Infocus LP650 projector power problem

Status
Not open for further replies.
The lamp died while watching a movie, but the fans continued to run. I turned it off. After the fans stopped, I tried to turn it back on. Nothing happened . . . no light, no fans, not even the power LED would come on either before or after the power button was pressed.

The line cord is fine. In fact, I can hear a distinct click (the sound of a reed relay opening?) about 1/2 second after I unplug the power cord each time.

So I took it all apart and checked some things. . . . The lamp interlock safety switch seems to be clicking; the over temperature sensor seems to be closed; the two fuses I could find on the power board seem OK; the bridge rectifier on the power board seems OK, and I cannot see any part that is visibly defective.

I also applied power to just the power board. I hear a fairly rapid clicking while the power is applied and for several seconds later.

I saw a 7/08 post from DaGimp relating to a similar problem with an InFocus 600 which suggests replacing the large and smaller capacitors. I can do this, but thought I would seek some advice first:

1. Any thought on what is wrong and what I should do to fix it?
2. Any idea where I can get replacement components?
3. Any idea where I can get a schematic or repair book?
4. Any idea where I can get a replacement power board? (Part #510-1615-06)?
5. Any idea where I can get the projector repaired on a basis that will not cost more than it it worth?

I love this projector and would prefer to bring it back to life. Any help would be greatly appreciated. I am also attaching a photo of the power board.
 

Attachments

  • img_0007b.jpg
    img_0007b.jpg
    28.9 KB · Views: 139
Status
Not open for further replies.