20 Most Recent LG 32LC7DC 32 in. LCD HDTV Questions & Answers

Press and hold the Menu button for 8 seconds and a passcode screen will pop up. Enter 1105 and press enter. This will get you to the Installation menu. You can make adjustments to inputs and channels in the Public Display Settings portion of the Installation Menu.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Sounds like main board fault. Contact any service technician;or the authorized service center.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/ .In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Disconet the power cor from the wall for a minute or more to reset the CPU.

Power Supply board is dead.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Yup. There is. Eventually it may not even turn on anymore. Does the picture look normal? Did you notice anything diffrent such the sound, etc.

Getting just a blank white screen and lost all functions to the tv.This problems is the tv Tuner signal board is dying,will be dead.That the board,where the incomming tv broadcasting signal cable plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner signal board for the replacement.

I had the same problem and it was a capacitor in the power supply

These problems can not be taken any pro-active measure to prevent this,because it the tv electronic board call the T-CON decoders board is dying,that why is causing this problems.These problems,will not happen to all the tvs sets in ur hotel at once.So,just take care the tvs that have these problems.

Sounds like it started "Protection Mode" because of a failed electronic part inside the TV. When this happens, the TV will keep turning itself OFF or will not turn ON at all. This keeps the other part inside from being damaged. Most likely the TV has a power supply related problem. It's possible that it maybe a badcapacitor or transformer on the power supply board. The common part to go bad for flat panel screens circuit board that powers the screen. Most manufactures call it a Backlight Inverter Board.
But, I can't say what is 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptom.

You have a few choices:
1. You can again try leaving the TV unplugged for 30 - 45 minutes so the TV can discharge and 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, schematics, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15 by searching on the internet with the part number.
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.