Hello I have an AMP6 here I have been putting together. Everything was going swimmingly until the very end. Testing was fine I got the green led on, power was good. Then I made a mistake. It seems the voltage regulator was touching the heat sink. Anyways something smoked so I replaced both the rectifier and regulator. Now when speakers are connected I get a motorboating sound so I presume the chip may be damaged. The green led also does not come on any longer. I tried to bypass the regular power supply with a 12VDC source but nothing changes.
I have triple checked all connections diode and capacitor orientation. Could I really have destroyed the chip that easily?
Thank you for your replies