This DVD player worked fine for years. Lately, however, it sometimes loses color and plays color DVDs in black and white. A DVD sometimes even goes from color to black and white and back again while viewing. There is no pattern to this that I can discern. Is there a way to fix this?
If you are using S-video cables for your video, try replacing the cable. svideo has 2 lines in it, one for color (chroma) and another for brightness (or black and white-ness (lumina)
if one of those little pins is broke, or missing, or the cable is bad, this may be the case.
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Some inputs on tvs won't process the color signal. Try one of the other inputs. Mine does the same. If u have already used the working ones on something else, U will need a switch to select one or the other available at Radio Shack if u can find one.
First try a good quality dvd cleaner. If that does not cure the problem then the video cable may have went bad. I had a system that the cables were never touched & after a few years it needed replaced in order to get my picture back. Hope this helps & please take a moment to rate my answer. Thanks.
Since you're using a composite cable (yellow RCA) that carries both luma (brightness) and chroma (color) information, it's not the cable that is the problem.
That means it's either the DVD player itself, or the TV. If you have another video device (VCR, etc) that you can connect to the TV, try that. If the other device also goes from color to black and white, then it's your TV. Otherwise the problem is your DVD player.
Since your TV only has mono audio (white RCA, but no red) I would recommend getting a new TV if the TV is to blame.