Yes, thats right, i got the idea on this forum from this thread
http://www.diyaudio.com/forums/showthread.php?s=&threadid=90012&highlight=
After searching /all over/ the net for some cheap means of lighting this box, I stumbled on that thread, and after thinking back to when I cleaned the projector out.. Alot of the components are VERY similar, power unit ratings, osram lamp/power supply, separate power supply for lamp and all. but there are some differences..
HOWEVER, Before I go tinkering around with this thing, I though i'd bounce this off some of you and see if any of you had any input/ideas or suggestions that could save me some trouble.
This is a fairly 'spensive projector in its day, and still not too shabby by todays standards when you count thats its FREE - i got it *FREE* from a roomie who used to work for 'got junk' and ended up with like five various projectors. when they burn out lamps, he just tosses it in a box and moves to the next projector!!!
well, he's moving to Germany, and gave me this one.
The plan is to do basically the same thing that was done in the thread linked above! I have looked around inside, the this projector DOES fire up, but it halts after it finds out the bulb is DOA. Called and confirmed this with the OEM, dead bulb = dead projector, it shuts completely off for 'safety' reasons and refuses to turn back on until its been powerd off for five seconds.
Okay, so, here is what I got so far. Standard US 120 line into the main PSU (upper left in the wide shot). that powers most of the unit, then you have a 4 prong plug leading over to the ballast system.
And thats about IT. to make things even /easier/ the only other wires involved are the leads to the lamp set itself, and then a tiny, itty bitty little red-white-black plug (3 prongs) that goes back to the main board.. and whats the plug marked as there?
'lamp ctrl' - pretty obvious what it does. but due to where the sheilding is and how the paths are laid out, I can't really follow them on the main board beyond that.
Like I said, i'm pretty sure this can be done, but I thought i'd consult some people who have done more in this area than myself. Projectors are pretty new to me still.
Do I have a chance at pulling this off, or should I find some other way?
Please feel free to ask for more information if you think it will help you help me. I'm going to document and make a howto of sorts to help others in the future become 'converts', because 500 dollars for a lightbulb is just pure insanity.. 😡
Photos follow in about the same order as described above. (I got as much detail on the ratings, models and markings as I could.)
Overall layout
lamp ctrl (mainboard point)
lamp ctrl (osram lamp psu point)
And just incase somebody wants it..
Model number sticker.
I'm really hoping I can resurrect this thing without forking half a grand into it for a lamp. If I can just get it to think it's got a lamp without really needing it or the power supply for it, i can take it from there, I have been tinkering with lighting ideas for a few months now, just..nothing with boards this complicated or with any sort of logic to them, just on off and temp sensor stuff.
http://www.diyaudio.com/forums/showthread.php?s=&threadid=90012&highlight=
After searching /all over/ the net for some cheap means of lighting this box, I stumbled on that thread, and after thinking back to when I cleaned the projector out.. Alot of the components are VERY similar, power unit ratings, osram lamp/power supply, separate power supply for lamp and all. but there are some differences..
HOWEVER, Before I go tinkering around with this thing, I though i'd bounce this off some of you and see if any of you had any input/ideas or suggestions that could save me some trouble.
This is a fairly 'spensive projector in its day, and still not too shabby by todays standards when you count thats its FREE - i got it *FREE* from a roomie who used to work for 'got junk' and ended up with like five various projectors. when they burn out lamps, he just tosses it in a box and moves to the next projector!!!
well, he's moving to Germany, and gave me this one.The plan is to do basically the same thing that was done in the thread linked above! I have looked around inside, the this projector DOES fire up, but it halts after it finds out the bulb is DOA. Called and confirmed this with the OEM, dead bulb = dead projector, it shuts completely off for 'safety' reasons and refuses to turn back on until its been powerd off for five seconds.
Okay, so, here is what I got so far. Standard US 120 line into the main PSU (upper left in the wide shot). that powers most of the unit, then you have a 4 prong plug leading over to the ballast system.
And thats about IT. to make things even /easier/ the only other wires involved are the leads to the lamp set itself, and then a tiny, itty bitty little red-white-black plug (3 prongs) that goes back to the main board.. and whats the plug marked as there?
'lamp ctrl' - pretty obvious what it does. but due to where the sheilding is and how the paths are laid out, I can't really follow them on the main board beyond that.
Like I said, i'm pretty sure this can be done, but I thought i'd consult some people who have done more in this area than myself. Projectors are pretty new to me still.
Do I have a chance at pulling this off, or should I find some other way?
Please feel free to ask for more information if you think it will help you help me. I'm going to document and make a howto of sorts to help others in the future become 'converts', because 500 dollars for a lightbulb is just pure insanity.. 😡
Photos follow in about the same order as described above. (I got as much detail on the ratings, models and markings as I could.)
Overall layout
lamp ctrl (mainboard point)
lamp ctrl (osram lamp psu point)
And just incase somebody wants it..
Model number sticker.
I'm really hoping I can resurrect this thing without forking half a grand into it for a lamp. If I can just get it to think it's got a lamp without really needing it or the power supply for it, i can take it from there, I have been tinkering with lighting ideas for a few months now, just..nothing with boards this complicated or with any sort of logic to them, just on off and temp sensor stuff.
Wow, who hit the 'easy' button?
I just went on a hunch and crossed the white and black leads from the lamp ctrl wire and pow, it stays on now.
For note, the wire is connected to the lamp ctrl port on the mainboard, and i just plugged a resistor in the back of the plug between the black and white contacts. checked the voltages across the leads that would normally feed power to the ballast psu, all normal, 12 volts nice and steady on all.
Guess i have a light system to work on next!!🙂
I'll post more photos soon, but please!! if anybody has any pointers/suggestions, feel free to post them!
I just went on a hunch and crossed the white and black leads from the lamp ctrl wire and pow, it stays on now.
For note, the wire is connected to the lamp ctrl port on the mainboard, and i just plugged a resistor in the back of the plug between the black and white contacts. checked the voltages across the leads that would normally feed power to the ballast psu, all normal, 12 volts nice and steady on all.
Guess i have a light system to work on next!!🙂
I'll post more photos soon, but please!! if anybody has any pointers/suggestions, feel free to post them!
Just an update,
The process to do this has been easier and easier.
I have been playing around with using the original reflector that was in the lamp assembly and various powers of halogen and other types of lamps.
I'm waiting on the 410 watt halogen to come in, which will likely be the money shot. I get legible image with just a 50 watt and a complete dark room on a stretched out cloth screen (no screen paint or anything.), so the 410 or anything near that should be perfect.
I even got some luck using just standard off the shelf super bright white LED's and a couple junk lenses I had laying around to help gather up the light in a well-enough beam to hit the DLP just right. not 'great' results, but I was just messing around and testing while i held them with my fingers in various ways. I could probably do better if that was the route i was taking on this one,.. but the results were fairly good..
Good enough to the point that the next projector i build will probably be based on a small, high res LCD and LED based light source.(Yes, i know, others have tried, failed, or given up. i'm gonna try.) I'm aiming to have a medium to small sized projector I can run on batteries, or at least from a car.
I may come back to this projector later and try LED's again, but not until I build myself a replacement to take its place while its on the chopping block. 🙂
Hudson out.
The process to do this has been easier and easier.
I have been playing around with using the original reflector that was in the lamp assembly and various powers of halogen and other types of lamps.
I'm waiting on the 410 watt halogen to come in, which will likely be the money shot. I get legible image with just a 50 watt and a complete dark room on a stretched out cloth screen (no screen paint or anything.), so the 410 or anything near that should be perfect.
I even got some luck using just standard off the shelf super bright white LED's and a couple junk lenses I had laying around to help gather up the light in a well-enough beam to hit the DLP just right. not 'great' results, but I was just messing around and testing while i held them with my fingers in various ways. I could probably do better if that was the route i was taking on this one,.. but the results were fairly good..
Good enough to the point that the next projector i build will probably be based on a small, high res LCD and LED based light source.(Yes, i know, others have tried, failed, or given up. i'm gonna try.) I'm aiming to have a medium to small sized projector I can run on batteries, or at least from a car.
I may come back to this projector later and try LED's again, but not until I build myself a replacement to take its place while its on the chopping block. 🙂
Hudson out.
??
Sorry, i'm having a little trouble understanding just what you mean or want.
If you are asking if this projector is a sanyo, I don't think it is, its pretty clearly marked as a MARANTZ vp8000. It might use the same lamps, but I never checked.
I don't know what you mean by '40$ okay?', but if you are asking if it is for sale, the response would be no. sorry. 🙂
Sorry, i'm having a little trouble understanding just what you mean or want.
If you are asking if this projector is a sanyo, I don't think it is, its pretty clearly marked as a MARANTZ vp8000. It might use the same lamps, but I never checked.
I don't know what you mean by '40$ okay?', but if you are asking if it is for sale, the response would be no. sorry. 🙂
Hudson. Glad you have made progress! I have a Lightware Traveler projector and I am not paying a small fortune for a new bulb. The Lightware DLP projector is small and thin but I am now looking for help on how to remove the lighting system from it. I want it gone.
The light box, the ballast and all. I have an awesome cool lighting system for it that will take VERY little modification and results are awesome as far a picture clarity and brightness and bulbs are my choice of wattage, voltage and Kelvin. Anyone have any idea where I could get schematics to this projetor or how to simply tell the projector that all is fine without the light source?
There will be new LED Plat-Lite projectors coming out this year with incredible life hours on the lamp and those dlp projectors with high priced mercury arc & metal halide lamps will be on their way out. I would like to stock up on them and use my light source and enjoy the benifits of the "out dated projectors". The new ones will be really pricey. Any help will be appreciated . New poster here. Thanks for the patients!
The light box, the ballast and all. I have an awesome cool lighting system for it that will take VERY little modification and results are awesome as far a picture clarity and brightness and bulbs are my choice of wattage, voltage and Kelvin. Anyone have any idea where I could get schematics to this projetor or how to simply tell the projector that all is fine without the light source?
There will be new LED Plat-Lite projectors coming out this year with incredible life hours on the lamp and those dlp projectors with high priced mercury arc & metal halide lamps will be on their way out. I would like to stock up on them and use my light source and enjoy the benifits of the "out dated projectors". The new ones will be really pricey. Any help will be appreciated . New poster here. Thanks for the patients!
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