The 24 patches can be easily selected by
pressing the patch pedals. The right patch
pedal switches to the next patch and the
left patch pedal switches to the previous
patch.
In the initial condition, the 503 is set up
so that the patch pedals select patches
continuously, but you can also set up the
unit so that patches are switched only
within a certain bank of four patches. [For
details, see section 9 Patch Switching
(Application: Bank Hold ON).]
Banks are selected with the VALUE +/-
keys. Press the VALUE+ key to select the
next bank, and the VALUE- key to select
the previous bank.
For example, to switch from Patch 2,
Bank A to Patch 3, Bank C, the patch
pedal would have to be pressed nine
times. Instead, you can press the
VALUE+ key twice to switch to Bank C,
and then press the patch pedal (UP) just
once to select Patch 3.
In the Bypass mode, the effects of the
503 are temporarily turned off, so
that the original sound of the
instrument only is heard. In this
mode, the auto-chromatic tuning
function is also active. It is also
possible to activate muting, to prevent
the tuning sound from being sent to
the output.
Bypass and mute condition
Pressing both patch pedals simultaneously activates the Bypass or Mute mode.
• For bypass mode: Press and immediately release the patch pedals.
• For mute mode: Press patch pedals for at least 1 second.
To cancel the bypass or mute condition, simply press one of the patch pedals. The unit then
reverts to the previously selected patch.
Tuner mode
The 503 is initially set so that the auto-chromatic tuning function for the guitar activates
automatically when the Bypass(Mute) mode is invoked. In Bypass(Mute) mode, pick an open
string to be tuned. The closest note will be shown on the display.
When the tuning function is active, the parameter cursor LEDs
serve as tuning meter, designed to enhance tuning precision during
fine adjustments.
Turning tuning function off
If you do not want to activate the tuning function in Bypass(Mute)
mode, press the STORE and EDIT keys simultaneously for more
than one second in Play mode. The tuning function will be turned
off, and this setting will be stored even when the power is turned off. When you turn the function
off, the display will show "tunEr oFF" (tuning function off).
To turn the tuning function on, press the same keys simultaneously again. The display will show
"tunEr on" (tuning function on).
NOTE: • Please note that the tuning function may not operate properly if other effect modules between the
guitar and the 503 are on.
• To tune a bass, use 12th-fret harmonics.
Selecting Patches
Using the Bypass (Mute)/Tuner Mode
A
1
PATCH
DOWN
PATCH
UP
Patch switching
24 patches are available
Bank switching
Banks A, b, C, d, E, F are available
A
1
A
1
BANK UP
BANK DOWN
BANK F
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK E
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK d
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK C
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK b
PATCH 1
PATCH 2
PATCH 3
PATCH 4
BANK A
PATCH 1
PATCH 2
PATCH 3
PATCH 4
Pitch is too high
Correctly tuned
Pitch is too low
7
8
Press Release immediately Tuner mode
Currently selected
patch is indicated
Currently selected
patch is indicated
Press for 1 s or more Release Mute mode
Do = C
Do# = C#
Re = D
Regular tuning
6th string
1st string
4th string
Mi = E
Fa = F
Fa# = F#
Regular tuning
Regular tuning
3rd string
Regular tuning
5th string
Regular tuning
2nd string
Re# = D#
So = G
So# = G#
La = A
La# = A#
Si = B
Input signal
standby condition
&
w
& # w
&
w
& # w
&
w
&
w
& # w
&
w
& # w
&
w
& # w
&
w
Bank/patch switching
when Bank Hold is off
(initial setting)
A
1
Bypass (Mute)/Tuner mode ON
Pressing both patch pedals simultaneously turns
the Bypass (Mute)/Tuner mode on. To turn the
mode off, simply press one of the two patch pedals.
Press both
pedals together
Calibration
Select reference pitch for auto-chromatic
guitar tuner (calibration).
* The reference pitch (A) can be adjusted in the
rangefrom 435 to 445 Hz. When the BANK key
is pressed in Bypass (Mute)/Tuner mode, this is
shown as "35" to "45" on the display for a
second. Adjust to the suitable value. At power-
on, the setting is 440 Hz (40).
