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Repair guides and troubleshooting for the 40in LCD TV with model number LA40R81BD or LA40R81BDX. This television was released in early 2007.

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I have to reset tv each time I turn it on to get any channels

my tv comes up with a no signal message when i turn it on, i have to to do a total reset to get it to work, all is then fine until i turn it off, then have to to do it all over again next time i turn it on

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@paulineholt how do you perform the total reset? How long has this been going on and has the TV ever fully functioned? Has anything happened that may have caused this?

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@paulineholt, Pauline, If you have setup your TV as per your TV's manual, perhaps some how the TV is set to Demo/shop/store mode, if in this mode will not retain your set up. See links below for instruction on removing demo/store mode. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.

http://support-us.samsung.com/cyber/popu...

http://support-us.samsung.com/cyber/popu...

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