تدريب عملي: تتبع الفولت وإصلاح أعطال البور في الشاشات (حل لغز مكثف الألكو) 📺🛠️

Have you ever encountered a power-off issue with a monitor, and replacing the bulging capacitors didn't solve it? In this video, we'll go through a real-world, hands-on process of repairing a 19-inch monitor that has completely failed to power on. We'll learn step-by-step how to visually inspect components, use a multimeter to measure voltages (hot and cold), and troubleshoot problems when readings give us false positives. We'll uncover the secret of the "ALCO capacitor" and how it causes voltage fluctuations and prevents the monitor from turning on, even if it appears fine from the outside. What you'll learn in this video: ✅ The correct way to remove and replace faulty capacitors. ✅ How to choose alternative values ​​for capacitors (volts and microfarads). ✅ The secret to measuring the ALCO capacitor and the difference between the actual voltage and the dummy voltage. ✅ The difference between a data circuit and an inverter (backlight) circuit. ✅ Professional tips for beginners in electronics repair. 00:00 Introduction and initial inspection of the motherboard components 01:14 Fuse testing and initial multimeter measurements 01:52 How to choose replacement capacitors (voltage and microamperes values) 03:55 Practical demonstration of how to professionally remove capacitors 06:03 The correct way to install capacitors and observe polarity 07:40 Testing the screen after replacing the capacitors (shock of no power!) 08:48 Troubleshooting: Measuring DC voltage and voltage fluctuations 09:40 Unraveling the mystery of the Alco capacitor and measuring 300 volts 11:17 Replacing the Alco capacitor and restoring voltage stability 12:36 Assembling the screen and testing the backlight 13:48 Summary of practical training and closing tips 📚 Do you want to become an electronics professional? Don't forget to ask about my book and comprehensive video course that takes you from beginner to expert in repairing all home and electronic devices. 🔔 Don't forget to subscribe to the channel, activate the bell icon, and share the video to support technical educational content! Kingdom of Saudi Arabia: #SaudiArabia #Riyadh #Jeddah #Mecca #Medina #Dammam #Khobar #Tabuk #Abha #Taif #Buraidah #Hail #Najran #Jazan #AlAhsa #UAE #Dubai #AbuDhabi #Sharjah #Ajman #RasAlKhaimah #Fujairah #AlAin #UmmAlQuwain #Oman #Muscat #Salalah #Sohar #Nizwa #Sur #AlBuraimi #Jordan #Amman #Irbid #Zarqa #Aqaba #Salt #Madaba #Yemen #Sanaa #Aden #Taiz #Mukalla #Ibb #AlHudaydah #ScreenRepair #ElectronicsMaintenance #VoltageTrace #PowerFaults #ScreenMaintenance #Electronics #MaintenanceTraining Group Facebook   / 492230399105132   Thank you if any of my videos made you smile ❤ Glory be to God and praise be to Him, Glory be to God, the Almighty ♥ (There is no god but You, Glory be to You, indeed I was among the wrongdoers) ✅ For immediate support with your inquiries? Please join the channel    / @midobrandtech   Thanks for watching :) If you liked the video, don't forget to support me with a "like" and "Subscription" #midobrand #Computer_Education #Electronics_Maintenance #Electronics_Maintenance_Training #midobrand #Computer_Maintenance #Computer_Assemblies #Satellite_Receivers #Gulf_Computers #Gulf_Electronics_Maintenance #Gulf_Technology #Riyadh_Electronics #Dubai_Maintenance #Gulf_Technology #Abu_Dhabi_Electronics #Gulf_Technology_Experts #Gulf_Computer_Maintenance #Your_Computer_Is_In_Safe_Hands #Electronics_Repair #Home_Maintenance #Device_Repair #Gulf_Technology #Computer_Repair #Shaver_Repair #DIY_Gulf #Saudi_Technology #Technical_Tutorials #Headphone_Repair #Electronics_Technician #Radio_Repair #Home_Electronics #Home_Technology #GulfTech #BestReceiver #ProductIRecommendBuying Please subscribe to the channel and activate the bell. Your support motivates me. ============================================================