color wheel/ light bulb error replacement

[Jeff]

If there is a whistling/buzzing noise is that the color wheel and would that prevent the picture from coming on and giving a bulb error message on Samsung HL-P5085w tv.

[darkart77]

The lamp message can be produced by the ballast, the lamp as you may know, doesn't have any sensors "ballast carries the sensor for the lamp but it also detects failure in itself.
Considering the symptoms. I'd say the ballast board is not working properly.