crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

You're looking in the right place.  They may be covered up by a small piece of black tape that comes up from the bottom edge of the logic board.  See if you can locate the tape and remove it.

crwdns2915684:0crwdne2915684:0:

open