schematic diagram with service menu

[[email protected]]

Hi!Happi New Year to everybody outhere could you please kindly send me schematic w/ service menu of KOLIN Mdl#KC-21MKEII and KC-21SS1 PROBLEM OF tv :after a few mins.color turned to B/W and starting a vertical sync I change chroma 2x still no progress i put a 12v fan top of chroma(KA2163) a little progress instead of about 10-15mins color fade n sync switch to about20-30mins.Could you please relay me some solution n schema n servicemenu. I will really appreciate your kindness Thanks in advance [email protected]