This Plasma 42" TV has 2 speakers (output of 200 watts) with SRS Trusurround XT. It has 100 programs or channels with features like PIP (1 tuner), auto-off, auto sound leveler and OSD. It has Dynamic contrast ratio of 10000:1 and 1500cd/m2 of brightness. It has VGA resolution of 852 x 480 pixels. This set comes with 2 Composite, 1 S-Video, 2 component video input, PC Input and 2 HDMI Inputs.
Make sure all cables (HDMI, component, etc.) are securely plugged into both the TV and the device (such as a cable box, game console, or streaming device) that you are trying to watch.
How do you have "only black screen" and know that "signal is not available"?
That is info displayed on the screen so it can't be all black.
por bill