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My 42 in lg tv model number 42lg30-ua when i press power on it tries to come on makes like a berping dound than shuts right back off

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  • Gene May 11, 2017

    Hi Robert Crunkelton, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? Did the TV give any indication that something was wrong before it stopped working, like not powering on the first time you press the power button, shut itself off, screen flicker, etc?

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: My Polaroid 42 Inch LCD Keeps shutting off.

This might sound a little crazy but, i had the same problem with my rca 50 inch, and he changed the bulb. which are pretty $$$$$125.00 at my tv repair person cost. the real cast was $219.00.Hope this helps you

Posted on Dec 05, 2008

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  • 608 Answers

SOURCE: i have a lg televison

I had a similar problem with my 42 in Philips LCD HDTV.



Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors. Many electronics companies were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you.



1. Have it fixed by a professional $$$$$$$???????



2. Open your TV and find PSB. Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found at tv-part.com but supplies are limited.



3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.



I have a tip/tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. It's called: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.


Hope this helps and Good luck.


Kaufman605

Posted on Dec 12, 2010

diodeic
  • 1622 Answers

SOURCE: Hi, my 42" LG TV

Hi, the appearance of black streaks on the screen of a Sharp LCD TV is common problem most customers will have to contend with. One of the most visible signs is the appearance of a message that reads " loss of sync". In this situation, the individual will still hear the sound coming from the LCD TV but the picture disappears especially within 10 minutes of putting on the TV. In some other cases, small horizontal lines may develop on the LCD screen especially when an object is thrown at the screen -the horizontal lines develop at the spot where the object hits the screen, and these lines are often visible when the TV is turned on and such problem is characterized by Grey color screen with no pictures.

Another common situation is the appearance of vertical red line across the LCD TV screen. In this case, the connection from the internal ribbon connector and the display has been effected. This problem may degenerate into the formation of two screens which are separated by a black line .

LG TV screen repair for Black streaks on screen

The best possible LG TV screen repair for vertical lines on your LCD screen is the replacement of the screen itself. It would be ideal for you to know the warranty status of your LCD TV before returning it to the manufacturer. In the case of the formation of black streaks on the LCD screen, a possible reason is that one of the substrates in the screen has been fractured or it can be a result of the release of some bubbles within the screen, especially after the screen was hit by an object. You don't have to think much about this problem, as it should be in your best interest to get a LCD TV repair service to replace the screen for you.
In some other cases, some other components of your LCD TV screen might have been broken down { hardware problems} resulting in black streaks or the formation of Grey or black color on your screen, you will need to get your LCD TV screen undergo some diagnostic procedures before the problem is fixed. This will help you avoid future re-occurrence of the problem.

Thanks for using fixya.....

Posted on Mar 26, 2011

AJIN G
  • 6694 Answers

SOURCE: I need a schematic diagram for an LG 42 TV Service Code 42LD450-UA.CUSWLO

If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

Posted on Sep 17, 2016

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1 Answer

My 42 in lg tv model number 42ld450-ua went off


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time.

Sep 25, 2014 | Televison & Video

1 Answer

Lost remote need number or replacement


Here is a link where you can purchase a remote for this model. Make sure you verify the full model number IE:42LG30 or 42LG30UD

http://www.remotes.com/remotes/servlet/rs?a=Search&o=c&uid=0&m=42LG30&uuid=13117240981180

Jul 26, 2011 | LG 42LG30 42 in. LCD HDTV

1 Answer

I have a lg televison model # 42lg30-ua, i have sound but no picture, can you give me any suggestions?


I had a similar problem with my 42 in Philips LCD HDTV.



Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors. Many electronics companies were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you.



1. Have it fixed by a professional $$$$$$$???????



2. Open your TV and find PSB. Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found at tv-part.com but supplies are limited.



3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.



I have a tip/tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. It's called: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.


Hope this helps and Good luck.


Kaufman605

Dec 12, 2010 | LG 42LG30 42 in. LCD HDTV

1 Answer

I am trying to remove the tv stand base off my 42lg30. Can someone please help!


DETACHMENT
Carefully place the TV screen side down on a
cushioned surface to protect the screen from
damage.

Loose the bolts from TV.
you can view a larger image by clicking on this link then selecting the Manual on the right hand side
the information you will need is on page 13 of the manual
http://www.lg.com/us/tv-audio-video/televisions/LG-lcd-tv-42LG30.jsp

Detach the stand from TV.
After removing the stand, install the included
protection cover over the hole for the stand.
Press the PROTECTION COVER into the TV
until you hear it click.

Dec 03, 2010 | LG 42LG30 42 in. LCD HDTV

1 Answer

I NEED TO FIND A NEW SCREAN FOR MY TV IT HAS A CREAK AND I NEED A NEW ONE


The panel for this model approx cost $1000~$1500, If you need more information, please tell me the service code, such as 42LG30-UA AUSTLJM, 42LG30-UA BUSTLJM, 42LG30-UD AUSQLJR

May 08, 2010 | LG 42LG30 42 in. LCD HDTV

2 Answers

I have an LG 42lg30 and the user manual does not show you how to program other divices remote codes so the LG remote controls my cable box and dvd player. Does anyone know how this remote works?


go and buy a universal learning remote and you will be able to program all your devices on the remote, works very nice. as far as the lg remote, dont think there is a way where u can program your cable and dvd onto the remote and I have lots of experiences with LG

Mar 26, 2009 | LG 42LG30 42 in. LCD HDTV

2 Answers

What should I set my computer settings to when trying to connect to my Lg 42lg30 TV


check the screen resolution from your manual, your computer display resolution must match your tv spec.

Mar 18, 2009 | LG 42LG30 42 in. LCD HDTV

1 Answer

LG 42LG30 TV will not scan in DTV stations


Sounds like you're having a problem with your main board assembly. The main board is what processes all your audio/video signals. So if it's not scanning DTV you've probably got a bad card. Call LG's customer support line at 1-800-243-0000 and have them schedule you a service call. Request a DMST if there's one available in your area as they actually work for the factory. Otherwise you may get an ASC(authorized service center) which can be less than reliable at times when it comes to customer support and satisfaction. 

Remember to have your proof of purchase handy as well as the full model and serial number. And by model number, I don't just mean 42LG30. On the side or back of the unit there will be a manufacturer's code. The first part is indeed the model#. However, it will appear something along these lines:
42LG30-UA.AUSRMJR or something similar to that. 

Have that ready definately. Any tech worth their salt will call you a few days beforehand to try to get that data so they can order boards before coming out there, saving them, and you, an extra trip when they have to come and order boards. Without that extended manufacturer's code, LG techs have a hard time with a lot of models trying to order parts as different revision codes and such use slightly different circuit boards. 

Feb 20, 2009 | LG 42LG30 42 in. LCD HDTV

1 Answer

Want to program BellVu remote to control 42LG30 TV volume and sta


Hold The Clear Tv buttom until all 4 light flash red , then press code search at the bottom right , then the up arrow until ur tv goes off and finally record , after that u only need to press the red tv buttom to open it or close , If it doesnt open it back its because u press the up arrow after the tv was shut off so do the same thing be using the down arrow . Bell doesnt even know how to manually find the code with their own remote :(

Jan 31, 2009 | LG 42LG30 42 in. LCD HDTV

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