I had the exact same symptoms as ***[link|https://www.ifixit.com/User/2686202/James+Walker|@scottcountyhero]*** including the same voltages on the 12 power pins (3.5v standby reading but instead of getting 13.2v for the middle pins I get 6.5 to 7.0v). My issue was the LED strips. The buzzing coming from the power board has not gone away and persists in standby mode. I'd suggest the following diagnostic from anyone coming to this forum in the future:
# Pull wire from 12 pin connector per ***[link|https://www.ifixit.com/User/3577614/Chris+Contreras|@chriscontr53256]*** post above, you can get individual pin sleeves to release from the connectors so you don't need to cut any wires. (this didn't work for me but it's cheap and easy).
# Order a set of LED's and replace test them, this requires a lot of disassembly but is by far the leading cause of these symptoms (there are several youtube videos that can walk you through this). I chose to buy from Amazon for $35. This was $5 more than what I could find on ebay but it included free returns so I didn't need to worry about having a spare set of lights to deal with if this wasn't the issue.
# Next look to replacing the Power Supply, I found inexpensive parts here: [link|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm]
Note: when I removed the screen with suction cups they left a white circle in the image on my screen when I turned it back on. I was extremely disappointed. I walked away from the project but later did some online research and found that this is common when handling screens with suction cups, when I went to turn the screen back on an hour later the screen discoloration was gone. It appears that the liquid in the screen gets pulled towards the surface but that it slowly returns to normal after the suction is removed.
I had the exact same symptoms as ***[link|https://www.ifixit.com/User/2686202/James+Walker|@scottcountyhero]*** including the same voltages on the 12 power pins (3.5v standby reading but instead of getting 13.2v for the middle pins I get 6.5 to 7.0v). My issue was the LED strips. The buzzing coming from the power board has not gone away and persists in standby mode. I'd suggest the following diagnostic from anyone coming to this forum in the future:
# Pull wire from 12 pin connector per ***[link|https://www.ifixit.com/User/3577614/Chris+Contreras|@chriscontr53256]*** post above, you can get individual pin sleeves to release from the connectors so you don't need to cut any wires. (this didn't work for me but it's cheap and easy).
# Order a set of LED's and replace test them, this requires a lot of disassembly but is by far the leading cause of these symptoms (there are several youtube videos that can walk you through this). I chose to buy from Amazon for $35. This was $5 more than what I could find on ebay but it included free returns so I didn't need to worry about having a spare set of lights to deal with if this wasn't the issue.
# Next look to replacing the Power Supply, I found inexpensive parts here: [link|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm]
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Note: when I removed the screen with suction cups they left a white circle in the image on my screen when I turned it back on. I was extremely disappointed. I walked away from the project but later did some online research and found that this is common when handling screens with suction cups, when I went to turn the screen back on an hour later the screen discoloration was gone. It appears that the liquid in the screen gets pulled towards the surface but that it slowly returns to normal after the suction is removed.
I had the exact same symptoms as ***[link|https://www.ifixit.com/User/2686202/James+Walker|@scottcountyhero|new_window=true]*** including the same voltages on the 12 power pins (3.5v standby reading but instead of getting 13.2v for the middle pins I get 6.5 to 7.0v). My issue was the LED strips. The buzzing coming from the power board has not gone away and persists in standby mode. I'd suggest the following diagnostic from anyone coming to this forum in the future:
+
I had the exact same symptoms as ***[link|https://www.ifixit.com/User/2686202/James+Walker|@scottcountyhero]*** including the same voltages on the 12 power pins (3.5v standby reading but instead of getting 13.2v for the middle pins I get 6.5 to 7.0v). My issue was the LED strips. The buzzing coming from the power board has not gone away and persists in standby mode. I'd suggest the following diagnostic from anyone coming to this forum in the future:
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# Pull wire from 12 pin connector per ***[link|https://www.ifixit.com/User/3577614/Chris+Contreras|@chriscontr53256|new_window=true]*** post above, you can get individual pin sleeves to release from the connectors so you don't need to cut any wires. (this didn't work for me but it's cheap and easy).
+
# Pull wire from 12 pin connector per ***[link|https://www.ifixit.com/User/3577614/Chris+Contreras|@chriscontr53256]*** post above, you can get individual pin sleeves to release from the connectors so you don't need to cut any wires. (this didn't work for me but it's cheap and easy).
# Order a set of LED's and replace test them, this requires a lot of disassembly but is by far the leading cause of these symptoms (there are several youtube videos that can walk you through this). I chose to buy from Amazon for $35. This was $5 more than what I could find on ebay but it included free returns so I didn't need to worry about having a spare set of lights to deal with if this wasn't the issue.
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# Next look to replacing the Power Supply, I found inexpensive parts here: [link|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm|new_window=true]
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-
Note: when I removed the screen with suction cups they left a white circle in the image on my screen when I turned back on. I was extremely disappointed. I walked away from the project but later did some online research and found that this is common when handling screens with suction cups, when I went to turn the screen back on an hour later the screen discoloration was gone. It appears that the liquid in the screen gets pulled towards the surface but that it slowly returns to normal after the suction is removed.
+
# Next look to replacing the Power Supply, I found inexpensive parts here: [link|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm]
+
Note: when I removed the screen with suction cups they left a white circle in the image on my screen when I turned it back on. I was extremely disappointed. I walked away from the project but later did some online research and found that this is common when handling screens with suction cups, when I went to turn the screen back on an hour later the screen discoloration was gone. It appears that the liquid in the screen gets pulled towards the surface but that it slowly returns to normal after the suction is removed.
I had the exact same symptoms as ***[link|https://www.ifixit.com/User/2686202/James+Walker|@scottcountyhero|new_window=true]*** including the same voltages on the 12 power pins (3.5v standby reading but instead of getting 13.2v for the middle pins I get 6.5 to 7.0v). My issue was the LED strips. The buzzing coming from the power board has not gone away and persists in standby mode. I'd suggest the following diagnostic from anyone coming to this forum in the future:
# Pull wire from 12 pin connector per ***[link|https://www.ifixit.com/User/3577614/Chris+Contreras|@chriscontr53256|new_window=true]*** post above, you can get individual pin sleeves to release from the connectors so you don't need to cut any wires. (this didn't work for me but it's cheap and easy).
# Order a set of LED's and replace test them, this requires a lot of disassembly but is by far the leading cause of these symptoms (there are several youtube videos that can walk you through this). I chose to buy from Amazon for $35. This was $5 more than what I could find on ebay but it included free returns so I didn't need to worry about having a spare set of lights to deal with if this wasn't the issue.
# Next look to replacing the Power Supply, I found inexpensive parts here: [link|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm|https://www.tvpartstoday.com/COV33697901-LG-Power-Supply-168P-L5L01F-W0-5835-p/cov33697901.htm|new_window=true]
Note: when I removed the screen with suction cups they left a white circle in the image on my screen when I turned back on. I was extremely disappointed. I walked away from the project but later did some online research and found that this is common when handling screens with suction cups, when I went to turn the screen back on an hour later the screen discoloration was gone. It appears that the liquid in the screen gets pulled towards the surface but that it slowly returns to normal after the suction is removed.