LCD Samsung tv no picture no sound

SOURCE: lcd tv no picture

I took mine back and they replaced it! Problem solved!

SOURCE: TV No Picture

My 32D40U would turn on for 5-10 seconds (Please Wait would appear) and the screen would go black. Sound Normal. It would also sometimes do this after running 5-10 minutes. I read somewhere that the inverter board would come loose and lose proper ground. I took the set apart, removed the board, and cleaned up the grounding points. I reassembled using some copper paste on the ground points and LockTite on the screws. I used some contact cleaner on all the connectors going to the board. I noticed two cables that are covered with copper shield tape where too tight at their connectors and repositioned the tape to give them some slack. The problem hasn't occurred since the fix.

SOURCE: Samsung LE40R73BD DTV freezing, wont chnage channel

i've just some digging around and found that you can access a service menu and perform a reset which sorted the issue for me.

Access the service menu by pressing, in order, whilst the tv is in stand-by mode:

info
menu
mute
power

when the tv comes back on you will have a service menu; select option 12 (reset) the tv will then switch off.

this will reset your TV back to factory defaults.

turn tv back on and you should be prompted to go through the plug and play setup again - go through everything and then all should start working OK (it did for me)

HTH

SOURCE: TCL LCD TV. No sound on one channel only.

I had the same problem... try toggling through the "SAP" (multilingual audio feeds) for the channel. Mine was somehow set on "audio 3 of 3" for that channel, but there were only 2 audio feeds.

SOURCE: Sony KDL-32S3000 32in LCD TV.

Hi Chris,
I used to have the same issues with my 32S3000 but I've managed to fix it by factory reset.
It's described in a different post here:
http://www.fixya.com/support/t2222933-complete_factory_reset_sony_bravia_kdl
Good luck.
Rob