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UMAX Gemini D-16 Scanner

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    #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.
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    #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.

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      #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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