No backlight still after replacing logic board
My thunderbolt display has been flakey for the past few years with the backlight intermittently deciding to not come on.
I have previously been able to resolve this issue with numerous bouts of unplugging it and plugging it back in but it finally decided to not come back to life this week when I need it most for telework.
Based on advice in prior posts from @danj , I replaced the logic board to no avail. Upon teardown, I did notice the left bottom backlight connector is loose so wondering if replacing the LCD panel would be the next step? Would the whole screen not work if just one backlight connector is bad?
Of note, the display works (no backlight) and all accessories work fine.
Thanks in advance for any replies!
4条评论
I guess I stepped in it here! Can you post a few pics of the backlight connector which is loose so I can see it.
It maybe you got a bad part or the power supply has issues. Do you have a DVM to check voltages?
由 Dan 完成的
Thanks @danj ! I uploaded a video of the loose connection in the original post. I have seen in other posts and videos local dimming when one of the connections is bad but unsure if it would kill the entire backlight? I do have a run of the mill cheap voltmeter if needed.
由 Brandon 完成的
Did you mangle the case? It looks like someone got inside at some point.
由 Dan 完成的
I just pulled back the foil tape to check if the connections were loose. I do not think the display has ever been pulled apart.
由 Brandon 完成的