Rebuilt and tested Sansui 9090DB 8080DB 890DB 990DB 7070, F2624 driver board 1 available If your Receiver has a red protection Light on and no sound most likely is the driver board ,You Must know how to adjust the Bias and DC settings,$150.$25.00 off for the old one if not damaged or burnt,Will ship for cost of shipping,NO! Scammers,