Question about LG 42LC7D-UB Television

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LG 42LC7D turns on ok but no display or sound,tried using monitor out with another tv but no picture either

Tv seems to start up ok but nothing appears on screen. can see backlight, pressing remote and tv responds by blinking green light on front but nothing happens on screen. i plugged in another tv into monitor out to see if anything was happening but nothing comes out.

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  • LG Master
  • 3,904 Answers

Check to make sure you have the right input selected for the input that ou have plugged into.

Posted on Jan 20, 2013

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Posted on Jan 02, 2017

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SOURCE: Hard time turning on tv. I turn it on, green light flashes a few times then becomes solid green. No picture or sound. I turn it off and light becomes red. I do this at least 5 times before tv will

There are some capacitors on the main boardthat are low quality. You can buy a capacitor repair kit on Ebay that contains a set of capacitors to replace the offending ones - about 15-16 bucks. I soldered in the new capacitors and the TV has worked perfectly since.

Posted on Nov 28, 2011

tvservice306
  • 458 Answers

SOURCE: my LG 42LB5D TV turns on after the LED blinks 11

REPLACED MANI BOARD
Manufacturer LGE Part Number EBU39191501 Description MAIN TOTAL ASSEMBLY

Posted on Sep 19, 2009

  • 1 Answer

SOURCE: No Sound, No Picture on LG 42LC7D

I do not have a solution but I have the same situation with my tv

Posted on May 25, 2010

  • 2 Answers

SOURCE: Turn tv on. green light solid display, no picture or sound

The flashing green light is likely indicative of a self-test failure, indicating the TV has detected some sort of internal fault. With no picture or sound, one strong suspect is the power supply. Flat-panel TV's have an internal DC power supply that converts the inbound AC current, and when these fail, or are unable to supply a minimum level of power to the set, it can behave as you describe, providing only enough power for the green light to illuminate.

Posted on Jul 28, 2012

  • 2 Answers

SOURCE: Screen is black even though the green light is lit

sound like you have some bad capacitors inside your tv take the back off and check them if capacitors are raised up on top they are bad

Posted on Sep 02, 2012

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Hard time turning on tv. I turn it on, green light flashes a few times then becomes solid green. No picture or sound. I turn it off and light becomes red. I do this at least 5 times before tv will come...


There are some capacitors on the main boardthat are low quality. You can buy a capacitor repair kit on Ebay that contains a set of capacitors to replace the offending ones - about 15-16 bucks. I soldered in the new capacitors and the TV has worked perfectly since.

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