Tom,
The TCON interfaces the LED/LCD screen with the main board. The color is controlled by the main board. I don't believe it is the TCON. Parts for that unit are getting hard to find.
SOURCE: RCA TV lost Color
It sounds like your grandson found the "monochrome" setting in the menu on your remote. It may be in the "picture settings", "set-up" or "advanced" setting.
SOURCE: My componet/av only shows black and white on my vizio vp422
The 37" Vizio I just bought has a very confusing feature where the same input can be used as either the Y channel of the component or the full video channel for composite. If you plug a component source into the TV and then select the composite input ("AV" on the remote), you will see a black and white version of the full component signal (makes sense as the Y channel is just the luminance component). As sad as it is, I was stumped by this for a while until I happened to hit "COMP" and got full color. FWIW, the manual warns about this, but it really doesn't emphasize the point. I wonder how many returns they get because of this.
SOURCE: picture black & white menu color #26mf231d/37
I have the same problem too. Need a fix. This tv isnt that old and is not used that much. does not seem to be the cables or cable box. the menu has color to it but the channel picture is in black and white, flickers a bit, and seems to be in a very large pixle form. it this able to be fixed? Please Help.
SOURCE: Suddenly no picture only a
Look through the ventilation slits at the back of the TV with the room lights out. If you do not see white light light bleeding through the back, you have a back light failure. It could be the inverter circuit which lights up the CCFL ( cold cathode fluorescent lamp ). You will need professional help to replace it and could cost you about 70 to 100 $ to fix.
SOURCE: Why is my vizio tv's picture black and white?
it could be your flux capacitor is out. you might need to plug it in goto menus and check to see if ur runnin 21 gigawatts if not leave it plugged in and off for two days and it should refresh it
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