Hi All update on this set,good news got it sorted Got replacment main board fitted it same fault.Power supply board was next for attention ,took it out turned it upside down to check joints hew presto it starts working put it back and no go.turns out transformer t 801 had loose ferrife core which ment it would only work when panel was upside down ,spot of super glue on trafo core to keep it together ,set cured
