1604 VLZ PRO Mackie mixer schematic / advice please

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  • zen
    Badcaps Veteran
    • Apr 2011
    • 511
    #1

    1604 VLZ PRO Mackie mixer schematic / advice please

    Hi all , this unit has an issue on the back end input board .

    Flexing the board causes cracking & distorted audio .

    Struggling to isolate cause .
    Attached Files
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    • CapLeaker
      Leaking Member
      • Dec 2014
      • 8133
      • Canada
      #2
      Re: 1604 VLZ PRO Mackie mixer schematic / advice please

      figure out on where the problem lies by flexing or poking with a wooden spoon at things or heating up or freezing certain areas. Maybe you could isolate down to an area, then resolder or reflow it. Sometimes you have to totally desolder the offending part, clean the through hole and put it back in.
      Last edited by CapLeaker; 03-12-2022, 10:34 AM.

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        • zens electronics
          Member
          • Jan 2021
          • 31
          • uk
          #3
          Re: 1604 VLZ PRO Mackie mixer schematic / advice please

          Cheers , but issue is so sensitive .

          Tried heat / freeze aswell

          Most components on the board are SMD types , which are so difficult to access , as ports in the way .

          Absolute nightmare to work on .

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