A3113 Air with lid angle sensor issue

sekidata

Member
A3113 MacBook Air, came in with a bad screen, damage to the interposer flex cable connector, and a visibly burnt LT203 (PP3V8_AON).
After replacement of the display, interposer cable, and LT203 the machine was functional but I noticed that closing the lid did not put the machine to sleep. I replaced the lid angle sensor with a brand-new one and used Tahoe's Repair Assistant to program/calibrate it. That appeared to be successful but closing the lid still does not sleep the machine.

What am I missing?
 

sekidata

Member
The relevant signal from the LAS, I believe, is ND_1V8 (input to UR300). It is 1.8V with lid open and 0V with lid closed.
 

sekidata

Member
Hold on, is there one or are there two sensors for lid position? I see that this model has an AMR_1V8 line and iI think it's connected to an older-style magnetic Hall effect sensor. A2681 (2022) did away with this sensor in favor of LAS, but in this model A3113 (2024) both sensors are present. Correct?
 
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