AlexZander

For those who still have the same problem with this, here what fixes mine after I tried to replace and blown few times one of the IRF740. I replaced C2 and C3 then D11 with NTE6412 from Frys electronics. I think the main cause of the problem was the D11. It just hard to tell because you can't test it with ohmmeter. Hopefully this is common to others as well and be able to help.