On Nov 23, 1:47 pm, wrote:
Set turns on and may work normally for a few minutes if starting from
cold. Lamp goes out, colour wheel spins down, audio remains, lamp

Ballast? What voltage do you have on the lamp? As it nears 125
volts, if I remember right, it is telling you the lifespan is about
over. I think new is around 75 volts getting higher as it ages.