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Thread: DT40 pro trimmers labels?

  1. #1
    Join Date
    Jan 2023
    Location
    Argentina
    Posts
    2

    Unhappy Please, does anybody know this DT40 trimmers labels?

    Hi, i have the DT40pro driver attached below from 2017. I need to tune it, but i canīt find a schematic for which trimmer function do ( gain , scale, HF ; LF..etc)
    Does anybody have know?

    Click image for larger version. 

Name:	DT40 Pro trimmers pot.jpeg 
Views:	3 
Size:	110.7 KB 
ID:	59865

    Thanks
    Last edited by FabianM; 01-20-2023 at 08:10. Reason: Urgent

  2. #2
    Join Date
    Sep 2014
    Location
    Colorado USA
    Posts
    793

    Default

    Quote Originally Posted by FabianM View Post
    Hi, i have the DT40pro driver attached below from 2017. I need to tune it, but i canīt find a schematic for which trimmer function do ( gain , scale, HF ; LF..etc)
    Does anybody have know?

    Click image for larger version. 

Name:	DT40 Pro trimmers pot.jpeg 
Views:	3 
Size:	110.7 KB 
ID:	59865

    Thanks
    I would also be interested in FabianM's request since I have a very similar DT40 dual driver amp.

    Click image for larger version. 

Name:	20230127_172028.jpg 
Views:	1 
Size:	4.63 MB 
ID:	59896

    On mine, I'm assuming the two center 10K pots that are oriented differently from the others and can be turned are for X & Y size adjustments.

    EDIT: This helps answer the question. I did just find this JPG in my DT40 files which has labels on most of the trim pots.

    Click image for larger version. 

Name:	DT30-40 Driver1.jpg 
Views:	10 
Size:	86.4 KB 
ID:	59897
    Last edited by lasermaster1977; 01-27-2023 at 16:02.
    ________________________________
    Everything depends on everything else

  3. #3
    Join Date
    Jan 2023
    Location
    Argentina
    Posts
    2

    Default

    Thank you lasermaster1977!! I remember tuning this controller up to 36k many years ago. Now, after 3 years without using them due to the pandemic, they became very unstable. I'm thinking maybe the problem may be the SD/DMX/Ilda board that is pre-driver. At the time I needed to replace one with a defective capacitor (low quality) when it was new...


    Quote Originally Posted by lasermaster1977 View Post
    I would also be interested in FabianM's request since I have a very similar DT40 dual driver amp.

    Click image for larger version. 

Name:	20230127_172028.jpg 
Views:	1 
Size:	4.63 MB 
ID:	59896

    On mine, I'm assuming the two center 10K pots that are oriented differently from the others and can be turned are for X & Y size adjustments.

    EDIT: This helps answer the question. I did just find this JPG in my DT40 files which has labels on most of the trim pots.

    Click image for larger version. 

Name:	DT30-40 Driver1.jpg 
Views:	10 
Size:	86.4 KB 
ID:	59897

  4. #4
    Join Date
    Sep 2014
    Location
    Colorado USA
    Posts
    793

    Default

    Glad it helped!

    It helped remind me that I bought my DT40Pro galvos and drivers back in 2017-18 (never been used as yet) and I need to finish the RGB projector I bought them for.

    ________________________________
    Everything depends on everything else

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