My elderly (and very retired) parents watch
a lot of television. They've got a 9" hang-
ing from cabinets in the kitchen, two or three
13 inchers, and a 20 something inch model in
the living room. (Yeah, I ran all the cable,
etc.)<p>If the power is removed for any reason all
the channel selections, color settings, etc.,
vanish.<p>The procedure for programming these TV's can
be incredibly confusing, especially for
elderly people who hate computers.<p>I've breadboarded a zillion circuits over
the years, and have used the one or two
diode and a battery method to retain memory
in IC's.<p>Modern televisions are cheap and compact mainly
because they are built using tightly integrated
modules. Except for the CRT and a few other
components, they are essentially a TV on a
chip(s).<p>Is there a way to add a battery to your plain
vanilla, nine, thirteen, or twenty inch TV
that would retain the memory when the main
power is removed? <p>I even had the crazy thought of using a small
DC to AC inverter for each set in my parents
home, that would kick in when the main power
drops out. Like WC Fields once said, "when
I get the urge to exercise, I lay down until
the feeling goes away."<p>WildBoar
$7.00 Digital Clocks Have Battery For Memory Backup, Why
- Chris Smith
- Posts: 4325
- Joined: Tue Dec 04, 2001 1:01 am
- Location: Bieber Ca.
Re: $7.00 Digital Clocks Have Battery For Memory Backup, Why
A dozen TV's later..... Yes, it would be better to add in a UPS and tap it into the power line for a temp hold power, assuming there is no draw other than the TV? <p>You can tap into each TV module that controls the channel, mem, etc, but a dozen times this becomes tiring after the first five or six? <p>A thousand watt might even run the fridge, freezer, and what ever that happens to be running when the power goes off? Doubt it? <p>Problem either way,.... Is where to power it so that the house doesn't try to run from such a small back up temp supply? <p>6 of one, half dozen of the other? Either way, <p>You have your work set out for you?
Re: $7.00 Digital Clocks Have Battery For Memory Backup, Why
OK Chris, you've convinced me that creating
a circuit to hold the memory settings in a
TV is a job best left to the manufacturers.<p>In my parent's neighborhood power outages
occur at least once a month, but they never
last for more than a hour or two.<p>I got the idea of using 50-to-100 watt
inverters (I've seen'em for as little as
$20.00), so I wouldn't get that monthly
call asking me to come over and reprogram
all the TV's!<p>Don't get me wrong, I care a great deal
about my folks, and hope they're around for
along time to come. I was just trying to
think of a way to avoid my monthly TV
reprogramming duties!<p>Thanks Chris.<p>WildBoar
a circuit to hold the memory settings in a
TV is a job best left to the manufacturers.<p>In my parent's neighborhood power outages
occur at least once a month, but they never
last for more than a hour or two.<p>I got the idea of using 50-to-100 watt
inverters (I've seen'em for as little as
$20.00), so I wouldn't get that monthly
call asking me to come over and reprogram
all the TV's!<p>Don't get me wrong, I care a great deal
about my folks, and hope they're around for
along time to come. I was just trying to
think of a way to avoid my monthly TV
reprogramming duties!<p>Thanks Chris.<p>WildBoar
- Chris Smith
- Posts: 4325
- Joined: Tue Dec 04, 2001 1:01 am
- Location: Bieber Ca.
Re: $7.00 Digital Clocks Have Battery For Memory Backup, Why
If it were only one TV, life would be Easy? You have two bad choices, and must choose the best one out of two. If you can re-route the circuit pannel to cover wall out lets that run TV's only, You could cover a wide base of different TVs with a single or dual units?
- dacflyer
- Posts: 4751
- Joined: Fri Feb 08, 2002 1:01 am
- Location: USA / North Carolina / Fayetteville
- Contact:
Re: $7.00 Digital Clocks Have Battery For Memory Backup, Why
heres a even easier idea,,i have same problems too so i solved the problems with plain ol computer back up power supplies,,,
i got a ton of them free,,,all they needed was just new batteries.. they last about 1-2-3 hrs depending on load.. and i got one on my entertainment center
and one on my stereo /tv/vcr in my bed room,,,
i haven't had to reset the clock on my microwave no more either,,,or any other clock in my house for over 2 yrs now,,except for DST. adjust...
just a thought i wanted to share
i got a ton of them free,,,all they needed was just new batteries.. they last about 1-2-3 hrs depending on load.. and i got one on my entertainment center
and one on my stereo /tv/vcr in my bed room,,,
i haven't had to reset the clock on my microwave no more either,,,or any other clock in my house for over 2 yrs now,,except for DST. adjust...
just a thought i wanted to share
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