Question about LG 37LC7D 37 in. LCD HDTV

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Medion lcd hd 31.5 inch tv won't turn on

Power light is on but when i go to turn it on with the remote...nothing..every now and agian it will turn on but mostly not?

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I bought one also from ALDI for my son's Xbox 360, it is only 3 weeks in use and I have the same problem. The red led is on, indicating that it is in standby mode and recieving power but I can't turn it on either by pressing the power on button on the TV it's self or the on button on the remote. This started happening a few days ago and it's totally random. I found that if you unplug the TV from the power point or alternatively switch off the power point for a minute, than power it on again it will "WORK AGAIN" for a while. Like I said it is random, eventually it will return to the not being able to be switched on state at which time you will have to repeat the process. So thus, this is not really a solution. I am about to return the TV for a refund, and it's a shame because otherwise it's not too bad. and looks OK too.

Posted on Jan 21, 2013

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Unplug for 2 minutes. Plug it back in and hold the power button down on the tv and the light will turn green and the tv will work. It just happened to me and I did that and it worked. :)

Posted on Jul 06, 2013

  • Thomas Schreier
    Thomas Schreier Mar 03, 2014

    yes, that worked, thanks, what could that be?

  • JohnnyCakes Sep 14, 2016

    Did anyone find a cause for this fault ?
    I've read on OzBargain website that there is a electronics board that you can replace inside the TV pretty easily DIY. Wondering if anyone else can confirm that or provide more info - thanks

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Mediion LCD 31.5 inch. Standby power on failure.

I received one of these broken TV's recently for use in my home lab. The television would turn on when cold but fail to turn on from standby after a few hours or less of being plugged in. To resolve this I reflowed the firmware flash chip and surrounding components (decoupling capacitors etc) with a hot air station. I believe the part was U8 on the board, a winbond SPI flash chip.

The tv has worked fine since.

Posted on Jul 20, 2018

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6ya staff

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Posted on Jan 02, 2017

DrewPalmer04

Andrew P.

  • 325 Answers

SOURCE: hosseinhi, 32 inch lg hd

Fault one: Power supply not supplying the 24v needed for the backlight inverter. Replace the capacitors in-line to the 24v line. Replace capacitors with same uF and higher Voltage rating. EX: 1000uF 10v --> 1000uF 35v.



Fault two: Backlight inverter has blown surface mount fuse nearest the 24v input of the backlight inverter. If not the fuse, then backlight assembly will need changed based of serial # of the board.




Thank you, hope this helps!

Please rate!drewpalmer04_55.jpgdrewpalmer04_56.jpg

Posted on Apr 13, 2011

budmrtn

Bud Martin

  • 11361 Answers

SOURCE: I HAVE A 55 INCH

Please clarify the 'THE USUAL FIXES'
Testing remote control:
The remote control puts out IR (InfraRed) signal that human eyes cannot see, to find out if the remote is sending out the signal or not you just point the remote at the digital camera's Lens (Digital Camera can detect IR), you should see flashing light on the camera's screen when any one of the remote button is pushed. If you do see the flashing on the camera, then the problem is in the TV IR receiver or the main logic board; more troubleshooting with scope will be needed to look at the signals.
Parts: www.shopjimmy.com
www.remotes.com
http://www.remotecontrolscenter.com
http://www.newremotecontrol.com/
http://www.replacementremotes.com

http://www.newtvremotes.com

http://www.everytvremote.com/

Posted on Jun 16, 2011

kane_smith

kane_smith

  • 3 Answers

SOURCE: my LG TV red light won't turn on. although the plug fuse and the remote OK

Try manually pressing the power/standby button on the tv (side or bottom) the red light should appear, most modern tv's will turn on simply by pressing the channel up or down on the tv itself.. But unfortunately in most cases, this seems to be an internal surge and needs a professional to inspect..

Posted on May 14, 2012

David Low

  • 458 Answers

SOURCE: 37 inch LG LCD won't turn on due to power failure

Power failures can cause all types of problems, have you firstly checked the fuse in the mains plug? If that is ok then it may have blown an internal fuse in the power supply board, these are there to protect the rest of the circuit from power surges.

Posted on Mar 24, 2009

ronaldo_ross

Ronado Panaligan

  • 1056 Answers

SOURCE: My son dropped my 32'' inch LG lcd tv now it won't

It probably has a cracked circuit board. If you want to repair it on your own open it up and see if you can find where that cracked section is and see if you can resolder it back properly.

Posted on May 28, 2011

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I hope this helps

MobileJB

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