Apple MBP A1398 EMC 2881 No backlit, PP3_G3H drops to 10.8V after start, 0V on LVDS pin 1

[jaroslav.psenicka]

Hi all,

I have a MBP A1398 EMC 2881 here, it chimes, boots and shows picture on external screen
there is an apple logo on the display, no backlit

I measured the PP3_G3H on the backlit fuse - it's 12.6V when not powered and it drops to 10.8V after startup.
Is this OK?

Also measured the LVDS connector pin 1, there is 0V, could that be the backlit driver chip?
Also checked all 4 "backlit" capacitors, all OK, not shorted.

Thank you very much,
-jp