Picture is not very clear and the color is faded and can not adjust it

It is most important when inquiring on this site to please include a model number and make of the product that you are asking about.
There are so many thousand of TV types out there that a general question like your just can not be answered without more information from you.

Please elaborate on the color not working:
1.Is the picture clear just the color shift is off, or is the picture like watching a black&white Tv?
2.If the colors are just faded, non-contrasting, come and go, go into the programming section and reset adjustments to achieve the desired picture.
3. For colors that fade in and out ( come and go ) absent any information as to the source ( cable, antenna, satellite ) check all source connections, disconnect and reconnect while keeping a an eye out for loose, damaged, or dirty/corroded connections.
4. If determined that that the television does have a component fault, I question the mother board designation as these units have several compartmentalized card/boards. Replacement board availability and location ( as I do not know your location ) is available from :

http://www.jvcservice.com/Service/

Sincerely,
Doc Michael

may be the channel reception is bad.try adjusting the colour,brightness and contrast levels if problem is not solved contact the customer care

To adjust color first of all set contrast and color controls to minimum,adjust the brightness to see clear picture than add contrast to get perfect black and white picture than add color to it for a good quality color picture.

Dull Video...

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

Convergence

* Screen Looks 3D, Warped, Distorted, etc
* Colors do not line up
* TV may shut off - and make a chirping sound.


You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

the dull and faded color could mean you need to change the coolant.
you could also try and adjust your convergence.

Likely the picture tubes are getting weak from old age. Not much you can do about this.

if it is a tube type unit you may not find a new tube they are almost extinct ,
also, most tube malfunctions are caused by improper voltage, only a qualified tech should work on the high voltage section of a tube tv,,, it can kill you even if it has Not Been Plugged in for a whole year

re-post with the make and model number for further assistance

try setting your menu;s to adjust the picture settings

update the firmware/software if possible. my 60" has a USB slot on the right side. also you can download the manual from phillips http://www.support.philips.com/support/html/index_us_en.html#../~scripts/xsltransform.asp?url=http://www.sms.philips.com/catalogue/list?sid=SMS||type=CONSUMER||locale=us_en||mode=cats||item=TV_GR&xsl=subcatalog.xsl
my phillips 60PP9200D/37