I have very popular problem on WPC games - Error of switch F8 on my CFTBL. I checked this forum and same problem have many others on Draculas, World Cups, etc. But nobody have a proper solution. Every advice is just like: try to clean optos, try to switch opto boards, try new fuse on Fliptronic board,...
Switch F8 is "upper left flipper", but on most games there is not any u.l. flipper so F8 means just left flipper. In switch test on these machines you never see "F8" shown. F8 is probably shown like switch F4 (left flipper opto board)
Its very often problem so dont tell me that nobody there dont know clean solution....?
Thanks a lot