Simple multimedia projector


The time of the USSR is a thing of the past and left behind various trinkets that are no longer needed by anyone. For example, you probably have a slide projector or filmoscope in your closet. Nobody needs it anymore, and it’s a shame to throw it away... Let’s give it a second life and make it multimedia projector, on which we will watch films, pictures, or even play on the big screen.
Attention : as a matrix forming an image, you can take not only a small TV as in the article - an MP3 player that plays video, a cell phone, and especially an iPod with good resolution are also suitable. In general, there are many paths to success. And there is no need to solder the cable.
Well, any filmoscope, etc. will do as a slide projector.
For $75 I bought another masterpiece of Chinese friends - a Super TV with a pretty good 2.5" matrix, a standard resolution of 480*234 for such devices and a video input, which is very important:
It should be noted here that the size of the matrix was dictated by the size of the window for the slides in the projector, besides, Chinese TVs with a larger matrix still have the same resolution (the pixels are just larger), and you have to fence the entire package (lamp, optics, housing) for them. I don't think it's worth it.
At the bottom you can see the cable connector from the matrix:
We tear off the backlight with wires (on the right):
What remains is a matrix with a very short cable, about five centimeters, which is completely unacceptable for our purposes, and Chinese engineering has gone so deep that there are 28 contacts located on one and a half centimeters of cable width:
But there is nothing to do - you still need to lengthen it. Attention! Take on this procedure only if you are really confident in your abilities, otherwise it is better to entrust this to a more experienced friend!
Armed with a Japanese 25W soldering iron, low-temperature solder, a magnifying glass and MGTF 0.03 wire, I taped the cable to the table, placed a piece of plastic, and after 2 hours of torment I got the following:
Then I filled it all with a glue gun, rang out all 28 contacts on the board with a tester (the points were on both sides of the board) and soldered to them:
The result is an external matrix on a 20cm cable (the inscription SUPER is the image on the display in the absence of an input signal):
I got the decommissioned Svityaz-Avto slide projector for free:
Inside it already has everything you need - trans, cooling and optics, consisting of a 24V 150W halogen lamp, a reflector, a triplet of lenses, a UV filter made of special glass and a triplet lens (not in the photo):
I inserted the matrix into the slide window and added it just in case. cooling in the form of a cooler for P4 and pipes, although with a native lamp, apparently a standard one would be enough, becauseIt turned out that the temperature on the matrix does not exceed 40 degrees (air is successfully sucked in through the slot for the slides just opposite the matrix). I threw out all the now unnecessary mechanics:
The finished projector looks like this:
I threw out the original fan and installed a diametrical turbine. I hid the power supplies for the TV and fans in the case. The device stopped making noise and took on this appearance:
Considering the level of all other components, the screen was also made very budget, but displays brighter than my old matte Projecta for $200, sold a year ago. Because A raid on stores in search of powdered silver did not bring any positive results, I simply painted a piece of cardboard with ABRO “chrome” aerosol, and painted the frame matte black. The result is a panel with a diagonal of 125 cm (50"):
Comparison with a TV standing next to it (20" Sony Trinitron):
This is how it turned out, we'll test it. Chinese halogen lamps for a projector cost 50 rubles (for 150W and 250W), although their resource is unknown to me, but the fact that the website for the Osram 150W lamp indicates a resource of 2000 hours inspires optimism. There are plans to modify the standard cooling system, it’s noisy and annoying, although after five minutes of watching you don’t notice it anymore...
come back
Comment
  • bowtiesmilelaughingblushsmileyrelaxed relaxedsmirk
    heart_eyeskissing_heartkissing_closed_eyesflushedrelievedsatisfiedgrin
    winkstuck_out_tongue_winking_eyestuck_out_tongue_closed_eyesgrinningkissingstuck_out_tonguesleeping
    worriedfrowninganguishedopen_mouthgrimacingconfusedhushed
    expressionlessunamusedsweat_smilesweatdisappointed_relievedwearypassive
    disappointedconfoundedfearfulcold_sweatperseverecrysob
    joyastonishedscreamtired_faceangryragetriumph
    sleepyyummasksunglassesdizzy_faceimpsmiling_imp
    neutral_faceno_mouthinnocent
4 minus one =
Comments (13)
  1. Jew
    #1 Jew Guests January 10, 2011 11:45
    0
    Hmmm....Super wacko

    But where can I get a projector like this? sad

  2. Bond
    #2 Bond Guests 9 July 2011 22:02
    0
    yes fuck!!! That's why the language changes only after the 5th try?
    In short, about the matter, I have a projector and I thought about the same idea before, but how to project it from a TV?
    thank God everything is banal here..))
  3. Veent
    #3 Veent Guests 9 July 2011 22:09
    1
    On this site there is another way to make a projector... And there is also such a cool program “Automatic keyboard layout switch”
  4. Bond
    #4 Bond Guests July 10, 2011 01:35
    0
    soooo...my picture came out unattractive...I checked it on a white surface, close - far, etc. I see you have several magnifiers, but I have 2 in total and I took the screen from the K550i..
  5. Veent
    #5 Veent Guests 10 July 2011 18:34
    0
    The author is not me... and these are not magnifying glasses but lenses
  6. Danbaz
    #6 Danbaz Guests September 27, 2011 12:05
    0
    This automatic switch is bugging me! I deleted it for fuck's sake! He very rarely guessed the desired layout, and turned off the manual one. Here's your automatic switch... sad You can also take the optics from an old camera (the lenses used to be unscrewed) or from a projector.
  7. Smail
    #7 Smail Guests January 21, 2012 02:37
    0
    who is the author please reset the link smile
    I think I have everything, but it’s better to check with the creator, even the projector is the same
    SVITYAZ - M
  8. Chon188
    #8 Chon188 Guests 27 June 2013 14:08
    0
    The light bulb can be replaced with Light-emitting diode (or better yet, several), but then you’ll have to tinker with the lighting. But it won't heat up.
    1. -----
      #9 ----- Guests 8 June 2018 22:15
      0
      how to say - diodes also require frost. You can’t do without a heat sink!
  9. Alexander
    #10 Alexander Guests October 1, 2013 01:08
    0
    In 2008, I did this at first, on such a small matrix, but the quality of the card was not good, then on the matrix of a car TV - it’s much better there, but for complete happiness you need to take the matrix of a 15-inch LCD monitor, but now this is no longer very relevant, So how 1.5 meter inexpensive and 3D TVs have already appeared
  10. ash
    #11 ash Guests 23 October 2013 18:34
    0
    hi, is defender 2.5 suitable?