Question about LG 42LE5400 42 in. LCD TV
Tv turns on but gets stuck on the LG screen
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Posted on Jan 02, 2017
i had and are having the same problem. first fix was new boards.. now i will be having it done again.. the first time the cost would of been around 850.00.. warranty thank you very much...now it will be the extended warranty i'm using...thank you again.. was told its a known issue witht he lg screens that came out earlier than the others the change out was just last aug or so.. next time it goes the extnded warranty will be a replacement..
Posted on Jan 31, 2009
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 bad capacitor 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 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 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 red light blinking codes, 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.
Posted on Jul 20, 2009
SOURCE: LG TV - TV Guide Function Stuck
I have the same issue on an LG TV. The TV Guide is completely black with a small picture in the corner. It's as if the software is no longer working.
Posted on Jul 31, 2009
My problem turned out to be a mother board that operates the IR remote sensor & the LG recommended repairman's estimate was over $500.00 with the part cost of $378.10. I spoke twice to LG's customer service and since the TV was over 1 year since purchased,(however not even 2) they offered nothing. One can now see why Best Buy sells their separate insurance policys, because over 1 year from the manufacturer there is no responsibility by them unless the failures reach gigantic proportions like they had in 1997 & 2003/2004. Buyer Beware
Posted on Nov 17, 2009
No, if ANY of the fuses were bad, the television wouldn't operate at all. I suspect that a technician will have to possibly make adjustments to the Y-sus and Z-sus panels to see if that helps. Possibly the y-sus panel is going bad or the plasma panel is going bad itself. Either way you need to have a technician look at the TV for you. Please take a few moments to rate my answer. Thank you.
Posted on Nov 18, 2009
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