60"rca projection tv has no picture

my rca home theatre projection tv model#P60752EB,chassis#PTK169PEC has sound,but no picture,the screen is blank and their is no OSD(onscreen display).all 3 picture tubes are lite up,but the guns are not diplaying a picture.the (what appears to be a resistor)positioned diagonally to the left side of the flyback transformer is blown,its light blue and has 4 bands (red,black,black,red).is this my problem?it is not located on the schematics.what is the blown resistors description and part#.any help would be appreciated