Replacement part for a Thunderbolt display

Hi!
A Thunderbolt display doesn't turn on. Investigation led to a faulty chip marked as:
ATMLH122
04B
IF5966B
The problem is, we can't find a replacement chip online. Maybe it is an Apple ordered chip. Replacing the whole board is a bit pricey, as the display is not covered by warranty anymore.
Any suggestions?

The standard practice today is to change an entire board ilo just the bad part (I guess just easier). Your best bet is to find a damaged TBD like on Ebay and use for parts.

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This question was solved.
View Solution.

Hi,
You may need more than just the screen. Please use the following manual to find out the right part(s) for your machine:
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Another update for you all....
While watching a movie on the TV yesterday the Mac Pro and Thunderbolt display went to sleep and once again when I tried to wake them the screen was totally black. I called Apple again and the only thing they could suggest was to take the screen to an authorised service provider so that they can run tests.
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Other solutions which people have used are plugging the power plug for the Thunderbolt display into a totally different power source (if that's possible in your set up). Thankfully for me it is.
Another suggesttion which has worked for others is to disable the Power Nap feature within the Energy Saver perference pane.
I did both of those and for the first time this morning the Thunderbolt Display woke up when I woke the Mac Pro!
However I did get an error message that he system had recovered...
Date/Time:       2014-06-15 01:57:42 +0100
OS Version:      10.9.3 (Build 13D65)
Architecture:    x86_64
Report Version: 18
Event:           Sleep Wake Failure
Steps:           0
Hardware model: MacPro6,1
Active cpus:     8
================================================================
Code: 0x4000c27006700
Now I know for sure nobody tried to wake the computer at just before 2 in the morning!
The log points to wake for Network Access being the culprit here
Jun 14 23:52:02 Johns-Mac-Pro kernel[0]: Wake reason: RTC (Alarm)
Jun 15 01:51:55 Johns-Mac-Pro kernel[0]: RTC: Maintenance 2014/6/15 00:51:55, sleep 2014/6/14 22:52:02
Doing more digging in the internet I found this article
http://sysadminblogger.wordpress.com/2013/12/02/os-x-mavericks-wake-for-network- access-with-no-random-wake-ups/
So I am now thinking that not only has power nap been causing issues with the display but wake for network access is also not really working as Apple intend it to.
As I am a home user there really is no need for me to need wake for network access enabled anyway so I am also going to disable that. Hopefully this will mean that I have no more random phantom wake ups which I think may have been the cause of this issue all along.

Replacement part for a Thunderbolt display

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