L2000E help please

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L2000E help please

Postby woodfixer » Sun Oct 13, 2013 2:19 pm

I got a 1981 L2000E and it is wired wrong. It runs down the battery even when left in passive mode unpluged.
If someone has the schmatic or can give me the correct wiring from the battery, I could probably figure out the rest.
I would be very grateful for any help. John
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Re: L2000E help please

Postby bdgotoh » Sun Oct 13, 2013 10:40 pm

If you could post a picture of the underside of your control plate that would make it easier to diagnose. Nice and big and focused around the jack area and we should be able to help out.
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Re: L2000E help please

Postby woodfixer » Mon Oct 14, 2013 9:07 am

I am sure the issue is from either the blk & red wires from battery or
the blk wire from the eq switch, which I grounded to the pot.
These came off when it was opened up by the guy I bought from.
Only the battery leeds and the heavy blk wire on eq switch (which I am not even sure was there) were boken off.
The electronics work fine just runs down battery even when unplugged in passive position.
I know this bass will run down the battery unpluged, but not supposed to if in passive mode.
Do I need a better pic? Thanks again..really appreciate any help. John
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Re: L2000E help please

Postby Golem » Mon Oct 14, 2013 1:57 pm

`
The Climax will run down its battery even unplugged.
The L2000e is not spozed to do that. Mine does not.
That makes me think the output jack is not acting as
the power switch, which is something it SHOULD do.
It may be wired wrong, or a wrong replacement part.

It's hard to judge from the pix but it seems that the
two green wires at the jack are your 9v supply and
that only when the sleeve of the plug interconnects
the two green wires should 9v flow from the battery.
Some of the solder work looks less than neat in that
area. Make sure there's no accidental connection of
the two greens when the plug is not plugged in. Not
really an expert myself, but I did find some pix that
may help.

Here's a pic of a slot pole "e", with pre-amp board
lifted away from the pots:

http://img.photobucket.com/albums/v186/ ... 2KE003.jpg

And here's a schematic, for "early" L2k, but maybe
not as early as the "e". Not for me to say ....

http://www.glguitars.com/schematics/ASA ... rsion1.pdf

The pix are from this forum's sticky threads.

New basses are red. Used basses are black.
- - ---- -- - --- - - - --- - ---- -- - - --- - -- - -

In a perfect world
At the end of the day
Tomorrow never comes.
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Re: L2000E help please

Postby Ken Baker » Mon Oct 14, 2013 3:21 pm

woodfixer wrote:I got a 1981 L2000E and it is wired wrong. It runs down the battery even when left in passive mode unpluged.
If someone has the schmatic or can give me the correct wiring from the battery, I could probably figure out the rest.
I would be very grateful for any help. John


Looking at the images, it's clear that the jack isn't original. It's not even the same type as the original. While the jack in your images can be adapted for use in your bass' circuit, that didn't happen here.

This should help you. There are links for the correct jack as well as a link for sourcing it.

Ken...
...at least the doctors find me fascinating...
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Re: L2000E help please

Postby woodfixer » Mon Oct 14, 2013 4:53 pm

Hey thanks, my first thought was the jack is not the right one but due to the disconnected wires thought it was the wiring. I am now on the right track!
This jack has a spliter that touches together the hot poles when you pull out the jack. I isolated this and gonna see if this helps. Thanks for the links Ken. [smilie=smilie_kopf.gif]
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Re: L2000E help please

Postby Ken Baker » Mon Oct 14, 2013 5:59 pm

Looking closer....

The "spliter", as you call it, is a switch. You would want it to open when a plug is removed for the jack to be adaptable. As it is, all you'd be able to get is what you've got.

If it were my bass, I'd replace the jack with the one that should be there.

Ken...
...at least the doctors find me fascinating...
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Ken Baker
"Turn the darned thing down!!"
 
Location: Orange County, CA

Re: L2000E help please

Postby woodfixer » Mon Oct 14, 2013 9:31 pm

Ken, Actually it makes contact when the jack is removed, opens when in.
All I had to do is put a piece of electrical tape between the contact point, but will be replacing.
Thanks!
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Re: L2000E help please

Postby woodfixer » Thu Oct 17, 2013 4:50 pm

Hey Golem, you were dead right! Thanks for the responses.!
"Make sure there's no accidental connection of
the two greens when the plug is not plugged in. Not
really an expert myself, but I did find some pix that
may help."
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woodfixer
 

Re: L2000E help please

Postby Golem » Fri Oct 18, 2013 4:32 pm

`
You're welcome.

Looks like the jack you've got is of the type thaz used
[frinstintz] for an extension speaker jack on a combo
when the built-in speaker is spozed to automatically
cut out when the extension is plugged in.

New basses are red. Used basses are black.
- - ---- -- - --- - - - --- - ---- -- - - --- - -- - -

In a perfect world
At the end of the day
Tomorrow never comes.
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Golem
 


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