TV- some channels don't have any sound, other channels do

Sound no picture on 50 inch samsung plasma ps51d450a2m - HDTV ...

www.tomsguide.com/.../58009-4-sound-picture-inch-samsung-plasma-ps...

Jul 1, 2015 - 4 posts - ‎3 authors
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No picture or sound in my Panasonic TH-P42UT30A plasma ...

Hello
Just give me the datails about how you have linked this TV. Is it with external antenna or by digital set top box. plaese let me know the exact model number of your 42" Plasma. It is TV-P42X1 I thinks. Am I right?

It sound like you are using a component video connection to the TV, which is of variable specification. Try a different type of video feed from your Comcast box

EASY! ok the 4th video processing unit is malfunctioning, if it is a Piano affect like the keys on the piano, then that can be fixed under your 1year warrenty after your 1year warrenty it will cost $200, but i could be wrong, i never studied panasonic plasma casue they ****, next time get a samsung.

the worst contrast and video ajustments, thats a panasonic.

trust me i am the flat pannel guru!

chake to make sure it is hooked up right and not lose

Help! My Plasma by Magnavox is putting black verticle lines on the right side of the screen - comes and goes - and I replaced the entire Direct TV-HD unit - wires, everything - and had TV company repair - and it still came back. The TV repair refuses to take TV back because it does not show up when they come. Although I videotaped it and showed them which has the date and time - they still refused to take it - and tried to get me to sign a paper saying it was working while they were there - which of course I refused to sign - so they left and nastily said they will not be back-find someone else. I still have the lines - and do not know what to do! Can anyone help?

sounds faulty. contact your retailer.

shut off the all BBE and surround and the AL sound page 27 of the manual.

ysus pcb that supplies voltage to the panel is faulty

Try checking the cable making sure they are tightly plugged in. My dads Plasma screen started showing orange / brown colors in place of primary red... he had been moving things around and didnt realize the wires were loosened in the process. This made him realize.... GET an HDMI and get rid of all the other cables......