Question about LG 37LG30 37 in. LCD HDTV

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LG 37LG30 wont come on. Gives blue light, but screen stays black and no sound

Gives blue light, but screen stays black and no sound. Had HDMI plugged into laptop and could select it through input. Hit input now and see light flash but menu wont display. Maybe stuck in PC mode?

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  • 308 Answers

Sounds like the problem could be in the power supply of the TV. Have a technican check for defective capacitors if you're not equipped to do the job yourself.

Posted on Apr 22, 2013

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Posted on Jan 02, 2017

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SOURCE: Unable to display HDMI Input

Okay so you have the HDMI cables from both the DVD and the Cable box plugged into the reveiver?

Posted on Feb 28, 2008

  • 19 Answers

SOURCE: LG 37LG30 has stopped auto adjusting to screen format.

Try restoring to factory settings for everything(I believe there is an option there in one of the options menus). Double check to then see if it's set to set by program. 

If that fails to work you may be having a bad main board issue if it is the TV. Make sure it isn't your cablebox being stupid, though. 

Posted on Feb 21, 2009

  • 458 Answers

SOURCE: LG 37LG30 HDMI no sound problem

This is more probably a software fault within the TV. They need instructions for HDMI inputs & a no sound is a related fault. I would get in touch with your dealer to arrange the TV to be updated to cure this problem. Hope this helps.

Posted on Apr 18, 2009

SOURCE: screen and sound cut out while watching TV

http://online.manualspace.com/television-manuals-free-ebook/lg-television-service-manual/5319/lg-32lx4dc-lcd-television-service-manual-168.html
Above is a service and repair manual, use this to troubleshoot your unit.

Posted on May 11, 2010

  • 1 Answer

SOURCE: Sony Bravia does not recognize my Dell Inspiron 1525

I have the 1525 and you have to do extra steps each time you want the HDMI to be recognized by the Bravia - too bad it is not automatic as it is with some. Anyway what you have to do is have the HDMI cable connected from laptop to TV then go to your desktop - right click on an open area (away from icons), a menu will appear, let the cursor hover over Graphics Options - you'll then see Output To...then you'll see Intel Dual Display Clone...hover over that and you'll then see Notebook + Digital Television...left click on that and you should see your desktop on the TV in a few seconds. If it does not work the first time...get your movie or whatever you want to show up and ready and go thru these steps again...stupidly complicated aye? when it should automatically detect and show...are other TVs like this?

Posted on Dec 07, 2010

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I am having trouble hooking up my ps3 and my pc through the hdmi because it will not respond


Sounds like a bad HDMI i/o board, I have it happen on my receiver before. Try different cables? Try different devices?

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Contrast really dark but seems to improve after the tv has been on several hours


Hi:
You may have a problem with the inverters in the unit, they are responsible for lighting up the back panel. Check or have checked the power supply voltage to the inverters, should be around 18-24 volts DC. Also leaky capacitors on the power supply will cause this issue as well as leaky or puffy capacitors on the inverter.

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My LG E2250V-PN turns on and my Macbook goes to a blue screen, indicating that it is picking up a signal, but then nothing happens. My Mac screen never shows on my LG. Also, even if i try to press the menu...


Hi sophie,

I see you want to extend you monito to an LG external monitor.

Have you tried selecting the input PC or the input that is for the cable that you are using for the Video.

If you are using HDMI select the Input HDMI on your LG if you are using DVI then you should select the input DVI to be able to get the signal from the Laptop come out of your LG.

I hope this helps.

Have a nice day,

mvincentc

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When you turn on the tv the green light comes on blinks a few times then turns on. there is no picture no sound


Not so sure but looks like is seted up on HDMI input. So when you start it is trying to find and decode the signal but probably there isn't one. So try to switch it on another imput like TV or AV. Is there a death screen also, like no light no anything?

Jan 29, 2011 | LG 37LG30 37 in. LCD HDTV

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LG 37 the picture comes on for approx 2 mins then the screen is just black but still have sound


Possible cause of this problem is defective back light inverter board or power supply section that provides voltage to back light section.
Visual check is required to rectify defective board.

Oct 29, 2010 | LG 37LG30 37 in. LCD HDTV

3 Answers

47LG70 - PICTURE WENT OUT. STILL HAVE SOUND. HEARD A POPPING NOISE WHEN PICTURE WENT. TV IS ONLY 1 1/2 YEARS OLD. ANY IDEAS WHAT MAY OF HAPPENED.


I have had the same problem off and on with my 47LG70 for months. When the "popping" noise happens, the blue light in the corner stays on, so I know the tv is still on (sometimes I still have sound, sometimes I don't). Sometimes the screen goes black, but other times it is blue. If I turn the tv off then on again, it might stay on for seconds, minutes or hours. It's been very frustrating.

This seemed to happen right after I got my new Comcast box, which came with an HDMI 1.3 cable. I read somewhere online that this tv might not be compatible with that cable, so I unplugged it and am using component cables again. I just did this today, so I don't know if it will work, but so far the tv has been on for 30 minutes with no problems.

I'm pretty ignorant about HDMI compared to component cables. I imagine I will not get as good a picture with the component cables, but I am willing to sacrifice quality if I can just get the darn thing to work. Mine is also only 18 months old.

Hope this helps. If it doesn't, maybe someone else out there can help us both.

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2 Answers

Macbook Pro wont connect to Vizio tv


disconnect hdmi cable and shutdown pc, completely power it off. plug your hdmi cable back in to your pc and power it up. it should properly detect your tv. i use projector mode. tv must stay on while performing this procedure.

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1 Answer

LG 37LG30 HDMI no sound problem


This is more probably a software fault within the TV. They need instructions for HDMI inputs & a no sound is a related fault. I would get in touch with your dealer to arrange the TV to be updated to cure this problem. Hope this helps.

Apr 11, 2009 | LG 37LG30 37 in. LCD HDTV

1 Answer

LG 37LG30 has stopped auto adjusting to screen format.


Try restoring to factory settings for everything(I believe there is an option there in one of the options menus). Double check to then see if it's set to set by program. 

If that fails to work you may be having a bad main board issue if it is the TV. Make sure it isn't your cablebox being stupid, though. 

Feb 15, 2009 | LG 37LG30 37 in. LCD HDTV

1 Answer

Audio & video sync problems


I would advise you to call LG's customer service at 800-243-0000 to set up service. There is a service bulletin about this issue specifically for your model. Your set requires a simple software update to fix the audio delay with HDMI issue. You can ask LG's customer service to refer to bulletin #0IVL20080379. Hope this helps.

Jan 07, 2009 | LG 37LG30 37 in. LCD HDTV

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