Tv won't turn on -no power

Good day!!!

if you have power problem without blinking lights or standby lights (red) the possible problem is power supply board..However if the TV have blinking or standby light but won't turn ON..there are multiple cause of that and need further troubleshooting..

First: service manuals http://elektrotanya.com/?q=showresult&megnev=lg&megnev2=32lc2du-u3%20&kategoria=tv&kat2=all
Second: most failure in power supply module is due to bad caps with domed top, you should inspect for that first, main AC fuse for main power.
Did you take out or look at the power supply yet?
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: 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.
Please post back what you find.
Please leave rating if it helps.

Please see my answer for similar question at
http://www.fixya.com/support/t4745426-power_blue_light_but_screen_black

The 32lc2du inverter is 6632L-0208B and I have seen units where it was the power board and others where it was the inverter.

Hope this helps!

www.coppelltvrepair.com

Ur power board have dead capacitors.U Know how to solders?Take the tv aparts,check these capacitors in the power board for dead capcitors like puff up or burst open.Replaced these capacitors to get power back.Or buy and replaced the whole reburbish power board at Shopjimmy.com,Ebay.com.

LG will sell you a new lamp. It may resolve the problem but just as likely it's the contacts where the lamp unit plugs to the TV. There's a few types of connectors. The early ones are dodgy and cause the problem you describe. A faulty lamp can also cause it though.

bad main pcb

Here's an excerpt from the Sony Manual online. And the link - http://esupport.sony.com/US/perl/webtree.pl?template=EN&mdl=KDF55XS955&content_id=68&category_id=11&problem_id=52

The POWER/STANDBY (red) indicator flashes three times
If your power/standby indicator is flashing in a pattern of three flashes, this may indicates that the lamp cover is not attached securely. Follow the directions in the Operating Manual under changing your lamp that related to closing and securing the Lamp Cover. Ensure that the Lamp Cover Door is securely fastened by tightening each screw.

The POWER/STANDBY (red) indicator flashes continously
If your power/standby indicator is flashing continuously, and the lamp cover has been secured, your TV may be in need of service.

The POWER/STANDBY indicator is lit up green (not flashing)
A sustained green light indicates your TV is on.

The POWER/STANDBY indicator is lit up red (not flashing)
A sustained red light from your power/standby indicator simply indicates that your TV is in standby mode. This shows you that your TV is ready to be turned on with the remote.

Is it the power light and not the lamp light? If the lamp light is flashing then replace the lamp.

I have had this same problem twice in the past 3 months. So far both times I've been able to get it back after a week or two. I'm not sure what works, but unplugging and detaching the antenna and cable and waiting a few days seems to be the key. In both instances, I unplugged it for a few days then plugged it in for a few days and repeated the processes until I eventually got the steady red led. Both times prior to the red led the led would flash red then green and make a clickiing noise for several hours before I was able to get it working again.

I would need the model number to look service codes

It is the power supply. Replace the C97, C19, and C16 Capacitors with 2.2 uF ones.