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- เผยแพร่เมื่อ 25 มี.ค. 2013
- Found a $25 projector without a lamp so I figured the only reasonable thing would be to LED mod it instead of buying an expensive lamp. I'll get around to posting detailed info on my blog within the next few days.
Blog Link:
diytronics.blog...
LED: dx.com/p/30w-24...
LED Driver: dx.com/p/2000ma...
I modified my projector to run on LED's and put in it a XM-L T6 flashlight that concentrates the light in one square, at first it did not look promising, then I disassembled the optic block and took out the first lens with the little squares and the lens with the metal grid on it, and that is when it started to look like a projector image, the next thing to do is to buy a proper driver for the LED, it needs 3A at 3.3v and the driver in the flashlight is running the LED at 1A 3,1v. So 300Lm with the flashlight driver, 1000Lm with a 3A driver. Try to remove those lenses, it will make a huge difference.
Thanks for the tip. I'm home for winter break so i'll try removing those lenses to see if it makes an improvement.
sjm4306 No problem, it will make a big difference if you have the light concentrated enough,
Thank you very much for the advice. I'm from Argentina and I'm reading all the comments on the fascinating video and writing down all the suggestions.
Thank you both for such immense help.
I have an Epson S3 projector.
Cheers!
Sorry for the language, I use google translator
I really want to get my hands on a cheap DLP projector since now my interest is piqued. I'll keep an eye on ebay for any "as is" defective sales.
Doing a similar project on my channel except on an InFocus brand projector. I am putting in a 1100 lumen led bulb replacement.
Yes an DLP projector uses an White light source like ever other projector. Only the main difference are of course the Color wheel and the beam of light is more narrow compared to LCD. So its difficult to focus the light which will lead to more waste. Thats why the idea of multiple different light sources(3 Colors) came up to eliminate the color wheel and the optics needed to put the light beam tough the color wheel.
thats so cool!
Hi. looks fantastic.
im doing the exact same mod on a SONY projector. i bypassed the optocoupler that turns the projector off when there is no light bulb. and now all i need is a good power LED. as you mentioned, power dissipation can be an issue since there isnt much room for the LED and heatsink to go in.
if we had a DLP instead of 3 LCD projectors the output lumens should be larger.
i might go as high as 50W LED since i dont think that a PC prpoesor heatsink could dissipate more then that
I only altered the electrical wiring and had to remove some plastic. I left the original optics intact. It was a quick mod that only took two days.
epson lcd projector emp-s4
how much voltage ?
Can I give 220 voltage to directly on lamp
Please reply sir
Hello I have a 3lcd Eiki model : lc xga 982 and I have successfully made the modification using a 50 watts led light source ... So here I come to beg for your help , how to make my projector starts up with the button on/off in the projector ? is it necessary to use a relay ?And if so how to use/make it inside the device ? thank you for the video !
Hello !
I have Epson 1830 projector. My ballast looks almost the same. Could you tell mi which pins (going to main board you had to connect ?
Hi I'm really impressed, Can you Pls explain me how do you hack The ballast unit input signal one of optocupler (SDL & SCL voltage from Prosser). I had Sony VPL-HW20 projector. That i wanted to convert LED lamp. I'm also got some knowledge about electronics and components & semiconductor. Thank you and appreciate your skills.
Please could you do a schematic for the circuit that we could understand it better
just I need to bypass the power supply to install a led lamp for My projector can u send me pictures of epson emp s5 connection
Dear Friend.
I have a EPSON EMP-S4 projector with the original source damaged. I bought and I received the led lamp and the driver you recommended on your blog. I've also got the heat sink with the cooler from an old PC.
I really need your help to make the card with the opto coupler that connects the power supply to the relay. You can provide a wiring diagram with the proper connections or more detailed photos of the project?
Thank you for your attention and sorry the job.
hi sjm4306 i want to do the same with an simmilar model, do you think than i can use a MOC 3010 optocoupler, to do the same that you or can you tell me what is the number of the optocoupler that you use? and if you conect it to an main board source, thanks a lot!!!
Hi, do you know what is the operational system and the architecture this device?
nice work, Im on a similar project, thinking of using halogen lamp instead of LED since both needs cooling anyway. Will see what it ends up with.
Did you alter any of the original lens?
keep it up!
Your links to buy the driver and led's are out of stock or whatnot. But thanks for going through the trouble though. Cheers
It's probably ebay changing the link format for the millionth time, breaking all my old links. I posted the links 8 years ago and it'd be a full time job just to constantly update all of them so they continue working longterm.
@@sjm4306 ya; of course. Maybe for instance; top comments should keep following a constant changing towards most recent of viewers that has last researched for best and cheapest of new links. Just a thought. For those out there whom are reading this. Lol. It would be ideal if your links could be easily updated by viewers. Aaah. There are so many ways huh. Audio comments would be cool too; but seems like our era will likely be also labeled as for that to; slow of rendering choices such as as simple as audio comments. Watch and laugh is all that one can do.
I think there used to be a way of pinning a top comment (or maybe I'm misremembering some other social media) but cant find the option on the android yt app, may be gone or has to be done on a computer?
Nice job you did there with the mod I saw it on Hackaday.
Sjm can you do a full video tutorial on how to install the LEDs for the bumpers and start and back buttons and dpad you will be the first to do them on youtube
Have you tried this using a DLP projector yet? The light output is drastically more efficient.
S4 is a dlp
Hello Friend,
Could you please send me or post the schematic of these technical changes?
I am very interested in the project, congratulations.
how did you find or test the +12v rail for the relay coil
perhaps a external power pack for the flashlight bulb
A UHP or any stock lamp used in a projector also emits IR radiation. Compared to a 35+ watt HID or Halogen bulb the amount of IR radiation from a UHP build is much more. And its not only the IR radiation the projector suffers from. There is also a UV radiation which will lead to LCD degradability and especially a Blue LCD. And if there was a respectful alternative with the same amount of light output without all the cons of heat/IR/UV I guess then the manufactures should have released it already
Hi sjm, how're you?
I dropped a Philips LED (it was installed in a lamp) then twisted the cover and took the PCB off, there's tiny transformer looking that had desoldered from the impact it seems (the lamp has fallen hard a few times).
I can repair it and solder it again but does that tiny transformer looking thing have polarity or is it like a regular resistor or fuse, no + and -?
Thank you.
God bless, Rev. 21:4
yes the transformer must be installed in the correct orientation it was originally. Transformers have two sides, a primary and secondary, with different number of turns so if you get it backwards and the high/low voltage sides are swapped it could either just not work or blow.
@@sjm4306 Thanks, how come even LED bulb (which is small) need a small transformer (assuming I identified that subcomponent correctly)? Are there any other subcomponent that looks like a transformer?
By the way, it'll be a relatively easy fix but how do you tell which is the negative & positive poles?
Cheaper led bulbs use many series leds and/or more dangerous capacitive droppers instead of a transformer as a cost cutting measure. Especially if it's a smart bulb with wifi and a controller it should have a transformer to step down the voltage for safety/reliability. To identify which way it should go try and google pics of the fcc application which often show teardown pics of the pcb. If not you have to measure the pri/sec impedance and guess based on reverse engineering the traces on the pcb.
I gave you ample time to buy it before I decided to scoop it up off ebay. Anyway there are plenty of projectors for cheap still for sale. I'll help you find one later.
wow amazing ive been searching high and low for a NEW led projector because my DLP goes through bulbs like crazy its a sharp xr-10x one of the worst for bulbs, there is one white light and a spinning wheel. and hmmm 4000 lumen cree flashlights on ebay for 20$ and im willing to bet a flashlight doesn't have any heat issues
Good morning friends, I have the following problem with my video beam Epsom brand EMP S4; by a bad connection there was a short circuit and the lamp is damaged (this is indicated by the flashing red light / lamp), took him to a specialized company that mark and I noted that the lamp was broken indeed. I bought a generic Amazon, I proceeded to change the damaged according to the new designated by the coach, but once done, still gives me the same error (the blinking red light / lamp). I wonder why that happens is not the original and replaced it with a generic? Do I have to reset the computer? Someone who can tell me what could be the problem.
Thanks to hands.
Just short the optocouplers like sjm did. It's because you used a generic bulb
I want to do the same thing I have a Epson ex-71 and its spose to be 2500 lumens so I went on ebay and got a 30 watt led that puts out 2500 lumens. was wonder if there is diagram schematics for the vircut boards inside because im kind of new to electronic but have been doing a lot with leds = nice job man
2500 lm at screen. Not 2500 at lamp... Original lamps are too more bright.
dude i have this projector and im having the same problem so can u help to fix it pls
Not really sure what problem you are referring to, this video was about led modding this projector.
Hi sjm4306,
can this mod will work on epson eb-w6
The only problem with DLP projectors from what I've heard is that you would need three LEDs (a red, blue, and green one) which would briefly flash in quick succession to make up the entire color image since there is only one DLP array. This is why early projection TV's needed a spinning color wheel to color the light source and form three superimposed images for each color channel.
I have a projector tv. Suddenly one day I started seeing double but everything works. Any project ideas I can use it for?
Sounds like something optical is misaligned, should be possible to fix if you are so inclined. As for using it for random projects, you could turn it into a projector, a UV sla 3D printer, or really anything that requires light to be projected in a controlled manner.
@@sjm4306Great ideas. I think I might try the projector. The 3d printer is way beyond my skill level since I've never heard of a "UV sla 3D Printer". Thanks.
great video!
hello! I have a question: can I plug directely the electronic ballast to 220v ?
You could, but then the light would always be on so long as the projector is plugged in. Either way you still need to short the correct pins on the main board to trick it into thinking the original ballast is installed.
@@sjm4306 thank you !....
Blog link? I find this interesting!
so do i jump the emitter and collector. Mine looks just like yours . drive.google.com/file/d/0BzcIv57tmrdqNjk0SVczelViYUk/view?usp=sharing so I just jump the top octocoupler yes?
PackardBelltoll .
Seriously. is not recomended use any type of incandescent bulb like halogen or tungten lamp. They emit a lot of IR radiation that becomes heat (and do not help to make the proyection more "bright"). If you can. You should use high power leds, or mercury lamps. The light in both are nearly clear and do not emit so much IR like others.
Or does anyone know how to do them??
hello
I am having epson emp s5 I want to know that lamp power supply bypass connection that I could do at home can u please help me I can send u the pictures OF My projector I am having 30w led for projector lamp
akash nicky It's been a few years since I've done this but if you send high res pics of the inverter ballast then I can try to point you in the right direction. My email is sjm4306@gmail.com
My work has 60 of the Epson Powerlite 825, and we are looking to change them all to LED. Would you be interested in working a contract, and if so how much?
Matthew Cook I would love to help you out but I have my hands full with classes and graduate research at uni at the moment.
I work at Birmingham Southern College, and we do not want to interfere with your studies. This can be an over time project. Our first concern is to get one working and test it. do you think we could mail you a unit for conversion and have a test unit built. Only if you are still interested.
The early DLP tech used the spinning wheel. Now there is LED and laser DLP tech
Hola lo intentaste en un dlp?
I dont have a full sized dlp projector, but this should work on color wheel based dlp projectors.
How much the lamp voltage ?
The led I chose is something like 32Vdc but has its own ac-dc adapter to run off mains (120Vac 60Hz here).
Hi, I'm in London England, If anyone has the expertise (or know of a company) to do this type of conversion, please get in touch, I have a couple of dlp's I'd like to convert. Also quote your price.
Cheers.
Olmuyor... led işık kaynağının odaklama problemi var.. Kontrast çok düşük....
That's what the collimating lens in front of the led array is for, to straighten and focus the light more efficiently into the window in the lamp compartment.
Sony vpl cs20 how to bypass Help bro :)
muito bom seu vídeo mi ajudou muito fiz todas as adaptações i ficou ótimo valeu mesmo obrigado
amigo se eu comprar um projetor desse mais o led vc faz a modificacao pra mim
ola bom dia Haroldo Silva
Depende do projetor mais da pra fazer sim
os projetores ideais são os da sony epson dell
assim que estiver com o projetor entre em contato comigo blz
me chama no whats amigo 11 9 52156393 ai tu me tira uma duvida ok
Use this LED light,. Light fits the size of LCD screens and sees very bright. www.dx.com/p/20w-1400-lumen-white-light-led-emitter-metal-board-16-18v-42009.
Since performing this mod I've read that the closer you can get to a point source the better the light efficiency overall. I think Phillips makes a 20W or so phlat (not sure of spelling) light that is made for such applications but is very expensive compared to these cheap as chips while led arrays.
Use this LED light,. Light fits the size of LCD screens and sees very bright. www.dx.com/p/20w-1400-lumen-white-light-led-emitter-metal-board-16-18v-42009. Use this lens in front of the LED. www.dx.com/p/50mm-18mm-2-80-degree-glass-optics-12834. Use this step down voltage regulator and a laptop charger to power the led. www.dx.com/p/lm2596-digital-display-adjustable-step-down-voltage-regulator-module-dark-blue-360654#reviews. Do not forget to mount the LED on a heat sink with cooler. www.dx.com/p/4-5-4-5cm-0-1a-cooling-fan-red-silver-dc-12v-432834. Hope my comment not marked as spam due too many links. Trust me is the best led since now and i try many.
he entire arreys is small and thick and the light fits the size of LCD screens, is not an usual big 20w led. And do not forget to use lens in front of led to focus light more.
Thanks for the links. When I get the time and money I'll give it a try. The only issues I see are that the regulator is a voltage regulator and LEDs are current controlled devices so a current regulator is necessary (or adding a series resistor and relying on the voltage regulation) and I doubt it will be thermally able to supply the 3A across the specified output range.This would probably do the trick though: www.ebay.com/itm/LED-Power-Supply-Driver-20W-For-20Watt-High-power-LED-Light-Lamp-Bulb-85-265V-/321231204111?hash=item4acadf2f0f:g:FKcAAOxyNDhSYfP7
It goes perfectly with that regulator, no need to complicate things. LED specifications: - Working voltage: 16~18V
- Working current: 1.4A. I used an ordinary laptop charger 20v 2.5a , you need to step down voltage at about 17v with theat regulator and the led use the amps he nededs.
in other words....i cant do this shit
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I love these people.