Better to frequently turn an LCD on/off frequently, or leave it on the entire time? - AVS Forum
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post #1 of 8 Old 01-20-2008, 09:19 AM - Thread Starter
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I have a 37-in LCD that I use with various sources. There are times, like when listening to a podcast, monitoring a download, etc, when I don't need the TV turned on constantly but just need to monitor occasionally. Or a I might just want to listen to a music channel via my cable service.

During such times, is it better to frequently turn the TV on and off, or should I leave it on for the duration? To give a specific example, yesterday I turned it off and on 7 or 8 times over the course of just over an hour.

I'd like to leave power consumption aside for this question and just focus on the TV's longevity.
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post #2 of 8 Old 01-20-2008, 09:26 AM
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LCDs aren't as affected as DLP's with bulbs to on/off cycles, but any of these electronics expend a lot of energy and stress on parts, at start up each time. 7 or 8 times an hour is too many times. Leave it on unless you plan to be away from it for an hour or two at least.
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post #3 of 8 Old 01-20-2008, 11:39 AM
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+, but you want a TV that's going to fail to fail during the 1st 30 days, or 90 (parts & labor), etc. As you get past what is called "infant mortality", electronics become more and more reliable. The primary cause of infant mortality is solder (what's call cold solder joints.) They fail when put through thermal cycles. This is also a big reason to avoid the first production run as they dial in the manufacturing process.

So, turn it on & off for the first 30 days.

HD-DVD is dead, so now I'm a Gary McCoy fanboy.
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post #4 of 8 Old 01-21-2008, 09:19 PM - Thread Starter
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Thanks for the info guys, interesting stuff.
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post #5 of 8 Old 11-25-2009, 08:00 AM
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Hi Everyone,

I just purchased the Vizio VL320M on Saturday from Sears. When I press the power button on the TV remote, it takes about 10 seconds for the TV to be fully on and i can watch TV. Does anyone else experience this? Is this just my TV or is this all LCD TV's?

Any information would be awesome.

Thanks,
Max
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post #6 of 8 Old 11-25-2009, 01:53 PM
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Quote:
Originally Posted by MaxBlock88 View Post

Hi Everyone,

I just purchased the Vizio VL320M on Saturday from Sears. When I press the power button on the TV remote, it takes about 10 seconds for the TV to be fully on and i can watch TV. Does anyone else experience this? Is this just my TV or is this all LCD TV's?

Any information would be awesome.

Thanks,
Max

This is how the two LCD TVs that I have power on. Press button... wait 10 seconds. I don't know if they are all like that, but mine are.
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post #7 of 8 Old 11-25-2009, 02:01 PM
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Quote:
Originally Posted by MaxBlock88 View Post

Hi Everyone,

I just purchased the Vizio VL320M on Saturday from Sears. When I press the power button on the TV remote, it takes about 10 seconds for the TV to be fully on and i can watch TV. Does anyone else experience this? Is this just my TV or is this all LCD TV's?

Any information would be awesome.

Thanks,
Max

Yes that is normal. I think most TVs does that in order to reduce power consumption while on standby.

I had a Toshiba that had a fast power on option which allows the TV to turn on about 3-5 seconds instead of 10.

However I think the manual said that the fast power on mode consumed about three times as much electricity during standby when compared to the normal power on mode.
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post #8 of 8 Old 11-25-2009, 09:37 PM
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Part of what you may be experiencing with this delay is the time the set needs to receive from whatever source is feeding it enough data to decode and in turn produce a viewable picture with sound. Remember digital isn't like analog, when simple receiving the signal and demodulating it was enough to produce a picture with sound. Now there is all this decompression/decoding overhead that must be done by the microprocessor inside the set to the incoming data stream to produce the same thing.
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