Panasonic VIERA TH-50PX25 DVD offset and blue color My DVD or VCR is offset on the screen ... ...

You will have to set the HDMI input to the port you plugged the Roku in. From there, you should be able to see the program screen.

Contact Panasonic Tech support. Also try to do a Google search.

Start with an inspection of the power supply board itself, look for puffy caps or damaged parts.

Check the blue and green plugs on the component cable. Make sure the are pushed in all the way on the back of tv and device (cable box, dvd player, etc.)

Ur tv is missing a blue color.U tv might have a bad incomming broadcasting signal cable.Try watch a DVD movie,to make sure,if u have all three colors guns like R,G,B on the tv.If DVD movie have the same problems,than ur tv have a dying tv Tuner signal board,that take in the incomming broadcasting signal cable.

Either LCD transistor got moist or the video chipset got condensation. Keep TV on standby to dry it out. Unless there is also mechanical damage to the lcd screen on the edge..

just throw your tv from window

PSU FAULT BAD CAPS

Make sure you have the power button turned off on all of your DVD, VHS etc. players. I bet that blue screen goes away! Let me know and...
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vga board is bad ot the components on it are blown out.