kgschlosser wrote:That projector has a front exhaust and intake. I believe the intake is on the left. But I don't remember. If you take a 3" aluminum vent pipe found in the HVAC isle at depot or Lowe's. Do not get the slinkeey style one that's like tinfoil or plastic. They cause to much air turbulence. Get the one that is rigid but does expand. Take 4 paper clips and bend them into hooks and pierce one end of the paper clip through one end of the pipe. Do that in 4 places around the end of the pipe. Hook the paperclips to the grill on the exhaust side. With this method the pipe is flexible so you can bend it over the top of the projector and back against the wall and down. And it will keep its shape. And you can also paint it up nice nice. Some of the hammered rustolium would look nice. It also allows for you to detach the pipe easily enough. Total cost.
15 for the pipe. 2 cents for the paperclips and 6 beans for the paint.
Good thing with this is you can install a helper fan in it if needed and hook the fan up to an adjustable wall wart so you can have control of the fan speed by lowering the voltage. Just remember to use a computer fan. And no higher than 12 volts. Every fan is different in its minimum startup voltage. But if you only want it to creep along you may be able to set it to 3 volts. But you will have to either spin it by hand to start it. Ir move the switch to 12 get it moving then move it back down. I do know 100 % this works for 5 volts. Don't know about 3. This is a really nice way to get the internal fan in the unit to stop going like a bandit. And you can put the pipe and fan some place to kill the sound. Like under the sofa.
As far as the buzzer. It's mounted on the main PCB. It's round could be plastic or metal. But usually plastic. Most times they are blue. But it will have a hole in the middle of it with a bit of metal under that hole. 3 - 4 bits of electrical tape over that hole will do the trick for ys
Blue chimney works great.
It is done and it was free.