Where can I buy ballast power supplies/parts and/or schematics for my Infocus X2/X3 and Ask/Proxima C180 projectors (hopefully at reasonable cost)? I have several that have blown the internal fuse. Some have blown/shorted some output FETs, but still have problems. Some power up the projector, but won't strike the lamp.
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if you take the lamp door off, pay attention to the "peg" on the lamp door to see where it depresses the safety switch. if you look it is a silver metal lever that this peg pushes in. plug the unit in and find something no conductive to push and hold the lever in. while holding the lever in push the power button. if the unit powes up then that means the lamp door has distortion from the heat of the lamp. you can try to find another lamp door, or you can get creative and find a way to meld some more plastic to the length of the "peg".
take the lamp door off and manually hold in the safety switch.(if you look at the lamp door and see the post, the post is what pushes the switch in normally) while holding the switch in, push the power button. try the button on the projector and the remote. if the unit powers up it means your lamp door is miss-shapen from the heat from the lamp. if this didn't fix you problem, you need a power supply.
if the lamp is new, it could be the power supply (the ballast is built in to the ps). but make sure you have the right lamp. the X1 and X1a have an sp-lamp-019 and the similar X2 and X3 have an sp-lamp-018. the lamps are almost identical except for the wire configuration on the lamp plug. make sure the wires in the plug match the positions in the socket. also, when you turn it on, if you don't hear a high pitch squeal, the colorwheel is not working. and if that isn't working, the lamp won't either. also check to see if the lamp door is closing properly and hitting the switch at the top of the opening.
the caps dry out. look for bulging caps. you won't find a schematic for the ps boards. infocus had someone else make them. the problem seems more like a overheating issue. as for the other one with the "just the fans", check the colorwheel.
you have to go to an infocus authorized service center. you may be able to purchase it from them without having them put it in. check the infocus website for an asc. but for reference, the part # for the ballast/power supply is 520-0126-00 if there is a "0" in the 5th to last position in the serial #, and 520-0143-00 if it's an "a" in the 5th to last position.