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schematic needed for gk backline 112 combo

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  • schematic needed for gk backline 112 combo

    Hello, all. Newbie here. I've been following your forum for a while and have viewed some very valuable info on here, so I decided to join up.
    On to my quest. I am in need of a schematic for a GK Backline 112 combo. Having some fuse issues after replacing a few o/p transistors, and I'm concerned with where the variable resistor onboard, that I believe is a bias adjustment in series with some of the backwall transistors, is supposed to be set. If anybody has a copy of this schematic, please let me know. thanks.

  • #2
    GK Schematic

    Here is the service manual.

    Steve


    Gallien Krueger BackLine 112 Service Manual.pdf

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    • #3
      Thanks so much, Steve. You are an awesome fella!

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      • #4
        Hi guys, any chance either of you could send me the Backline 12 schematic? I have one in the shop and the schematic would be a huge help! (the link above appears to be dead)

        Thanks,
        Sam
        Last edited by s_lloyd@verizon.net; 10-12-2015, 03:49 PM. Reason: additional info
        Swell Sound Electronics
        [url]www.swellsoundelectronics.com[/url]

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        • #5
          Not too sure if Backline 12 was a misprint but here is the BL 112.

          gallien-krueger_backline_bl-110_112_sm.zip

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