Yamaha P7000S Amplifier power supply Faulty/Blown

🔧 Yamaha P7000S Repair – No Power Issue (IGBT, IR2011 & SG3525N Replaced) In this repair video, we diagnose and fix a Yamaha P7000S that came in completely dead — no power, no display, no output. 🔍 Fault Symptoms: No power-up No relay click No output signal Dead power supply section 🛠 Diagnosis & Repair Process: After systematic troubleshooting of the power supply stage, we found multiple faulty components: ✔ Shorted IGBT in the switching section ✔ Faulty regulator affecting voltage stability ✔ Damaged IR2011 gate driver IC ✔ Defective SG3525N PWM controller All defective components were replaced, followed by controlled power-up testing, voltage verification, and full load audio testing to confirm stable operation. This repair highlights the importance of checking the entire switching power supply circuit when dealing with a no-power condition. ⚠️ High-voltage SMPS repairs can be dangerous — always use proper safety procedures and isolation equipment. If your Yamaha P7000S has no power, this video walks you through the real troubleshooting steps and component-level repair process. 👍 Like, Comment & Subscribe for more pro audio amplifier repairs and deep-dive diagnostics. 📌 Hashtags: #YamahaP7000S #AmplifierRepair #NoPowerFix #IGBTRepair #IR2011 #SG3525N #SMPSRepair #PowerAmplifier #ProAudioRepair #ElectronicsRepair #AudioTech #LiveSoundTech