Zoom PFX-9003 User manual

Operation Manual
Contents
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Terms Used in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Inserting the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Controls and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Getting Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Quick Guide (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Quick Guide (2) Using the tuner and rhythm functions . . . . . . . . . . . 12
Playing Patches (Play Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Display in play mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Selecting a patch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Changing the sound of a patch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Using the built-in mic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Using the rhythm function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Rhythm pattern list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Using the Tuner (Tuner Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Using the chromatic tuner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Using other tuning types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Changing the reference pitch of the tuner . . . . . . . . . . . . . . . . . . . . . . . . 22
Using the Sampler Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Changing the Sound of a Patch (Edit Mode) . . . . . . . . . . . . . . . . . . . . 28
Patch configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Basic edit mode steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Changing a patch name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Storing and Swapping Patches (Store Mode) . . . . . . . . . . . . . . . . . . . 33
Using the ARRM Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Other Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Returning the unit to the factory default settings . . . . . . . . . . . . . . . . . . . 40
Turning the backlight off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Effect Types and Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
COMP module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
DRIVE module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
ZNR module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
EQ module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
MOD module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
REV module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
TOTAL module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
ARRM module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Patch list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Usage Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
© ZOOM Corporation
Reproduction of this manual, in whole or in part, by an y means, is prohibited.

ZOOM PFX-9003
2
In this manual, symbols are used to highlight
warnings and cautions for you to read so that
accidents can be prevented. The meanings of
these symbols are as follows:
This symbol indicates explanations
about extremely dangerous matters. If
users ignore this symbol and handle the
device incorrectly, serious injury or death
could result.
This symbol indicates explanations
about dangerous matters. If users ignore
this symbol and handle the device
incorrectly, bodily injury and damage to
the equipment could result.
Please observe the following safety tips and
precautions to ensure hazard-free use of the
PFX-9003.
Power requirements
Since power consumption of this unit is
fairly high, we recommend the use of an
AC adapter whenever possible. When
powering the unit from batteries, use only
alkaline types.
[AC adapter operation]
•Be sure to use only anAC adapter which
supplies 9 V DC, 300 mA and is
equipped with a "center minus" plug
(ZoomAD-0006).Theuse ofan adapter
other than the specified type may
damage the unit and pose a safety
hazard.
•Connect the AC adapter only to an AC
outlet that supplies the rated voltage
required by the adapter.
•When disconnecting the AC adapter
from the AC outlet, always grasp the
adapter itself and do not pull at the
cable.
•When not using the unit for an extended
period, disconnect theAC adapter from
the AC outlet.
[Battery operation]
• Use four conventional IEC R03 (size
AAA) batteries (alkaline).
• The PFX-9003 cannot be used for
recharging.
Pay close attention to the labelling of
the battery to make sure you choose the
correct type.
•When not using the unit for an extended
period, remove the batteries from the
unit.
• If battery leakage has occurred, wipe
thebatterycompartmentand the battery
terminals carefully to remove all
remnants of battery fluid.
•While using the unit, the battery
compartment cover should be closed.
Environment
Avoid using your PFX-9003 in
environments where it will be exposed to:
• Extreme temperature
• High humidity or moisture
• Excessive dust or sand
• Excessive vibration or shock
Handling
Since the PFX-9003 is a precision
electronic device, avoid applying
excessive force to the switches and
buttons. Also take care not to drop the
unit, and do not subject it to shock or
excessive pressure.
Alterations
Never open the case of the PFX-9003 or
attempt to modify the product in any way
since this can result in damage to the unit.
Connecting cables and input and output
jacks
You should always turn off the power to
the PFX-9003 and all other equipment
before connecting or disconnecting any
cables. Also make sure to disconnect all
cables and theAC adapter before moving
the PFX-9003.
Safety Precautions

ZOOM PFX-9003
3
Introduction
Thank you for selecting the ZOOM PFX-9003 Palmtop Effects Processor
(simply called the "PFX-9003" in this manual).
This product is a sophisticated device with the following features:
• Multiple effects in a palm-sized unit
Although the PFX-9003 is extremely compact and weighs a mere 130 grams
(without batteries), it offers a host of sophisticated functions. It is a multi-
effect processor, with 60 types of effects available of which up to 10 can be
used simultaneously. It also features a tuner, rhythm machine, sampler and
even has a built-in condenser microphone.
•VAMS lets you enjoy the sound of vintage amps
The Variable Architecture Modeling System (VAMS) developed by ZOOM
provides incredibly accurate vintage amp, cabinet and effect pedal
simulations. It also provides mic preamps and a realistic acoustic guitar
simulation.
• 30-second sampling feature
A guitar phrase or the signal from an input source such as a CD player can be
sampled for up to 30 seconds and stored in the internal memory. The recorded
sample can also be played back at a slower speed without altering the pitch.
• Integrated rhythm source
60 built-in rhythm patterns using natural-sounding PCM sources are available.
This is great for practice or a quick jam session.
• Newly developed ARRM feature produces unique effects
ARRM (Auto-Repeat Real-time Modulation) allows you to adjust modulation
effect waveforms (Wah, for example) in real-time and link these waveforms to
the tempo of your rhythm tracks.
• Center canceling capability
Create a simple karaoke system with the flick of a switch. A stereo signal
supplied via the AUX IN jack can be processed so that the signal positioned in
the center (like a vocal or lead guitar track) is attenuated.
• Versatile tuner
The built-in tuner can be used not only for standard chromatic tuning but also
for 7-string guitar and other unconventional tuning applications.

ZOOM PFX-9003
4
Terms Used in This Manual
This section explains some important terms that are used in this manual.
■Effect module
An "effect module" works like a stand-alone compact effect device for
tailoring certain aspects of the sound. As shown in the illustration below, the
PFX-9003 can be thought of as a series of such effect modules.
■Effect types and parameters
Different types of sound within a module are called effect types. In most
modules, you can select one effect type from several choices. The various
settings of the effect module are called parameters.
■Patches and banks
Effect module combinations and effect
parameter settings are stored and
recalled in units called "patches".
These are divided into user banks (A –
F) which can be changed, and preset
banks (0 – 5) which are read-only.
Because each bank has 10 patches
(numbered from 0 – 9), there are 120
patches in all.
■Modes
Operation of the PFX-9003 is divided into various modes, which are used for
different purposes. There is a play mode for selecting and playing patches, an
edit mode for changing parameters, a tuner mode for using the built-in tuner,
a sampler mode for recording, etc.
INPUT OUTPUT
DRIVECOMP EQZNR REVMOD
PRESET BANK
BANK F
BANK E
BANK d
BANK C
BANK b
USER BANK
BANK A
BANK 5
BANK 4
BANK 3
BANK 2
BANK 1
BANK 0
PATCH 0
PATCH 1
PATCH 8
PATCH 9
PATCH 0
PATCH 1
PATCH 8
PATCH 9

Inserting the Batteries
ZOOM PFX-9003
5
■ARRM (Auto-Repeat Real-time Modulation)
The newly developed ARRM
feature lets you vary effect
parameters in real time, using
internally generated control
waveforms whose level changes
periodically. For example, if you
control the wah effect with
ARRM, the wah frequency will go
up and down. The ARRM
modulation speed is synchronized to the rhythm pattern tempo.
Inserting the Batteries
To use the PFX-9003 on battery power, insert batteries as shown below.
1. Turn the unit over and open the battery compartment cover.
2. Insert four IEC R03 (size
AAA) batteries into the
battery compartment. The
use of alkaline batteries is
recommended.
The correct (+) (-) orientation of
the batteries is shown inside the
battery compartment.
3. Close the battery
compartment cover, making sure that the cover audibly snaps
into place.
N OTE
• When not using the unit for an extended period, remove the batteries to prevent
the possibility of damage by leaking battery fluid.
•When the indication " " appears on the display, the batteries are almost
exhausted. Replace the batteries as soon as possible with fresh ones.
Time
Wah frequency
Wa..
..ah
Wa.. Wa..
..ah
Four IEC R03 (size AAA)
batteries
RFX-9003 Rear Battery compartment
Battery
compartment
cover

ZOOM PFX-9003
6
Controls and Functions
Top panel
Sliders 1 - 3
Built-in mic
[MIC] key
[RHYTHM] key
[SAMPLER] key
[STORE/
EXECUTE] key
CURSOR [Q]/[W]/
[E]/[R] keys
[TUNER/
BYPASS] key
Display
[EDIT/CANCEL] key
PATCH [Q]/[W] keys

Controls and Functions
ZOOM PFX-9003
7
Front panel
Right side panel
Left side panel
[OUTPUT] jack [INPUT] jack
[PHONES] jack [AUX IN] jack
[DC 9V] jack [POWER] switch
[AUX CENTER CANCEL] switch
[VOLUME] control

ZOOM PFX-9003
8
Getting Connected
Connect separately available
AC adapter (AD-0006).
Connect the [OUTPUT] jack to an audio
system or other playback system.
By connecting the output of a CD/MD player or similar to the [AUX
IN] jack, the signal from the player can be mixed to the sound of your
instrument. The combined signal is supplied at the [OUTPUT] jack, but
the signal from the [AUX IN] jack is not subject to effect processing.
This signal can be used as sampling source.
Front panel
Left side panel
[OUTPUT] jack
[DC 9V] jack
CD player
Playback system

Getting Connected
ZOOM PFX-9003
9
Connect the output of
the guitar or bass guitar
to the [INPUT] jack.
By setting the [AUX CENTER CANCEL] switch to
ON, the stereo signal from the AUX IN jack is
processed so that the sound positioned in the center
(such as a vocal, lead guitar, bass, or kick drum track
or similar) is attenuated.
Right side panel
[INPUT] jack
[PHONES] jack
[AUX IN] jack
Guitar
Bass guitar
Headphones

ZOOM PFX-9003
10
Quick Guide (1)
This section explains some of the basic operation steps of the PFX-9003.
Adjust the volume
Select a patch
Banks and patches are switched in the order A0 – A9, b0 – 9 etc.
* You can also use the CURSOR [Q]/[W] keys to directly switch banks
only.
While playing your instrument,
adjust the [VOLUME] control
to obtain a suitable level.
Use the PATCH [Q]/[W] keys to change patches until the
sound is as desired.
Turn power on
Set the [POWER] switch on the left
side panel to ON, and then turn
power to the playback system on.
When you turn on the PFX-9003, it is in play mode.
In this mode, you can select patches for playing.
* To turn power off, reverse the above sequence.
Patch name Patch numberBank
Display in play mode
9003DR
A0

Quick Guide (1)
ZOOM PFX-9003
11
Adjust the sound
of the patch
In play mode, you can use the
sliders 1 - 3 to adjust the sound of
the patch.
Store the patch
If you have made adjustments to the
sound of a patch, you can store it to
retain the setting. Press the
[STORE/EXECUTE] key.
The unit goes into the store standby mode.
To carry out the store process, select a user patch as necessary, and
then press the [STORE/EXECUTE] key once more.
To cancel the operation, press the [EDIT/CANCEL] key.
* Preset banks (0 – 5) are read-only and cannot be selected as store
target.
* Adjustments you have made are lost
when you switch to another patch. Be
sure to store the patch if you want to
keep the changes.
Adjusts the distortion intensity
of the DRIVE module.
Adjusts a major parameter
of the MOD module.
Store target bank/patch number
Adjusts a major
parameter of the
REV module.
STORE?
A0

ZOOM PFX-9003
12
Quick Guide (2) Using the tuner and rhythm functions
This section explains how to use the tuner function and rhythm function of the
PFX-9003.
Using the tuner
To use the tuner function, press the
[TUNER/BYPASS] key in play mode.
When you press the [TUNER/BYPASS] key briefly,
the PFX-9003 goes into the bypass condition
(patches are temporarily turned off), and the
chromatic tuner function can be used.
When you play an open string in this condition, the
name of the nearest note will appear on the display.
The dots in the lower section of the display let
you check the pitch. Tune the string to achieve
the desired note.
To return to play mode, press
the [EDIT/CANCEL] key.
* For information on advanced
tuner functions, see page 20.
Name of
nearest note
Pitch is flat
Correct pitch
Pitch is sharp
A
CR

Quick Guide (2) Using the tuner and rhythm functions
ZOOM PFX-9003
13
Using the rhythm
function
To play a rhythm pattern, press
the [RHYTHM] key.
Rhythm playback starts. In play mode, the
following information appears on the display.
While playing a rhythm pattern in play
mode, the following controls can be used to
select the rhythm pattern type and to adjust
volume and tempo.
To stop rhythm pattern playback, press the
[RHYTHM] key once more.
* For a list of rhythm patterns, see page 19.
* For details on the rhythm function, see
page 17.
Pattern name
Switches rhythm patterns.
Adjusts the rhythm
tempo (BPM).
Adjusts the rhythm level.
8BEAT
3

ZOOM PFX-9003
14
Playing Patches (Play Mode)
The condition where you call up patches stored in the memory of the PFX-
9003 and use them for playing your instrument is called play mode. When you
turn the PFX-9003 on, it is initially always in this mode. The various things
you can do in play mode are described in this section.
Display in play mode
In play mode, the display shows the following information.
Selecting a patch
1. To select a patch in play mode, use the PATCH [ Q ]/[ W ] keys.
For example, pressing the PATCH [Q] key repeatedly will switch banks and
patch numbers in the following order.
9003DR
A0
This indication shows which type
of bank is currently selected
(USER or PRESET).
Effect modules that are ON in the currently selected patch are
indicated by a dot ( ) symbol.
Patch name Patch number (0 – 9)
Bank (A – F, 0 – 5)
A0 A1 A9 B0 F9
00 01 09 10 59
User banks
Preset banks
PATCH [Q] key

Playing Patches (Play Mode)
ZOOM PFX-9003
15
H INT
If you hold down one of the PATCH [Q]/[W] keys and then also press the
opposite key, the patches will be switched faster.
2. To directly switch banks, use the CURSOR [ Q ]/[ W ] keys.
The CURSOR [Q] key switches to the next higher bank and the CURSOR
[W] key to the next lower bank.
N OTE
While a rhythm pattern is playing, banks cannot be switched directly.
Changing the sound of a patch
After selecting a patch in play mode, you can use the sliders and the CURSOR
[E]/[R] keys to adjust the sound and level of the patch.
1. To adjust the sound of the patch in play mode, operate sliders
1 – 3 while playing your instrument.
The parameters assigned to the sliders are as follows.
N OTE
• Depending on the effect type selected for the DRIVE module, a parameter other
than GAIN may be assigned to slider 1.
• Which parameters are adjusted by sliders 2 and 3 depends on the effect type
currently selected for the respective module.
Mainly adjusts
distortion intensity
(GAIN) of the DRIVE
module.
Slider 1
Adjusts a major
parameter of the REV
module.
Slider 3
Adjusts a major parameter of the MOD module.
Slider 2

Playing Patches (Play Mode)
ZOOM PFX-9003
16
When you operate one of the sliders, the name of the parameter and the current
setting are shown briefly on the display. The approximate setting for sliders
1 – 3 can also be seen from the bar graphs in the lower part of the display.
The "ED" indication shows that a parameter has been edited. When the
parameter is returned to its original value, the indication disappears.
2. To adjust the patch level, use the CURSOR [ E ]/[ R ] keys.
The patch level is a parameter that controls the individual level of that patch.
When you press one of the CURSOR [E]/[R] keys, the parameter name and
value are shown briefly on the display.
3. If you wish to retain the edited patch settings, perform store as
described on page 33.
If you do not store the patch and switch to another patch or turn power to the
unit off, the edited settings will be lost. Take care not to accidentally lose
settings that you want to keep.
N OTE
While a rhythm pattern is playing, the patch level cannot be adjusted directly.
GAIN
25
Parameter name Parameter value
Approximate setting
of sliders 1 – 3
PATLVL
20
CURSOR
[E]/[R] keys

Playing Patches (Play Mode)
ZOOM PFX-9003
17
Using the built-in mic
The PFX-9003 has a built-in high-sensitivity microphone. You can use the mic to
pick up the sound of an acoustic guitar or vocal, and use effect processing on that
sound in the same way you would use the [INPUT] jack.
When one of the following three conditions is met, the built-in mic can be
used and the mic symbol appears on the display.
(1) DRIVE module is ON, and the MIC PRE or CABI effect type is selected
(2) DRIVE module is OFF
(3) Tuner mode is active
1. To use the built-in mic, verify that the Mic symbol is shown on
the display, and press the [MIC] key.
The [MIC] key flashes and the signal from the [INPUT] jack is cut off. If the
Mic symbol is not being shown, pressing the [MIC] key has no effect.
2. If the gain of the built-in mic is low, press the [MIC] key once more.
The [MIC] key is now constantly lit. There are two gain settings (Hi/Lo) for
the built-in mic. The first push of the [MIC] key activates the Lo setting (key
flashing), and the second push changes to the Hi setting (key lit).
3. To turn the built-in mic off, press the [MIC] key once more when
the Hi gain setting is active.
The [MIC] key goes out, and the built-in mic is turned off.
Using the rhythm function
In play mode, you can select from 60 rhythm patterns. This is useful for solo
practice or for simple jam sessions.
1. Press the [RHYTHM] key while the PFX-9003 is in play mode.
Mic symbol

Playing Patches (Play Mode)
ZOOM PFX-9003
18
Rhythm pattern playback starts. The display briefly shows the name of the
currently selected patch. The [RHYTHM] key LED flashes in sync with the
tempo of the pattern.
2. To change rhythm related parameters, use the CURSOR [ Q ]/
[ W ]/[ E ]/[ R ] keys and the sliders 1 – 3.
While a rhythm pattern is playing, the following controls are assigned to
rhythm parameters.
H INT
• The approximate setting of the rhythm pattern parameters can be seen from the
sliders 1 – 3 bar graphs in the lower part of the display.
•You can select another patch also while a rhythm pattern is playing. However,
adjusting parameters and directly selecting the bank is not possible.
3. To stop rhythm pattern playback, press the [RHYTHM] key once
more.
8BEAT
3
[RHYTHM] key
Pattern name
Adjusts the rhythm
pattern level.
Changes the rhythm pattern
tempo in 5 BPM steps.
Change the rhythm
pattern tempo in 1
BPM steps.
Select a rhythm pattern.

Playing Patches (Play Mode)
ZOOM PFX-9003
19
Rhythm pattern list
Rhythm pattern Display
8 BEAT 1
8BEAT
1
8 BEAT 2
2
8 BEAT 3
3
8 BEAT 4
4
8 BEAT 5
5
8 BEAT SHUFFLE 1
8SHUFL 1
8 BEAT SHUFFLE 2
2
16 BEAT 1
16BEAT
1
16 BEAT 2
2
16 BEAT 3
3
16 BEAT 4
4
16 BEAT SHUFFLE
16SHFL
3/4
3/4
6/8 ROCK
6/8
5/4
5/4 1
5/4 ROCK
2
ROCK'n ROLL 1
1
ROCK'n ROLL 2
2
ROCK 1
ROCK 1
ROCK 2
2
1970s ROCK
70ROCK
HARD ROCK 1
HARD
1
HARD ROCK 2
2
HARD ROCK 3
3
METAL 1
METAL 1
METAL 2
2
THRASH
THRASH
PUNK
PUNK
POP 1
POP 1
POP 2
2
Rhythm pattern Display
DANCE 1
DANCE
1
DANCE 2
2
DANCE 3
3
FUNK 1
FUNK 1
FUNK 2
2
BALLAD 1
BALLAD 1
BALLAD 2
2
BLUES 1
BLUES 1
BLUES 2
2
COUNTRY
CONTRY
BOSSA NOVA
BOSSA
JAZZ 1
JAZZ 1
JAZZ 2
2
REGGAE
REGGAE
SKA
SKA
LATIN 1
LATIN 1
LATIN 2
2
SAMBA 1
SAMBA 1
SAMBA 2
2
AFRO
AFRO
MOTOWN
MOTOWN
EUROBEAT
EURO
FUSION
FUSION
OLDIES
OLDIES
METRO (triple time)
METRO
3
METRO (quadruple time)
4
METRO (quintuple time)
5
METRO (sextuple time)
6
METRO (septuple time)
7
METRO
METRO

ZOOM PFX-9003
20
Using the Tuner (Tuner Mode)
The PFX-9003 incorporates a versatile tuner that can also accommodate 7-
string guitar and other unconventional tunings. The tuner function becomes
available when the unit is set to the bypass condition (effects temporarily
turned off) or mute condition (effects and direct sound turned off).
Using the chromatic tuner
1. To set the PFX-9003 to the tuner mode, press the [TUNER/
BYPASS] key in play mode.
When you press the [TUNER/BYPASS] key briefly and then release the key,
the PFX-9003 goes into the bypass condition (effects are turned off). The
indication "CHRMTC" is shown briefly on the display, and the chromatic
tuner can be used.
When you hold down the [TUNER/BYPASS] key for one second or more, the
PFX-9003 goes into the mute condition (direct sound and effects are turned
off). The indication "CHRMTC" is shown briefly on the display, and then an
"M" (for Mute) is shown. The chromatic tuner can now be used.
2. Play the open string you want to tune.
The pitch is automatically detected, and the display shows the note which is
[TUNER/BYPASS] key [Bypass] Tuning type (chromatic)
Press briefly and
release
CR
[Mute] Indicates Mute condition
Press and hold
for at least 1 second
CR