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VIEW FULL LIVE VERSION : G&L L2000 Active PRe-amp Problem?


Scott Cutrer
06-14-2001, 01:57 PM
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

Brad Johnson
06-16-2001, 11:03 AM
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.

Scott Cutrer
06-16-2001, 12:31 PM
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!

notduane
06-16-2001, 12:56 PM
Hmm...if it's any help, here's a link (http://www.glguitars.com/schematics/index.htm) 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 (http://www.radioshack.com/)...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 (http://www.stewmac.com/catalog/1.asp?name3=Electronic_Projects_For_Musicians)" had a good section on makin'
your own circuit boards.

Nino Valenti
06-16-2001, 09:11 PM
I replied to this thread. Where did my entry go? :mad:

notduane
06-16-2001, 09:25 PM
Originally posted by Nino-Brown
I replied to this thread. Where did my entry go? :mad:
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.

Nino Valenti
06-17-2001, 08:53 AM
Originally posted by notduane

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. No. :P:) Scott posted the same thread in "Set up" & I posted in that one.

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

notduane
06-17-2001, 02:34 PM
Originally posted by Nino-Brown
No. :p:) Scott posted the same thread in "Setup"
& I posted in that one.
http://www.talkbass.com/forum/showthread.php?threadid=19951
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

Nino Valenti
06-18-2001, 08:24 AM
Originally posted by notduane

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 When all else fails, blame the moderators. LOL :D J/K ;)