No power turned it off last night, was working fine. Tried to turn it on this morning, nothing, changed batteries in remote still nothing so tried to turn it on at the panel, still nothing. It is only a little over a year old. Emerson, 40inch, hdtv lcd 1080p

SOURCE: Samsung LN32B360 32" LCD HDTV (Black) DOES NOT POWER ON

Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. Or, it maybe something simple like a blown fuse inside the TV. But, I can't say it's 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptoms.

You have a few choices:
1. You can try leaving the TV unplugged for 30 - 45 minutes so the TV can discharge and reset itself.
2. If by chance the TV is still under warranty, go that route.
3. If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15.
4. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.

I hope I shed some light on the subject for you.

Ginko

• 19396 Answers
• Posted on May 30, 2009

SOURCE: Tv wont turn on worked fine last night

If there is no power at all, then the problem is likely the power supply unit.
The PSU must be tested, then eventually replaced.

SOURCE: My LG-37" Flat-Panel LCD HDTV-37LC7D turns on automatically

The main board needs to be replaced.

SOURCE: Worked fine lastnight but this morning when I tried to turn it on there was no picture, but there is sound

TRY UNPLUGGING IT FOR FIFTEEN MINUTES THEN REPLUG IT IN,KNOW IT SOUNDS STUPID BUT WORKS SOMETIMES

Bud Martin

• 11361 Answers
• Posted on Jun 07, 2011

SOURCE: I have a Sanyo46" LCD

Unplug it for baout an hour to let it reset itself first, if it still does not work, then read on.
The power supply module may have gone out, it can be as simple as blown fuse, or failed DC filter caps. You need to look inside or have it repaired.
Please read my guide first:
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.