We have three projectors that recently stopped working and we are not tech savvy and are unsure if the bulbs need replacing. The all do the same thing we plug them in, turn on the on off switch and press power button and nothing to fan, blinking lights, or anything. We are hoping its a simple item as a fuse replacement. We are a non profit training center and these were donated to us for classroom use. And replacing the bulbs is outside our budget. So if these have any value to anyone we would like to sell them to help cover the cost of a replacement bulb for one of them. The units below do not power up. Proxima DP 9250 Nec LT 100 Nec MultiSync LT 84 We will sell for $50.00 each for parts if anyone is interested.