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G&L L2000 Active PRe-amp Problem?

Discussion in 'Pickups & Electronics [BG]' started by Scott Cutrer, Jun 14, 2001.


  1. Scott Cutrer

    Scott Cutrer Guest

    Aug 21, 2000
    Richmond, VA
    My L2000 seems to work just fine in the passive mode, but when I flip either the active bass boost or active treble boost, the volume actually drops from the passive volume and I get a flat dull signal with no high boost or low boost for either of the active selections. It really does sound great on the passive side, but I am not sure that my active preamp is working. I have changed the battery and the strings and even raised the PUPs. Also it is 10 years old and a fretless, for what it is worth. Any info would be appreciated.
    Scott
     
  2. Brad Johnson

    Brad Johnson Supporting Member Commercial User

    Mar 8, 2000
    Gaithersburg, Md
    Boom Bass Cabinets, DR strings
    I have a 20 year old L2000E that starts to distort in active mode after playing it awhile. It's fine in passive mode. I'd like to find out the cause or about a replacement factory preamp but G&L has been no help.
     
  3. Scott Cutrer

    Scott Cutrer Guest

    Aug 21, 2000
    Richmond, VA
    Brad, That is what I was a fraid of. I have a feeling that G&L wont be around in the next decade or so and am worried about finding replacement parts like an L2000 pre-amp circuit board. Well I guess I will keep trying. I wish there were junk yards for basses!
     
  4. notduane

    notduane

    Nov 24, 2000
    Location
    Hmm...if it's any help, here's a link to the G&L schematics
    page for various models. The docs are PDF, so you'll need
    an Adobe Acrobat type reader.

    If the circuit board ain't dipped in epoxy or somethin',
    maybe make a new one? A trip to Radio Shack...an etch
    pen or resist tape, a piece of copper-clad, and some
    Ferric-Chloride acid...   Craig Anderton's old book "Electronic
    Projects for Musician's
    " had a good section on makin'
    your own circuit boards.
     
  5. Nino Valenti

    Nino Valenti Supporting Member Commercial User

    Feb 2, 2001
    Staten Island NYC
    Builder: Valenti Basses
    I replied to this thread. Where did my entry go? :mad:
     
  6. notduane

    notduane

    Nov 24, 2000
    Location
    e-z MR. B :D You sure it wasn't that other thread you
    started about a very similar topic (G&L preamps)? I recall
    postin' the same schematic link in that one.
     
  7. Nino Valenti

    Nino Valenti Supporting Member Commercial User

    Feb 2, 2001
    Staten Island NYC
    Builder: Valenti Basses
    No. :p:) Scott posted the same thread in "Set up" & I posted in that one.

    http://www.talkbass.com/forum/showthread.php?threadid=19951
     
  8. notduane

    notduane

    Nov 24, 2000
    Location
    D'ohh! Sorry - you're right. Looks like somethin' got
    lost in the move from Setup to Pickups.

    It's the moderator(s) fault! uhhh...Sir(s) :p
     
  9. Nino Valenti

    Nino Valenti Supporting Member Commercial User

    Feb 2, 2001
    Staten Island NYC
    Builder: Valenti Basses
    When all else fails, blame the moderators. LOL :D J/K ;)