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Is it happening on all cylinders? Or just one? Have you removed the injector an inspected it. I have never heard of all going bad at once. It would be a good idea to look for open fuses. The main connector is connected properly, each one has good connection.have you changed something lately?
I apologize if this is posted twice. I looked into the light only coming on momentarily. The light is a LED that appears to be soldered in. To disassemble:
1. Remove the 3 rubber feet from the bottom of the unit - just pry them out.
2. Remove the screws from the holes that the rubber feet we in.
3. Tip the projector out - remove the two screws from behind the projector.
4. Remove the bottom of the unit - should just slide off
5. Pry the front and back apart - there are several tabs that fit together, but with a little squeezing and wiggling the two halves will come apart. This will free up the projector assembly.
6. Remove the screw from the projector assembly, then the front and back of the projector assembly can be pried apart - again, there are tabs that snap together, so squeezing and wiggling are helpful.
7. Once the projector assembly cover is removed, then the projector is exposed for testing and exploration.
I tested for voltage at the LED test points
I suspect that the issue I was researching may have to do with the motor not turning - safety interlock to prevent burning the disc?
Baby needed her music, so I needed to reassemble before I could explore further.
Reassembly was the reverse of disassembly - be careful not to pinch wires when reassembling the projector cover.
You need a smallish phillips head screw driver. Disconnect any power cords.Turn the projector upside down with the front facing you. On the back there is a 3" or so cover secured with one small screw. Remove the screw and the cover. You will see the lamp assembly. On the right is a white cable connection. Disconnect it. On the left is one screw securing the lamp assembly. Unscrew that, then lift the lamp assembly out of the projector housing. Now your options are to replace just the lamp or the whole lamp assembly.
There is one bolt on top of the radiator support and another in back. The assy fits into a pluug that keeps it aligned so it cam be tough to remove. Just wiggle it side to side while pulling and it'll slowly come out.
Are you looking to fix the bulb that is in the corner of the headlamp? You don't need to remove the head light for that. The is a black cap that screws off just beind it.
OK, let me throw out some possibilities. Most projectors how a built in lamp and filter timer. This lets you know when you need to clean your filter or replace your bulb. If left unchecked some models can prevent you from using the projector til the maintenance has been resolved. Clean your filter and refer to your owner's manual for how to reset the timers. If you still get the blinking or red lights after you have reset the timers then you may have a bad bulb or the contacts in the lamp assembly are tarnished or corroded. Pull out the lamp assembly and make sure the leads to the lamp are tight now take a small knife and scratch the metal contacts that the lamp assembly uses to connect to the projector. Clean them well so they will make good contact. Reinsert the assembly, close the case, and try it out. If you do not know how to take out the lamp then refer to your manual as it will have detailed instructions. If your projector still does not work then your lamp is bad and needs to be replaced.
For sure this is caused by failed color wheel sensor. HP redesigned this assembly twice and the last design change worked very wheel. The new sensor assembly comes with new temperature sensor cable, focusing spacer. I am factory trained and I can repair the projector for you.