The front-end pin out

1. GND
2. AGC input
3. ATT-control
4. 1nF (to GND)
5. RF-in (originally)
6. ATT-control
7. Marker input (see note below)
8. GND
9. FM IF out 10.7MHz
10. GND
11. RX 8V
12. GND
13. Tune input
14. SSB IF out 10.7MHz
15. NB input
16. GND
17. LO input
18. GND

Notes;

pin5: I have a separate cable to a SMB-connector on the front-end PCB, (ie not used).
pin7: Remove C50 from the original board and connect pin7 to 13.6VDC.