0927: RIPARAZIONE IMPOSSIBILE BOOSTER TELWIN NON SI ACCENDE PIU'

🔥 Kit catalog for sale: https://www.pieraisa.it/kit 🎁 Recommended Products: https://www.pieraisa.it/amazon ✴️ Support via Patreon:   / pieraisa   🅿️ Paypal Donation: https://www.paypal.com/donate/?hosted... 📣 Forum: https://www.pieraisa.it/forum/ 🎬 Complete list of videos https://www.pieraisa.it/videolist 📌 Free Download Area: https://www.pieraisa.it/download 📺 Website: https://www.pieraisa.it/ ✉ Email: [email protected] 📌NFC tag: https://www.pieraisa.it/nfc I receive a Telwin booster from Massimiliano in Rome that no longer turns on. I carry out the first checks by carrying out measurements on the control board and it is known that the battery voltage is present, vice versa the voltage that powers the logic has disappeared. I identify two faulty components that I replace and thus manage to restart the control part. I carry out tests on the USB ports and the battery pack with currents up to 30 A, until I find an unpleasant surprise. ⏰ Index: 0:00 Prologue and theme song 0:52 Introduction 1:39 First investigation and checks on the booster 3:50 Measure voltages on board 5:40am connect to power and test USB 6:10 Replacement of components 7:00 LED and button test 10.30am Test USB ports loaded 13:00 ripple measurement on USB port 2.10pm transistor short circuit 5.15pm Load test up to 30A 8.30pm Unpleasant anomaly #repairs #electronics #amplifiers #laboratory #instruments #oscilloscopes #tutorials #projects #tv #audio #pieraisa #electronics enthusiasts