dukane optoma

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • claybv
    New Member
    • Mar 2008
    • 8

    #21
    Re: dukane optoma

    It is common to smoke or blacken when rectifier circuit goes. BE SURE TO CHECK YOUR DIODES too!!! Black barrel looking with grey stripes,labeled on board starts with D###,I dont know how much you deal with circuits.
    I'm used to dukanes with less than 5 component system. usually rectifier,diode and fuse. Hope You get it going.
    claybv

    Comment

    • claybv
      New Member
      • Mar 2008
      • 8

      #22
      Re: dukane optoma

      okay,
      I was thinking about your issue here.Dukane kinda went nuts with this model.The current you have going through a projector is enough that it is not necessary for a fuse;point in case is lamp would actually act as fuse. It would probably be easier to replace LAMP instead of dealing with fuse and and in your case,a circuit full of components.
      If You check around or if you know about it enough you can use " independent rectifier" (one component) provided you have at least a 6amp manual on/off switch in circuit.eliminating circuit board FULL of unnecessary components. A 6amp-10amp bridge rectifier like dukane's simpler model projectors use should work fine.

      hope this helps...
      claybv

      Comment

      • claybv
        New Member
        • Mar 2008
        • 8

        #23
        Re: dukane optoma

        well,with your model you would have to just modify circuit in area on board,with bridge rectifier. so scratch that idea....
        claybv

        Comment

        • kc8adu
          Super Moderator
          • Nov 2003
          • 8832
          • U.S.A!

          #24
          Re: dukane optoma

          this one uses a metal halide short arc lamp and has to have the electronics to start/run it.

          Comment

          Related Topics

          Collapse

          • corrize
            A funny fuse story – Lumix LX100 II
            by corrize
            Hello, I disassembled this dead camera, and found this WTF… Two fuses soldered one above the other !
            I was pretty sure nobody touched it before, but that can't be from factory. There is flux, and capacitor is probably missing.
            The other weird thing : the fuses are « G » fuse : (0.75A – 8V), seems very low. The original fuse should be « O » : (32V 2,5A).
            There is « O » mark beside. All fuses have the same mark letter on main board. So, I can deduce it's a « O » fuse.
            And this correspond to the issus I saw : when I plug the battery, I measure the voltage dropping...
            10-19-2023, 09:58 AM
          • Document Archive
            Lenovo ThinkPad P51s + ThinkPad Stack Mobile Projector Mobile workstation P Specification for Upgrade or Repair
            by Document Archive
            This specification for the Lenovo ThinkPad P51s + ThinkPad Stack Mobile Projector Mobile workstation can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the P51s + ThinkPad Stack Mobile Projector boardview and P51s + ThinkPad Stack Mobile Projector schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum....
            09-06-2024, 06:11 AM
          • jesterace
            Samsung UE46ES8000 Blown fuse but no other signs of short
            by jesterace
            Hi I wonder if anyone might be able to steer me in the right direction. I have this Samsung UE46ES8000 TV and it went bang during use. The main fuse on the PSU board is open. I've checked every diode/mosfet/transistor I can see and nothing appears to be short to cause the fuse to go. The DC output of the bridge rectifier is not short either. I've seen online that some of these models are known for having their PFC mosfet or other mosfets shorting and blowing the fuse but i'm not seeing that here. If anyone aware of these models having any issues to cause this? I'm reluctant to just replace the...
            09-11-2024, 03:14 PM
          • jshhh
            Help replacing fuse on my Mimaki CJV300-160 vinyl printer
            by jshhh
            Hi guys,

            I'm inexperienced with electronics repairs, I've done a little bit of soldering caps and whatnot, but i have a blown fuse on this mimaki printer I got which I have bought a replacement for.

            How do I remove this type of fuse (see picture)...it kinda looks like it would pull out of that bracket but it didn't come at first pull and I didn't want to brute force it incase it's soldered on there like most of the rest of the components.

            Anybody know how to remove this type of fuse?

            (The fuse is toward the bottom of the image labeled F2)...
            06-17-2025, 01:35 AM
          • drykid
            Matsui 175S microwave fuse replacement
            by drykid
            Hi,

            I recently picked up a used Matsui 175S microwave that was powering up (starts, turntable rotates) but not heating. From looking online the most likely culprit was the fuse, but unfortunately in this one the fuse had heated up and fused with the (badly designed) fuse holder and couldn't be removed. I guess this might indicate further issues beyond the fuse itself but at this stage I just want to replace the fuse and see how I go from there.

            Anyway since I couldn't get out the fuse itself the easiest fix was to replace the fuse holder assembly that runs between the...
            12-21-2020, 01:15 PM
          • Loading...
          • No more items.
          Working...