Hi everybody, i'm new to this group, and it happens that i have the exact same issue with +8,5 and -6,5 for a few days now.I would follow Heath Finnie procedure by replacing IC722, and both 1000uf caps.I would also check TR09 and TR14 as you suggested Christof, but where do you find those ones? i dont see them on the SVU circuit board and wiring? (http://therogoffs.com/cs80/manuals/CS80_Service_Manual/60%20-%20SVU%20Circuit%20Board%20&%20Wiring.jpg)
Thank you!