Справочник Пользователя для Fishman powerjack

1. Unscrew the shielding cap to access the preamp circuit board.

2. Strip 1/4" off the outside jacket of the pickup wire. Tin both the inner conduc-

tor and the ground wire.

3. Thread the pickup wire through the shielding cap.

4. Thread the pickup wire through the largest of the three strain relief holes,

then solder the signal wire from the pickup (hot wire) to the pad marked "IN"
on the preamp circuit board. Solder the ground wire from the pickup (shield)
to the adjacent pad marked "G" on the preamp circuit board. (See Fig 1) Do
not over heat the solder pads! Doing so may lift the pads from the circuit
board.

5. Fasten the shielding cap to the jack. Be careful not to allow the shielding cap

to come in contact with the end of the circuit board.

6. Lock the shielding cap to the first large hex nut.

The Fishman Switchjack™ switching endpin jack is integrated into the
Powerjack™. A variety of stereo wiring options are available for pickup+micro-
phone or pickup+pickup:

(use with Fishman Blender System)

The Fishman VTB module offers simple and effective volume and tone
control especially for your Powerjack equipped pickup system. Smooth
taper volume plus dialed-in active bass and treble controls integrate
seamlessly on your instrument, for a clean look and an unobtrusive
profile. The VTB is available through your Fishman Dealer. For more
info, go to www.fishman.com

Follow this sequence when installing the endpin jack:

1 - Preamp / Shielding Cap
2 - 1st Large Hex nut
3 - 2nd Large Hex Nut
4 - Large Dress Washer
5 - Star Washer
6 - Guitar End Block
7 - Small Dress Washer
8 - Small Dress Nut
9 - Strap Button

The jack should protrude at least 5/16" (7.9 mm) and no more than 11/32"
(8.7mm) outside the guitar's body for proper fit.

Fit the small dress washer and nut over the end of the jack, then insert a
3/32" Allen wrench through the small hole on the end of the jack. Tighten
the nut with a 1/2" open-end wrench while holding the jack in place with a
3/32” (2 mm) Allen wrench. Thread and hand tighten the strap button.

Note: With the strap button in place, the end of
the jack should protrude slightly, so that when a
plug is inserted, it will snap securely in place.

We recommend that you attach the battery clip to a small piece of hardwood
approximately 1 1/2" x 1 1/2" x 1/2" (4cm x 4cm x 1.1cm) thick. Mark the screw
hole locations on the block using the battery holder as a template. Drill the screw
holes using the 5/64" (2mm)  drill. Attach the battery holder using the two supplied
1/4" screws. Attach this assembly to the inside front block (neck block) using
either wood glue or a gap filling cyanoacrylate such as Loctite Black Max™.

Important!  Although the supplied battery holder should provide adequate
capacity to grip the battery at all times, we strongly recommend that you
remove the battery when shipping your instrument. FAILURE TO REMOVE
BATTERY COULD RESULT IN DAMAGE TO YOUR INSTRUMENT. Fishman
will not be held responsible for any damage incurred to instruments from a
loose battery.

A set of adhesive backed clips has been provided to secure the pickup cable
and battery leads inside the guitar once the endpin jack has been installed.
Remove the plastic film from the back of each clip to expose the adhesive.
Secure the cable/clips to the kerfed lining of the guitar.

Power Supply:

9 Volt Alkaline battery

Battery Life:

12,000 hours 

Maximum Output Voltage:

4V peak to peak 

Input Overload              

-.7dBV

Input Impedance           

10 Mega Ohms

Output Impedance:

Less than 5kOhm

System Gain                  

3dB

Signal-to-Noise Ratio:

94 dB

Discrete Component Design: FET low noise class A 

input stage, bipolar class 
AB output stage

Weak string 

or strings

F

I S H M A N

P

O W E R J A C K

™   M

I N I A T U R E

E

N D P I N

P

R E A M P

Symptom

Cause

Solution

Saddle is not completely seated.

Push the saddle down over the weak strings.

Bottom of saddle is uneven or out of square with its sides.

Check bottom of saddle for flatness and squareness.

Debris in the saddle slot.

Improper saddle fit (too tight or loose).

Saddle material.

Not enough downbearing pressure on saddle.

Uneven or belly up saddle slot.

Wire hole too tight.

Pickup binding in saddle slot.

Remove debris from the saddle slot.

Make sure that the saddle has a sliding fit in the slot.

Do not use bone, ivory or other organic materials 

for the saddle material.

Follow the 50/50 rule.

Sculpt the bottom of the saddle to compensate for depth 

differences in the saddle slot or re-rout the saddle slot.

The wire hole must be .094" diameter.

The saddle slot must be .125" wide for the AG-125 and .094”

for the AG-094. Rout the slot to the correct width.

Thin or weak signal

Weak downbearing pressure due to low string break angle.

Observe the 50/50 rule. Ramp the string slots if necessary.

Hum

Improper saddle fit (too tight, resulting in poor s/n ratio).

Check saddle for sliding fit in the slot.

Torn pickup shield.

Examine the pickup. Replace pickup if the material is torn.

Unshielded jack.

Fasten the Shielding Cap to the jack.

Pickup

intermittent

or dead

Pickup binding in wire hole 

(wire hole too small or misaligned.)

Align or widen pickup wire hole.

Pickup binding in saddle slot.

Widen or lengthen pickup saddle slot 

to accommodate the pickup.

REV. 2.3

PJ FISHMAN

+

G

IN

R

-

Pickup Signal

to "IN"

Pickup Shield

to Ground ("G")

REV. 2.3

PJ FISHMAN

+

G

IN

R

-

Pickup Signal

to "IN"

2nd Pickup Signal

to Ring ("R")

Pickup Shield

to Ground ("G")

2nd Pickup Shield

to Ground ("G")

REV. 2.3

PJ FISHMAN

+

G

IN

R

-

Pickup Signal

to "IN"

Microphone Signal

to Ring ("R")

Pickup Shield

to Ground ("G")

Microphone Shield

to Ground ("G")

Zener
Diode

3 4 5

6

7

8

9

2

1

®

340-D Fordham Road Wilmington MA 01887 USA

Phone 978-988-9199 • Fax 978-988-0770

www.fishman.com