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Thread: chinese laer help

  1. #1
    Join Date
    Apr 2011
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    Default chinese laer help

    hey all i need some help with this laser that i bought
    http://laserpointerforums.com/f44/ch...elp-62252.html

    cheers ace

  2. #2
    soforene's Avatar
    soforene is offline The Troll formerly known as Herbert Von Poople-Futtocks
    Join Date
    Aug 2007
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    2,921

    Question

    Ask your mate for your $50 back or get him to demo it working.
    Did it come with the top off (tampered with) or have you been "having a go" to fix it yourself?

  3. #3
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    Default

    Looks like he sold you a piece of junk. Then again, for only $50, you sort of had to expect that.

    Agree with Soforene above: get your buddy to demo it for you.

    Adam

  4. #4
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    Apr 2011
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    i had the top off an was having a look

    ive seen it work at a club before just dont know what software they were using

  5. #5
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    Default

    for 50$ you shouldn't expect much.
    anyway you still need software.
    Does this thing have a DB25 cable? *ilda port* if you don't know what it is: it looks like a printer port (this has to be on the projector itself)
    anyways even if that thing works, I doubt it has any safety hardware in there.

    *edit*
    Just looked at the back of that projector

    It has no DB25 connection but only an com port >.>
    erm........

  6. #6
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    Default

    so no luck im guessing

  7. #7
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    Default

    I'm thinking the serial port is for a plug-in interlock of some kind. That's pretty common on cheaper projectors.

    The fact that it has no 25-pin ILDA port means that there probably is no software to run it. In all likelihood it was just running off an internal pre-programmed pattern board - perhaps with some sort of sound-to-light feature. This is also common on cheaper projectors.

    Since you said you saw it working, ask your friend if there is a "dongle" that plugs into the 9-pin serial port on the back. If not, then ask him to come over and show you how to operate the unit.

    Adam

  8. #8
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    Apr 2011
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    would the dongle have a show programed on it?

  9. #9
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    No.

    It would just be a removable device (probably one that only shorted a couple pins together) that would cause the projector to shut down whenever it was removed. It would be no larger than the cable-end on a 9-pin serial cable. It wouldn't even have any wires coming out of it. (The pins would be shorted internally).

    The projector you have is almost certainly *NOT* programmable. That means whatever it is capable of displaying now is all it will ever display.

    By comparison, a projector with a 25-pin ILDA port can accept signals from an external laser controller (also called a DAC) that is connected to a computer. So you can use the DAC to run new shows that you program yourself on the computer.

    Projectors with ILDA ports may also have a pre-programmed pattern board built-in, but when you get tired of those pre-programmed patterns you can hook your controller and computer up to it and run all sorts of different shows. Sadly, your projector does not appear to support this.

    Adam

  10. #10
    Join Date
    Apr 2011
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    Default

    starting to make sence no

    Any chance i could (short) the wires out myself to get it to fire up

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