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This SMPS Power Supply Has No OptoIsolator or TL431 How Does It Work Switch Mode Repair

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Lesson extensions

Lessons List | 64 Lesson
LER 047 ATX 600W PSU Repair Tutorial How does the power supply circuit work How to repair ATX
01:30:27

LER 047 ATX 600W PSU Repair Tutorial How does the power supply circuit work How to repair ATX
LER 057 ATX PSU Repair 5V Standby Voltage Low Will Not Start Component level Repair
01:05:00

LER 057 ATX PSU Repair 5V Standby Voltage Low Will Not Start Component level Repair
LER 059 Lenovo Laptop Power Supply Repair
01:08:12

LER 059 Lenovo Laptop Power Supply Repair
LER 060 600W ATX Power Supply PSU Repair Part 2
00:43:11

LER 060 600W ATX Power Supply PSU Repair Part 2
500W ATX PSU Repair Faulty with a Burning Smell LER 067
01:09:10

500W ATX PSU Repair Faulty with a Burning Smell LER 067
ATX Power Supply 5V Standby Low PART 2 LER 069
00:14:49

ATX Power Supply 5V Standby Low PART 2 LER 069
ATX PSU Tester Analyzer Review Automated Power Supply Tester
00:21:10

ATX PSU Tester Analyzer Review Automated Power Supply Tester
How To Repair 5V Standby on ANY ATX PSU
01:15:37

How To Repair 5V Standby on ANY ATX PSU
Light Bulb Current Limiter Dim Bulb Tester FAILED
00:10:31

Light Bulb Current Limiter Dim Bulb Tester FAILED
How To Repair ATX PSU The Full Tutorial Computer Power Supply Repair
01:05:38

How To Repair ATX PSU The Full Tutorial Computer Power Supply Repair
500W ATX PSU 5V Standby OK but does not turn on A more complex repair LER 088
01:59:28

500W ATX PSU 5V Standby OK but does not turn on A more complex repair LER 088
Repair 500W ATX PSU Faulty with a Burning Smell Part 2
00:53:14

Repair 500W ATX PSU Faulty with a Burning Smell Part 2
How to test TL494 KA7500 PWM Controller IC
00:15:24

How to test TL494 KA7500 PWM Controller IC
ATX PSU Repair A Tricky one
00:50:52

ATX PSU Repair A Tricky one
ATX PSU REPAIR A TRICKY ONE Part 2 Learn Electronics Repair LER 098
00:41:02

ATX PSU REPAIR A TRICKY ONE Part 2 Learn Electronics Repair LER 098
How To Recap A Power Supply PSU LER 101 ATX PSU Replace Capacitors Recapping
00:34:35

How To Recap A Power Supply PSU LER 101 ATX PSU Replace Capacitors Recapping
ATX PSU has 5V Standby But Won t Start Check this hidden power rail found in almost all ATX PSU
00:09:33

ATX PSU has 5V Standby But Won t Start Check this hidden power rail found in almost all ATX PSU
ATX PSU 5V STANDBY OK ALL OTHER VOLTAGES TOO LOW LER 106
01:21:25

ATX PSU 5V STANDBY OK ALL OTHER VOLTAGES TOO LOW LER 106
ATX PSU All Output Voltages Too Low Feedback Circuit Diagnosis LER 108
00:46:33

ATX PSU All Output Voltages Too Low Feedback Circuit Diagnosis LER 108
ATX PSU 5V STANDBY OK OUTPUT VOLTAGES LOW FIXED LER 109
00:21:33

ATX PSU 5V STANDBY OK OUTPUT VOLTAGES LOW FIXED LER 109
ATX Power Supply PSU Repair DO THIS FIRST
00:11:35

ATX Power Supply PSU Repair DO THIS FIRST
ATX PSU Fan repair How to repair Computer Fan cooling fans case fan Noisy Fan ENGLISH
00:18:39

ATX PSU Fan repair How to repair Computer Fan cooling fans case fan Noisy Fan ENGLISH
Ten Faulty ATX PSUs Initial Diagnosis and checks
00:16:24

Ten Faulty ATX PSUs Initial Diagnosis and checks
ATX PSU Mysterious Fault Could you repair this PSU
01:51:13

ATX PSU Mysterious Fault Could you repair this PSU
MYSTERY ATX PSU FAULT SOLVED
00:28:01

MYSTERY ATX PSU FAULT SOLVED
This ATX PSU Tester Analyser is USELESS Let s make it work properly Power Supply Analyzer Mod
00:49:07

This ATX PSU Tester Analyser is USELESS Let s make it work properly Power Supply Analyzer Mod
ATX PSU REPAIR All voltages unstable Learn Electronics Repair 138
01:07:32

ATX PSU REPAIR All voltages unstable Learn Electronics Repair 138
Two ATX Power Supplies with unstable 5V standby How to fix them ATX PSU Repair LER 141
00:34:04

Two ATX Power Supplies with unstable 5V standby How to fix them ATX PSU Repair LER 141
Lynx RS4 2000 PA Amplifier Repair SMPS Switch Mode PSU Fault LER 146
01:00:11

Lynx RS4 2000 PA Amplifier Repair SMPS Switch Mode PSU Fault LER 146
500W ATX PSU 5V Standby OK but does not turn on A more complex repair Part 2 LER 151
01:23:59

500W ATX PSU 5V Standby OK but does not turn on A more complex repair Part 2 LER 151
LER 156 Let s Fix Some Computers One PC Completely Dead One Powers On But Does Not Boot
00:26:12

LER 156 Let s Fix Some Computers One PC Completely Dead One Powers On But Does Not Boot
LER 163 AEQ Bravo Audio Mixer Repair No Output
00:48:51

LER 163 AEQ Bravo Audio Mixer Repair No Output
Learn Electronics Repair Christmas Special 2 How NOT To Repair a 1500W Modular ATX PSU
00:58:05

Learn Electronics Repair Christmas Special 2 How NOT To Repair a 1500W Modular ATX PSU
PC Computer VGA Monitor Power Supply Repair
00:46:43

PC Computer VGA Monitor Power Supply Repair
All You Need To Know About ATX PSU To Fix Stuff The Complete ATX Power Supply Repair Guide Tutorial
02:13:07

All You Need To Know About ATX PSU To Fix Stuff The Complete ATX Power Supply Repair Guide Tutorial
How To MOD HACK Change ANY Switch Mode Power Supply Output Voltage An SMPS Tutorial Guide
00:17:33

How To MOD HACK Change ANY Switch Mode Power Supply Output Voltage An SMPS Tutorial Guide
Small Switch Mode Power Supply Repair Guide Consumer Electronics SMPS How To Fix
00:44:52

Small Switch Mode Power Supply Repair Guide Consumer Electronics SMPS How To Fix
Dead 200W Power Inverter Repair 12V DC 110V 220V AC
00:37:00

Dead 200W Power Inverter Repair 12V DC 110V 220V AC
Smart Garage Door Power Supply PSU Repair No info or schematics can we fix it
00:23:35

Smart Garage Door Power Supply PSU Repair No info or schematics can we fix it
All You Need To Know About Power Adapters To Fix Stuff Part 1
02:17:18

All You Need To Know About Power Adapters To Fix Stuff Part 1
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Course Description

Lenovo Laptop Power supply repair course, in this course dedicated to equipping participants with the knowledge and skills required to diagnose and repair power supply issues in Lenovo laptops. Throughout this course, participants will delve into various aspects of power supply repair, including troubleshooting techniques, identifying common issues, and repairing or replacing faulty components. With hands-on training and practical demonstrations, participants will learn how to assess power adapter functionality, test power connectors and cables, and diagnose power supply circuitry on Lenovo laptop motherboards. Additionally, participants will explore advanced diagnostic tools and methodologies to accurately diagnose and rectify power supply problems. Whether you're a beginner or an experienced technician, this course offers valuable insights and practical expertise to excel in Lenovo laptop power supply repair.
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