Question about LG Televison & Video
Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board.
The most common thing to go out on flat panel TVs is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board. But, I can't say it's 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptoms.
You have a few choices:
1. You can try leaving the TV unplugged for 30 minutes so the TV can reset itself.
2. If by chance the TV is still under warranty, go that route.
3. If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15.
4. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.
I hope I shed some light on the subject for you.
Posted on Jul 14, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Dec 21, 2015 | LG 47LN5400 47" LED TV 1920x1080, 120 Hz....
May 28, 2012 | LG 47 47LV5500 47 LCD TV
Sep 17, 2011 | LG 47LC7DF 47 in. LCD HDTV
Apr 24, 2010 | LG 47LC7DF 47 in. LCD HDTV
Nov 27, 2009 | Philips Televison & Video
Oct 23, 2009 | Sony KDF-E60A20 60 in. LCD HDTV
Aug 31, 2009 | LG 47LC7DF 47 in. LCD HDTV
Jun 19, 2018 | LG Televison & Video
154 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: