I have a 42 inch sanyo. Model Number dp42841. The volume goes up and down on its own. This is shown by the volume indicator on the tv. It was sporadic at first but it became such a consistent issue that the tv was rendered useless. Removing the remote from the room didn't help.
This is a problem with the sound select board, and there is no real solution. One thing to try is to press the manual volume up or down buttons on the side of the TV and keep them depressed to see of remote volume control is restored. This over rides the volume creep issue. I solved this by shorting the UP control to ground and the creep went away, but there is no manual volume control any more, but the remote still works.
SOURCE: THE MENU KEEPS POPPING UP ON THE SCREEN CONTINOUSLY ON MY 42 INCH
I had an LG 37" LCD that did this to me. Turned out to be bad solder joints on the side button board. Just reflowed and it starting working fine.
But now that I think about, I had another set do the same thing, only it wasn't the button board. I had to upgrade the TV's firmware via the USB service port. Just needed a USB flash drive and downloaded the firmware from the mfg's website. There were easy to follow instructions there too!
SOURCE: Vizio 42 inch remote is dead. Except volume up /
No,ur main reomte CPU is dead,this problem happen to many remotes in many tv models.Buy a new remote in this website 1-800-Remotes Factory Original.Get the same exact remote.
SOURCE: My tv remote for bush 42 inch lcd model number
Hi ive just had exact same problem phoned customer services and was told it is a child lock all you have to do is hold down the menu button on the tv for at least 20 seconds and all is cured
SOURCE: My tv went completely out. Is there a reset button
Try unplugging it. That is usually the reset.
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