Clark 22 question
 

My son decided he wanted to switch radios on his tank with a clark 22 board and it wouldnt do anything so he switched it back to the original and still nothing only thing that happens is static from the speaker does it have to be reprogramed

If it's a 2.4 TX/RX may have to be rebound.

Did he connect the rx correctly when he switched radios? (Signal to signal, 5v to 5v, minus to minus)

Does the TK do any functions with or without sound? (Turret rotation, elevation etc)

Finally, do you see a moist spot on the bottom of the TK on the processor/housing?

Everything looked right,no functions on the tank at all and no spot on the processor