UMAX Gemini D-16 Scanner

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  • japlytic
    Badcaps Legend
    • Oct 2005
    • 2086
    • Australia
    #1

    UMAX Gemini D-16 Scanner

    When I was cleaning a UMAX Gemini D-16 scanner, I found that C7 on the Scanner Assembly PCB was bulging (Matsushita 47uF 25V general purpose). This capacitor had PCB tracks going to the CCFL inverter module connector.
    I replaced it with a 47uF 50V unit (was the 25V unit originally underrated?)
    My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.
    Tags: None
    • kc8adu
      Super Moderator
      • Nov 2003
      • 8832
      • U.S.A!
      #2
      Re: UMAX Gemini D-16 Scanner

      most scanner ccfl inverters run from 12v.
      i snag the inverter and tube from obsolete/scrap ones before they hit the dump.

        Comment

        • PeteS in CA
          Badcaps Legend
          • Aug 2005
          • 3583
          • USA, Unsure of Planet
          #3
          Re: UMAX Gemini D-16 Scanner

          Maybe the cap is the I/P filter cap and should be a low impedance, 105C type.
          PeteS in CA

          Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
          ****************************
          To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
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