Hi, I have bought an used Mistubishi CS-35405 TV a month back. The picture came in color for 1 week and after that the picture is coming in black and white. However the controls text like volume, menu and...
Hello Mr Kumar
According to you, there was colour displaying on your TV, and it has gone for now. It is now displaying picture in pure black/white also. Since black/white, picture is Ok, there is no problem to your picture tube. It now doesn't get chroma signals. That is the problem.
There are many reasons for this fault. The first one is related to Its RF stage, that is Video IF and Tuner stage. Since picture is correct in bl/wh, tuner has no problem. Your TV has PIP functions also. You just do this one first. Tune to a station with manual tuning, and advance the tuning process till the station goes out, and try to see, at any point during this process, you gets colour or not. If you get colour in this way, your TVs tuner has some problem. Before doing this keep the antenna corectly. If antenna is not in correct position this type of fault will occur. If these two won't help, the problem may be to its Chroma IC. If so this Ic should be replaced. You just do these things first and inform me about the progress through Fixya. I've its schematic diagram and can give you the number of Ics used in different stages. But I can do it only through Fixya. I can't send it to you diretly, since it is against our terms and conditions. Since the TV is a used one we don't know its present condition also.OK.
Oct 29, 2010 |
Mitsubishi CS-35405 TV