Taking apart what was once a very expensive ($42K) projector. Very apart.
Пікірлер: 196
@mikeissweet10 жыл бұрын
You have the best teardowns I've seen on youtube. Very thorough and to the point. You are no doubt very knowledgeable.
@12voltvids7 жыл бұрын
We have one of thes in the board room at work.No wonder the room gets so hot when that thing is running 1Kw lamp wow.
@walts5553 жыл бұрын
👍I've watched this three times now, and it's still the high water mark for KZbin teardowns. Amazing tech, amazingly revealed. Optical path mockup was especially nice!
@913WildCat11 жыл бұрын
I've seen almost all of your videos but this one takes the cake! Great explanation. I especially liked the part at the end. Thanks!
@pr4wn5tar8 жыл бұрын
I loved your hackaday belgrade Ediphor presentation! What a piece of tech, well done!
@johnstavrakakis109410 жыл бұрын
I applaud your effort to make this video. Thank you.
@MarlosZappa12 жыл бұрын
Absolutely amazing. Thanks a bunch for this, Mike!
@zark21212 жыл бұрын
Wow what an awesome channel. I also collect NEC projectors and like to modify audio visual equipment.I bought with an old NEC MP2 plasma display panel years back and always buy NEC products. The MP2 had the most amazing image depth I have ever seen from a display, Shore new models have HDMI etc but in terms of a "Filmic quality" it was the best I have ever owned and closer to depth from a tube tv.I will be back asap with more posts, brilliant video and completely invigorating.
@AntiProtonBoy13 жыл бұрын
Good to see you posting videos Mike. Very interesting, keep it up.
@hpux73511 жыл бұрын
Holy crap! I can't believe how quickly the wood started smoking! It wasn't even that focused! Great find, Mike!
@mikeselectricstuff12 жыл бұрын
@superdau pretty much because they were cheap and would be interesting to take apart. They ended up basically free as I recovered the purchase cost from the scrap metal, and I still have one complete working left over.
@matthewbeardmore13 жыл бұрын
Great video, I was waiting the entire time to see that lamp running
9 жыл бұрын
After the anodizing is gone from the heatsink, doesn't that shiny metal reflect a huge part of the light back?
@coondogtheman12 жыл бұрын
Man that thing is a monster. I've never seen a projector that big. Biggest one I saw before this was the one in the computer lab in my school and it was maybe one quarter the size of this beast.
@ComfortElectrics10 жыл бұрын
Your videos never sease to amaze me
@ComfortElectrics10 жыл бұрын
*cease
@stevenking29809 жыл бұрын
I love when he does the fast forward thing!
@komrad369 жыл бұрын
Excellent video as always. I find it hard to believe that with all the crazy things you have in your shop, you didn't have a standard computer power cable!!
@chrispychickin9 жыл бұрын
That wasn't a standard IEC. He said it was a 16A one, the standard iec kettle plugs are only 10a rated.
@QlueDuPlessis9 жыл бұрын
Chris Tate The interesting thing about that is 16A is the Standard kettle cord in South Africa. The low current type meant for PC use doesn't fit in a kettle. Edit: I just checked and the plugs I'm thinking of are 10A. The 16A version has the flat pins horizontal instead of vertical. (clearly visible in the video as well, I just didn't look properly.)
@killerdalek11 жыл бұрын
I really enjoyed that. Excellent. I'll watch your other videos now. Thanks.
@piperfox747 жыл бұрын
Fantastic video! I learned a lot. Thank you!
@jonp53689 жыл бұрын
Any KZbinr that slices himself mid video and doesn't even flinch get's my Sub
@grassulo11 жыл бұрын
Scrap unit bought for the purpose of tearing it down this much. Even a new lamp costs more than a good used car. It served it's purpose as a projector, now it's serving another showing us how it all works with Mike's guidance.
@foxsux60009 жыл бұрын
Some of the internal fans aren't for cooling but to keep certain thicker atmospheres maintaining a continues flow (like smoke/moisture/ETC which is more common in professional use) it will also keep some of the fans blowing after shutdown to dehumidify the internals (for outside/high humidity environments)
@nlhans199013 жыл бұрын
Very cool video! Interesting to see how much stuff goes into such a projector (no wonder it costs $42k). Especially the image processing board, that were a lot of months of developing such a thing.
@williefleete13 жыл бұрын
That is some epic optics
@SPEKERDUDE11 жыл бұрын
the IR sensor on to top is to make sure the top cover is on before the lamp starts
@beyondhelp0012 жыл бұрын
How did I miss this one! Awesome :)
@mikeselectricstuff13 жыл бұрын
@PhxSt0rmz yes - this is mentioned towards the end. Search "projector bulb" on youtube for what happens when large ones pop. .
@WickedEngineer11 жыл бұрын
i like nec equipment...it's very nicely made !
@TheOriginalEviltech9 жыл бұрын
Put those lightbulbs in your car! Than wait for someone to shine his/hers high beams at you! :D
@gordo81895 жыл бұрын
That will burn the anodised coating off the backs of their eyes ;-)
@mcflonomcfloonyloo52364 жыл бұрын
Would need to install the shutter as well since there's a warmup period. Alternator would need a heavy upgrade!
@MisterWestbam11 жыл бұрын
Learned something today, cool video :)
@hopesedzro48612 жыл бұрын
am happy to see these i want to learn who to repair projector if possible
@napablue75028 жыл бұрын
Very cool. My friend invented DLP. Out of engineering -- burned out. He owns a sushi restaurant and a noodle shop now. On the wall of the noodle shop you can see the patent and the first silicon mounted on a plaque he was awarded by TI.
@DUIofPhysics7 жыл бұрын
Larry Hornbeck?
@johnnyfannucci2 жыл бұрын
You must have an awesome scrap parts bin
@mikeselectricstuff13 жыл бұрын
@barjan82 I just increased the voltage 'til it started firing. Current is pretty low, & I ran one off 240V mains with a series resistor & diode. I'd expect igniter input voltage to vary significantly with make/model.
@mikeselectricstuff12 жыл бұрын
No - the power required is orders of magnitude more than LEDs can provide. Another issue is projection optics requiresa small source, so you can't just throw more LEDs at it
@mikeselectricstuff13 жыл бұрын
@pixuma You can see a DLP with an image in the pics I took of a pico projector at electricstuff.co.uk/picoproj.html
@dariostokan254410 жыл бұрын
I enjoy watching this video.
@Scyth3934 Жыл бұрын
24:14 woah!!!! thanks for doing that!
@momo47339 жыл бұрын
I work as a projectionist in a multiplex and I have taken apart for repair some of the more modern projectors, both Barco and NEC. The general layout is pretty much the same, only nowadays there are more fans and liquid cooling/Peltiers on the DMD blocks. Oh and massive security interfaces, everything is encrypted. I particulary like Barco, it is very modular and you can just pull it apart, major blocks are held in place with friction and captive screws.
@111chicane5 жыл бұрын
What is encrypted? The video files come encrypted and the projector is decrypting them?
@mumiemonstret2 жыл бұрын
@@111chicane Yes, DCP files (Digital Cinema Package) come public-key encrypted and are decrypted in a unit called a media block. In our cinema this unit sits in in a separate computer called screen server. The SDI signal from the media block to the projector is once again encrypted and then decrypted in the projector on the the same unit as the DLP chips. Both the DLP unit and the media block have tamper detection that erases the keys if you try to disassemble them. Or if you accidentally pull the wrong lever during regular maintenance...
@grassulo11 жыл бұрын
Blast from the past seeing that 20mb flash PCMCIA card. I remember when we used to use those to transfer data between SUN blade servers. Now any of those still running have PCMCIA USB 2.0 adapters in them and use thumb drives. How technology progresses, it's amazing.
@Zagroseckt7 жыл бұрын
oh i love that shirt :) Had to get a friend to read it to me but i love it.
@HaydenDonald12 жыл бұрын
Love Huge Projectors :) Play With Them All The Time
@peterneet12 жыл бұрын
Very Good Movie Thanks a lot ! ! !
@pmkwiek8 жыл бұрын
I bet the ir thing on top is for distance measurement to check if the panel cover is on or not.
@robertdrinkall89479 жыл бұрын
Interesting video, I still can't believe you did not have a IEC cable, don't you have a kettle or computer in your house Mike?
@kevinbeckenham38727 жыл бұрын
Excellent documentary, guy doing presentation need to relax, he needs a few beers before the video.
@UberAlphaSirus9 жыл бұрын
You should keep that lamp and make a crumpet toaster :D
@maddoughnut50479 жыл бұрын
This projector is a monster ! but NEC is definitelly my brand , solid , durable
@kalleguld9 жыл бұрын
Robert Drinkall There are a lot of different IEC connectors. It's probably driven by a 16A variant (C19/C20) which aren't used much in Europe (at least not in residential scenarios).
@MaxKoschuh12 жыл бұрын
Sehr gutes Video. Daumen nach oben!
@mikeselectricstuff12 жыл бұрын
@Gameboygenius Sorry can't find them - I think they've been trashed!
@user-nj2br9mb1f8 жыл бұрын
Nice T-shirt!
@Zeddify11 ай бұрын
the IR sensor is a tamper-safe protection device to prevent people (like you) from powering on the projector while it’s open
@frac12 жыл бұрын
That hidden IRED... syncing stacked projectors, perhaps? Assuming the single-unit cover is removed when a stack is installed.
@barjan8212 жыл бұрын
The xenon power supply board is interesting. Am i right that there are no filter caps on the dc output? What topology is it? Seeing the bottom layer of the board i would say it's a forward converter.
@ZeroMass9 жыл бұрын
Sexy optics in that old behemoth.
@sarasifg11 жыл бұрын
Mike, would you possibly consider making some form of tutorial series? It's my firm belief you'd make a good tutor.
@theelmonk5 жыл бұрын
I bought some junk off Mike at a boot sale once. Always thought it was military origin but now I know where it came from .. 12:27 ! It may end up as the stage of a frankenmicroscope I'm putting together.
@zark21212 жыл бұрын
Other nec models are very good bro. Depends on if you dont mind bulb replacement , if not then second hand is the way to go. newer models have led bulbs and a good one is Optoma ML500. The new models use DLP technology which is basically a spinning color wheel. Some work better than other and optima make a great projector for not much cash. Other than that older NEC models still give very good results. I had had many nec units bro. Hope this helps, lemme know what your lookin for bud.
@barjan8213 жыл бұрын
Hi Mike, what's the proper input voltage of the igniter module? I saw 128VDC set on your bench supply. I have a 1.6kW short arc lamp, constant current smps is ready, but need something to fire it up with. I found that these igniter modules are available on eBay, maybe it's worth to try. Lamp current in my case is around 60Amps, so i hope that the ingniter can handle that extra 10-15Amps.
@artifactingreality11 жыл бұрын
good stuff. funny how many decades of research and development and money went into building that and its still cheaper to buy a new one when the lamp breaks.
@grassulo11 жыл бұрын
Because the consumer DLP projector was built to a price. This one was built without cost as an object. Note that he said a new lamp for it would be 2000 pounds, there are decent cars you can get for less than that. Expensive piece of kit, and at the end of it's life, giant heavy door stop.
@drewm19808 жыл бұрын
Awesome teardown! What an impressive piece of optoelectronics! Love the explosion warnings and burning wood in front of the lamp. You must have been wearing welding goggles! So is the bulb not very dangerous when only hooked up to the igniter, and not the low voltage, high current source?
@elenamegaken83093 жыл бұрын
Разборка на отъебись! Поржал с этого стиля! Красивый модуль на 5.50! Спасибо за интересный видос!👍🤝🍻🍻
@Scyth3934 Жыл бұрын
$50?!? What a steal! I'd give an arm and a leg to get 4 of those things!
@TheLightningStalker10 жыл бұрын
Lost it when I saw your stick man
@pixuma13 жыл бұрын
Also, i've always wondered what a DLP chip looks like if you actually feed it a signal while you've got it out
@SproutyPottedPlant9 жыл бұрын
Wow! How did I miss this one? Do you think this projector was used to show the trailers and live events?
@PhattyMo12 жыл бұрын
You know you've done a good job when you have a bin of screws left over. :D
@DanFrederiksen12 жыл бұрын
could these be adapted for super efficient Cree XML LED lighting instead? that would presumably make the whole thing quite a bit more elegant
@o0julek0o9 жыл бұрын
Hey Mike, can you actually make use of the huge lenses?
@pixuma13 жыл бұрын
SUBSCRIBED!
@ElectronicTonic15611 жыл бұрын
If you still have those DLP arrays, you could send one to Jeri for her electron microscope!
@janithasendanayaka58826 жыл бұрын
Sony DX-100 Projector after turning on pictures are clear. But after few minutes colour blots and collected in the center. What's the reason for this. Please reply me. Which part should I repair and replaced.
@superdau12 жыл бұрын
And now put it back together! Did you buy the projectors just for the fun of tearing them down (I can fully understand that!!) or is there something you wanted to do with them? (except for all the reuseable parts in them)
@zark21212 жыл бұрын
Hello Mike. Awesome video. I have a question and was wondering if you could help? I have taken some nec projectors apart & placed everything back as much as possible. For some reason I cannot fathom, The picture elements are off track & un aligned. Its the Red green and blue geometry elements. I heard its something to do with the ribbon leads connecting the LCD panels? Has been put back exactly how it was. I read that there is software that can re align them via a pc, Have you ever seen this
@scivids199912 жыл бұрын
I tend to prefer LCD as it tends to have brighter colours. DLP has way better contrast though
@carslover35099 жыл бұрын
great
@Orcinus24x512 жыл бұрын
OMFG I want that lens assembly so bad. ;_;
@williefleete12 жыл бұрын
did you ever find out what was on the PCMCIA card or did it get trashed
@mysteriousjustin12 жыл бұрын
Hey, what Panasonic camera do you use?
@grassulo11 жыл бұрын
go on ebay and find a nice used 3 lcd conference room projector, they aren't that expensive and even if they need a new bulb their worth it. Same results in a much more compact package and it'd probably have more features (possibly HDMI), for most uses a big 3 lcd projector would be more than enough and they aren't too bad when bought used.
@DolezalPetr7 жыл бұрын
where did you get it ?
@shaithesm0ck11 жыл бұрын
do you stilll have thos prisms?
@mcflonomcfloonyloo52364 жыл бұрын
Geez, no mandatory bulb training, disappointed; you should take a few hints form Photonicinduction - get a masculine power supply and train that bulb until that spark gap has truly sparked!
@mikebobcat695810 жыл бұрын
Do u still have that bulb i would like that
@eekpie6 жыл бұрын
9:40 wtf happened? Seen this years ago but Christ. You need a hug and I'm willing to give
@antoineblanchard3 жыл бұрын
nice
@WickedEngineer11 жыл бұрын
do the lamps come with these rediculous rom chips that save the hours on them ?
@jladelpha13 жыл бұрын
GREAT video! i own 3 units. 2 of these, and one SX6000 (5K lumen) do you still have the lenses? just out of curiosity, you willing to sell them? i need some more lenses for them as i use these units for building projection for corporate events.
@DanFrederiksen12 жыл бұрын
I'm not sure that's quite true. a 5x5mm Cree XM-L diode can run at 7W with decent cooling. if you form a cylinder with those 6 wide and 7 around that's quite a bit of efficient LED light. certainly not orders of magnitude below, maybe even more light. and I don't think it really needs a point light either. I don't think focus is limited by the light size although I'm not quite clear on the reason for that.
@lolman200811212 жыл бұрын
IR TX RX could be an interlock?
@TheiNeko8 жыл бұрын
Some parts of the projector may be radioactive.
@tkojabroni28337 жыл бұрын
How hard would it be to retrofit one of those 100w SMD LEDs into this thing? they could easily extend the life of this thing for pretty cheap
@ZevHoover7 жыл бұрын
the terrible CRI may be an issue, no?
@acaaew7 жыл бұрын
Plus even if you are able to rig of a replacement LED light source that matches the light output and CRI of the arc lamp, the crap 1024x768 native resolution of the DLP chips kinda makes it pointless unless you don't care about picture quality and sharpness. Even though its rather low res the 4500 lumens is pretty damn impressive.
@pintad9211 жыл бұрын
And what about an 50, maybe 100W power led?
@mikeselectricstuff13 жыл бұрын
@jladelpha I had 3 lenses but have dismantled 2 of them - they are very heavy so would cost a lot to send from the UK - I'm open to offers! I think these are 1.5-2.5. email me if interested via electricstuff.co.uk
@anotherPCfreak11 жыл бұрын
Do you have the ignitor leftover? i need one :-)
@Ganjamedicine11 жыл бұрын
MAN NEXT TIME YOU GET ONE OF THESE SEND IT TO ME INSTEAD OF DESTROYING IT!
@nickhogen923111 жыл бұрын
thats no fair your dlp chip lasted for many years and mine gave out after like 2 years