It has a blank screen on all inputs - Hitachi UltraVision CineForm 55VG825 55" HDTV

seems to me your back lights may be shot..

Call comcast out for service. Sould like a problem with their equipment which you may not touch..

I a feeling that your computers screen is blank because it is displaying to the TV and the TV is blank because it is on the wrong input. Your TV/remote should have an input or source button which you can use to select the appropriate input.

What you need to do is connect it from both the red/white/yellow cable and your HDMI. Go to your video input on your TV to where you can see the display. Go to settings - Display settings, and switch your input display from composite to HDMI. Your screen will go blank. Once blank, turn your TV to your HDMI input and when you see the picture, save settings and completely unplug the composite cable. You should be good to go.

If this helps, please give me a 4thumbs up!

Respectfully,

Don

Try several inputs. See if you have the sam result. If you are watching with an antenna make sure all is connected and setup is set up.

Try set up if it works on the blank screen that means an input problem.

You may need to change the video input. I'm not sure what type of connection you have, but change the inputs to see if an image appears. It's likely that you're just on the wrong input.

Hope this helps.

MO

Press the menu button on the remote anc change the language setting. Blank screen, you may have to do a full channel scan (also in the menu screen) to search for channels. Lastly, make sure the correct input is selected to the input being viewed ( if the cable is connected to Input A on the bacl of the TV then you need to press the Input button on the remote to select input A (these TVs usually have like 5 different inputs to choose from).

Sounds like the CRTs are going into protective blanking due to the vertical output ic needing to be resolderd. Try resoldering the vertical IC that may possibly fix the issue.

dude just **** ****

Is there another input you can try?