Question about Olevia LT37HVS 37 in. LCD HDTV
Power surge caused the picture to shake costantly. Also every now & then the screen show "No signal" & then shake again.
You have an impending power supply failure.
I would not leave the set on and unattended. There are mulitple protective measures against bursting into flame but I trust none of them completely.
I just answered a few other complaints similar to yours and pasted some of my response below-
I'm afraid you are right suspecting the power supply; most modern sets use switching power supplies and they often fail when the source AC is screwy.
It might not have been the low-normal-low-normal swings but an unseen, short term surge that killed it.
The cycling is occurring to prevent a potential fire or more severe damage; a component has been whacked and the supply is detecting a fault condition, probably excessive current from some circuit.
I'm afraid you are stuck with a repair, if it was mine, I'd look inside first but some basic instruments are needed and technical background.
I highly recommend to homeowners that they install a 'whole house" surge protector. Especially in lightning prone areas.
With installation, around $200-300 US although an intelligent person can do it, it will require shutting down the home.
The surge protectors range from ~$110-200; most have a long warranty and many include insurance to cover items damaged despite the protection.
Posted on Jun 11, 2008
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Posted on Jan 02, 2017
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