Extreme teardown - NEC XT5000 Projector

แชร์
ฝัง
  • เผยแพร่เมื่อ 12 พ.ย. 2024

ความคิดเห็น • 194

  • @mikeissweet
    @mikeissweet 10 ปีที่แล้ว +11

    You have the best teardowns I've seen on youtube. Very thorough and to the point. You are no doubt very knowledgeable.

  • @12voltvids
    @12voltvids 8 ปีที่แล้ว +7

    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.

  • @walts555
    @walts555 3 ปีที่แล้ว +2

    👍I've watched this three times now, and it's still the high water mark for TH-cam teardowns. Amazing tech, amazingly revealed. Optical path mockup was especially nice!

  •  9 ปีที่แล้ว +10

    After the anodizing is gone from the heatsink, doesn't that shiny metal reflect a huge part of the light back?

  • @mikeselectricstuff
    @mikeselectricstuff  13 ปีที่แล้ว +1

    @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.

  • @913WildCat
    @913WildCat 12 ปีที่แล้ว +1

    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!

  • @komrad36
    @komrad36 10 ปีที่แล้ว +3

    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!!

    • @chrispychickin
      @chrispychickin 9 ปีที่แล้ว +7

      That wasn't a standard IEC. He said it was a 16A one, the standard iec kettle plugs are only 10a rated.

    • @QlueDuPlessis
      @QlueDuPlessis 9 ปีที่แล้ว

      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.)

  • @pr4wn5tar
    @pr4wn5tar 8 ปีที่แล้ว +1

    I loved your hackaday belgrade Ediphor presentation! What a piece of tech, well done!

  • @SPEKERDUDE
    @SPEKERDUDE 12 ปีที่แล้ว +2

    the IR sensor on to top is to make sure the top cover is on before the lamp starts

  • @foxsux6000
    @foxsux6000 10 ปีที่แล้ว +2

    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)

  • @napablue7502
    @napablue7502 9 ปีที่แล้ว +13

    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.

  • @TheOriginalEviltech
    @TheOriginalEviltech 9 ปีที่แล้ว +21

    Put those lightbulbs in your car! Than wait for someone to shine his/hers high beams at you! :D

    • @gordo8189
      @gordo8189 5 ปีที่แล้ว +5

      That will burn the anodised coating off the backs of their eyes ;-)

    • @mcflonomcfloonyloo5236
      @mcflonomcfloonyloo5236 4 ปีที่แล้ว

      Would need to install the shutter as well since there's a warmup period. Alternator would need a heavy upgrade!

  • @jonp5368
    @jonp5368 9 ปีที่แล้ว +3

    Any TH-camr that slices himself mid video and doesn't even flinch get's my Sub

  • @hpux735
    @hpux735 11 ปีที่แล้ว

    Holy crap! I can't believe how quickly the wood started smoking! It wasn't even that focused!
    Great find, Mike!

  • @mikeselectricstuff
    @mikeselectricstuff  12 ปีที่แล้ว

    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

  • @momo4733
    @momo4733 9 ปีที่แล้ว

    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.

    • @111chicane
      @111chicane 5 ปีที่แล้ว

      What is encrypted? The video files come encrypted and the projector is decrypting them?

    • @mumiemonstret
      @mumiemonstret 2 ปีที่แล้ว

      @@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...

  • @zark212
    @zark212 12 ปีที่แล้ว

    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.

  • @johnstavrakakis1094
    @johnstavrakakis1094 10 ปีที่แล้ว +1

    I applaud your effort to make this video. Thank you.

  • @mikeselectricstuff
    @mikeselectricstuff  13 ปีที่แล้ว

    @PhxSt0rmz yes - this is mentioned towards the end. Search "projector bulb" on youtube for what happens when large ones pop. .

  • @coondogtheman
    @coondogtheman 13 ปีที่แล้ว

    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.

  • @grassulo
    @grassulo 12 ปีที่แล้ว

    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.

  • @robertdrinkall8947
    @robertdrinkall8947 10 ปีที่แล้ว +2

    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?

  • @SproutyPottedPlant
    @SproutyPottedPlant 10 ปีที่แล้ว

    Wow! How did I miss this one? Do you think this projector was used to show the trailers and live events?

  • @johnnyfannucci
    @johnnyfannucci 2 ปีที่แล้ว +1

    You must have an awesome scrap parts bin

  • @ComfortElectrics
    @ComfortElectrics 11 ปีที่แล้ว +5

    Your videos never sease to amaze me

  • @mikeselectricstuff
    @mikeselectricstuff  13 ปีที่แล้ว

    @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.

  • @kalleguld
    @kalleguld 10 ปีที่แล้ว

    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).

  • @grassulo
    @grassulo 12 ปีที่แล้ว

    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.

  • @pmkwiek
    @pmkwiek 8 ปีที่แล้ว +1

    I bet the ir thing on top is for distance measurement to check if the panel cover is on or not.

  • @Zeddify
    @Zeddify ปีที่แล้ว

    the IR sensor is a tamper-safe protection device to prevent people (like you) from powering on the projector while it’s open

  • @UberAlphaSirus
    @UberAlphaSirus 9 ปีที่แล้ว +2

    You should keep that lamp and make a crumpet toaster :D

  • @nlhans1990
    @nlhans1990 13 ปีที่แล้ว

    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.

  • @barjan82
    @barjan82 13 ปีที่แล้ว

    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.

  • @matthewbeardmore
    @matthewbeardmore 13 ปีที่แล้ว

    Great video, I was waiting the entire time to see that lamp running

  • @kevinbeckenham3872
    @kevinbeckenham3872 7 ปีที่แล้ว +2

    Excellent documentary, guy doing presentation need to relax, he needs a few beers before the video.

  • @tkojabroni2833
    @tkojabroni2833 7 ปีที่แล้ว +3

    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

    • @ZevHoover
      @ZevHoover 7 ปีที่แล้ว +4

      the terrible CRI may be an issue, no?

    • @acaaew
      @acaaew 7 ปีที่แล้ว

      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.

  • @drewm1980
    @drewm1980 9 ปีที่แล้ว +1

    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?

  • @frac
    @frac 12 ปีที่แล้ว

    That hidden IRED... syncing stacked projectors, perhaps? Assuming the single-unit cover is removed when a stack is installed.

  • @Scyth3934
    @Scyth3934 ปีที่แล้ว

    $50?!? What a steal! I'd give an arm and a leg to get 4 of those things!

  • @zark212
    @zark212 12 ปีที่แล้ว

    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.

  • @barjan82
    @barjan82 13 ปีที่แล้ว

    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.

  • @theelmonk
    @theelmonk 5 ปีที่แล้ว

    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.

  • @stevenking2980
    @stevenking2980 9 ปีที่แล้ว

    I love when he does the fast forward thing!

  • @ElectronicTonic156
    @ElectronicTonic156 11 ปีที่แล้ว

    If you still have those DLP arrays, you could send one to Jeri for her electron microscope!

  • @killerdalek
    @killerdalek 11 ปีที่แล้ว

    I really enjoyed that. Excellent. I'll watch your other videos now. Thanks.

  • @sarasifg
    @sarasifg 12 ปีที่แล้ว

    Mike, would you possibly consider making some form of tutorial series? It's my firm belief you'd make a good tutor.

  • @grassulo
    @grassulo 12 ปีที่แล้ว

    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.

  • @ZeroMass
    @ZeroMass 9 ปีที่แล้ว +4

    Sexy optics in that old behemoth.

  • @AntiProtonBoy
    @AntiProtonBoy 13 ปีที่แล้ว

    Good to see you posting videos Mike. Very interesting, keep it up.

  • @MarlosZappa
    @MarlosZappa 12 ปีที่แล้ว +1

    Absolutely amazing. Thanks a bunch for this, Mike!

  • @o0julek0o
    @o0julek0o 10 ปีที่แล้ว +1

    Hey Mike, can you actually make use of the huge lenses?

  • @elenamegaken8309
    @elenamegaken8309 4 ปีที่แล้ว

    Разборка на отъебись! Поржал с этого стиля! Красивый модуль на 5.50! Спасибо за интересный видос!👍🤝🍻🍻

  • @maddoughnut5047
    @maddoughnut5047 10 ปีที่แล้ว

    This projector is a monster !
    but NEC is definitelly my brand , solid , durable

  • @scivids1999
    @scivids1999 12 ปีที่แล้ว

    I tend to prefer LCD as it tends to have brighter colours. DLP has way better contrast though

  • @superdau
    @superdau 13 ปีที่แล้ว

    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)

  • @janithasendanayaka5882
    @janithasendanayaka5882 6 ปีที่แล้ว

    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.

  • @ceecrb1
    @ceecrb1 12 ปีที่แล้ว

    OMG you arched that lamp on your desk!!
    Do you know there is a very high explosion risk of those lamps both while warm AND cold!
    I repair sky trackers/space cannon "batman" style fixtures. Not something I'd try LOL!!

  • @mcflonomcfloonyloo5236
    @mcflonomcfloonyloo5236 4 ปีที่แล้ว

    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!

  • @hopesedzro486
    @hopesedzro486 12 ปีที่แล้ว

    am happy to see these i want to learn who to repair projector if possible

  • @DanFrederiksen
    @DanFrederiksen 12 ปีที่แล้ว

    could these be adapted for super efficient Cree XML LED lighting instead?
    that would presumably make the whole thing quite a bit more elegant

  • @____________________________.x
    @____________________________.x 9 ปีที่แล้ว +3

    Please could you stop waving everything around so much, thanks :)

  • @zark212
    @zark212 12 ปีที่แล้ว

    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

  • @artifactingreality
    @artifactingreality 11 ปีที่แล้ว

    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.

  • @TheLightningStalker
    @TheLightningStalker 11 ปีที่แล้ว +1

    Lost it when I saw your stick man

  • @mikeselectricstuff
    @mikeselectricstuff  13 ปีที่แล้ว

    @Gameboygenius Sorry can't find them - I think they've been trashed!

  • @DanFrederiksen
    @DanFrederiksen 12 ปีที่แล้ว

    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.

  • @PhattyMo
    @PhattyMo 12 ปีที่แล้ว

    You know you've done a good job when you have a bin of screws left over. :D

  • @grassulo
    @grassulo 12 ปีที่แล้ว

    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.

  • @piperfox74
    @piperfox74 7 ปีที่แล้ว

    Fantastic video! I learned a lot. Thank you!

  • @eekpie
    @eekpie 6 ปีที่แล้ว

    9:40 wtf happened? Seen this years ago but Christ. You need a hug and I'm willing to give

  • @DarthHater100
    @DarthHater100 8 ปีที่แล้ว +1

    I wonder what the real difference is compared to a cheaper projector or TV. I can understand a FILM projector costing a lot of money, due to the high quality of film. But if you have a 1080i quality ceiling, there is only so good you can get. Of course the 3 chip style is a big improvement for a DLP projector so you don't get the rainbow blur, and the more expensive projector would have extra brightness. Just kind of seems like playing a cassette tape on $40,000 speakers. . .

    • @DrTune
      @DrTune 8 ปีที่แล้ว

      +DarthHater100 in terms of engineering a film projector is a pretty simple bit of hardware compared to this ^^^ This particular projector (being from 2001) is only 1024x768 resolution - still that's not totally horrible when you're displaying natural images blown up big (obviously digital stuff might look pretty pixel-y) . I think the point is that it's bright enough for large spaces (4.5k lumens). Why is there a 1080i quality ceiling? If you've got $40k to spend on a projector (nowadays) no you can get some pretty nice crazy resolution (4k or more). Anyway look at the crazy engineering in that thing in the video.. not cheap to make

    • @DarthHater100
      @DarthHater100 8 ปีที่แล้ว

      +Dr Tune I meant there is a 1080i ceiling on this particular projector. If that is incorrect and the ceiling is even lower, my apologies. . . I saw a film projector tear-down, and there's a lot that goes into those, and film is of such high quality that the sky is the limit with better engineering. . . I could understand better lenses, or brighter bulb, or engineering that stabilizes the gate, and smooths out the frame rate or something. I can only see this being crazier engineering in this bc microchips and dlp chips, but any projector will have those. I can see how you can get a much better picture on a projector nowadays that can do 4K. . . but I still fail to see the point of $40,000 for a 1024x768 projector. . . yes it will be very bright. . . very bright upscaled DVD quality. . . the build quality is impressive, but not $40k impressive. . . what did you mean about displaying natural images and digital stuff looking pixel-y?? Aren't all images, natural in origin or not converted to digital for a digital projector like this? I didn't understand that bit. . .

    • @DrTune
      @DrTune 8 ปีที่แล้ว

      DarthHater100 I meant that film projectors are relatively simple compared to this because each frame of the film 'stores' the entire image as displayed, in full color, ready to go; you 'just' have to illuminate and project it onto a screen (and feed the film, and have a gate, and pick up the magnetic/optical audio track and.. and..) ..but at least a film projector starts off with a set of complete images on a convenient strip. This thing has to assemble the color images 'from scratch' using separate R/G/B paths.
      As for the pixel-y comment I just meant that most all natural images (when digitized) have relatively soft intensity and color gradients across the pixels, so pixellation at low resolution is less obvious to the eye (it's just a kind of gentle fuzziness, like how old-style TV looks nowadays when you're used to HD), but when you view a computer-generated image (like text or early graphics) there is often hard contrast changes between adjacent pixels and it's much more obvious to the eye (e.g. that early 80's videogames pixel-y look). You can display e.g. photographs of nature at surprisingly low resolutions and they still look ok. The more 'man made' the subject (e.g. a row of steel railings) the more there are regularly spaced high-contrast differences and the more the eye notices if it's displayed at low resolution (or you get Moiré effects for example, which are an interference pattern generated by sampling a regular pattern at too low a resolution)

    • @DarthHater100
      @DarthHater100 8 ปีที่แล้ว

      +Dr Tune Okay, I see what you mean about the projection of film being simpler in a sense.
      Although it is a bit different, I know from having one of those fat CRT big screen rear projection TVs what you mean about natural images. For the most part a movie would look just fine, though soft compared to a flat panel, especially when close, but if you ran a laptop to it, it looked like crap. Your brain could forgive a movie image, especially from 10 ft away at the couch, but not so much with text, where you really need that pixel-perfect resolution. So I see what you mean about 'natural images' being less obvious to the eye. . .

    • @DrTune
      @DrTune 8 ปีที่แล้ว

      +DarthHater100 Exactly that :-)

  • @pixuma
    @pixuma 13 ปีที่แล้ว

    Also, i've always wondered what a DLP chip looks like if you actually feed it a signal while you've got it out

  • @williefleete
    @williefleete 13 ปีที่แล้ว

    That is some epic optics

  • @jladelpha
    @jladelpha 13 ปีที่แล้ว

    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.

  • @caelitis
    @caelitis 12 ปีที่แล้ว

    You are right. There is absolutely no need whatsoever to treat this device with such disrespect. Tearing off the BGA from the DMD PCB to "see" the pin count?! WHY NOT JUST LOOK IT UP ONLINE?! For fuck's sake, this is painful to watch.

  • @williefleete
    @williefleete 12 ปีที่แล้ว

    did you ever find out what was on the PCMCIA card or did it get trashed

  • @WickedEngineer
    @WickedEngineer 12 ปีที่แล้ว

    do the lamps come with these rediculous rom chips that save the hours on them ?

  • @CheapSushi
    @CheapSushi 5 ปีที่แล้ว

    Super interesting and very thorough video! Thank you! It's a bit funny and kinda weird how you just practically toss all the parts around. Like you got it because you appreciate it but then throw it around like garbage.

  • @WickedEngineer
    @WickedEngineer 12 ปีที่แล้ว

    i like nec equipment...it's very nicely made !

  • @beyondhelp00
    @beyondhelp00 12 ปีที่แล้ว

    How did I miss this one! Awesome :)

  • @AureliusR
    @AureliusR 6 ปีที่แล้ว +1

    It's weird, I've watched this before, but I can't watch it now, it makes me so dizzy I almost threw up! :(

  • @Zagroseckt
    @Zagroseckt 7 ปีที่แล้ว

    oh i love that shirt :)
    Had to get a friend to read it to me but i love it.

  • @Scyth3934
    @Scyth3934 ปีที่แล้ว

    24:14 woah!!!! thanks for doing that!

  • @shaithesm0ck
    @shaithesm0ck 12 ปีที่แล้ว +1

    do you stilll have thos prisms?

  • @mikeselectricstuff
    @mikeselectricstuff  13 ปีที่แล้ว

    @pixuma You can see a DLP with an image in the pics I took of a pico projector at
    electricstuff.co.uk/picoproj.html

  • @mikebobcat6958
    @mikebobcat6958 11 ปีที่แล้ว

    Do u still have that bulb i would like that

  • @Jjab83
    @Jjab83 13 ปีที่แล้ว

    i notice you're wearing a shirt sayin "no i wont fix your pc, ipod, etc....and im just saying...its a good idea for business...you have the ability...more than i can say for alot of people

  • @hardwareful
    @hardwareful 13 ปีที่แล้ว

    9:42 I bet they made finite element simulations and figured out the air circulation inside the case can be improved by adding a small fan here and there ;-) No way to understand this without the full setup or massive computing power.

  • @nickhogen9231
    @nickhogen9231 11 ปีที่แล้ว

    thats no fair your dlp chip lasted for many years and mine gave out after like 2 years

  • @VinchiStudios
    @VinchiStudios 12 ปีที่แล้ว

    I want that freaking shirt!!!!!!!!
    where did you get it??

  • @mikeselectricstuff
    @mikeselectricstuff  12 ปีที่แล้ว

    @williefleete Nothing exciting - I think just a couple of backdrop images from an AV rental company

  • @aptsys
    @aptsys 11 ปีที่แล้ว

    No it's not. It's an IrDA device so can only be used for communications, not sensing.

  • @pintad92
    @pintad92 11 ปีที่แล้ว

    And what about an 50, maybe 100W power led?

  • @lolman2008112
    @lolman2008112 12 ปีที่แล้ว

    IR TX RX could be an interlock?

  • @pauladdy12
    @pauladdy12 12 ปีที่แล้ว

    Why does modern day dlp projectors colour flicker after 1 year and that one clearly which is like 10 year is still great but just needs a new lamp

  • @ab.3800
    @ab.3800 11 ปีที่แล้ว

    I was going to comment that it looks like a window AC unit. But then I realized, they are mounted in windows...

  • @wouternet94
    @wouternet94 13 ปีที่แล้ว

    Wanna watch out with overdriving the lamphours, it can explode, with this kind of lamps it can be pretty extreme...

  • @TheiNeko
    @TheiNeko 8 ปีที่แล้ว

    Some parts of the projector may be radioactive.

  • @юлябобровська
    @юлябобровська 8 ปีที่แล้ว

    Nice T-shirt!

  • @DolezalPetr
    @DolezalPetr 7 ปีที่แล้ว

    where did you get it ?