Vliegenier04
New member
Goodday,
I am having issues troubleshooting a MBP A2338 M2 Macbook for a customer. I am fairly new to diagnosing Mac's and soldering, so don't blame me if I make a stupid question
The main issue is regarding the Lid angle sensor. UR300 (also known as UR200 in A2338 M1) was entirely corroded and blown, as well as the nearby area with JR200 and RR300/CR300. I have no working replacement for UR300 which is defined as SLG4AP44437V in the schematic's. Thus the screen does not power on properly, keyboard/trackpad/touchbar not functioning either.
Now I have measured with all the pins exposed (UR300/JR200/RR300/CR300 removed) and it seems the signal is okay based on the information provided in https://boards.rossmanngroup.com/threads/macbook-a2338-water-damage.64251/ I get 1.8v and 1.2v on the pins required.
Now my question is how to (temporarily fix, until I have a board I can pull UR300 off) the sensor area so it'd stay awake at all times so I can diagnose and troubleshoot further. I assume, since it's an OR gate (for UR200 A2338 at least) there should be a way to bridge it with jumper wires.
Any idea's how to do this? Thanks in advance,
~ Vlie
I am having issues troubleshooting a MBP A2338 M2 Macbook for a customer. I am fairly new to diagnosing Mac's and soldering, so don't blame me if I make a stupid question
The main issue is regarding the Lid angle sensor. UR300 (also known as UR200 in A2338 M1) was entirely corroded and blown, as well as the nearby area with JR200 and RR300/CR300. I have no working replacement for UR300 which is defined as SLG4AP44437V in the schematic's. Thus the screen does not power on properly, keyboard/trackpad/touchbar not functioning either.
Now I have measured with all the pins exposed (UR300/JR200/RR300/CR300 removed) and it seems the signal is okay based on the information provided in https://boards.rossmanngroup.com/threads/macbook-a2338-water-damage.64251/ I get 1.8v and 1.2v on the pins required.
Now my question is how to (temporarily fix, until I have a board I can pull UR300 off) the sensor area so it'd stay awake at all times so I can diagnose and troubleshoot further. I assume, since it's an OR gate (for UR200 A2338 at least) there should be a way to bridge it with jumper wires.
Any idea's how to do this? Thanks in advance,
~ Vlie