Question about LG 47LC7DF 47 in. LCD HDTV

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LG tv no picture no sound power fails

Power fails

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Posted on Jan 02, 2017

  • 636 Answers

SOURCE: No picture, no sound on a LG LCD tv

If it is hot were you live , That model of t.v doesn't like heat, anything about 35 degrees celsius could cause a problem with the card components.

Posted on Jul 27, 2009

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LG LED TV has sound but no picture. Went out all of a sudden. Image shows with flashlight. Flashes for split second on power up and power down.


Your screens back light has most likely failed and or the voltage controller for the back light, both should be replaced.

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could be the screen or the picture power board
thee are two circuits in tv units and one of them has failed
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Hi Angela,
The backlight system of your TV has failed. Mostly it is the inverter part inside the TV which makes necessary power for the backlights fails. The power/inverter board needs to be repaired or replaced.

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Sounds like the power supply has failed. If it is still under warranty contact the manufacturer for repair, or if you purchased an extended warranty through the retail outlet then contact them.

Apr 27, 2015 | LG Televison & Video

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Lg-42px5d-eb tv made pop noise now no picture just sound think its ysus board but dont no were to buy one


Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.
  • No video, Power light is on or blinking.
  • TV is making a clicking noise.
  • TV takes a while to come on
  • Screen is very dim or flickers.

Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

May 03, 2011 | LG 42PX5D 42 in. Plasma HDTV

1 Answer

My lg 37 inch lcd works fine for five minutes then a big popping sound happens , i loose picture and sound but power remains, after this it will either keep popping or picture and sound will return for...


Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.
  • No video, Power light is on or blinking.
  • TV is making a clicking noise.
  • TV takes a while to come on
  • Screen is very dim or flickers.

Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Apr 17, 2011 | LG 37LC7D 37 in. LCD HDTV

2 Answers

42 inch LG Plasma TV - Lost picture


This is almost certainly the device that sends electricity to the the plasma in the panel after failing. Bring to your local repair shop and expect to pay 300-400 parts and 100-200 labour.

Cheers,
Stephen

Apr 28, 2009 | LG 50PC1DRA 50 in. Plasma Television

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