Question about Televison & Video
THERE COULD BE SEVERAL THINGS CAUSING THIS, YOU WILL NEED TO GET A DIAGNOSES BEFORE ATTEMPTING TO REPLACE ANYTHING.
Posted on Oct 29, 2012
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Posted on Jan 02, 2017
SOURCE: no signal display on rca 42" lcd
If you have tried other input jacks and cables with the same result, then yes, the input/output board is defective or buggy. Sometimes a power drain can clear this up as well so it's worth a try:
1. Unplug the product's power cable so the device is not grounded to the house. 2. Press and HOLD the product's own power button for 1 minute to drain the capacitors. 3. Plug the product back into a wall outlet and try to turn it on.
Note: This procedure works with battery operated devices as well so remove the batteries and hold down it's power button. Electricity can remain in capacitors and on circuit boards enough to prevent normal functionality. By clearing the residue electricity, your product will have a fresh start and many times this will resolve a buggy or non-responsive device that appears to be dead.
If this doesn't resolve it, service would be necessary.
Posted on Mar 25, 2009
SOURCE: lg lcd tv screen goes
I had this problem on my 42" Philips. Just got it yesterday and worked fine on the tv stand. As soon as I mounted the TV to the wall via wall mount system, I had the exact same issue you did. Figured it out today.
The wall mount was putting pressure against the center of the back of the tv (tv set had a slightly rounded back plate, and the mount was a flat plate). As soon as I put spacers (part of the wall mount hardware set) between the wall mount braket and the tv so there was no contact except at the mounting holes, the tv worked fine.
My theory is the pressure pushed the tv back plate against some board components which caused them to overheat (no air flow); or put pressure on internal connectors. I dont know.
Hope this helps, may not apply to your situation.
Posted on Sep 18, 2009
Believe it or not...THIS WORKS!!!!
Look on the back of your set for an external remote jack. It should be the same size as a small headphone jack. If it has one, use a spare headphone plug or your headphones, and plug them in and out about 50 times. This will clean the tarnished contacts and make your remote sensor start working. Your remote sensor goes through a switch on this jack.
Posted on May 04, 2010
Tips for a great answer:
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Oct 11, 2009 | Toshiba 27A30 27" TV
Apr 04, 2009 | LG 42LC2D 42 in. LCD HDTV
Nov 25, 2008 | Vizio GV42L 42 in. LCD Television
Jun 16, 2008 | LG 42LB1DRA 42 in. LCD Television
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