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Thread: durst power supply EST 1000N

  1. #21

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    Re: durst power supply EST 1000N

    Kind of why I bought a DeVere. Wish someone on the list with the knowledge and skills would agree to fix these Durst power supplies, for a fee of course, to keep them working. I'd gladly pay someone if my enlarger were sick!
    Last edited by Luis-F-S; 13-Aug-2019 at 15:02.

  2. #22

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    Elk Grove, CA
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    Re: durst power supply EST 1000N

    Quote Originally Posted by Klassila View Post
    Hi,

    I also have a problem with my 1840 Durst and the EST 1000N transmitter. When the enlarger is turned on the lamp lights up but only with very dim light. It worked properly for some time but then one time I tried this was the case. The enlarger is obviously very old. Any idea where the problem might be?

    Cheer, Katri
    Sounds like bad caps. See if you can get the values off the schematic and replace your caps. Most power supply issues stem from the electrolytics going bad. Sometimes, they'll even look bloated or leaky. Can't hurt to replace them, even if they're still good.

  3. #23
    ic-racer's Avatar
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    Re: durst power supply EST 1000N

    He indicated it is 'very old' but not the case. This is not 400V tube equipment. This is a switched mode PMW power supply. The main DC power supply filter cap is only 40V.

  4. #24

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    Dec 2008
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    9

    Re: durst power supply EST 1000N

    My EST 1000 is now working! The electronics engineer repaired it. He replaced the capacitors С6, с12, с31, с52, с60, с61.

  5. #25

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    Re: durst power supply EST 1000N

    Quote Originally Posted by macmicus View Post
    My EST 1000 is now working! The electronics engineer repaired it. He replaced the capacitors С6, с12, с31, с52, с60, с61.
    Wonderful, if he wants to fix other units, I'm sure there will be plenty of takers. L

  6. #26
    ic-racer's Avatar
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    Re: durst power supply EST 1000N

    Quote Originally Posted by macmicus View Post
    My EST 1000 is now working! The electronics engineer repaired it. He replaced the capacitors С6, с12, с31, с52, с60, с61.
    Good news!

    The Durst circuit boards are very repairable. The component density is low and the 'through-hole' components are easy to source. Unlike almost every other electrical device made currently.

    Click image for larger version. 

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  7. #27

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    Feb 2020
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    1

    Re: durst power supply EST 1000N

    Hi Everybody,
    Like other people ,
    I'm looking for a good quality copy of durst power supply EST 1000N schematics , cause mine has few hours on the clock , and some components has heated (too much ) and consequently i can't read specs on them (especially zener diodes )...
    I would really appreciate that ...cause I'm stuck !
    Thanks a lot for your help !
    Regards,
    Nick

  8. #28

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    Jan 2021
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    1

    Re: durst power supply EST 1000N

    Good evening !
    I'm also looking for the schematics of the EST 1000N !
    If someone have it, could he sent it by mail to me ?
    Thank you !

  9. #29

    Re: durst power supply EST 1000N

    I also need schematics please!
    Actually, can't this be uploaded somewhere so those who have it won't need to send in email every time someone asks for it..?

    Thanks in advance whoever will be kind enough to share it with me!

  10. #30
    ic-racer's Avatar
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    Re: durst power supply EST 1000N

    Quote Originally Posted by jerrybenko View Post
    I also need schematics please!
    Actually, can't this be uploaded somewhere so those who have it won't need to send in email every time someone asks for it..?

    Thanks in advance whoever will be kind enough to share it with me!
    Trying: https://www.photrio.com/forum/thread...-files.180788/

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