1989 Jem Wiring Assistance Please - Jemsite
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post #1 of 5 (permalink) Old 03-23-2018, 03:49 AM Thread Starter
 
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1989 Jem Wiring Assistance Please

Hi All

New to the forums, would like to ask for assistance in wiring for
a 1989 Floaral Patteren Jem. I am the orginal owner and stupidly
had repalced the orginal bridge pickup with an EMG 85 pickup and
sold the orginal (I Know I know) in the early 90's

I have bought a Dimarzio evolution which follows the
same color and output(fairly close) the wiring also
appears to be a match to the orginal

In trying to put it back I have found that the wiring is a lot more
complicated than I thought. I realize that my explantion will not use
the correct terminaolgy so please excuse my ignorance and crudeness

After scouring both this site and the web I decided that this diagram
best relates to my specfic Jem and the stock VLX53 5 way selector switch
it came with (no I haven't changed it)

I have attached the diagram I am following and after numerous failed attempts I decided to go
to the basics. In using basic logic that pickups work like a speaker
(there is a Postive lead and a negative lead) I took the switch out
of the guitar and used a multi meter to check continuity.

The results make me think either I am not finding or following the
correct wiring diagram. Or the VLX53 switch has become faulty somehow
Again please excuse the crudeness of the explanation I have attached a stock photo of the same switch

I have attached a crude diagram I made and numbering I have created for this post

Using a multi-meter and testing for continuity without anything connected to the switch here is what I found:

Pin 5 and 8 - Continuity (Bridge Pickup Postion 1)

(Move selector one postion from right to left)

Pin 5 7 and 8 - Continuity (Bridge and Single Coil Postion 2)

(Move selector one postion from right to left)

Pin 5 and 7 - Continuity (Single Coil Postion 3)

(Move selector one postion from right to left)

Pin 1 2 and 4 - Continuity (Neck and Single Coil Postion 4)

(Move selector one postion from right to left)

Pin 1 and 4 - Continuity (Neck Postion 5)

As you can see from my tests neither pin 3 nor pin 6 ever have continuity
Further if we use the crudness that pickups and follow speaker logic (postive
and negative lead) since all negative leads are grounded the 5 way
selector switch only switches between the postive output of either the
Humbucker or Single coil.

If I follow the diagram I have included we never get output until the selector
hits postion 4 as pin 5 is not supposed to be connected.I naturally have
experminated and bridged pins 4 and 5 and outputed this to the volume pot
which somewhat works but then I have to completley disregard the wiring diagram

And this is where I am at....completely lost.

My first question....Is the VLX53 faulty as pins 3 and 6 never show continuity?

It seems strange but if so and the switch has continuity as follows:

Pin 5 and 8

Pin 5 7 and 8

Pin 5 and 7

Pin 1 2 and 4

Pin 1 and 4

Is there a way I can use the switch as is. Excuse my ignorance but if I bridge
pins 4 and 5 as my output to the volume I think it should work I just need to know
the wires/colors that should connect to which pin

Thank you in advance for any advice it is greatly appreciated!!
Attached Images
File Type: jpg Switch.jpg (35.0 KB, 8 views)
File Type: jpg pins.jpg (9.5 KB, 10 views)
File Type: jpg jem777 wiring.jpg (87.4 KB, 10 views)
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post #2 of 5 (permalink) Old 03-23-2018, 02:16 PM
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Re: 1989 Jem Wiring Assistance Please

Welcome to the site. My suspicion is the switch got damaged wiring it a few times as your findings don't add up. I've had trouble with these cheap switches in the past and my DY got a new (fender type) switch as a result when I wired in a coil-split. Ibanez moved away from them for a reason LOL.

I'm sure you referenced this thread
http://www.jemsite.com/forums/f35/vl...ng-133538.html

Good article here explaining the outs in common sense lingo...
5-way Switches Explained ? ALLOUTPUT.com
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post #3 of 5 (permalink) Old 03-23-2018, 08:10 PM
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Re: 1989 Jem Wiring Assistance Please

testing...
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post #4 of 5 (permalink) Old 03-24-2018, 07:34 AM
 
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Re: 1989 Jem Wiring Assistance Please

When 5 and 8 have continuity 3 and 4 should have too at the same switch position. When 5, 7 and 8 have continuity 2, 3 and 4 should have. And so on. Keep testing and you will understand how the switch works. Of course it can also be broken, but I doubt.
The colors of the stock wiring can be different to your diagram. Where do the colors from the stock neck humbucker go?
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post #5 of 5 (permalink) Old 03-24-2018, 08:06 PM Thread Starter
 
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Re: 1989 Jem Wiring Assistance Please

Thank you Jemerator!! your advice was exactly the starting point I needed Your a lifesaver!!


I realize this is more than likely wrong but since reading Jemerator's response

I have been experimenting and testing just about every possible wire combination I could think of and here is what I came up with


Keep in mind this is most likely wrong!!! but the guitar sounds exactly the way I wanted it to

1989 Floral Jem
Neck and Single coil are original
Bridge is the newer Dimarzio Pink Paf Pro D-151

Following the numbering I created and attached earlier, going
left to right 1 2 3 4 5 6 7 8

Far left pin is the bridge position or pin 1


Humbucker 4 wire consists of bare/green/red/black


My understanding is bare/green are ground

White/Black are positive and twisted together creating a series circuit

Red is negative


Single coil is red and black:

Red is negative

Black is postive

Wiring to VLX-53 switch:

Pin 1 White/Black (soldered together) of the bridge humbucker

Pin 2 Black (postive) lead coming from the single coil)

Pin 3 Red wire of the bridge humbucker

Pin 4/5 Are soldered/bridged together goes to center pole
of the volume pot

Pin 6 Red wire from the Bridge humbucker

Pin 7 Not connected

Pin 8 White/Black wire of neck humbucker


Single coil's red wire and both humbuckers green and bare wires are all soldered to together and then one wire is soldered to the body of the volume pot.

The wiring from the volume pot to the tone and output jack I followed
the diagram I attached previously


Hope this may help someone else, at least give a starting point

Thanks again Jemerator!!!
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