I've had three Polk PA amps. All of which have died. Two used and one new. I bought a used pa330 which was dead upon arrival. Thought oh well. Probably was abused by previous owner. Sent it back and went to bestbuy and bought a brand new one. Worked great for a few days and then it went out also. This time taking out one of my coaxials!! Took it back and got my money back. Being the die hard polk fan i am. I decided to give them a go one more time. I bought a refurb online. This time a POLK PA660. It played music for a couple minutes before it fried and this time taking out one of my Polk DB690's!!! What the hell??? So three amps and two fried speakers later im a little upset!!! All three amps where burnt in the same spot on the pcb board.
Anyways. I was wondering if I can get a schematic for the polk audio pa660 so I can try and fix it???
And just to clarify. Its not on my end. None of them that worked were ever over heated or hooked up wrong. Fuses were always pulled and battery disconnected. Wiring triple and quadruple checked. Not mention I have a kenwood in there now thats never had a problem. My buddys Rockford never had any proplems in the truck either. So im confident its not user error..
I just need a schematic so I can order the parts and try and fix it...
I got my money back on it so I figured Id try and fix it. Unfortunately im stll out the speakers they consumed. :(