pic v.5 controller not connecting with the tx

Hi,
My students assembled a tumbler for a challenge using a standard base and the communication between the tx and the pic does not work. All connections are working. Cristals are the same frequency and the battery is fully charged and the battery led is green. I tried different cables between the receiver and the pic without succes. All in all i cant get the rx1 or rx2 led status lights to go on.
Thanks,

Hello ccsgtech,

Thanks for taking the time to visit our forum.
Does the system works when directly tethered from Rx1 into the tether port of the Transmitter? If so, most likely your crystals or receiver have failed and need to be replaced.

Let me know your results.

-Eli

I forgot to post it in m question but also i tried plugging the pic to the remote with the yellow wire and that also did not work.
Thanks for the help