Here you have a chance to buy F-2846 Sansui board for amplifier AU919.
As you can see on the pictures, the board was carefully removed from amplifier and as you can see on the pictures, it is without damages and burned elements. That board is coming with all switches and balance potentiometer.
Please click on picture to get it bigger, and please look on all pictures.
Installation should be done by qualified technician only, because it is not simple to do that!