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Ibanez IJMB15 Instruction Manual

Electric basses.
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Our congratulations and deepest thanks on making
Ibanez your choice of instrument. Ibanez standards
are second to none. All Ibanez instruments are set up
to our strict quality control standards before shipping.
The purpose of this manual is to explain how to
maintain your instrument's finish and to keep your
guitar playing as well as it did when it left our factory.
Regular cleaning of your bass is
one of the most important ways
you can maintain the finish and
lengthen string life. After playing,
wipe down your instrument to
remove any perspiration from the
instrument. Perspiration can
actually contain acids that can be
corrosive to the strings and metal parts of the bass. Gloss finish basses should be
polished with polish formulated specifically for musical instruments, and a soft
treated guitar cloth or a cotton rag. Abrasive rags such as polyester can scratch
the finish. Oil finished basses should be wiped clean immediately after playing
with a dry cotton rag only. If your bass has become discolored due to extended
use or heavy perspiration, factory appearance, see a qualified bass repair person
about methods to restore the oil finish to its original factory appearance.
If strings become dirty, discolored, or
produce a dull sound or buzz, replace
the strings with new ones. For best
results we recommend replacing one
string at a time, this will help to avoid
removing the string tension from the
neck. When replacing strings with
different gauge strings, it may be
necessary to adjust the truss rod
tension. (We recommend only
qualified technicians perform this.)
Ibanez basses are factory equipped
with the following string gauges. Please follow the
instructions below for your particular model. The strings
should be tightly wound on to the tuning machines from
top to bottom with 2 to 3 string wraps around the post. In
case of tuning machines, where the string ends are
inserted into the posts, the string can be cut to length in
advance using a pair of string cutters. If the tuning
machines are sealed gear units, they are self-lubricating
types. The set screws for the tuning knob are adjustment
screws that can be tightened with a small Phillips head
screwdriver to increase the tension.
*The use of coarse strings may lead to buzzing and sound distortion. Using strings
that have twists or kinds may cause buzzing or decreased sustain. Make sure
that the strings are smooth and free from any defects before installing.
Solid and Semi Acoustic Guitars
Full Acoustic Guitars
.013-.054" Flat Wound
4 String Basses
5 String Basses
.045-.105 + .130"
IIbanez steel string models are equipped with adjustable truss rods. The purpose
of a truss rod is to adjust the neck to counteract string tension. There are many
reasons for truss rod adjustments. One of the most frequent reasons is changing
string gauges or tuning pitch which can affect string tension. String tension
changes may affect the string height and cause fret buzz or incorrect notes. To
adjust the truss rod, locate the truss rod nut and adjust it by inserting the correct
wrench into the nut and tightening (clockwise) or loosening (counter clockwise)
the rod. Truss rod tension can be measured by installing a capo at the first fret,
holding the string down at the
fret position where the neck
joins the body. Insert a thickness
gauge between the string and
the fret at the 8th fret. There
should be between 0.3 mm to
0.5 mm clearance. That
clearance is referred to as "neck
relief" Too much neck relief can
cause the neck to have higher
action in the middle of the neck
causing poor intonation and
uncomfortable playability. No
neck relief can cause fret buzz.
*Appropriate care must be taken when
adjusting the neck and we recommend only
qualified technicians perform this procedure.
IIbanez bass string action is set at
Solid Guitars
the factory. However, there are
Full Acoustic Guitars
many reasons that an instrument's
string height can change.
Instruments can be affected by changes in temperature
and moisture. High string action can make the guitar
difficult to play. If the string action is too low, fret buzz or
unclear notes can occur. To remedy this, follow the
instructions for the particular type of bridge installed. In
the case of string action, make sure the guitar is in tune
and the truss rod is adjusted properly. Ibanez action is set
to 2.0mm for treble side and 2.5mm for bass side at the
12th fret. The action may also need to be readjusted after
the neck is adjusted or strings are changed to a different gauge. Follow the
instructions in the relevant bridge manual to make adjustments.
*If strings other than those described above are used, gradually increase the action clearance from the treble side
through to the bass side.
Intonation adjustment is
the operation of adjusting
the location of the string at
the saddle to compensate
for different tuning. Follow
the instructions of the
particular bridge intonation
below. Intonation is
properly set when the 12th fret note and the 12th fret harmonic are exactly the
same note. This is the center point of the scale and the most accurate way of
setting a standard scale length. With the harmonic note as the standard, if the
fretted note is flat move the bridge saddle forward toward the headstock (a) to
decrease the string length. If the fretted note is sharp, move it back away from
the headstock (b) to increase the string length intonation adjustments.
*Please note that strings can be broken when the saddle is moved, so always loosen the strings before
making adjustment.
The output level of the instrument as well
as the quality of the signal can be affected
by the pickup height. Pickup height should
be adjusted until the volume of neck and
bridge pickups are almost equal with both
volumes wide open. The volume may drop
drastically if the pickup height is too low.
As the pickups are magnetic, fret buzzing
and distortion may occur if the pickup is too
close to the strings. Use a small
screwdriver to make adjustments to raise
or lower the pickup.
*Instruments that have adjustable pole pieces can be adjusted to balance the output of each string.
The battery should be changed when the
volume becomes weak or the sound becomes
distorted. Use a new 9-volt alkaline (not
lithium or carbon) battery. The battery is
stored inside battery cavity or control cavity.
Inserting a plug into the jack activates the
power supply. Be sure to disconnect the cord
when the bass is not in use; this will prevent
the battery from draining.
This is to certify that the aforementioned equipments fully
conform to protection requirements of the following EC
© 2004


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   Summary of Contents for Ibanez IJMB15

  • Page 1

    Ibanez action is set Ibanez basses are factory equipped to 2.0mm for treble side and 2.5mm for bass side at the with the following string gauges.

  • Page 2

    Bass Controls Each of the Ibanez pre-amps are specifically voiced to bring out the distinctive tone of each model. BTB with VARI-MID IIIB 18V K5 with VARI-MID III...

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