No sound. Was working perfectly, and has for several years. Powered off last night, then today, no sound. Picture is great.

SOURCE: Samsung 40 no picture

I bought a 40" LNT4061F Samsung Flat Screen 02/15/08 and 10 days later the picture went out on me. I was just watching TV when all the sudden the TV turned off on its own. I turned it back on and got a blank white screen. I couldn't even get the menu to appear. The sound was there, but no picture. I called Samsung for help and they said that they would have to send out a service tech. This all happened Sunday, the 24th of February. They said that I would hear from a service tech in 24 to 48 hours. Well 24 hours is up, I hope I hear from them tommorrow. I'll give an update when something happens so that others may know what to expect.

Bud Martin

• 11361 Answers
• Posted on Jul 07, 2010

SOURCE: I have a Samsung LCD TV LE27S7, 3 years old have

It can either or both the problem with the backlight inverter board, or the 24vdc power supply is dead. Those are the two areas to look first, logic board can be the problem also (not sending the signal to turn on the backlight inverter circuits).
If you are going to DIY and have proper tools and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com