My Mark V stopped transmitting on SSB. CW and RTTY are fine. VOX works with two microphones I've checked. All of a sudden no RF output and no indication on the metering (MIC, ALC/COMP), and no audio on the monitor. Processor on or off makes no difference. Nothing changed. I can call Yaesu, but I thought I'd check with the real experts first. Many thanks, Jim N7US