[lionheartck]

I have a Samsung HLP4667W DLP.

I got it from my friend who bought a new TV once his started making this loud humm.

It also flashes all three lights on the front power button indicating that the bulb needs changed. I changed it. The 2nd cause of the 3 lights is a faulty ballast. I changed that too.

It still makes the humm, and will not come on. The bulb does not light up at all. I can see the color wheel, and it seems to be intact, and spins normally. Please help, I don't want to replace any more parts that won't fix the problem!!!

I have a multimeter, and have a basic understanding of electronics. I am willing to trouble shoot this however I need to. There just aren't any good resources aside from "change the bulb"

 

[magnethead]

I have a Samsung HLP4667W DLP.

I got it from my friend who bought a new TV once his started making this loud humm.

It also flashes all three lights on the front power button indicating that the bulb needs changed. I changed it. The 2nd cause of the 3 lights is a faulty ballast. I changed that too.

It still makes the humm, and will not come on. The bulb does not light up at all. I can see the color wheel, and it seems to be intact, and spins normally. Please help, I don't want to replace any more parts that won't fix the problem!!!

I have a multimeter, and have a basic understanding of electronics. I am willing to trouble shoot this however I need to. There just aren't any good resources aside from "change the bulb"

have you checked temperatures?

We have aDLP, apparently 1st and second gen's are notorius for issues. the new ones use LCD projection instead of the color wheel.

 

[lionheartck]

It doesn't come on long enough to heat up. As soon as I plug it in, it starts the humming noise. I did some more searching, and it sounds like the only 2 moving parts in it are the cooling fan and color wheel. The color wheel is supposed to be a high-pitched whirrrrrrr... I'm going to take it apart this weekend, and see if the bearings are bad on the cooling fan.