NO POWER THE RED LIGHT IS NOT ON - Akai PT46DL10 46" HDTV-Ready Television

Power supply failure

And there is nothing to read about it in the manual ?

Maybe its only an obvious problem that the lamp/ bulb is damaged ?

http://www.sonya20tvclassaction.com/main/home.sfx MAKE SONY FIX IT

Most of the time a red internet light means that the box can't find the internet / can't find it ISP / can't get on the DSL what ever.
Might be the modem, might be the power adapter.

The power red led indicates that your device is "power on" , but the status led still red and turn to green if the device ( video input )received video signal ( from DVD player, Laptop etc. ) .

My Sony lost its picture and had a flashing light. Unplugging for 36 hours solved the problem.

yeah, should stay red when unit is turned off, indicating there's power but it's doing nothing.

Per user manual:
Solid red - power off (standby mode)
blinking red - power off (now cooling)
blinking green - power on (preparing to light lamp)
solid green - power on

What red light are you referring to? If you are talking about the red l-e-d power light beneath the screen, that is the power off light. If that red light light momentarily turns green and then immediately red again when you are attempting to turn the tv on, that indicates a bad power supply.

Is the it the power supply red light?

The red light may indicate that the power supply is too hot or is overheated. Therefore, you should let the power supply cool for several hours in a well-ventilated space. During this time, you should not try to turn the console back on to allow the power supply sufficient time to cool. As soon as the power supply has cooled off, the power supply light will change from red to orange, and you can turn the console back on.

If the power supply light is still red after you have let the power supply unit cool in a well-ventilated space, the power supply unit may require replacement.
Also make sure the power msupply is plugged in correctly.

You could also purchase a new power cord.
Good luck
Mick