This unit crapped out while cranking. Used this unit for several days including FM tuner. This board should work fine. Will need to be checked like all old audio for out of spec parts. I would like to say working. But being connected directly to an amplifier board that crapped out it could have been back fed improper current and need repair.
But if you repair these regularly this board is either a great replacement for one that is heat stressed or a plethora of great parts.
Sorry there are no returns or refunds on any electronics parts. So, be sure this fits you Sansui before you pay.