Video issues Video won't light up, audio works, on all channels and inputs 42" plasma TV model z42px2da

where is the video feed coming from? did you try a diffrent cable? can you change the channel at all?

this is a monitor plasma tv and it will need some type of tuner to bring the cable channels down to the audio/video jacks or the composite video jacks(blue/red/green) you can use a cable ready vcr to input the video in tv jacks and hook up the cable in to your vcr rf input.

Since your TV only has audio and video input jacks, you can connect those to audio and video output jacks on the VCR. Now connect the coax cable to the RF/ant input on the VCR and you'll have to change channels by using the VCR channel selector.
Let me know if you require further assistance.

the mainboard, controls the audio, Tv Tuners, Vga , HDMI, S- Video inputs.

The Y sus or (Y-Mainboard ) Is used to control the Panel (LCD) Video, it has 2 buffers that contol h/v lines in upper & lower regions.

Try this to get more information that will help diagnose the extent of the problem:

get a powerfull flash light
turn the tv on in the dark and point the flashlight right at the face of the screen and look for video..

make sure you have an active input or good channel selected..

if you see video where the flash lights then your cold cathode flourescant backlight is not working and this repairable at a reasonable price

TV doesnt matter, you need to list what kind of VCR your trying to program with.

if you are programming from cable, the cable box, box or not, should be ran thru VCR then VCR to TV.
to record. easiest.

if you are doing cable to tv to vcr. make sure that tv is in one of the AV spots, so when you select input on vcr itll show your tv again. program as accordingly.

First, is the DVD player output (Video out, audio out) connected to the TV input? Have you used the Yellow cable from  DVD video out to the TV video in? Mixing the audio and video cables will result in no signal. Have you selected the proper input with your TV remote control. Most plasmas accept a variety of input signals; you must select the right one. I deal with a number of these issues. Usually the connections are made improperly or the correct input source is not selected with the TV remote. Put a DVD in the player and press play. Be sure you have made the proper connection from DVD player video/audio out into an auxiliary or video input on the TV. These could be labeled Line 1 or Line 2.  With the DVD playing, run through the input options on your remote control. The button might be marked source, video or input. The screen should display your choices i.e. video 1, video 2, etc. When you see your DVD program, you've got the right combination.

try checking what your dvd is set on ie rgb pal or nstc, then check in your tv manual what inputs it accepts

check your connections again, if you have the audio and video reversed you will get this exact problem no video/ fuzzy video, and squealy noise out of only one speaker (other will likely sound correct) You're watching the sound channel, and listening to the video channel basically... hehe