Consumer Electronics Technician Course

Lesson 1 • Signal Types and Waveforms

Explains analog and digital signal characteristics and how they appear on test equipment. Connects waveform knowledge to fault diagnosis in later chapters.

Lesson 2 • Reading Schematics and Datasheets

Teaches standard schematic symbols and datasheet interpretation. Students can trace signal paths and extract key electrical specifications for components.

Lesson 3 • Safety and Electrostatic Discharge Control

Covers electrical hazards, lockout procedures, and ESD protection practices. Safe work habits established here apply throughout the entire course.

Lesson 4 • Electronic Components Identification

Introduces passive and active components found in consumer electronics. Students learn to identify, read markings, and describe the function of each part.

Lesson 1 • Oscilloscope Fundamentals

Teaches timebase, trigger, and probe calibration for capturing waveforms. Students connect oscilloscope skills directly to signal tracing in consumer devices.

Lesson 2 • Power Supply and Load Testing

Explains bench power supply controls and load simulation for testing circuits under realistic conditions. Prepares students for power-rail diagnostics in later chapters.

Lesson 3 • Digital Multimeter Operation

Covers range selection, probe placement, and interpreting readings for DC and AC measurements. Accurate multimeter use underpins every diagnostic task in the course.

Lesson 1 • Soldering Station Setup and Iron Care

Covers tip selection, temperature calibration, and station maintenance for consistent results. Proper setup prevents cold joints and tip degradation throughout the course.

Lesson 2 • Desoldering and Component Removal

Covers solder wick, vacuum pumps, and hot-air removal for through-hole and SMD parts. Minimizes PCB damage during component extraction.

Lesson 3 • BGA and Advanced Rework

Explains BGA reballing, underfill removal, and infrared rework station operation. Prepares students for high-value repairs on smartphones and laptops.

Lesson 4 • Surface-Mount Device Soldering

Introduces paste application, reflow techniques, and hand soldering of SMD resistors, capacitors, and ICs. Builds the fine-motor skills needed for modern PCB repair.

Lesson 1 • Voltage Rail Mapping and Testing

Teaches systematic measurement of all supply rails against reference values. Students build a voltage map that guides fault isolation to specific power stages.

Lesson 2 • Common Power Supply Failures

Covers failed capacitors, shorted MOSFETs, blown fuses, and faulty PWM controllers. Students learn symptom-to-component correlation for rapid diagnosis.

Lesson 3 • Linear and Switching Power Supply Theory

Explains rectification, filtering, and regulation topologies used in consumer electronics. Provides the theoretical basis for diagnosing power-rail failures.

Lesson 4 • Battery and Charging Circuit Repair

Explains lithium-ion cell management, charge controllers, and protection ICs. Students diagnose and repair charging failures in portable consumer devices.

Lesson 1 • Audio Amplifier Circuit Diagnosis

Covers class-D and class-AB amplifier topologies, speaker impedance, and audio signal tracing. Students isolate distortion, no-sound, and noise faults in consumer audio circuits.

Lesson 2 • Panel and T-Con Board Repair

Explains timing controller board functions, ribbon cable connections, and panel fault patterns. Students distinguish repairable board faults from panel replacement scenarios.

Lesson 3 • Display Technology Overview

Compares LCD, OLED, and LED panel construction and signal interfaces. Establishes the structural knowledge needed to interpret display fault symptoms.

Lesson 4 • Backlight and Inverter Diagnosis

Covers LED driver circuits, inverter boards, and backlight strip testing. Students trace backlight faults from symptom to failed component.

Lesson 1 • Microcontroller Boot Sequence Analysis

Explains reset circuits, clock generation, and firmware loading stages. Students use logic analyzers to verify each boot stage and isolate startup failures.

Lesson 2 • Flash Memory and EEPROM Diagnosis

Covers NAND flash, NOR flash, and EEPROM read/write operations and failure modes. Students use programmers to back up, erase, and reflash memory devices.

Lesson 3 • Logic-Level Fault Isolation

Applies logic analyzer captures and signal injection to isolate stuck buses and faulty ICs. Integrates digital diagnostic skills with the analog techniques from earlier chapters.

Lesson 4 • Digital Logic and Bus Systems

Reviews logic gates, flip-flops, and common bus protocols used in consumer devices. Provides the digital foundation for tracing communication faults.

Lesson 1 • USB and Charging Port Repair

Covers USB 2.0, 3.x, and USB-C connector pinouts, data line testing, and port replacement. Students resolve charging, data transfer, and video output failures.

Lesson 2 • Wi-Fi and Bluetooth Module Diagnosis

Covers combo module architecture, antenna connector inspection, and driver-level fault separation. Students distinguish hardware failures from firmware and configuration issues.

Lesson 3 • Cellular Modem and SIM Circuit Repair

Explains baseband processor interfaces, SIM card circuits, and RF front-end components. Students diagnose no-service and SIM-detection failures in mobile devices.

Lesson 4 • HDMI and Display Output Faults

Explains HDMI signal path, EDID communication, and HDCP handshake failures. Students trace and resolve no-output and intermittent display connection faults.

Lesson 1 • Repair Documentation and Work Orders

Covers intake forms, fault descriptions, parts lists, and repair notes for professional records. Accurate documentation supports warranty claims, quality audits, and repeat-repair prevention.

Lesson 2 • Continuous Improvement in the Workshop

Introduces root-cause analysis, repair trend tracking, and process improvement cycles. Students use data from completed repairs to reduce diagnostic time and error rates.

Lesson 3 • Fault Diagnosis Methodologies

Compares symptom-based, signal-flow, and divide-and-conquer diagnostic strategies. Students select the most efficient method based on device type and fault complexity.

Lesson 4 • Quality Control and Final Testing

Covers functional test checklists, burn-in procedures, and customer acceptance criteria. Ensures every repaired device meets performance standards before return.