Lenovo 6622-hb1

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  • nbdy
    Senior Member
    • Aug 2015
    • 162
    • Croatia
    #1

    Lenovo 6622-hb1

    Hi,

    Have a problem with the power supply ...

    It's a 715g2538-4 power supply

    The monitor came with a blown fuse,wich I replaced together with the 0.47UF capacitor,and the NTC ...

    But the fuse blows again ...

    Any advice where to look

    Now I have seen that R914 - 0,22ohm 2W is blown , and the C938 has no legs
    Last edited by nbdy; 11-12-2016, 03:27 AM.
    Tags: None
    • nbdy
      Senior Member
      • Aug 2015
      • 162
      • Croatia
      #2
      Re: Lenovo 6622-hb1

      Replaced R914,C938 and Q901 (P10NK70ZFDP with P10NK80ZFP) but the fuse blows again

      Rechecked the diode D901,D900
      Rechecked the capacitor C905,C903

      All other seems OK

      Any advice,

      thx

      pics

      https://www.dropbox.com/s/5vjr4j2jdv...44508.jpg?dl=0

      https://www.dropbox.com/s/3nuf4ngy24...44522.jpg?dl=0

        Comment

        • nbdy
          Senior Member
          • Aug 2015
          • 162
          • Croatia
          #3
          Re: Lenovo 6622-hb1

          Ok, going further ...

          Replaced the BD901 (greatz) and the fuse don't blow ...

          But no 5V,14V on output ???

          Should it be turned on ???

            Comment

            • nbdy
              Senior Member
              • Aug 2015
              • 162
              • Croatia
              #4
              Re: Lenovo 6622-hb1

              Can any one help ???


              thx

                Comment

                • nbdy
                  Senior Member
                  • Aug 2015
                  • 162
                  • Croatia
                  #5
                  Re: Lenovo 6622-hb1

                  Got 9V on the T901 AC on the secundar 320V on primar DC,but no 5V or 14V on exit

                  Can someone help further


                  thx

                    Comment

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