I have a Hitachi 53SDX01B (DP06) that has convergence issues. I replaced both STK392-110 IC's with STK394-160's. I also replaced rk50, rk58. Reinstalled board. Convergence issue was still there and now the top and bottom of the picture curved towards the center. Removed board, found rk62 was burnt (I don't think it was before but not 100% sure), replaced it, reinstalled board. Same 2 problems still there. I've checked for voltage on pins 4 and 5 (actually checked it at jumpers on board) and everything is good. I'm starting to think I've got bad chips as I got them from Ebay (seller claims to be Sanyo dealer and has 100% positive feedback). Does anybody have an idea of what to do next? Is there a way to check the IC's? I'm stumped here, I need help. Thanks.