Hisense[gva] modelPDP421 plasma

When the screen cracks on any LED or LCD or Plasma. The only good things left, are the boards. The rest of the TV is junk.

The TV is a plasma screen. There are several circuit boards that will go bad over time that affects the picture quality. TV Parts Universal TV Stands DLP Chips ShopJimmy You can get the parts here and replace those boards yourself.

It might be your Dish remote. There are red, green, yellow, and blue buttons right above the middle of the dish remote. Try pushing the green one. It should let you toggle between cc on or off.

If the overall picture has a pinkish hue to it and skin colors appear to have pinkish blotches. White scenes have a pinkish hue to them then it is is likely the main display board, 6871QCH029A. This board is located next to the Y sustain board. Need to remove the tv from the stand to get to the main display board. I just fixed my Z50PX2D that had the pinkish hue to it by replacing the main logic board. Check ebay for boards.

Hello !

Test with an external monitor. If it works, there is a problem with the display's backlight or inverter board.

If you were experiencing discoloration in the screen (pinkish lower light hues) before it failed, that would indicate a CCFL backlight issue. If the screen suddenly went dim on you rather than a slow degradation the inverter would be indicated.

Hope this helps.

The color red and especially red colored lines or a pinkish hue are indicative of an impending screen failure. The only other possibility is that the data cable on the left backside of the lcd panel may be loose at the socket or on the motherboard. 9 times out of 10 though, it is the lcd panel that it failing.

sounds like the linear adjustment is out of whack.....most projection type tvs, projection, lcd, plasma, have to be correctly aligned so that the color grids overlap each other to properly display the correct hue being created. you'd need the service code to re-adjust it, or have it serviced. also possible that one of the color grids is bad, but if you have all three (red,blue,green) colors showing on the entire screen area i would doubt it

Sounds like a bad backlight bulb. I am sure it will not be that easy to replace.

Panel is nearing end of its life or has prematurely failed

Do a master reset
1. unplug the TV from the wall
2. remove the batteries from the remote
3. wait 24 hrs
4. plug TV into the wall socket
5. install batteries in remote
6. hold power on button for minimum 10 seconds
This was given to me by the Hisense service line and worked for my TV.