Question about LG Televison & Video
This tv does not turn the problem is in the power supply but I can not find a wiring diagram of the power supply model is PLLM-M901D. Hopefully puediesen help me solve this problem. Thank you.
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Posted on Jan 02, 2017
SOURCE: tv will not power up
it's failing to turn on, the main power supply is probably at
fault and without some technical background and a couple of test instruments,
you will not be able to do the repair yourself.
What you can do though is; unplug the set, let it stand overnight or at least several hours, remove the back panel and look for a separate board with mostly larger components on it; it will have a ferrite core (no laminations as with a line-frequency part) transformer on it and several larger capacitors which are cylindrical and mounted vertically to the board.
Before touching anything inside, especially on that board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.
If you see signs of overheating such as discoloration of the board material, it may not be repairable but if you can find a part number on the board, you might be able to buy the power supply and install it yourself but it will likely have the same problem eventually unless they have altered the design.
If there are no signs of heat damage to the board, there may be companies offering to repair it as a subassembly instead of repairing the whole set which could be much more expensive.
If you choose to replace or have it done, the power supply still may not be at fault since most are capable of switching on and off if a downstream problem is causing an overload.
Posted on Mar 30, 2009
Have an LG26Lx1D for about 3 years, dropped off by my son.(Figures).Power light just blinking, but went back to red.Removed back panel, and metal cover. Just above antenna/cable input, its a small fan,mine was full of dirt. Blow off dirt, and make sure its turning freely.
Install back the covers, an voila....its a miracle...its working again.
Posted on Mar 21, 2010
most LG have a "vacation switch" on the bottom right hand side of the set very near that standby light.
it is placed poorly, where you can accidently click when grabbing the TV to move it or swivel it.
it is a toggle switch, a "master power" switch.
you may have bumped it to the off position. flip the switch, your standby light will come back on.
Posted on Apr 16, 2011
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