Undocumented feature of 60dBm's Neptune 100-watt HF amplifier

I was rearranging the rat's nest of cabling that constitutes the best-unseen space between my operating desk and the wall yesterday when it happened...Once everything was satisfactorily cleaned and ship-shape, I fired up the Hermes Lite 2 and the Neptune amp that I've had for about a year now...and something wasn't quite right.For starters, the green "ON" LED was blinking slowly rather than