No TX lights...

Plan A: Make sure the TX batteries are new or fully charged. Make sure each one is in its proper pos or neg orientation and that the silver battery connectors (spring loaded) in the rear of the TX are in place. If is still is NG and won't lite up give it a few gentle taps with you palm. If all else fails.... then give it a good hard whack or two on the side. I have had to give many a HL TX a "wake-up call" but they are pretty rugged. The tank will not start (tank lights will go from flash to steady & will have sounds) w/o a TX command. With one good TX and swapping crystals you can start each tank individually correct?

Plan B: Take 40 north then west to Rt 29 north to Danville, VA and bring them to me on Friday thru Sunday at the AAF Tank Museum to fix for you.