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Backline 115 repair/schematic

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  • Backline 115 repair/schematic

    I have a GK 115 bass amp and the volume lowers or drops out. A schematic would be a big help or any suggestions or experience with this. Thx

  • #2
    Here's one. I think there is a I and II version though so not sure which you have.
    https://music-electronics-forum.com/...vels#post44331
    Originally posted by Enzo
    I have a sign in my shop that says, "Never think up reasons not to check something."


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    • #3
      Got it! It seems to be intermittent, currently working, but I'll get out the heat gun and have a go at it. the schematics will be a BIG help. Thx!

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      • #4
        Any time there is intermittent signal loss, the first thing to check is the FX loop jacks. If a patch cord between FX send and return restores the signal, then they are the source of the issue. Usually when they are at fault they just require a shot of cleaner and some exercise.
        Originally posted by Enzo
        I have a sign in my shop that says, "Never think up reasons not to check something."


        Comment


        • #5
          I tried to upload the service manual I have but it won't let me, file was too big for a new member.
          I got my manuals from here

          https://elektrotanya.com/gallien_kru.../download.html

          https://el34world.com/charts/Schemat...Schematics.htm

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