Question about LG 37LC7D 37 in. LCD HDTV

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On/off problems with my LG 37LC7D TV. It is hooked up to Direct TV

When I turn on the TV and Direct TV box simultaneously with the remote, the Direct TV box comes on normally but the TV generally does not have sound or picture. The on light goes from red to flashing green. If I turn the TV (only) off and on enough times, it eventually comes on with both picture and sound. I have tried unplugging the TV and waiting 15 seconds and plugging it back in, but it didn't help. HELP

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  • LG Master
  • 76,630 Answers

You need to contact a local TV repair service, UNLESS you have the tools and the repair manual to repair it yourself, it will take diagnostic work to determine what is the cause, one thing is for sure you have a defective circuit board.

Posted on Jul 17, 2017

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: LG 32LX1D 32 not turning on

Hi, I think you have to get it checked out by a profesional, unpluging your appliances is a good idea but damage can also ocuur the moment you plug them back on. If you want to try it could be that a fuse is open there not normal fuses inside (small chip fuses surface mount)

Posted on Aug 24, 2007

  • 2 Answers

SOURCE: MY lg 32lx1d is not turning on..

I had the same sympton on my tv...it worked fine one day and the next day it would flash a green light a few times you would see the screen power on, but still be dark then the power light would go red. I couldn't do anything on the tv no menus or sound. It turned out to be a bad power supply, a new power supply will run around $200-300 - in my opinion it wasn't worth fixing. My neighbor was able to fix my tv - he repairs electronics - ended up cost me $100.00 - its been running for 7 months now no problems so far...I can have him fix this for you if you are in the area - shipping makes this to expensive..he is located in south jersey...or you can try a tv repair shop ( i called for this but they wanted between $75-100 to just look at the unit + repair cost - i would of been back to the 200-300 range) let me know if you need help...John
netplus@comcast.net

Posted on Oct 09, 2008

lightnbaby
  • 36 Answers

SOURCE: LG 50PC3D PLASMA WILL NOT TURN ON

Unplug power cord- safety first!
open backcover
check powersupply- top center right is p.s.
top left side of powersupply you'll see 5 capacitor 3300uF 10V.
see any pop up on top? replace it All with same rate or 16v is O.K.
do not use temperature rate 75c. Use 105C.
if you know how to solder. you save $300 least!

Posted on Mar 15, 2009

  • 8457 Answers

SOURCE: lg 37lc7d with no picture or sound but green light comes on

Ur tuner board is dead.Replaced this board to get picture back.Tries Shopjimmy.com,Ebay.com for the board part.

Posted on Feb 10, 2010

  • 2318 Answers

SOURCE: My LG Plasma 42PC3D turns on and off repeatedly. I

Your plasma TV has a power supply 6709900019A. These power supplies failed due to defective capacitors. See the picture below and check the capacitors mark with the red lines. There are 10 capacitors that should be replaced even if they do not show signs of bulging/swelling on top.
The value of the capacitors is 3300uF/10V but you can use 25 volts as long as they fit in the space provided by design.


4c29d64.jpg

Posted on Sep 24, 2010

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