My samsung hl61a750a1fxza only has blue and green picture only, why?

SOURCE: Sony KDF60-WF655 Picture has a blue tint

Sony has decided to cover this cost even without warranty.

SOURCE: samsung big screen tv model pcl542r has a green or red tint to picture

do you have a service manual for this tv because it may be your red drive circuit and you need to trouble shoot it if you don't have a service manual for your tv I will post a link where you can get one plus free online tech support to help you troubleshoot this problem
http://servicemanuals.vstore.ca/

SOURCE: Sony Wega 50" DLP bluish tint

the issue is the optical block. replace the optical block

SOURCE: While watching tv a moment ago the screen began to

Hi,do you hear buzzing,whirling or high pitch sounds? if you do it could be an issue with the color wheel If the TV have the infamous blinking lights problem and you're replaced your lamp without success, it's most likely a problem with your color wheel. The Samsung color wheels spin anywhere from 6,000 to 15,000 revolutions per minute (RPM’s)--It is one of the few consumable parts in your Samsung TV. The average life expectancy from our data logging shows the Samsung color wheels are fairly reliable with a MEAN average of 5-8 years .It could also be the DMD board this is how it works:http://electronics.howstuffworks.com/dlp1.htm One simple way to test if it is the DMD board it's to display thew menu,if menu is also affected that for sure what it is.God bless you!

SOURCE: BLUE TINT ON MY SCREEN

Philips tv's have always had this problem. Between the picture tube and focus lens there is a layer of coolant fluid. The coolant fluid, over time, will break down and turn a brownish cloudy color and it usually starts with the blue. Something to do with the color frequency. Have a good repair shop check it out and if the fluid is the problem have them change all the fluid in all 3 picture tubes (there is a red, green and blue tube). Don't feel bad, like I said all the philips projo's had this problem. Thanks