Been looking a while. TA-DA!!! Here is the part you need. Was not able to test. Unit had blown fuse.

Visually inspected for defects. Switch has very nice lock in. Seems to be in serviceable condition 

All switches will need cleaning for nest results.

Sold AS/IS for parts. Not working. No warranty implied.

Sorry no returns or refunds on electronics parts. Please be sure this fits your Somy before you pay.

Another Offering From, Gary…sansuioldaudiophile 

To all international buyers. I do not set shipping prices..eBay does. If you need more than one part please contact me with your parts list. I will do a listing for you.  The eBay shipping system does not always charge correctly for combined shipping for multiple parts orders.