The backlight LED’s over time burn the reflector frame they are held in (yellowing it). While not easy you can get to your backlight assembly and fix the issue placing a new foil reflector in.
=== Update (07/11/2019) ===
Follow this guide [guide|6270]
If you’re nervous on taking the display apart here’s the needed part [https://www.thebookyard.com/product.php?products_id=7671|iMac 21.5" LCD Display (11) Used - Apple P/N 661-5934, Display P/N LM215WF3 (SD)(C2)] This is the newer version.
As far as taking the display apart the best I can offer is this drawing
[image|1803117]
There are no available parts and if you don’t damage anything you’ll be OK. Once you get the frame out you can mount a strip of Aluminum foil tape (metal flue/duct tape) replacing the cheap paper foil LG used and clean the LED’s with 85% Isopropyl alcohol.
=== Update (07/12/2019) ===
@oldturkey03 - FYI: This is the newer version of the display [document|5744|LG - LM215WF3 (SD)(C2)] it has the better backlight design.
=== Update (07/21/2019) ===
Here’s another view of the backlight LEDs
[image|1809176]
[image|2279186]
-
On this series the white plastic has become yellowed.
+
On this series the white plastic has become yellowed and you can see the foil surface burnt.
The backlight LED’s over time burn the reflector frame they are held in (yellowing it). While not easy you can get to your backlight assembly and fix the issue placing a new foil reflector in.
=== Update (07/11/2019) ===
Follow this guide [guide|6270]
If you’re nervous on taking the display apart here’s the needed part [https://www.thebookyard.com/product.php?products_id=7671|iMac 21.5" LCD Display (11) Used - Apple P/N 661-5934, Display P/N LM215WF3 (SD)(C2)] This is the newer version.
As far as taking the display apart the best I can offer is this drawing
[image|1803117]
There are no available parts and if you don’t damage anything you’ll be OK. Once you get the frame out you can mount a strip of Aluminum foil tape (metal flue/duct tape) replacing the cheap paper foil LG used and clean the LED’s with 85% Isopropyl alcohol.
=== Update (07/12/2019) ===
@oldturkey03 - FYI: This is the newer version of the display [document|5744|LG - LM215WF3 (SD)(C2)] it has the better backlight design.
=== Update (07/21/2019) ===
Here’s another view of the backlight LEDs
[image|1809176]
+
[image|2279186]
+
On this series the white plastic has become yellowed.
The backlight LED’s over time burn the reflector frame they are held in (yellowing it). While not easy you can get to your backlight assembly and fix the issue placing a new foil reflector in.
=== Update (07/11/2019) ===
Follow this guide [guide|6270]
If you’re nervous on taking the display apart here’s the needed part [https://www.thebookyard.com/product.php?products_id=7671|iMac 21.5" LCD Display (11) Used - Apple P/N 661-5934, Display P/N LM215WF3 (SD)(C2)] This is the newer version.
As far as taking the display apart the best I can offer is this drawing
[image|1803117]
There are no available parts and if you don’t damage anything you’ll be OK. Once you get the frame out you can mount a strip of Aluminum foil tape (metal flue/duct tape) replacing the cheap paper foil LG used and clean the LED’s with 85% Isopropyl alcohol.
=== Update (07/12/2019) ===
@oldturkey03 - FYI: This is the newer version of the display [document|5744|LG - LM215WF3 (SD)(C2)] it has the better backlight design.
+
+
=== Update (07/21/2019) ===
+
Here’s another view of the backlight LEDs
+
+
[image|1809176]
+
+
On this series the white plastic has become yellowed.
The backlight LED’s over time burn the reflector frame they are held in (yellowing it). While not easy you can get to your backlight assembly and fix the issue placing a new foil reflector in.
=== Update (07/11/2019) ===
Follow this guide [guide|6270]
If you’re nervous on taking the display apart here’s the needed part [https://www.thebookyard.com/product.php?products_id=7671|iMac 21.5" LCD Display (11) Used - Apple P/N 661-5934, Display P/N LM215WF3 (SD)(C2)] This is the newer version.
As far as taking the display apart the best I can offer is this drawing
[image|1803117]
There are no available parts and if you don’t damage anything you’ll be OK. Once you get the frame out you can mount a strip of Aluminum foil tape (metal flue/duct tape) replacing the cheap paper foil LG used and clean the LED’s with 85% Isopropyl alcohol.
=== Update (07/12/2019) ===
-
@oldturkey03 - FYI: This is the newer version of the display [document|5744|LG - LM215WF3 (SD)(C2)]
+
@oldturkey03 - FYI: This is the newer version of the display [document|5744|LG - LM215WF3 (SD)(C2)] it has the better backlight design.
The backlight LED’s over time burn the reflector frame they are held in (yellowing it). While not easy you can get to your backlight assembly and fix the issue placing a new foil reflector in.
=== Update (07/11/2019) ===
Follow this guide [guide|6270]
If you’re nervous on taking the display apart here’s the needed part [https://www.thebookyard.com/product.php?products_id=7671|iMac 21.5" LCD Display (11) Used - Apple P/N 661-5934, Display P/N LM215WF3 (SD)(C2)] This is the newer version.
As far as taking the display apart the best I can offer is this drawing
[image|1803117]
There are no available parts and if you don’t damage anything you’ll be OK. Once you get the frame out you can mount a strip of Aluminum foil tape (metal flue/duct tape) replacing the cheap paper foil LG used and clean the LED’s with 85% Isopropyl alcohol.
=== Update (07/12/2019) ===
-
@oldturkey03 - FYI: This is the newer version of the display [document|5744]
+
@oldturkey03 - FYI: This is the newer version of the display [document|5744|LG - LM215WF3 (SD)(C2)]
The backlight LED’s over time burn the reflector frame they are held in (yellowing it). While not easy you can get to your backlight assembly and fix the issue placing a new foil reflector in.
=== Update (07/11/2019) ===
Follow this guide [guide|6270]
If you’re nervous on taking the display apart here’s the needed part [https://www.thebookyard.com/product.php?products_id=7671|iMac 21.5" LCD Display (11) Used - Apple P/N 661-5934, Display P/N LM215WF3 (SD)(C2)] This is the newer version.
As far as taking the display apart the best I can offer is this drawing
[image|1803117]
There are no available parts and if you don’t damage anything you’ll be OK. Once you get the frame out you can mount a strip of Aluminum foil tape (metal flue/duct tape) replacing the cheap paper foil LG used and clean the LED’s with 85% Isopropyl alcohol.
+
+
=== Update (07/12/2019) ===
+
@oldturkey03 - FYI: This is the newer version of the display [document|5744]
The backlight LED’s over time burn the reflector frame they are held in (yellowing it). While not easy you can get to your backlight assembly and fix the issue placing a new foil reflector in.
+
+
=== Update (07/11/2019) ===
+
Follow this guide [guide|6270]
+
+
If you’re nervous on taking the display apart here’s the needed part [https://www.thebookyard.com/product.php?products_id=7671|iMac 21.5" LCD Display (11) Used - Apple P/N 661-5934, Display P/N LM215WF3 (SD)(C2)] This is the newer version.
+
+
As far as taking the display apart the best I can offer is this drawing
+
+
[image|1803117]
+
+
There are no available parts and if you don’t damage anything you’ll be OK. Once you get the frame out you can mount a strip of Aluminum foil tape (metal flue/duct tape) replacing the cheap paper foil LG used and clean the LED’s with 85% Isopropyl alcohol.
They do! But not in the way you think!
The backlight LED’s over time burn the reflector frame they are held in (yellowing it). While not easy you can get to your backlight assembly and fix the issue placing a new foil reflector in.