has the console been opened? it could be the top casing is not on right it happened to me. i changed a bluray drive.. i switched it on it played ok then turned it off went back hour later switched on then yello/blue/ red blinking constant... this only happened as i bought second hand one from ebay which had been opened and drive was dead and i swapped it out.
also i looked close at the eject and on/off touch pad contacts underneath to see if they was lifted or lowered, the on/off was i touch lower (a mill) so i raised it a touch but it took 2/3 goes to get it right... at least have a check can't hurt none... hope you sort it.
Edit: my bad... it did not keep blinking but turned off like back into standby so same as your light order above, its like it don't get to the boot stage just shut off. i had a look at reflowing and thought argggghhhhh so i just took case off and replugged drive (as i bought new one) and put case on still went to standby...
now i was getting pissed so did it again and took time with putting case on and ... happy dayz so i think it was how the case was seated. wouldn't hurt to double check as there are fine catches on top of case and need to be seated correct or no joy... think thats the best i can help you... good luck
oh and clean the contacts i used a dry bit of toilet roll and just wiped em, everything can get in them especially if they been opened and are quite old like a release 60gb.