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In Reply to: RE: Sharp 40-inch Aquos TV keeps turning itself off. posted by Dave Pogue on September 12, 2014 at 06:42:01

The first return on a DuckDuckGo query of "sharp aquos auto turn off'.

"Why does my AQUOS� TV shut down after 3 hours?

The POWER CONTROL setting in the Display Menu allows you to save energy. When the NO OPERATION OFF feature is set to ENABLE, the power automatically shuts off if operation is not detected for 3 hours. To allow the television to operate continuously, the NO OPERATION OFF feature must be set to DISABLE."

Sharp product FAQs (Open in New Window)

Follow Ups:

You nailed it. - Dave Pogue 19:15:06 09/17/14 (3)
I changed the menu setting this morning and didn't have a turn-off tonight. Thank you.

Two things are curious about this.

The 3-hour turnoff just started a couple months ago, to the best of my knowledge. But the Sharp is more than 3 years old.

The owner's manual calls this "No operation off" and says that it shuts the power down when there is no operation for 3 hours. I couldn't connect this -- still can't -- to actively watching the thing during what I would call normal operation that happens to extend past 3 hours. Besides, the manual also states that there is an on-screen count-down starting 5 minutes before turn-off. Never happened.

Anyway, thanks again, to everyone who responded, especially cdb.
- RE: You nailed it. - Jack G 04:50:09 09/18/14 (2)
  No operation means no use of the remote. This is probably in case you fall asleep in front of the TV.
  Jack
  
  Edits: 09/18/14
  - RE: You nailed it. - DavidLD 05:06:08 09/18/14 (1)
    Sometimes, say a sudden power outage when a TV is on and running, electronics gear does odd stuff, as in returning the TV to all the original factory default settings. Do you recall having a sudden power outage while the TV was on and running just before this 3-hour shutoff started? It obviously came from the factory that way as the default.
    - RE: You nailed it. - Dave Pogue 06:58:00 09/18/14 (0)
      I don't remember one, but it could have happened.

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