Covers visual inspection criteria, contact cleaning, and thermal interface renewal for common device types. Regular inspection catches degradation before it progresses to functional failure.