Monitor screen turned into pink. i am having a 56v samtron color monitor. my monitor's entire

Question

i am having a 56v samtron color monitor. my monitor's entire screen turned into light pink color n only some colors like red,black,white,blue appear.others will be in pink or orange.First when i got this problem i used to hit the degauss button 2 to 3 times and the screen becomes normal.but now there is no use of that degauss.please tell me should i change my monitor or it can get repaired.thanks in advance...