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Posted by Jan Panteltje on 02/01/07 18:08
On a sunny day (Thu, 01 Feb 2007 11:13:58 -0500) it happened Rick Merrill
<rick0.merrill@NOSPAM.gmail.com> wrote in
<z_ydna_ZG_dbjF_YnZ2dnUVZ_tudnZ2d@comcast.com>:
>Jan Panteltje wrote:
>> On a sunny day (Wed, 31 Jan 2007 10:02:46 -0500) it happened Rick Merrill
>> <rick0.merrill@NOSPAM.gmail.com> wrote in
>> <sq-dnRM_vOwAMl3YnZ2dnUVZ_sSdnZ2d@comcast.com>:
>>
>>> LCDs also use less power AND they do not have to use power even while
>>> they are OFF -
>>
>> LCD on standby uses as much power as anything else..
>
>LCD display if the computer is on sleep/hibernate/standby uses as much
>power, BUT an LCD display whose power is "Off" at the switch, does nOT
>use as much power as a CRT that's plugged in but in "off" mode. Are we
>speaking the same terms?-)
OK, what I mean is this:
There is some electronics in the monitor (or TV) that is powered when the switch is 'off'.
(Unless you have an ancient one with a mechanical switch).
In case of the TV (be it LCD or CRT) it will look for IR remote control commands, so
the IR receiver is always on.
In a typical CRT there may be a 'standby quick picture' mode, or whatever they call it,
where the heaters are also a bit pre-heated, so you have a picture in a second or so,.
A typical standby mode for a TV or printer consumes anything from 2 W to 10 W.
A pre-heated heater will maybe add 1 or 2 watts (would have to look it up), so in general
makes little difference if CRT or LCD.
I am not sure, but is there in the US a requirement for a real mains switch too?
My monitor does not have one, my printer does not have one....
My PC has one ( I am in Europe).
So if not, then it is safe to assume some electronics is always on, looking for a switch
press, or some remote control signal.
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