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Is your TV backlight on but the screen stays black? In this tech explained story, I walk through a common but tricky TV repair: what to do when your multimeter shows all the main board and T-Con voltages are perfectly fine, but you still get "No Display." This isn't your average power supply issue. We’ll dive into the logic of LCD and LED TV panel troubleshooting. I’ll show you the essential voltages to check (VDD, VGH, VGL, VCOM, AVDD) and then reveal the one component most technicians swap first when all voltages test OK. This simple trick fixes a huge percentage of these mysterious no-picture faults. Follow along as I: ✔️ Test the critical panel voltages on a real "no display" TV. ✔️ Explain what each voltage does and where to find test points. ✔️ Show you the exact repair step that brought this screen back to life. ✔️ Share my professional troubleshooting flowchart for this scenario. Have you encountered this? Let me know your repair story in the comments below! Like this deep-dive tech explainer? 👍 Smash that LIKE button! Want more practical repair guides and component-level troubleshooting? ▶️ SUBSCRIBE and hit the bell 🔔 for notifications on every new video. Repair Disclaimer: This video is for educational and informational purposes. TV repair involves working with high voltages and sensitive components. If you are not qualified, please seek help from a professional technician. We are not liable for any damage or injury. #TVRepair #ElectronicsRepair #NoDisplay Hashtags: #TVRepair #NoDisplayFix #ElectronicsTroubleshooting #TechExplained #DIYRepair #Tech Explained Story