Is it a feature or a bug? At least I found a way to get the picture back...
COBY LEDTV1526 15" LCD TV: PICTURE BLANKED OUT

This TV has a strange symptom. When ENERGY SAVINGS mode is selected
from the menu or by pressing the P-MODE button on the remote, the
picture blanks out. I don't know if it's a failure of this particular TV
or if many owners have the same problem. I emailed the factory and was
told it had a problem and was instructed to send it back. I decided not
to return it for this minor problem as I know from experience I might
not get it back repaired, or worse, I will get some other TV with
another problem to deal with, perhaps something even worse. Such
"replacement" TV's are called "refurbished" or "repacked". I didn't want
to gamble.
There is a remedy for the problem of picture blanking but no cure
for why it blanks in ENERGY SAVINGS mode. That, I believe is a fault in
the programming of the system control circuits inside the TV. Perhaps a
firmware update would cure it, but I don't think it's important enough
for me to risk that either. I just avoid that "feature".
I accidentally entered the ENERGY SAVINGS mode of my TV soon after
purchase and the picture blanked out but there was still sound. That was
confusing because the blue LED at the bottom of the screen was not lit
and I thought the TV had shut down or failed somehow. I later learned
that "LED off when TV is on" is normal for this TV. The LED is only on
in STANDBY mode: TV plugged into AC power and turned off.

It's helpful to know how this TV works and how you might
accidentally enter the wrong mode and think your TV has failed. I'll
run through some of the things the book doesn't tell you...
When you plug the TV in to AC power, listen for a click from the
speakers about ten seconds later, and another very faint one a few
seconds after that. The TV is now in STANDBY and the blue LED at the
bottom of the case will be lit. Pressing the power button on the TV or
remote will brighten the blue LED for a few seconds, then that LED will
go out and the TV will turn on. Who dreamed that one up? Stupid!
When you are viewing the TV, repeatedly pressing the P MODE button
on the remote will toggle through the various PICTURE settings, the same
as you can select in the MENU: they are THEATER, SPORTS, CUSTOM, VIVID,
STANDARD, ENERGY SAVINGS, and back to THEATER. Each will brighten or dim
the picture to suit your viewing preference. However, instead of dimming
the screen in ENERGY SAVINGS mode as expected, the picture blanks out on
my TV! To get it back, I pressed the P MODE button again. I now leave
my TV in STANDARD mode.

Now the problem: If you enter the MENU and select PICTURE, then MODE,
then select ENERGY SAVINGS, the picture will blank out, but in this case
it memorizes the setting for that source! It will remain blanked and you
can't see the MENU to correct it. The only way to recover from that is
to do a factory default reset. Press the SOURCE button on the back of
the TV (not on the remote, that doesn't work) to toggle to another
source even if nothing is connected to its input. That will bring the
screen back so you can re-enter the MENU, select SETTINGS, go to RESET
TO DEFAULTS at the bottom of the screen, then select YES. That will
return all the sources to the factory default STANDARD picture setting.
The sources, by the way, a TV, AV, S-VIDEO, COMPONENT, VGA,
HDMI/DVI, and back to TV.

Ray Carlsen

It's a feature designed to get you to buy a new TV.

On Fri, 15 Mar 2013 20:52:11 -0700 (PDT), wrote:
It's a feature designed to get you to buy a new TV.

But, certainly NOT the same brand?