Hi im new on here and need some help for fixing my new toy.It switches on and all the led.s light up exept +12v and buzzing from speaker for 30 seconds , None of the board or reel lights up. I ve also removed the leaking 2.4v battery and solderd wires to repair broken track, still no luck.Any help would be much appreciated,The mpu is a M1B,Dont know what the last owner has done as there are a few wires disconnected,