I have a kicker that doesnt seem to fully switch on.On power up the red led comes on for 1,2 seconds then goes out and green one comes on,is this normal with all kicker amps?I have replaced U2 a TL494CN.I have noticed unit isnt supplying the rca pcb +15v nor the -15v,the gnd rail on main board supplying this 2nd board has been repaired before!As its a double sided pcb it would be time consuming to trace circuit,does anybody supply or know of anybody that supplies kicker manuals?I am waiting for kicker to get back to me.Thank you.