![]() ![]() I have been running the TV for a few days now.for hours and hours per day (basically on from morning to night since we are all home this week and wife has been playing PS4 anytime not watching the TV pretty much.and no issues at all with that wire disconnnected. Actually, on the LED Driver board side that wire is labeled "PS On" (or something like that) which to me means Power Supply On.and that is exactly how it behaves. I believe what is a bit confusing to some is that the pin labeled STB is actually NOT standby power, but the signal coming back to turn on the power supply to full power. ![]() ![]() The FAIL pin then gets a signal of 6v from the LED Driver Board and the power supply shuts back down to the initial power outputs (standby mode). The power supply then ups the voltage to about the listed voltage above and the TV panel comes on with the LG Logo for a split second The STB pin gets a signal (I dont remember the voltage unfortunately) from the LED driver board (I dont know the real name of that board, but its the one that the power supply connects to in the TV). There is zero volts on the STB and the FAIL pins The 13.2v pins are putting out about 10v (don't remember exactly) The 80v pins are putting out about 60v (don't remember exactly) With the wires labeled like this (top to bottom): On my power supply, it is the 5th wire up from the bottom. It is likely different on different model power supplies perhaps? On mine, which is a P6L01D power supply on my LG 65UH5500 TV, is is clearly labeled "Fail" on the board.and also on the LED driver board that the power supply connects to. Your mileage may vary.so proceed at your own risk I guess. Not a sure fire recommended "fix" for anything, but does allow the TV work.so I thought I would post it. Perhaps I will unplug it when we are not watching it for a while just to be sure it doesn't do something crazy (like burn up or whatever). I am not crazy about it.as I am concerned about what the failure is that it wants to power off for (likely something with the LED strips as many have said, but I am not going down the road of that big repair).but so far have not seen any issues, no excessive heating, no blank areas on the screen or anything, so we will see what happens. I have tested it for about an hour and don't see any issues.so I intend to run it like this and see what happens. I then plugged the connector back into the power board (with the fail wire disconnected) and the TV powers up normally. I disconnected that wire (just pulled it out of the connector, carefully by releasing the holding tab on the pin and pulling out the wire). I put old one back in and then figured out that what is happening is that when the TV comes out of standby, a signal is sent BACK to the power supply on the wire labeled "Fail" and the TV shuts down and flashes the power light. I bought a new power board, but it did same thing. This happened back in April, and I had it sitting in basement since then but finally decided to see if I could get it going. Seems like it updated firmware (damn automatic updates sometimes!) and then when I turn it on, it flashes the logo on the screen and goes blank. I had the same problem as a LOT of other people. I thought I would post my results on this similar problem with my LG 65uh5500-ua TV.
0 Comments
Leave a Reply. |