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Thread: What galvo set did I get?

  1. #1
    Join Date
    Apr 2010
    Posts
    35

    Default What galvo set did I get?

    Hello again! Happy new year!

    I "rolled the dice" on a Chinese galvo set, and although I got something I'm not exactly sure what I did get. I think they might be PT-A40 galvos, PT-40K amps, and some 3rd party mounting block based on dimensions from PT website.

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    Also, the power supply is a 60W 24V supply. 1.5A on the positive rail, and 1.0A on the negative. The ebay listing made me think I'd be getting a 72W dual 1.5A supply, but the PT manuals list 1.0A max is OK. All good then? I like the smaller size, if so!

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    Also, I've got some weird extra cables that seem to go to a +/-15V supply on the driver boards. I am assuming this is for powering a "show card" and I shouldn't need these, right?

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    Finally, what the heck happened to RIYA? And has my Riya lite always been TTL? I thought it was 8 bit analog! Does anyone have the original install set for this thing? Seems to be lost to the internet otherwise...

  2. #2
    Join Date
    Mar 2015
    Location
    Cambridgeshire, England
    Posts
    401

    Default

    Not sure if they'e 40K, but they look identical to a 20K set I have; the extra cables go to a different version of the PSU which has the JST connectors on the PCB rather than screw terminals. Note that the PSU that came with mine was 50W, +/- 15V at 0.5A and 12V at 1.5A

  3. #3
    Join Date
    Mar 2010
    Location
    Raleigh, NC
    Posts
    2,020

    Default

    Quote Originally Posted by pontiacg5 View Post

    Finally, what the heck happened to RIYA? And has my Riya lite always been TTL? I thought it was 8 bit analog! Does anyone have the original install set for this thing? Seems to be lost to the internet otherwise...
    Riya Lite DACs are 8 bit analog on the color channels.

  4. #4
    Join Date
    May 2007
    Location
    Authentic Asian food area of SoCal
    Posts
    2,400

    Default

    Most definitely PT-40s. I have several sets of those. The A40 scanners and amps are different. Still, I have never had any problems with my PTs, they are good scanners for the cost, especially if you got a good deal on them.
    Last edited by absolom7691; 01-01-2019 at 07:47.

  5. #5
    Join Date
    Apr 2010
    Posts
    35

    Default

    Ah, I just thought the PT-30K's were like 30mm diameter around what I assume is the feedback potentiometer or whatever it is. These ones are only 18mm or so which matches the drawings for the PT-A40s. The e-bay seller told me this power supply is fine, then they edited the e-bay listing and removed the amperage values that were there! I got these for $275 best offer, from DJSlighting, not sure if that's good or not!

    And my RIYA Lite is for sure broken, then! Using the TestRIYA app all my color channels are sitting at 0.03V. If I lower the sliders at all the voltage will jump to 5.03V. It won't change value again, just sticks at 5V unless you raise it to max again and then it turns back off. Some kind of weird inverted TTL?

    Thing is, I know it used to work, it's just been several years. Now RIYA doesn't seem to exist anymore, and I don't have the original install CD I got from Andrew. Does anyone have the original installer? The one I got from Andrew seemed incomplete for some reason. I member more apps than just this TestRIYA one I have now... Thank you guys!!

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