Brimax lm17mx backlight problem

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  • DeniS182
    Badcaps Veteran
    • Jun 2014
    • 328
    • Slovakia
    #1

    Brimax lm17mx backlight problem

    Hi,
    Can you help me? I need recognize what types of transistors are used on this board. Have someone a schematic or service manual of this lcd monitor?
    Thanks for answer.
    Attached Files
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    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 30965
      • Albion
      #2
      Re: Brimax lm17mx backlight problem

      first you need to resolder the large transformers.

      the fet's are probably these.
      Attached Files

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        • DeniS182
          Badcaps Veteran
          • Jun 2014
          • 328
          • Slovakia
          #3
          Re: Brimax lm17mx backlight problem

          Thanks for answer. Can you specify which fet is Q205 and which is Q208? And where I can buy it? I can't find them on any e-shop in my country and in ebay too. Can you help me how to find them or some replacements?

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 30965
              • Albion
              #4
              Re: Brimax lm17mx backlight problem

              q205 is the AP40p03g

              q208 is the AP30t03g

              you need to look at the type (N or P) the voltage, current and on-resistance in the datasheet.
              then find a similar part that you can get locally.

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