Hi guys,The ysus p.c.b. failed on this set,so I ordered panel kit from c.h.s.tried fitting all three panels in kit but end up with no picture but sound.My control p.c.b. is larger than the new one in kit & is marked6871qch053c(not on the list)if I leave the new ysus/zsus p.c.b's in & the old control p.c.b. the set then gives a picture but very noisey in back ground no amount of setting up seems to alter this.any body got any ideas before I go mad & do something I might regret later to this fine example of modern tech.