I have a norcent 37 no picture model LT 3751 BUT POWER LIGHT GOES ON

This is the picture of the T'Con board in search I thinks. To buy it, enter into this site, and make an order.
www.ebay.com/itm/Norcent-LT...T-CON-Board...-/130557085004

Hello Jason:
Check the inverter board for blown fuses in will be a micro surface mount fuse, if it is blown then replace the inverter board assembly. The inverter is used to light the back lights of the screen. Also check the supply voltage from the power supply to the inverter should be between 12volts to 30 volts.

Also you if the inverter board checks ok , then your problem lies in the T-Con board this board is at the top to the panel under a shield.

Do you have 24vdc output from the power supply which will be used by the backlights inverter boards to produce the white lights on the back of the panel?
Please read my guide to understand how the TV works first and will help you what to look for.
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
Parts: http://interliquidparts.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.

Hello there,
If you are having sound but no picture, or the LED light comes on and nothing happens. Then there is a problem inside the unit of the tv. The problem lies within the Tcon board and bad capacitors on the PCB.
Have the tcom board replaced with the power control board assessed for bad capacitors. That would solve the problem for you.
All the bestElect_Comp

Hi, Alot of these LCD TVs are having no picture problems. It is due to a bad power board or supply. If the TVs are still under warrenty you can get it replaced for free. But it not you will go to a technision for repair.$$$

Make sure the power cable is plugged into the T.V. and the wall outlet. If it still doesn't power on try a different outlet. If that still doesn't work then there might be a problem on the board that needs repaired.

If you were to log on to the manufacturer's web site, I think you will be pleasantly surprised as usually one is able to download, by model number, Customer Instruction Manuals, list of Dealers for spare part supplies as required.

The information is normally free of charge.

I hope this helps.

if you have audio then the backlight is not working

Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

We have ten LT-2722 with similar power problems, at beginin the monitor turn on and off after few minutes or hours, then no turns on at all. But the problem is not at the Power Board, is a bad contact or damage in a integrated circuit U403 (GM1501-BD) at the Main Board, unfortunatelly this IC´s pins are unaccessibles so you must replace the all Main Board (Part Number CBPFF84KMGNCT)
Good Luck.