Question about LG 42LH3000 42" HDTV LCD TV

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Lg 42LH3000 no power - LG 42LH3000 42" HDTV LCD TV

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See Ac power cord see fuses and or power supply Module replacement.

Posted on Nov 03, 2012

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Posted on Jan 02, 2017

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Lg 42lh3000 color issue


Sounds like the something seriously wrong with the TV. Make sure all the signal cables are tight and also see if the issue happens on all inputs including antenna. If it does not, the issue is just the one input or cable. If it does the TV may need internal service, and you will most likely just be better off replacing it.

Apr 09, 2014 | LG 32LH3000 32" HDTV-Ready LCD TV

2 Answers

My lg 42lh3000 picture has darkened any answers


Sounds that the backlight inverter board has damaged. Read more details about this fault by this site 'Electro-help' It is an electronics equipments service help site. Google for it. Pull up older posts there.

Jun 11, 2012 | LG 42LH3000 42" HDTV LCD TV

2 Answers

42lh3000 Right half of screen is black but goes better when warms up, still flickers at times, how can i repair this? The tv is about 2 years old and never had a problem with it before, the sound is great...


I have fixed an LG 42LH3000 with this very problem. Large TVs have a tendency to flex and bend ever so slightly when being moved or through heat, this can affect the connection of the ribbon cables at the top of the screen - either at the end where the Tcon board is or where the screen driver board is. When one end of the cable loses contact, half the picture goes (there are two ribbon cables. one for each side of the screen).
Remove the cables then carefully reattach them. If you still have an intermittent problem would suggest leaving the screws out of the T-con board as this will give the ribbon cable more slack.
Don't attempt any of this unless you know what you're doing - risk of damage to screen if handled indelicately also risk of fire when plugged back if the ribbon cables aren't secured properly.

Dec 19, 2011 | LG 42LH3000 42" HDTV LCD TV

1 Answer

Is the 42lh3000 TV compatible with the ht805sh home cinema system for getting TV sound through the speakers? i have it set up and works fine with DVD sound but i cant get the TV sound to come through it?


I looked at your two products and I'm not quite sure how you have it hooked up but, your TV has a total of 3 HDMI inputs and, a digital optical out, which means, that all your video componenets, DVD cable/sat, if you have, should be able to be connected directly to your TV. You can use the TV's menu to chosse what you want to watch. The TV also has a digital optical out, which you would connect to the digital optical in of the home theater. You would use one setting(sat, aux, whatever, depending on theater inputs), and when have "TV" selected in your menu, you should have sound through theater. You may have to turn volume down or mute for this to work. If you have any questions, let me know.

May 23, 2011 | Audio Players & Recorders

1 Answer

Hi I am using my LG 42LH3000 LCD TV as a monitor for my Dell M65 Precision Laptop, which works fine but only as long as i have the lop top open, as soon as i close the lid of the lap top the TV goes blank....


Make sure you set the right action for the laptop closing. Right click on the battery or plug icon on far right of the windows bar the go to power option.

Then make sure that for any power mode the computer won't enter the sleep state when closing the lid.

If this doesn't work, you might have a dell specific software the takes care of the power setting and override the windows default one, try to find it and alter the settings as mentionned above.

good luck

May 07, 2011 | Dell Precision M65 Notebook

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I am looking for a remote control,operating instructions or manual and the connecting cables for a 42inch lg tv model 42LH 3000 xd full hd 1080p digital freeview lcd


The manual for the 42LH3000 is available from LG at the product page: http://www.lg.com/ie/tv-audio-video/televisions/LG-lcd-tv-42LH3000.jsp . Click on the Support Tab. Alternative site: http://www.lg.com/uk/tv-audio-video/televisions/LG-lcd-tv-42LH3000.jsp again click on Support for the link to the manual.

LG has a repair parts referral page, http://www.lg.com/us/support/parts/support-find-parts.jsp . Go to the site to find your area supplier. The LG remote that I found is http://www.mcmelectronics.com/product/DISTRIBUTED-BY-MCM-REM-LG-W-/32-23445 . This is a Midwest US supplier; this site may also have the power cord and covers that came with the TV if they are missing on yours. Ferrite cores may or may not included but are available at stores like Radio Shack or online.

The UK repair parts site is: http://www.lg.com/uk/support/parts/support-find-parts.jsp . http://www.alllgparts.com/ is the supplier and has the remote, power cord and screws for the base listed.

Universal remotes should also work if they were programmed 6 months or more after the TV was released. Low end universal remotes may not match all of the features. You'll probably need to try several codes to make sure the remote works for all the features, not just on/off. The high end remotes that can be programmed via a USB connection to a computer are the fastest to set up.

The other cables to connect your TV are available at most stores that sell electronics (with a markup) or online cable suppliers. I like Cyberguys.com but there are others.

I hope this helps.

Cindy Wells

May 03, 2011 | LG Televison & Video

1 Answer

42LH3000 LG LCD TV


SOME TV'S HAVE A PANEL TO ACCESS THE A/V CABLES...I.E. HDMI,S-VIDEO,COMPONENT,ECT. IF YOURS IS THE CASE LOOK WHEN YOU REMOVE THE PANEL AND SEE IF THERE ARE ANY COVERS THAT NEED TO BE REMOVED SO YOUR STAND CAN SLIDE INTO PLACE.

Feb 20, 2010 | Televison & Video

4 Answers

SKY REMOTE NOT WORKING WITH MY NEW LG 42LH3000


To use sky+ remote control with LG 42LH3000 you must have a rev ver8 remote controller.
The codes are stored in a database of the Sky remote. If the old codes don't work
you may need to buy the latest Sky remote. Otherwise it is a matter of waiting for the
new Sky remote which may have the updated codes.
Note: LG Support supplied the following for Rev.8: 0206, 1293, 1665, 1174, 1176, 1219, 1280, 0857, 0851.

Version 1: August 1998
Version 2: December 1999
Version 4: May 2001 (Sky+ introduced)
Version 6: March 2004
Version 8: January 2006 (includes all current Sky+HD remote controls)

Aug 11, 2009 | LG 42LG30 42 in. LCD HDTV

4 Answers

42LH3000 I CANT GET MY SKY REMOTE TO WORK WITH THIS TV. I NEED A CODE IF THERE IS ONE


To use sky+ remote control with LG 42LH3000 you must have a rev ver8 remote controller.
The codes are stored in a database of the Sky remote. If the old codes don't work
you may need to buy the latest Sky remote. Otherwise it is a matter of waiting for the
new Sky remote which may have the updated codes.
Note: LG Support supplied the following for Rev.8: 0206, 1293, 1665, 1174, 1176, 1219, 1280, 0857, 0851.

Version 1: August 1998
Version 2: December 1999
Version 4: May 2001 (Sky+ introduced)
Version 6: March 2004
Version 8: January 2006 (includes all current Sky+HD remote controls)
Once you have the ver 8 controller - code 1176 should work

Aug 11, 2009 | LG 42LG30 42 in. LCD HDTV

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