A friend from my degree course heard that I was building an LCD projector and was kind enough to offer me a broken 3M 8630 SVGA LCD projector, with the idea that i could maybe salvage it for parts. Of course, I didnt think twice about taking up the offer!
So, I now have this lump of a projector and have attempted to debug it. I have determined that the main transformer is function ing, providing all the different voltages required. Also, I have tried the 250W MH bulb in another projector and it works fine. The current symptoms are:
-No sign of life in the projector
-Not even the main fan starts up
-Maybe this means nothing, but there is a fuse on one of the modular PCBs that seems to 'fizzle'. That is, a small arc is observed between the fuse and its holder (it is intermittant, prompted by wobbling the board a bit). Maybe this implies something to someone out there with a bit more knowledge
If anyone has any suggestions for fault finding/repair then they would be graciously received. Even if I can't get it working, those RGB lcds look mighty handy
Thanks
James
So, I now have this lump of a projector and have attempted to debug it. I have determined that the main transformer is function ing, providing all the different voltages required. Also, I have tried the 250W MH bulb in another projector and it works fine. The current symptoms are:
-No sign of life in the projector
-Not even the main fan starts up
-Maybe this means nothing, but there is a fuse on one of the modular PCBs that seems to 'fizzle'. That is, a small arc is observed between the fuse and its holder (it is intermittant, prompted by wobbling the board a bit). Maybe this implies something to someone out there with a bit more knowledge
If anyone has any suggestions for fault finding/repair then they would be graciously received. Even if I can't get it working, those RGB lcds look mighty handy
Thanks
James