Many modern video devices use a blue screen to indicate that the device is on but that there is no video signal to display. Older devices commonly used black, but the problem with that is it's harder to distinguish between "the screen doesn't work" and "something else isn't working."
The HDMI cable should be plugged in to an HDTV. If you have a Laptop or PC with a HDMI plug slot on it is also so it can be plugged in to a HDTV and is an out HDMI PLUG SLOT like the one that is on the PS3. Some HDMI cables that are sold are of low quality and do not work, stick with brand name cables that are not purchased from highly counterfeit sources in overseas locations.
it is a cord that lets you see what ever it is plugged into in high definition
That depends on your TV. The PS3 for my HDTV has to be on an HDMI input that it is plugged into and not a channel. Then I added a Home theater and now it is plugged into that and the Home Theater HDMI is plugged into the HDTV HDMI input. Some TVs use 3 and others can use 99 or 98 others use aux setting
Yes. The HDMI cord or HDMI plug at the PS3 end in the A/v cable allows the PS3 to have Audio and Video. How can you say a PS3 is working without Audio and Video
Does your TV have HDMI, Blue Ray players mostly work on HDTV's with HDMI cable input. Once plugged in make sure your blue ray player is working correctly try turning it on then off again, and after that, if it still doesn't work It might be the disc.
Monitor is not plugged in or monitor is not plugged in to computer
Nothing, as HDMI is an input port on an telly, not an output port.
You can not sadly. The reason is that when you switch from HDMI to your computer input, and you have a composite plugged it, the Xbox detects that the HDMI is no longer in use and it will automatically switch over to the composite, however the Xbox restarts when it does this.
Nothing
No need. HDMI is another plug and has nothing to do with SCART.
I plugged the HDMI cable into the HDTV and into the PS3. Then I went to the settings for both the HDTV and the PS3 slim and set them for HDMI and sync. When it works right putting a disc into the PS3 will turn on the HDTV and also switch the HDTV over to that HDMI input rather than a cable box or similar item even if it was on the cable box when you last used the HDTV.
You need to turn your HDTV to the HDMI input the PS3 was plugged into. The HDTV will only switch automatically when you turn your PS3 on after the HDMI system settings have been set up on both your PS3 and HDTV and only the slim PS3 have HDMI sync