Clearly, it can't be flown until I get this problem cleared up. I suppose I can try swapping out different parts of the system until I find a culprit. It does not appear to be a problem with either the Tx or Rx battery. Being in (rural) Japan and not under FCC restrictions I can also try swapping out the TX and RX crystals -- which I've already had to do to use my American purchased Airtronics VG6000 radio in Japan anyway.

If the Rx were damaged in the crash, what's the likely type of damage? Is the crystal the part most delicate part? This wasn't a devistating crash, the only real damage to the fuse was a loosened firewall and the nylon bolts of the wheel bracket being cut through (as was supposed to happen). the wing and tail feathers were all unscathed. The Rx was well protected and wrapped in foam.