About 4 weeks ago the usb port on my one-year-old FTDX-101D decided to go belly up. After trying everything I could think of I contacted Yaesu for input. They walked me through a couple of additional options, but no joy. They sent me a call ticket for FedEx and off the radio went to California. Tim Factor from Yaesu kept me in the loop regarding what to expect. They replaced the AF assembly under warranty. The radio arrived today, (ahead of schedule) and everything is working fine. Yaesu did everything they promised as far as the repair and timing, and I couldn't be more satisfied.