Page 1
LONG J HOUSING
(LJ)
3.700
MAXIMUM RECOMMENDED STRING WIDTH 2.725"
3.100
.920
PO BOX 4394
SANTA ROSA, CA
95402 USA
0230-0116B
P (707) 525-9941
F (707) 575-7046
EMGPICKUPS.COM
MAXIMUM RECOMMENDED STRING WIDTH 2.725"
1.560
#4 WOOD SCREW
FOR MOUNTING
SHORT J HOUSING
(SJ)
3.590
3.100
R .250 TYP
INSTALLATION INFORMATION
EMG MODELS: J, JA, J-CS SET (4 /5-STRING)
.920
SPECIFICATIONS: MODEL:
J JA J-CS
Logo Color Silver Gold Silver
Magnet Type * C A C/S
Resonant Frequency (KHz) 3.95 3.20 3.20
Output Voltage (String) 2.00 1.00 1.00
Output Voltage (Thump) 4.50 4.50 4.50
Output Noise (60 Hz) -101 -99 -99
Output Impedance (Kohm) 10 10 10
Current @9V (Microamps) 80 80 80
Battery Life (Hours) 3000 3000 3000
Maximum Supply (Volts DC) 27 27 27
*Note: Magnet Type: A (Alnico) C (Ceramic) C/S (Ceramic and Steel)
PICKUP AND MAGNET DIMENSIONS:
The shorter housing (SJ) is for the neck pickup, while the longer housing (LJ) is for the bridge pickup. Each of the housings also have
different mounting hole distances. Both SJ and LJ Housings can work with both 4 and 5-string instruments, but you should check the width
of your strings against the magnet dimensions above to make sure there is sufficient string coverage. A rule of thumb for any pickup is that
the total magnet width should be the string width plus twice the distance the pickup is from the strings. So, If the pickup is 3/16” (5mm) from
the strings, with a magnet width of 3.10“ (78mm) the maximum string width would be 2.72” (69mm). If your string width is too wide for a J Pickup,
choose one of the EMG Extended Series Pickups, with a 4 inch (100mm) housing, where we have several styles of pickup available.
.750
1.500
#4 WOOD SCREW
FOR MOUNTING
R .250 TYP
.730
R .093 TYP
.730
R .093 TYP
IMPORTANT INSTALLATION NOTES:
1) Only one 9-Volt battery is required to power the pickups and any
accessories such as the EXB, BTC, B125 Blend, and BQ Controls.
Use an Alkaline or Lithium battery for longest life.
2) The Volume and Tone controls included with this EMG System are
25K Ohm. This value is required for the system to work correctly.
EMG Pickups are shielded internally and DO NOT require string
grounding. This greatly reduces the possibility of reverse
polarity shock from microphones and other equipment.
5) EMG Active Pickups have very little magnetism compared to
passive pickups. We recommend you adjust the pickups as
close to the strings as possible. Sustain and string movement
3) A stereo output jack (12B) is included with the EMG Pickups;
it grounds the black battery wire to turn on the pickups when
the plug is inserted into the jack. If you are replacing passive
pickups, make sure to use the jack included. If your guitar has a
long panel jack (see Diagram #4, Page 3), make sure it is a
will not be inhibited by close adjustment.
6) If your installation is different from the diagrams in these
instructions or you need additional diagrams visit our website:
emgpickups.com for a complete listing of available diagrams.
stereo type, a Switchcraft 152B is recommended.
7) SPECIAL NOTE:
4) When installing EMG Active Pickups, DO NOT connect the bridge
ground wire. This wire is usually soldered to a volume or tone
control casing and goes to the bridge. This wire grounds the
strings and uses them and your body as a shield against hum and
buzz. It also creates a shock hazard.
The diagrams shown are for EMG Active Pickups.
All diagrams show the Red Wire coming from the pickups
connected to the battery. If you are installing EMG-HZ
Passive Pickups refer to their diagrams. The Red Wire of
the HZ Pickup is NOT for battery power, it is a coil wire.
Warranty
All EMG Pickups and accessories are warranted for a period of two years. This warranty does not cover failure due to improper installation, abuse or damage. If
upon examination the pickup is determined to be defective, a replacement will be made. Warranty replacement products are covered by this same warranty. This
warranty covers only those pickups and accessories sold by authorized EMG Dealers. This warranty is not transferable.
© 2009 Copyright EMG INC. All Rights Reserved.
Page 2
****Tips and Tricks****
Start your installation by:
1) Read the General Notes on Page 2 if you haven’t already
and determine if you have the right output jack for your
instrument. A Stereo 12B type (Included) or a 152B Long Panel
Jack will be required.
2) Remove the strings
3) Remove any existing Pickups and controls
(remember the order and function of each control)
4) Install the EMG Volume and Tone Controls and tighten them in.
5) Then install the pickups keeping any excess cable under the pickup
rather than in the control cavity.
Installation Instructions:
EMG Models: J, JA, J-CS SET (4 /5-STRING)
General Notes:
Every attempt has been made to make this a solderless installation.
There are some instances where this is not possible;
1) If your instrument uses the long panel output jack and you had passive pickups
you will need a new stereo output jack, the Switchcraft 152B is recommended.
Soldering to the new jack will be required, see Diagram #4 on page 3.
2) Power Supply tips are on page 4. If your instrument has a battery holder,
you are installing this pickup with an older EMG, or you want to supply your
instrument with +18 Volts, see page 4 for tips to avoid soldering.
Installation Instructions:
2 Pickups, 2 Volume controls and Master Tone, no selection switch
J-Bass Style wiring
Refer to Diagram #2
1) Install the Pickups and route the Pickup cables to the control cavity.
If the cables are too long, keep any excess under the pickup.
2) Mount the Volume and Tone controls into the body / pickguard.
Plug the Neck Pickup Cable onto the Neck Volume Control.
Plug the Bridge Pickup Cable onto the Bridge Volume Control.
3) Plug a coax cable from the Neck Volume Control to the Bridge Volume
Control.
4) Plug a coax cable from the Bridge Volume Control the the Master Tone Control.
5) Plug the output cable onto the Master Tone control and connect the output
wires to the output jack by pushing the connectors on as shown.
WHITE wire onto the TIP (T) contact,
BLACK wire onto the SLEEVE (S) contact
BLACK Battery Negative wire onto the RING (R) contact.
6) Plug the RED Wires of the pickups onto the V+ Supply Buss (RED Shroud)
along with the RED of the battery clip.
Extra pins on the V+ Supply Buss are for EMG Accessories.
7) Put the battery in the insulating foam piece provided and place it securely in the
control cavity. We suggest that you plug in the instrument and test it before
closing the control cavity.
****Tips and Tricks****
Start your installation by:
1) Read the General Notes on Page 2 if you haven’t already
and determine if you have the right output jack for your
instrument. A Stereo 12B type (Included) or a 152B Long Panel
Jack will be required.
2) Remove the strings
3) Remove any existing Pickups and controls
(remember the order and function of each control)
4) Install the EMG Volume and Tone Controls and tighten them in.
5) Then install the pickups keeping any excess cable under the pickup
rather than in the control cavity.
Diagram #1
Insert the plug onto the 3 pin header
of the pickup as shown above.
Note the orientation arrow.
BATTERY
BUSS
Diagram #2
FROM BRIDGE PICKUP
Volume / Volume
Master Tone (Passive)
FROM NECK PICKUP
Diagram #3 (preferred wiring order)
B125 Active Balance Control
Active Tone / Master Volume
This installation can be used for instruments with 3 control positions like
the diagram above, but use a Balance Control instead of 2 Volume Controls.
The Active Tone Control shown in this diagram can be replaced with the
EMG-EXB Expander, or the EMG-BTC Control (Active Bass and Treble EQ).
RED
- 9V +
EMG Neck Pickup
(Upper 3 pin header)
B118
ACTIVE BALANCE
CONTROL
EMG Bridge Pickup
RED
(Lower 3 pin header)
- 9V +
NECK
PICKUP
BRIDGE
PICKUP
BATTERY
BUSS
NECK
VOLUME
MASTER
VOLUME
ABC
CONTROL
RED
BRIDGE
VOLUME
ACTIVE
TONE
BATTERY
NEG (-) BLACK
ACTIVE
TONE
MASTER
TONE
OUTPUT CABLE
MASTER
VOLUME
NOTE REVERSED CONNECTOR!
S
S
OUTPUT
JACK
OUTPUT
R
BOTTOM VIEW
T
OUTPUT
R
T
J SET Page 2
Page 3
Diagram #4
Soldering to the 152B Panel Jack:
If your instrument has a long Panel Jack like the one below
you will have to solder the output cable as shown.
Ground (Black) to the sleeve
Signal (White) to the Tip
Battery Negative (Black) to the Ring
- 9V +
RED to BATTERY BUSS
BATTERY
NEG (-)
RING
FROM TONE
OR VOLUME
SLEEVE
TIP
Installation Instructions:
EMG Models: J, JA, J-CS SET (4 /5-STRING)
Installation (Two Pickup Guitars with Selection switch):
Guitars with two pickups and a selection switch will use the EMG B157 Pickup Buss
shown at the right in Diagram #6a.
The Pickup Buss is a convenient way to wire your guitar without soldering.
There is a separate sheet attached to these instructions that describes the
Pickup Buss in detail.
In all installations it’s best to find a place to mount the Pickup Buss in the control
cavity before starting. Then, after the cables are routed use the velcro to mount it
securely.
1) Install the Pickups and route the Pickup cables to the control cavity.
If the cables are too long, wind up the excess and keep it under the pickup.
2) Mount the Volume and Tone controls into the body.
Plug both Pickup cables onto the Pickup Buss (BLACK Shroud) as shown,
Refer to Diagram #6a
Bridge Pickup to position 1
Neck Pickup to position 2.
3) Plug a coax cable from the Pickup Buss (position 3) to the Master Volume
control as shown in Diagram #6b.
4) Plug a coax cable from the Master Volume to the Master Tone as shown.
5) Strip the insulation from the switch wires and Insert them into the GREEN
Terminal Block and tighten the screws with a small screwdriver.
The Bridge pickup goes to the BR Terminal
The Neck pickup goes to the NK Terminal
The Output of the switch goes to the O Terminal
If there is a ground wire coming from the switch, insert it into one of the black
terminals on the terminal block.
6) Plug the output cable onto the Master Tone control and connect the output
wires to the output jack by pushing the connectors on as shown.
WHITE wire onto the TIP (T) contact,
BLACK wire onto the SLEEVE (S) contact
BLACK Battery Negative wire onto the RING (R) contact.
- 9V +
Diagram #6b
2 Pickups
1 Master Volume
1 Master Tone
Toggle Style Switch
GROUND
NECK P/U
OUTPUT
BRIDGE P/U
FROM NECK PICKUP
Diagram #5
Soldering to the battery buss:
If your instrument has an older EMG Pickup you can solder the
pickup RED wire to the buss. Simply use some needle nose pliers,
pull out the V+ header and solder the RED Wire from the pickup(s)
to any of the pins and then re-insert the header into the housing.
1
2
Diagram #6a
BRIDGE PICKUP
NECK PICKUP
7) Plug the RED Wires of the pickups onto the V+ Supply Buss (RED Shroud)
along with the RED of the battery clip.
Extra pins on the V+ Supply Buss are for EMG Accessories.
8) Put the battery in the insulating foam piece provided and place it securely in the
control cavity.
We suggest that you plug in the instrument and test it before closing the
control cavity.
BATTERY
NEG (-)
RED
RED
RED
3
BRIDGE PICKUP (POSITION 1)
NECK PICKUP (POSITION 2)
OUTPUT (POSITION 3)
TO MASTER TONE
MASTER
VOLUME
S
MASTER
TONE
OUTPUT
R
T
J SET Page 3
FROM BRIDGE PICKUP
OUTPUT CABLE
Page 4
2 Pickups / Toggle Select Switch / 2 Volumes and 2 Tones)
Refer to Diagram #7
1) Install the Pickups and route the cables to the control cavity.
If the cables are too long, wind up the excess and keep it under the pickup.
2) Mount the Volume and Tone controls into the body
Plug both Neck and Bridge pickup cables onto the Volume Controls as shown.
Plug a coax cable from the Bridge (BR) Volume control to the Pickup Buss
(Position 1).
Plug a coax cable from the Neck (NK) Volume control to the Pickup Buss
(Position 2).
3) Plug a coax cable from the Bridge (BR) Volume control to the Bridge (BR) Tone
control as shown.
4) Plug a coax cable from the Neck (NK) Volume control to the Neck (NK) Tone
control as shown.
5) Strip the insulation from the switch wires and Insert them into the GREEN
Terminal Block and tighten the screws with a small screwdriver.
The Bridge pickup goes to the BR Terminal
The Neck Pickup goes to the NK Terminal
The Output of the switch goes to the O Terminal
If there is a ground wire coming from the switch, insert it into one of the black
terminals on the terminal block.
Diagram #7
2 Pickups
2 Volume (either Volume will act as a master)
2 Tone
Toggle Style Switch
- 9V +
GROUND
NECK P/U
6) Plug the output cable onto the Pickup Buss (Position 3) and push the connectors
onto the jack as shown.
WHITE wire onto the TIP (T) contact,
BLACK wire onto the SLEEVE (S) contact
BLACK Battery Negative wire onto the RING (R) contact.
7) Plug the RED Wires of the pickups onto the V+ Supply Buss (RED Shroud)
along with the RED of the battery clip. Extra pins are for EMG Accessories.
8) Put the battery in the foam insulator provided and place it securely in the
control cavity.
We suggest that you plug in the instrument and test it before closing the
control cavity.
BATTERY
NEG (-)
OUTPUT
R
S
OUTPUT
BRIDGE P/U
FROM NECK PICKUP
FROM BRIDGE PICKUP
H INSTRUCTIONS Page 4
Diagram #8
If the instrument has a Battery Holder:
If your instrument has a 9 or 18 Volt battery holder you can still
use the EMG Connectors to supply power to the pickups.
Simply cut and strip the wires from the battery clip provided.
Twist the wires together (Red to Red and Black to Black) and
use the shrink tubing included to cover the connections.
Soldering the wires is recommended.
Cover these connections with the
shrink tubing provided.
RED to BATTERY OR PICKUP BUSS
9/18 VOLT
BATTERY
HOLDER
BLACK to RING terminal
of the Output Jack
J SET Page 4
RED
RED
OUTPUT CABLE
RED
NK VOLUME
BR VOLUME
Diagram #9
+18 Volt Wiring Option:
If you want to operate your instrument at +18 Volts for more
headroom then use 2 batteries wired as below.
Also, if you are using any type of EQ in your instrument
(EMG-BT, BQ) or anything that boosts the pickup signal then
+18 Volts is recommended.
RED TO BATTERY BUSS (+18Volts)
- 9V +
- 9V +
BLACK
RED
BLACK to RING terminal
of the Output Jack
Solder the Black and Red
wires together and cover
the connection with shrink
tubing, or other insulation.
R
S
T
T
NK TONE
BR TONE
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