My 507w was put in the original cardboard box after the 3 blinking lights problem, I couldn't get it act in a decent way after that darn nightmare of the "3 blinking lights".
After a month and half of waiting, Samsung sent me a new set that has a tag with a production date of September 2002, it arrived just a week ago. With it, i got a color-cover manual printed in nice paper, the first set came with what looked like a photocopied version of the manual.
Also, in the lower left corner of the border of the tantous screen there is a "DCDi by faroudja" logo. The model of this set is now actually HLM507wx, not just "w".
The one thing I immediatly noticed on power up was the PQ right out of the box was superb, a sharp contrast with what the July-2002 issued 507w was out of the box. The PQ is so good in fact, that I haven't bother to do any tuning yet.
Now, dear Lord, please don't let me have another "3 blinking lights" nightmare anytime soon.