Page 1 of 1

MacBook Pro...LED Backlight Problem

Flag Reply by Bourin Sep 18 @ 1:33 PM

Thanks in advance for any suggestions.

I recently cracked my orignal 15" MacBook Pro LED screen

LP154WP2 (TL)(A1). I ordered a new screen LP154WP2 (TL)(A3) and was told that it is compatible with my original screen.

After putting the new screen in, I can see the screen as if it is on dim setting, but the screen will not brighten up when I increase the brightness. I can see everything on the screen with a light in the back, but the screen stay dim 24/7.

Does anyone know what issue this could be?

-I read some problems and the inverter cable only fits in one direction, so it is'nt inserted wrong. On the previous screen the backlight was still working, so I don't believe any of the cables are broken, unless it happened while replacing it.

Flag Reply reply by customerservice Nov 3 @ 8:11 PM

Possibly a logic board problem. It could have been damaged or have a hairline crack somewhere when the screen was damaged or even during the teardown procedure to install the new screen.

Flag Reply reply by lemerise Nov 4 @ 9:56 AM

Do a double check at the inverter cable connector on the motherboard. Check if the connector is well seated in the socket. Another possibility could be a bad connection of the inverter cable to the inverter board in the screen assy.

                                      Page 1 of 1

Reply to: MacBook Pro...LED Backlight Problem