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27" display with 2560 x 1440 pixels resolution Thunderbolt & MagSafe cable attachments

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Can some one post the Apple flowchart for the No Power situation here?

Can some one post a link where I can read that flowchart on how to isolate issues if no images and no power on Apple’s thunderbolt display?

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@oldturkey03 - Thanks, just send you a message over email, let me know if you receive it.

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@lovecd I do not have a link but I do have the right flowsheet now. Previously, I believe I erroneously posted the one for the Cinema Display on your other question. This flowsheet is for the Thunderbolt display “No Power situation”. Subsequently check the test points on the power supply.

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Let us know what you find

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Thanks. By the way, I have read through this chart, looks like it will direct to check and replace the all in one cable after verifying the 5V voltage presents on display's USB ports, so, how did it verify the logic board is good? Did I miss any steps here?

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@lovecd Yes you did. It says to check, "if you have power to the USB but NOT the Magsafe connection", replace the cable. If you have both you are ok :-) The wording is a bit tricky. One of the things to check are the voltages on the last image and see if you got those.

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Tom will be eternally grateful.
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