I have this TV about 4 years, recently when I turn on the TV I see black and white picture and the colors is somtimes flickers. after the TV working on about two hours the colore return and I see great picture, it's happend for the RF and SCART (video) inputs. If I change the input signal from PAL to NTSC (change the dvd or satellite receiver definitions)I will get a nice color picture, It seems like the TV does not detecte the input signal even though it config to PAL method and only after it warm up it start to detect it.
Do you have any idea how this problem can be fix?
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There are different types of color settings and systems - NTSC, PAL and SECAM. Are you sure the correct one is selected ? If yes then the problem is in the decoder and must be replaced since the chip cannot be fixed. This is a job for a pro.
there is a circuit in the color section to put the tv to black and white if the color subcarrier is missing from the broadcast signal.
it is called a color killer and needs to be adjusted.
it is for a technician to do.
it operates off the 3.58mhz color subcarrier.
In black and white? If there is a red and yellow, white and yellow, or red white and yellow on the tv end make sure the colors are matched correctly. Try on channel 3. Try on another tv. Is the camera from a foreign country? (Might be PAL, not NTSC.) If so, there should region menu in the camera to change this. For video, you have to shoot it in the mode of the TV you want to watch it on. North American TV's are NTSC, so shoot with the camera in that mode. If you shoot in PAL mode, a north american TV will show a black and white rolling picture. Just about everywhere else in the world is some version of PAL.
Perfect picture on TV, DVD and VCR, but no color means you have selected the wrong color system.Since you are in the UK, make sure that the VCR Color system is also set to PAL. Perhaps it is wrongly set to SECAM?