Appliance categories, mechatronics overview, PCB types, wiring systems, component identification, and technician workflow.

Multimeter, clamp meter, oscilloscope basics, soldering station, hot-air tools, insulation tester, PPE, and electrical safety.

BLDC motors, induction motors, drain motors, solenoid valves, hall sensors, thermistors, NTC sensors, door/tilt sensors & testing methods.

SMPS topology, rectifiers, filters, MOSFET testing, IGBTs, inverter drive systems, high-voltage safety, and common failures.

Testing diodes, capacitors, ICs, transistors, relays; short-circuit finding, current path tracing, voltage rail testing, and circuit interpretation.

Motor driver circuits, door lock systems, water inlet/outlet valves, pressure sensor faults, panel/display issues, and PCB repairs.

Thermostat, sensors, compressor relay circuits, inverter PCB repair, cutoff problems, cooling issues, and overload protector testing.

Indoor/outdoor PCB repair, fan motor issues, inverter control board errors, sensor diagnostics, capacitor faults, and high-voltage safety.

Magnetron circuits, HV transformer, capacitor & diode testing, induction IGBT circuits, coil faults, temperature sensors, PCB repair.

Universal motor repair, carbon brush issues, overload switches, PCB-based speed control circuits, and wiring replacement.

Touch panels, LED/LCD displays, tact switches, membrane keypads, wiring harness repair, and data line troubleshooting.

Basic firmware flashing, microcontroller resets, EEPROM checking, error-code diagnostics, and software-assisted hardware repair.

Hands-on repair of washing machine PCB, fan motor, inverter boards, refrigerator start relay circuit, and microwave safety circuits.

Full appliance diagnosis + PCB repair project, testing demonstration, and final evaluation leading to certification.