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I have a MacBook Air 2020 and the logicboard seems clean. I used a thermal camera and I can see it's getting hot in one area. Please check the attached photos and let me know your thoughts.

I have a 2017 iMac which is not turning on at all. the 4 LED on the motherboard is not turning on at all. I checked it with another power supply but no light or any sign on the logic board. I can see 12.5v or 3.3v on some capacitors so I assume the power supply is fine. Any idea where I should...

resoldered the affected components and replaced the C7126 and it's working fine now

pins 17/18 20 ohm 27/28 of U7100 19.2 ohm

thanks for the reply. changed the title. I checked PPBUS_G3H and I'm getting 8.6V 3V42_G3H I,m getting 3.4V . Please check the image below. there are some visible signs but I'm getting 3.4V

I have a MacBook Air with water damage. There was some corrosion on the logicboard. I cleaned the board with ultrasonic and it's turning on and working when the charger is connected. I test it with a new battery as well but as soon as I disconnect the charger it turns off. when it turns on the...

I tried to restore it, but it's randomly restarting and the heatsink is getting really hot. the A goes to 0 and the fan spins full speed for a second and then turns back on

checked the board under the thermal camera and U7210 is getting hot as soon as I power on the laptop.

still restarting after reviving in DFU mode.

Also it's detecting it in DFU mode and I'm just reviving it.

Thanks, I cleaned the board one more time and now I have some signals. laptop turns on and A goes up to 2.8A but it restarts halfway through. I can see the Apple logo and then the loading bar then restarts.

Also, have 5V on PP5V_G3S except for the pin I marked on attached pic

Thanks for the reply. Can't see any corrosion. Can't enter DFU mode. getting 3.2 and 1.8V on R7610 & R7613 = 1.8V - R7611 = 3.299V PP1V1_SLPS2R = 1.04V PP0V8_SLPS2R = 0.8V PP3V3_AWAKE = 3.3V PP1V2_AWAKE =1.2V PMU_PVDDMAIN_EN = 3.3V P3V3MAIN_PGOOD= 3.2V PP3V_G3H_RTC = 3.008V...

It came as water damage but I can't see any sign of damage on the logicboard. When connecting a charger it takes 5V but no A. I took the board out and connect the charger then taking 20.66V, still no A C3021 = 20.5V C3020 = 20.5V F3000 = 20.5V C9073 = 12.6 PPBUS_G3H = 12.6V PP3v3_G3H = 3.33V...