OK, I started this little adventure back in Sept. 2017 and have been working on and off ever since, did the f1040 retrofit and blew up one the of the boards. Poor quality soldering, bought some new f6013 boards from bonzorro and installed them, set bias, numbers are LC 21.1 mA, RC 20.9 mA, put fuses back in and checked transistors as described in service manual, 809 -37.3 V DC, 807-21.4 V DC, 810-37.3 V DC, 808-21.1 V DC. Did the DC check as described here and got 2.2 mV and 3.4 mV. bonzorro has been more than helpful in guiding me through this effort. At a lost as to what to do next so thought I would post this to the Sansui world and see if there is anyone out there who can help or guide me to get the 807/808 V DC up. bonzorro said the numbers for 807/808 should be near or the same as the 809/810 numbers. Any and all help will be greatly appreciated. Thanks dipo.