MacBook Air 13” (2014) – Water Damage, will not power on

MacBook Air 13” (2014) – Water Damage, will not power on

Hi everyone. I have a water damaged (tea) MacBook Air that was dead as a doorknob. No light on the MagSafe, no fan or anything. A visual inspection of the logic board (820-3437-B) showed no classical water damage (corrosion) but the backlight diode (D7701) was literally blown off the board (replaced). The LVDS connector however is in excellent condition. I also found a burnt pin on the I/O Flex (821-1722-A), which I repaired.

Asked by: Guest | Views: 184

Total answers/comments: 4

Comments display order:

bert [Entry]

"Forza Vale

@triomacrepair

Rep: 3.1k
triomacrepair.com

17

12

9"

bert [Entry]

"I would disconnect everything, plug in fan, MagSafe DC in, genuine 60W adapter, and see if fan spins.

Then start adding elements until something comes up.

Also G3H 8.6V tested present on both sides of the fuse?

Also, the blown diode, did you test both pads for resistance to ground? And for continuity to the next component in line?"

bert [Entry]

Try for a spontaneous boot. Dis connect the battery and magsafe, Then hook the battery back up to the logic board. As soon as you connect the mag-Safe, you should get a boot.

bert [Entry]

Those are where the power on pads are.