On 2/19/19 5:58 PM, micky wrote:

[[snip]

I can't use radios with electronic tuning because with a timer that
turns the power off and on, when it comes on, the radio doesn't start
until someone pushes a button.

I also find that "power amnesia" to be an annoyance. For most of the
settings, modern devices use permanent memory. Often, they exclude the
"power' switch.

BTW, For TVs, I notice that many smaller ones will remember, and can be
used with a timer. Bigger TVs are power amnesiacs.

--
Mark Lloyd
http://notstupid.us/

"Common sense is what tells you that the world is flat."

Mark Lloyd Wed,
20 Feb 2019 17:33:12 GMT in alt.home.repair, wrote:

On 2/19/19 5:58 PM, micky wrote:

[[snip]

I can't use radios with electronic tuning because with a timer
that turns the power off and on, when it comes on, the radio
doesn't start until someone pushes a button.

I also find that "power amnesia" to be an annoyance. For most of
the settings, modern devices use permanent memory. Often, they
exclude the "power' switch.

Most of the time, the power switch is controlled by another board
entirely that's mostly a small transformer, a few circuits, a relay
and access to the hot leg of the ac mains that it passes along via a
closed relay to the rest of the set that does the real work. When you
push the button to turn the tv off, it opens the relay. When you want
it on, it closes the relay. The remote on the tv is doing the same
thing. Sometimes, the IR LEDs are on the smaller standby board and
other times it's located on their own boards wired to it, or might be
sitting on the actual mainboard of the set, but electrically
connected only to the standby board; it just has a physical residence
on the mainboard.

So, there's nothing for it to memorize, and no way to enforce the
memorization if it did, as the standby board is entirely reliant on
human interaction for relay open/close.

The only exception are sets that have additional circuitry to trip
the standby board into closing the relay with pulse signal; this
requires additional circuitry on the standby board as well as
mainboard of the set, wiring, additional coding frontend/backend,
and, space to store the last known 'setting' to enforce when the
standby board has access to ac mains power.

The additional circuitry on the standby board serves to provide a
limited amount of power to the mainboard without closing the relay so
the mainboard can pull the last known setting and tell the standby
board to close the relay, if that was the setting. When it closes the
relay, that's when it's connecting ac mains (the hot leg) to the main
power supply that actually runs everything else. The standby board
has it's own power supply that's always hot if the set is plugged in.



--
Big donkeys, small donkeys, all good to eat.

In alt.home.repair, on Wed, 20 Feb 2019 11:33:12 -0600, Mark Lloyd
wrote:

On 2/19/19 5:58 PM, micky wrote:

[[snip]

I can't use radios with electronic tuning because with a timer that
turns the power off and on, when it comes on, the radio doesn't start
until someone pushes a button.

I also find that "power amnesia" to be an annoyance. For most of the
settings, modern devices use permanent memory. Often, they exclude the
"power' switch.

Yes, exactly.

BTW, For TVs, I notice that many smaller ones will remember, and can be
used with a timer. Bigger TVs are power amnesiacs.

I have a small tv but for various reasons, can't use it.

I'm set up now, though. Thanks all.

On 2/20/19 10:23 PM, micky wrote:
I'm set up now, though.

So, how about after all the flailing around here, you TELL us
what you did/ended up with.

--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com