My JVC TV 55" lost sound all of a sudden. All else wotks great but cannot get sound to work. Tried menu/vol/power button combo on tv buttons but blue light won't come on, only red light stays on. Ideas?

SOURCE: TV lock on

Try this for 2402s

http://www.retrevo.com/search/v2/jsp/downloadPage.jsp?doc=71c9242585ab36d831a426f43d10b975&q=Apex+AT2402s

SOURCE: Hitachi 55" Plasma HDTV, 1 yr old, suddenly lost picture and sound, but power light still on.

It sounds like a shutdown circuit is being activated. This is normal in cases where the power supply id drawing excessive current. I would suggest that you get this looked at by a qualified professional. This is because this problem may be in the power supply and the voltages can get dangerous in this section of the TV set.

In any event if this is a power supply problem chances are the technician will just have to replace the power supply. Which should cost from 150-250 dollars.

I hope this helps

Shuttle83

SOURCE: all buttons on tv stopped working only turns ON no ...

There is a button lock in the menu of the television. Using your remote access the menu screen and unlock the buttons.

SOURCE: TV won't turn on after a repair

you changed all the eprom info but didn`t "save to ram" before un-plugging ac cord, you will have to call a tech and be sure to advise him what you have done so the tech will be sure to bring service manual, info will have to all be re-entered, video-tek

SOURCE: On/Off blue light blinking, TV won't come on.

Ur power ic inverter board is dead.
U need new one.

Testimonial: "Thanks for the advice. Will try it."