Thanks for your replies.
OP's Omega2 may have several issues, however a fundamental one needs to be addressed first:
it needs a good power supply.
His first attempt (LM1117-3.3 linear regulator) needs a heatsink. It also needs a 10uF input capacitor and 100uF output capacitor.
You gave good advices, but in omega documantation, it used only LD1117 regulator. LD1117 and LM1117 are almost same regulators. But I thought like you and added capacitors reguator circuits. But the result was same. So I don' t think there is a regulator or power problem.
If there is a product error why am I repair it? I can send omega back(Because 9$ makes very much in Turkey .. ). But I have to be sure before making this .. :)
Thanks a lot...