I have a samsung LN46A650A1FXZA flat sceen led tv. All sources of signal input all of a sudden state "no signal". I tried connecting sources known to be functioning (such as a dvd player) to the tv via rc cables and also HDMI, and no picture show no matter what the source of signal. When I tried a different tv, the various signal sources work fine. The tv has been unplugged and replugged in, and a reset has been performed to no avail.

Josh Whitehead

• 1148 Answers
• Posted on May 15, 2009

SOURCE: External input sources won't receive signal

UNPLUG THE HDMI AND TRY,,

SOURCE: No HDMI on the source list, i have a Virgin Media

One of a few things are happening. If you are connected to the TV via the HDMI port and it doesn't become highlighted then either the main board on the TV is at fault, the HDMI output on the media box is not working (try on another TV if possible) or the HDMI cable itself is bad.

Testimonial: "cheers i will give it a go, the v+ box is brand new, the cable is a cheap one but its also new, virgin supplied it, the tv is at least 2 years old!"

Scott Frye

• 1175 Answers
• Posted on Apr 20, 2010

SOURCE: Using an HDMI cable on my 32

I would call Comcast...they seen more of this than I have

Sorry I couldnt help more w/o seeing it

SOURCE: I have the samsung LN52A550. When I turn the tv on a blue screen appears. I tried changing the source with the menu button but does not display anything. The TV is about 2 years old. The sound works.

Try this
Method one- with set on, hold down the exit button on the remote for 10 seconds. It will bring up the warning it will reset to the defaults it had when removed from the box and powered up initially. in the warning box it will show the cancel button highlighted initially. press the left arrow to select the reset option. You may end up doing this blind, so you may need to try it a couple times and the only indication of where you are is just a slight flash from part of the screen.
Once that left arrow has been pressed once, the reset option choice changes to "Ok" or "reset", press "enter" The set should
do it's thing to reset and then shutdown.,

Method 2
it should get you into the hotel settings, but you can reset to factory defaults from there, changing any other settings may limit access to the normal settings.
Shut the set off.

The while holding the mute, menu and info buttons, trun the set on while holding them down. If the functions portion of the board is working, it should bring up hotel options menu.

SOURCE: suddenly dropped hdmi signal on all ports - sees device but gets

Switch off the TV, switch off power and remove plug and wait for 48 hours and retry.