Lg 49lv340c powers up and shuts down after 1 second

1 Answer

The Knight

LG Master 76,851 Answers
Posted on Feb 12, 2020

The Knight

LG Master

Joined: Oct 14, 2010

Answers

76851

Questions

Helped

14995096

Points

237762

Fault with its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

0helpful

2answers

LG tv 47LN5700 led driver

Check power setting and change it.....

Read full answer

Jul 18, 2022 • LG Televison & Video

0helpful

1answer

My LG 47LN5700-UH.BUSYLWM tv comes on for one second, shows the LG logo and shuts off. With the back cover off, I can see the back lights flash on for one second then off

The problem is defective LED back lights strips inside of the panel.

Read full answer

Oct 23, 2017 • LG Televison & Video

0helpful

1answer

It shuts off 2 seconds after i power on.

Several possibilities but most common seems to be power supply defect or poor connection. Check these resources. Note that other Youtubes that may address the problem are also accessible from the youtube link.
LG Smart TV Keeps Turning Off then On Again
Lg Du 42px12x shuts down fix
42 in LG LCD TV turns off by itself

I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881

Read full answer

May 06, 2016 • LG 42LG50 42-Inch 1080p LCD HDTV

0helpful

1answer

How do I get my screen to unfreeze

Hi Robert

For most LG phones...follow this....

First of all, take your phone and press the power button; the select "power off".
Wait while your phone is shutting down; wait a few seconds and then proceed.
Now, press the volume down and power button at the same time for 2 or 3 seconds until the LG logo appears on the display.
Then release the buttons and then press and hold them again.
Keep pressing the buttons until the recovery mode menu will be displayed on your LG G2.
That's it.
If you then want to go back to Android OS, just select "reboot system now".

Read full answer

Feb 28, 2016 • LG Cell Phones

0helpful

1answer

LG 42CS560-UE LCD TV turns off by itself Power Supply is New

You must accidentally setup the auto sleep function within 3 seconds interval. Go to the setup page to re-configure no auto sleep interval.

Read full answer

Jul 22, 2014 • LG Televison & Video

0answers

Why rca 19la30rq is shutting down after 1 second?

Read full answer

Be the first to answer Jun 30, 2014 • AOC 19LVWK LCD Monitor

1helpful

1answer

Why does my 42lb1dr-ua shuts down after 10 seconds

It is most probably the power supply board. There is a repair service for this board available at http://www.coppelltvrepair.com/p/791/lg-42lb1dr-ua-power-supply-board-repair-serivce-for-totally-dead-not-powering-on-or-shutting-down-tv

Read full answer

Jun 26, 2012 • LG 42LB1DRA 42 in. LCD Television

2helpful

1answer

TV come on for a short time. Picture id Good. TV shuts of in 5 min. Red light second down, blinks 3 times, stops top red still on. Restart, Green light take 10 second to come on then tv boots up, TV shuts...

Hi,
Please check and fix your defective capacitor on power supply circuit.
Regards, Jay

Read full answer

Mar 01, 2011 • LG 62SX4D 62" Television

0helpful

1answer

MY 42LG50 randomly shuts off and on. It's like it's on a sleep timer that I can't turn off. When it shuts off, it sounds like it powers down, then takes a few seconds, then powers back up.

If under warranty still you might want to contact LG as there may be a firmware update to fix this issue.

Read full answer

Nov 17, 2009 • LG 42LG50 42 in. LCD HDTV

0helpful

1answer

Monitor keeps shutting down into power save mode? Its a LG Flatron L1932TQ-BF. Turn it off then back on it comes on for a breif second then shuts down again?

This happens when the capacitors (680uf/25v & 1000uf/16v) on power supply board are blown.

Please locate an LG service center close to you by following this link

Read full answer

Oct 05, 2009 • LG Computers & Internet

Not finding what you are looking for?

View Most Popular

Televison & Video

LG tv 47LN5700 led driver

LG Televison & Video

151 views

Ask a Question

Usually answered in minutes!

Check Out the Latest HD Televisions Report

View all Fixya Reports

Are you a LG Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

PDF Manual

Related Topics:

Lg 49lv340c powers up and shuts down after 1 second

1 Answer

The Knight

Add Your Answer

Attachments: Added items

Related Questions:

LG tv 47LN5700 led driver

My LG 47LN5700-UH.BUSYLWM tv comes on for one second, shows the LG logo and shuts off. With the back cover off, I can see the back lights flash on for one second then off

It shuts off 2 seconds after i power on.

How do I get my screen to unfreeze

LG 42CS560-UE LCD TV turns off by itself Power Supply is New

Why rca 19la30rq is shutting down after 1 second?

Why does my 42lb1dr-ua shuts down after 10 seconds

TV come on for a short time. Picture id Good. TV shuts of in 5 min. Red light second down, blinks 3 times, stops top red still on. Restart, Green light take 10 second to come on then tv boots up, TV shuts...

MY 42LG50 randomly shuts off and on. It's like it's on a sleep timer that I can't turn off. When it shuts off, it sounds like it powers down, then takes a few seconds, then powers back up.

Monitor keeps shutting down into power save mode? Its a LG Flatron L1932TQ-BF. Turn it off then back on it comes on for a breif second then shuts down again?

Not finding what you are looking for?

Televison & Video

LG tv 47LN5700 led driver

Ask a Question

Check Out the Latest HD Televisions Report

Top LG Televison & Video Experts

Grand Canyon Tech

Cindy Wells

Kolbrun...

Are you a LG Televison and Video Expert? Answer questions, earn points and help others

Manuals & User Guides

LG BD690 USA Manual.pdf....

English.pdf. user-manual-47LG50 47 in....

42LH4900.pdf. user-manual-42LH40 LCD...

Related Topics:

Lg 49lv340c powers up and shuts down after 1 second

1 Answer

The Knight

Add Your Answer

Attachments: Added items

Related Questions:

LG tv 47LN5700 led driver

My LG 47LN5700-UH.BUSYLWM tv comes on for one second, shows the LG logo and shuts off. With the back cover off, I can see the back lights flash on for one second then off

It shuts off 2 seconds after i power on.

How do I get my screen to unfreeze

LG 42CS560-UE LCD TV turns off by itself Power Supply is New

Why rca 19la30rq is shutting down after 1 second?

Why does my 42lb1dr-ua shuts down after 10 seconds

TV come on for a short time. Picture id Good. TV shuts of in 5 min. Red light second down, blinks 3 times, stops top red still on. Restart, Green light take 10 second to come on then tv boots up, TV shuts...

MY 42LG50 randomly shuts off and on. It's like it's on a sleep timer that I can't turn off. When it shuts off, it sounds like it powers down, then takes a few seconds, then powers back up.

Monitor keeps shutting down into power save mode? Its a LG Flatron L1932TQ-BF. Turn it off then back on it comes on for a breif second then shuts down again?

Not finding what you are looking for?

Televison & Video

LG tv 47LN5700 led driver

Ask a Question

Popular Questions

42 inch LG Plasma TV - Lost picture

LG LCD TV Model 42LB5D. The closed caption option is greyed out. Help please.

LG LCD HDTV 'NO SIGNAL'

42 in LG LCD TV turns off by itself

LG flat screen TV speakers make a vibrating noise

Check Out the Latest HD Televisions Report

Top LG Televison & Video Experts

Grand Canyon Tech

Cindy Wells

Kolbrun...

Are you a LG Televison and Video Expert? Answer questions, earn points and help others

Manuals & User Guides

LG BD690 USA Manual.pdf....

English.pdf. user-manual-47LG50 47 in....

42LH4900.pdf. user-manual-42LH40 LCD...