Here I am selling a used electronic circuit board F-6198 (Speaker Protection Board).
I have owned this board for a long time and kept it for restoring Sansui equipment. Since I no longer work on Sansui restorations, I am selling my remaining stock of Sansui parts.
The board is for AU Alpha 707L Extra, but most likely intended for the AU Alpha 707 MR or MRX (please refer to the photo from the original Sansui AU Alpha 707 MR / MRX Service Manual) because those Sansui models are very similar to Japan domestic model AU Alpha 707 L Extra.

Condition disclaimer:
This is a used vintage electronic part. The board has not been recently tested and is being sold as-is, as shown in the photos. No guarantee of functionality is implied so I cannot accept return or refund for this item once when that item will be shipped to you. As you can see on pictures, the board is complete and undamaged. Please ensure compatibility with your equipment before purchasing.

Installation should be done by qualified technician only, because it is not simple to do that!