Hello friends, I got a compact equipment, with turntables, from the ancients, it was wrong but the radio was playing, I repaired the CD, and a channel was playing ... testing I made a mistake and put the pins 11 and 12 of the audio amplifier BA5412..and I started to make a continuous and sound sound ,,, brrrrrr or something like that even without playing or radio or anything ... total ... I bought the built-in blissful ... but now it doesn't give me any sound with the new .... any ideas to continue the repair ,,,? ... I appreciate any ideas.