Hello everyone I'm new to this site.I need some information due to my hobby store not being able to assist me. I bought a Heli/MAX model AXEcp and flew it once the battery was full then it died I put it to charge and went back out an hour late when the battier was charged. After turning on and trying to accelerate it caught fire. When I blew out the fire and took the canopy off both receiver and the "E board" were burnt. I went back to my hobby store to purchase replacements for both pieces that were burnt,and even new crystals for receiver and transmitter.I'm still at a loss of what could be wrong if anybody has any other suggestions please write back.

If one of the servo is blown none of the other servos will work?

If my transmitter and receiver in my helicopter indicate 72.870mhz but, my dealer at the hobby store sold me a 72.670mhz will that make a difference?