Jackson/Charvel JE1200 schematic

Pickups, wiring schemes, switch techniques and onboard active electronics for guitars

Jackson/Charvel JE1200 schematic

Postby Ice-9 » 03 Sep 2009, 17:50

here is a trace i have made from my charvel model 4 actives in case its of interest to anyone.

Its a vol,tone and mid boost.

Image
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !

No silicon heaven ? preposterous ! Where would all the calculators go ?
User avatar
Ice-9
Transistor Tuner
 
Posts: 1057
Joined: 31 Mar 2009, 16:29
Has thanked: 139 times
Have thanks: 357 times

Re: Jackson/Charvel JE1200 schematic

Postby nickthemen » 04 Sep 2009, 00:12

That one with a ? is 220k in the schematic i have.
nickthemen
Breadboard Brother
 
Posts: 56
Joined: 12 Jul 2007, 10:35
Has thanked: 29 times
Have thanks: 11 times

Re: Jackson/Charvel JE1200 schematic

Postby Ice-9 » 05 Sep 2009, 22:11

nickthemen wrote:That one with a ? is 220k in the schematic i have.



Does your schematic check out the same as mine. (I RE'd mine from my own guitar, would be great if yours is the same which would verify mine)
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !

No silicon heaven ? preposterous ! Where would all the calculators go ?
User avatar
Ice-9
Transistor Tuner
 
Posts: 1057
Joined: 31 Mar 2009, 16:29
Has thanked: 139 times
Have thanks: 357 times

Re: Jackson/Charvel JE1200 schematic

Postby jbrew73 » 14 Sep 2009, 23:51

is there any chance someone has the je2000 bass preamp schematic?
jbrew73
 
Posts: 17
Joined: 12 Aug 2008, 02:53
Has thanked: 0 time
Have thanks: 0 time

Re: Jackson/Charvel JE1200 schematic

Postby nickthemen » 17 Sep 2009, 09:42

Yep my schematic is the same!
nickthemen
Breadboard Brother
 
Posts: 56
Joined: 12 Jul 2007, 10:35
Has thanked: 29 times
Have thanks: 11 times

Re: Jackson/Charvel JE1200 schematic

Postby rhandy gaye » 08 Oct 2009, 12:03

The following pics/work are not mine so, I can take no credit and don't know of any mistakes. I downloaded them yonks ago and found them on a disc the other day.

I was going to build it but, never got around to it.
You do not have the required permissions to view the files attached to this post.

For this message the author rhandy gaye has received thanks: 3
alemoralab (04 May 2012, 02:16), mickerules (06 Oct 2012, 18:23), modman (29 Mar 2018, 18:55)
User avatar
rhandy gaye
Solder Soldier
 
Posts: 172
Joined: 21 Apr 2008, 12:30
Location: TASMANIA Australia
Has thanked: 3 times
Have thanks: 21 times

Re: Jackson/Charvel JE1200 schematic

Postby SPeter » 08 Oct 2009, 19:04

Thanks! :applause:
Is that verified!
:)
SPeter
Cap Cooler
 
Posts: 573
Joined: 08 Jan 2008, 22:10
Has thanked: 7 times
Have thanks: 76 times

Re: Jackson/Charvel JE1200 schematic

Postby rhandy gaye » 09 Oct 2009, 00:59

Don't know if it is verified but, the layout and traces are very very close to the original (looking at photos), ie this is almost exaclty a je-1200.
User avatar
rhandy gaye
Solder Soldier
 
Posts: 172
Joined: 21 Apr 2008, 12:30
Location: TASMANIA Australia
Has thanked: 3 times
Have thanks: 21 times

Re: Jackson/Charvel JE1200 schematic

Postby rhandy gaye » 09 Oct 2009, 01:04

pic from brochure
You do not have the required permissions to view the files attached to this post.
User avatar
rhandy gaye
Solder Soldier
 
Posts: 172
Joined: 21 Apr 2008, 12:30
Location: TASMANIA Australia
Has thanked: 3 times
Have thanks: 21 times

Re: Jackson/Charvel JE1200 schematic

Postby rhandy gaye » 28 Oct 2009, 14:33

found this in google japan
You do not have the required permissions to view the files attached to this post.
User avatar
rhandy gaye
Solder Soldier
 
Posts: 172
Joined: 21 Apr 2008, 12:30
Location: TASMANIA Australia
Has thanked: 3 times
Have thanks: 21 times

Re: Jackson/Charvel JE1200 schematic

Postby kdmay » 05 Apr 2010, 11:10

Just what I've been looking for!!

I am currently building a Keeley Katana pre amp. Awesome pedal, which takes my amp (local Australian built modern plexi) to new heights. I am looking to incorporate a switchable mid boost following the preamp (I might even try to incorporate a pre/post switch, but first things first....).

Anyway, I have a few questions/proposals if someone can help:

- given this will be following a pedal pre amp, I am assuming I omit VR1
- what is the purpose of R2 @ 220k?
- I am going to replace VR2 with a fixed 50k resistor, as I don't need a volume control (level will be dictated by the Katana)
- I am going to omit VR3, as I simply want a fixed mid boost and don't need a mix control. I am assuming I simply take the output of R4 to the Pot of my Katana level control. Although I could wire this post the Katana Pot, which I guess would apply a mid boost to an attenuated signal vs attenuate a preamp/mid boost signal.

Any help on the above would be appreciated!

One for the breadboard tonight.......

Cheers
User avatar
kdmay
Breadboard Brother
 
Posts: 57
Joined: 12 Oct 2009, 02:55
Has thanked: 0 time
Have thanks: 0 time

Re: Jackson/Charvel JE1200 schematic

Postby rhandy gaye » 07 Apr 2010, 12:02

what you wanna do sounds cool, i'm gonna have a think about what you've written.

for now though, i wouldn't leave out any pots, but put trim pots in so you can muck around with some settings.
User avatar
rhandy gaye
Solder Soldier
 
Posts: 172
Joined: 21 Apr 2008, 12:30
Location: TASMANIA Australia
Has thanked: 3 times
Have thanks: 21 times

Re: Jackson/Charvel JE1200 schematic

Postby kdmay » 07 Apr 2010, 13:54

I've just finished breadboarding it - relatively high component count (for me anyway, say compared to the Katana), so a little time consuming!

Off to the studio tomorrow night to have a listen (and make sure it works/I've done it right)!

Will report back......
User avatar
kdmay
Breadboard Brother
 
Posts: 57
Joined: 12 Oct 2009, 02:55
Has thanked: 0 time
Have thanks: 0 time

Re: Jackson/Charvel JE1200 schematic

Postby alemoralab » 04 May 2012, 02:07

a mi me funciono perfecto se escucha muy bien.
alemoralab
 
Posts: 1
Joined: 09 Aug 2011, 20:51
Has thanked: 1 time
Have thanks: 0 time

Re: Jackson/Charvel JE1200 schematic

Postby 95H » 23 Mar 2018, 20:59

Hi,

schematic reup possible?

Thanks in advance.
User avatar
95H
 
Posts: 16
Joined: 15 Mar 2018, 06:14
Location: Berlin
Has thanked: 18 times
Have thanks: 4 times

Re: Jackson/Charvel JE1200 schematic

Postby EddieTavares » 24 Mar 2018, 00:12

I am not sure if it's correct, I found it in a russian forum.

Image
User avatar
EddieTavares
Breadboard Brother
 
Posts: 93
Joined: 12 Jan 2010, 14:43
Has thanked: 3 times
Have thanks: 13 times

Re: Jackson/Charvel JE1200 schematic

Postby EddieTavares » 24 Mar 2018, 00:29

It works closer to Demeter Fat Control.
User avatar
EddieTavares
Breadboard Brother
 
Posts: 93
Joined: 12 Jan 2010, 14:43
Has thanked: 3 times
Have thanks: 13 times

Re: Jackson/Charvel JE1200 schematic

Postby 95H » 24 Mar 2018, 04:49

Hi,

Thanks. Finally I found that thread too. There ist a hand drawn schem going with the shown PCB further above in this thread all from that Russian forum.

Perhaps someone can verify this schem. OP Amp = LF442CN

P7160001.jpg
jax_top.gif
You do not have the required permissions to view the files attached to this post.

For this message the author 95H has received thanks:
modman (29 Mar 2018, 18:55)
User avatar
95H
 
Posts: 16
Joined: 15 Mar 2018, 06:14
Location: Berlin
Has thanked: 18 times
Have thanks: 4 times

Re: Jackson/Charvel JE1200 schematic

Postby Ice-9 » 26 Mar 2018, 18:45

95H wrote:Hi,

Thanks. Finally I found that thread too. There ist a hand drawn schem going with the shown PCB further above in this thread all from that Russian forum.

Perhaps someone can verify this schem. OP Amp = LF442CN

P7160001.jpg
jax_top.gif


Yeah, I traced that hand drawn schematic from my own model 4 charvel the LF442CN is correct, it is a low power IC which helps with the battery power consumption.
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !

No silicon heaven ? preposterous ! Where would all the calculators go ?

For this message the author Ice-9 has received thanks:
95H (26 Mar 2018, 19:21)
User avatar
Ice-9
Transistor Tuner
 
Posts: 1057
Joined: 31 Mar 2009, 16:29
Has thanked: 139 times
Have thanks: 357 times


Return to Electric Guitar Rewiring

Who is online

Users browsing this forum: No registered users and 3 guests