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当前版本: Timothy ,

标题:

What to Check for on 27" Thunderbolt Display with no Backlight

文本:

Greetings folk, here is another one for us today:
-I got this 27” Thunderbolt Display for less than $50 with no backlight. The LCD is up and running with the flashlight test but here is the interesting part that makes this one unique: I don’t get any backlight upon connecting the thunderbolt cable, not even a flash.
+I got this 27” Thunderbolt Display for less than $50 with no backlight.
+
+The LCD is up and running with the flashlight test but here is the interesting part that makes this one unique: I don’t get any backlight upon connecting the thunderbolt cable, not even a flash.
Is it possible that this is still the same issue that is fixed by bridging some 3.3v connection on the LED driver IC?
I can use the speakers, ethernet, and webcam, so it’s not an issue with the cable and there is no visible damage to the logic board.
[image|1517737]
I am looking for a quick list of things to check, thanks for any and all comments!
Timothy

设备:

Apple Thunderbolt Display

状态:

open

原帖由: Timothy ,

标题:

What to Check for on 27" Thunderbolt Display with no Backlight

文本:

Greetings folk, here is another one for us today:

I got this 27” Thunderbolt Display for less than $50 with no backlight. The LCD is up and running with the flashlight test but here is the interesting part that makes this one unique: I don’t get any backlight upon connecting the thunderbolt cable, not even a flash.

Is it possible that this is still the same issue that is fixed by bridging some 3.3v connection on the LED driver IC?

I can use the speakers, ethernet, and webcam, so it’s not an issue with the cable and there is no visible  damage to the logic board.

[image|1517737]

I am looking for a quick list of things to check, thanks for any and all comments!

Timothy

设备:

Apple Thunderbolt Display

状态:

open