crwdns2933423:0crwdne2933423:0

Repair and disassembly guides for the Apple AirPort Extreme Model A1143.

crwdns2934591:011crwdne2934591:0 crwdns2934593:0crwdne2934593:0

Identify burned IC U1600 help plz!

Hi All!

Need help with Identify of burned IC U1600 on Apple Airport Extreme A1143 MB053LL/A main board 820-2214-A

Help please!

Just need a Hi resolution picture of U1600 area on main board to identify IC.

Thank you in advance!

Here is pictures to understand what I'm looking for -

Block Image

Block Image

Block Image

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 1
crwdns2934285:0crwdne2934285:0

crwdns2933313:01crwdne2933313:0

This IC U1600 is a LOWPIN COUNT SYNCHRONOUS BUCK CONTROLLER TPS40190 by Texas Instruments,here is link to PDF datasheet

Also here is a picture as it must look if IC not burned as yours -

Block Image

Block Image

crwdns2934105:0crwdne2934105:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0

crwdns2934229:0crwdne2934229:0

Dennis crwdns2934231:0crwdne2934231:0
crwdns2936625:0crwdne2936625:0:

crwdns2936751:024crwdne2936751:0 0

crwdns2936753:07crwdne2936753:0 0

crwdns2936753:030crwdne2936753:0 0

crwdns2942667:0crwdne2942667:0 256