Comment tester la plupart des composants sur une carte d'alimentation -Télévision LG en panne

This video covers troubleshooting an LG TV power supply board, explaining how to test most of its components, as well as the screen's construction and how to test the backlight LEDs. Chapters: Introduction, initial observations: 00:00 MOSFET transistor testing: 03:28 Varistor testing: 06:14 NTC thermistor testing: 07:38 Optocoupler testing (2 methods): 09:25 Schottky diode testing: 14:10 Zener diode testing: 14:48 Diode bridge (Graetz) testing: 15:54 Visualization of the primary and secondary sides of the circuit: 19:30 Testing and identifying ceramic capacitors: 20:41 Review of components to be replaced: 22:57 First no-load power supply test: 24:05 Power supply tests under load: 24:38 Television malfunction, suspected cause Motherboard: 25:43 TV screen functionality test: 26:36 Screen disassembly and LED strip testing: 27:47 Simple diode tester:    • DIY - Testeur simple de diodes (DEL, Zener...   Optocoupler: What is it and how to test it?:    • OPTOCOUPLEUR :  c'est quoi et comment le t...   Preventing the circuit breaker from tripping during a short circuit:    • DIY - Éviter le déclenchement du disjoncte...   #troubleshooting #LG #television #mosfet #electronics #varistor #thermistor #zener #schottky #diode #graetz #LED #optocoupler #photoresistor #powerboard #component #backlight