Question about HTC Control4 AVM-HTC1-B Home Theater Controller - Black System

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Lg tv goes blank for about 3 seconds when certain light switches in the house are turned on or off.

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Your home is not grounded proper

Posted on Mar 12, 2010

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Posted on Jan 02, 2017

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I have a 50inch LG TV that when switching between programmes the TV goes blank for a moment


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LG TV Doesn't Turn Normally


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Mar 27, 2014 | LG 42LE5500 42 in. TV

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Changed lamp green light comes tv plays for about 1 or 2 minutes tv goes blank red flashes 3 times.


Not 100% sure but I am currently looking into this. 2 things it might be which are most probable. I replaced my lamp a few years back with no issues. This time around I figured I'd be proactive and bought a new lamp as my current one was going dim. Not unusable but I could tell. Lamp arrived and I put it in. Started up, great! Then after a few minutes it shut down and the red LED would blink 3 times. I removed the lamp and replaced it after unplugging the tv and turned it on. This time it ran about 20 minutes and same thing! Tried a third time and had the same thing. So I put the old bulb back in, and this time it didn't even turn on! I removed it and with a flashlight looked in there. There are two safety switches. The first is a very small pressure switch at the base of where the bulb interfaces to the TV. That switch ensures the bulb housing is seated. Secondly there is a switch in the rear side where the second door with the lever lock is. When you rotate it the switch is engaged. I replaced the housing carefully and made sure everything was tightly seated. The tv has been on for about an hour now no issues with the old bulb.

I have two theories and am leaning toward the second one I will suggest. One is that the bulb is somehow overheating as it is newer and brighter, or is somehow defective. The other theory is that as the bulb heats up the switch might be getting dislodged. I am leaning towards this given that it is working with the old bulb. But I am not certain. Soon I will try the new bulb again and may even attempt to slightly bend the switch out a little so that it is easier to engage.

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1 Answer

Lg tv turns off after a few seconds, the screen lights up but doesnt even say no source....


hi i have a lg 42lc46 and it wont turn on from stand by it just goes blank and the red light disappears can yiu help
cheers
mike

Apr 06, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

LG tv


That could be ;the ballast power section to ligth up
the screen. ;look inside the back panel if the neon are light on if not you have a problem whit this circuit
you will need a technician if neon are on , try change the input (video in 1,2 3 and tunner, if all gives any result ;you have to think about a bad ground in video circuit or main chassis y/c board;in a way or another
you may need a good tech ...
hope that give you a idea
have a nice day

Mar 16, 2010 | LG 37LG50 37 in. LCD HDTV

1 Answer

3 year old 42in LG LCD TV scrren went blank


You will either have a fault with the inverter board which drives the backlights or a faulty backlight in the screen. If the problem is a backlight then a replacement screen is the only cure. One or the other is breaking down after it has been opn for a certain period of time, have an engineer call out & check with a tester if it is a screen problem.

Dec 19, 2009 | LG 42LC2D 42 in. LCD HDTV

1 Answer

LCD TV blanks out when I flick the switch for my room lights


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1 Answer

Tv turns off after 3 seconds


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Jun 07, 2009 | LG 42LC2D 42 in. LCD HDTV

1 Answer

TV switches off after 3 minutes


You have a bad Fan,if fan stops turning on while tv is trying to come on lamp will not light and tv turns off.

Nov 24, 2008 | LG RU-52SZ51D 52" Rear Projection...

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