Macbook Air - Chime & Backlight works, No display...

[Sykulski]

You checked the board but you are not mentioning if you checked with another display. If not then start there. Don’t diagnose the board before you are 100% sure it is a board issue. It could also just be a bad lcd-cable. If you don’t have a known good display at hand then start with disconnecting internal display and see if an external one shows an image.

 

[PCS ProShop]

First thing I did.

 

[Sykulski]

Don’t use comments as replies as they can easily be missed. First thing you did was it trying a known good display or was it to test with external screen while internal display disconnected ?

 

[Gmorb]

No Title

 

[2informaticos]

Is your board model 820-3115?
Do you get pure white or black display?
Check for knocked off components in the LCD connector area, both sides of the board.

 

[dukefawks]

Need to know if you have white screen or black with backlight on.

Remove the SSD and do a PRAM reset and see if you get a question mark.