I hope i'm posting this in the right catagory. I have a Tapco C-12 Mixer that is in need of repair and i want to do it myself can anyone give some advice on this mixer? All I know is that it has power and that the VU meters are reading full load with no input/output. and all levels and controls turned down. I would love it if you can give me a starting point as soon as possible. Thank you all in advance that reply.