Chosen Solution
Hi there! My Macbook Pro 15” Mid 2015 (2.2 ghz) display backlight died due to water damage. I have seen various tutorials and found that either very specific parts need to be replaced or the entire logic board. If I have to shell out extra $’s then I have seen logic board options for up-to 2.8ghz with dual graphic cards. Can I purchase and use one of those instead? PS: I can confirm that it is only the backlight as I can use a flash light on the Apple logo at the back of the screen and see some of the screen’s content. I am currently using my machine with my iMac on Target Display mode. Update: Spent a couple of hours with my technician and it appears the problem lies with the display adapter/jack. The IC, fuse and capacitors are all returning proper voltage but the adapter is not. I have attached the pictures as well. Can anyone help me find the exact part please? Thanks in advance!
@zohaibam It can of course be repaired, there’s a fair number of people around the globe taking care of component level repairs on logic boards. Backlight circuit isn’t particularly challenging, as one knows right from the beginning where to start from, but being a high voltage circuit, damage may be quite extended and especially when liquids come to picture it happens quite often that besides components replacement one has to rebuild the circuit itself..that requires good skills and experience, thus try to choose a reputable tech with experience on Macs. Although I believe @danj advice to replace the fuse is a bit of a overoptimistic solution in case of liquid damage, I fully agree with his other suggestions below.
OK for now lets stop using your MacBook Pro as you could make recovery harder and more costly! Disconnect the battery following this guide MacBook Pro 15" Retina Display Mid 2015 Battery Replacement Stop at Step 5. Now you’ll need to get some materials pulled together so you can clean your logic board. Get a bottle of distilled water and a bottle of 85% or better isopropyl alcohol. You’ll also need cotton swabs, a soft toothbrush and a small soft paint brush. Follow this guide taking the logic board out fully MacBook Pro 15" Retina Display Mid 2015 Logic Board Replacement. Carefully inspect the logic board looking for corrosion and stains on the backside of the logic board as well as the black insulator. Once you get the system cleaned you should be able to replace the fuse Fuse: F77003 AMP-32V
