Electro-Harmonix Pitch Fork User manual

- WARRANTY INFORMATION -
Please register online at http://www.ehx.com/product-registration or complete and return the enclosed
warranty card within 10 days of purchase. Electro-Harmonix will repair or replace, at its discretion, a
product that fails to operate due to defects in materials or wor manship for a period of one year from
date of purchase. This applies only to original purchasers who have bought their product from an
authorized Electro-Harmonix retailer. Repaired or replaced units will then be warranted for the
unexpired portion of the original warranty term.
If you should need to return your unit for service within the warranty period, please contact the
appropriate office listed below. Customers outside the regions listed below, please contact EHX
Customer Service for information on warranty repairs at [e-mail] or [phone]. USA and
Canadian customers: please obtain a Return Authorization Number (RA#) from EHX Customer
Service before returning your product. Include with your returned unit: a written description of the
problem as well as your name, address, telephone number, e-mail address, and RA#; and a copy of
your receipt clearly showing the purchase date.
United States & Canada
EHX CUSTOMER SERVICE
ELECTRO-HARMONIX
c/o NEW SENSOR CORP.
55-01 2ND STREET
LONG ISLAND CITY, NY 11101
Tel: [phone]
Email: [email protected]
Euro e
JOHN WILLIAMS
ELECTRO-HARMONIX UK
13 CWMDONKIN TERRACE
SWANSEA SA2 0RQ
UNITED KINGDOM
Tel: [phone]
Email: electroharmonixu @virginmedia.com
This warranty gives a purchaser specific legal rights. A purchaser may have even greater rights
depending upon the laws of the jurisdiction within which the product was purchased.
To hear demos on all EHX pedals visit us on the web at www.ehx.com
Email us at [email protected]om
FCC COMPLIANCE
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Modifications not expressly approved by the manufacturer could void the user's authority to operate
the equipment under FCC rules.
Pitch Fork
POLYPHONIC PITCH-SHIFTER/HARMONY PEDAL
Congratulations on your purchase of the Electro-Harmonix Pitch Fork, a compact,
battery powered, polyphonic pitch-shifter/harmony pedal. The Pitch Fork transposes
the pitch of your instrument over a range of up to +/- 3 octaves. Three different
available pitch-shifting modes allow the pitch to be transposed up, down or both
simultaneously in Dual mode. The pitch shift amount can be set to a fixed interval or
continuously varied by an expression pedal or control voltage. The Pitch For ’s
footswitch features two different modes of operation: Latch and Momentary.
Momentary allows rapid toggling between effect and bypass for quic blasts of pitch
bending. The BLEND nob is a wet/dry control allowing you to create the perfect mix
of your dry and transposed signals.
WARNING: Your PITCH FORK comes equipped with an Electro-Harmonix 9.6DC-200BI power
supply (same as used by Boss
®
& Ibanez
®
: 9.6 Volts DC 200mA). The PITCH FORK requires
30mA at 9VDC with a center negative plug or runs off a 9Volt battery. Using the wrong adaptor
or a plug with the wrong polarity may damage your PITCH FORK and void the warranty.
GETTING STARTED
Connect the output plug of the supplied power adaptor to the 9V power jac . Plug
your instrument into the INPUT jac ; connect your amp to the OUTPUT jac . Set the
toggle switch to UP arrow and press the LATCH button so it is down. Turn BLEND
fully cloc wise and set SHIFT to 1, as in 1 octave up. Press the footswitch until the
LED lights up. You will hear all your notes shifted up 1 octave. Connect an optional
expression pedal to continuously vary the pitch from unity up to 1 octave.
Press the LATCH button so it is up. The footswitch now has a momentary action:
when pressed the effect activates and pitch is shifted; when released, the effect is
bypassed. Connect an expression pedal to control glissando rate of the momentary
footswitch. If the EXP jac is vacant, pitch will change at the default glissando rate of
60ms (this is user adjustable).
BLEND KNOB
The BLEND nob mixes between the untreated, analog dry signal and the effected
signal. At BLEND’s full cloc wise position, the output is 100% wet.
SHIFT KNOB
The SHIFT nob selects the maximum interval of chromatic transposition. The chart
below shows how the pitch will be shifted relative to the original pitch.
D m2 M2 M3 P4 P5 M6 m7 1 2 3
Detune Minor
2nd
Major
2nd
Major
3rd
Perfect
4th
Perfect
5th
Major
6th
Minor
7th
1
Oct
2
Oct
3
Oct

MODE TOGGLE SWITCH
The MODE toggle switch selects whether the pitch is shifted up, down or both
simultaneously relative to the root. Dual mode outputs two pitch-shifted signals. One
of the shifted signals follows the SHIFT nob as if in UP mode. The other shifted
signal creates a musically useful harmony according to the SHIFT nob setting.
DUAL mode SHIFT nob Settings:
D m2 M2 M3 P4 P5 M6 m7 1 2 3
Detune Deep
Detune
M2
up
+
M6
up
M3
up
+
P5
up
P4
up
+
P5
down
P5
up
+
1 Oct
down
M6
up
+
P5
down
m7
up
+
M6
up
1 Oct
up
+
1 Oct
down
2 Oct
up
+
1 Oct
down
3 Oct
up
+
1 Oct
down
LATCH BUTTON
The LATCH button selects Latch or Momentary mode. This affects how the footswitch
and EXP jac input behave. When the LATCH button is down, Latch mode is enabled.
The footswitch toggles between effect and bypass each time you press and release
the footswitch; the EXP input continuously varies pitch. When the LATCH button is in
the up position, Momentary mode is selected. The effect is only on while the
footswitch is held down, otherwise the Pitch For is bypassed; the EXP input varies
the glissando rate of the momentary footswitch.
BYPASS FOOTSWITCH & STATUS LED
The footswitch toggles between effect on and buffered bypass. In Latch mode, each
press and release of the footswitch toggles between effect and bypass modes. In
Momentary mode, when the footswitch is held down, the effect is on, when the
footswitch is released, the Pitch For enters bypass. The status LED lights when in
Effect mode.
EXP JACK
EXPression input jac accepts a TRS expression pedal connector or a Tip-Sleeve 0-5V
control voltage input. The expression pedal should ideally use a 10 potentiometer
with linear rather than audio taper. It must have the wiper connected to TIP and toe-
down connected to RING. Pedals made by some manufacturers do not conform to
this convention, and would need a special cable to swap RING and TIP. Some
suggested Expression Pedals: EHX Expression Pedal, M-Audio
®
EX-P, Moog
®
EP-2 &
EP-3, Roland
®
EV-5 or Boss
®
FV-500L.
LATCH MODE - the Expression/CV input controls pitch shift amount,
ranging from unity, or no pitch shift, in the heel position to the interval set
by the SHIFT nob for the toe position. Pitch varies continuously from heel
to toe in all settings.
MOMENTARY MODE - the Expression/CV input controls glissando rate for
the Pitch For ’s footswitch. When the bypass footswitch is pressed, the Pitch
For jumps from bypass to the pitch shift interval set by the SHIFT nob.
The amount of time it ta es to reach the SHIFT nob’s interval setting is the
glissando rate. When the footswitch is released, pitch will return to unity by
the same rate. When your expression pedal is heel-down the rate is 4ms, in
toe-down the rate is 2sec. When no device is plugged into the EXP input the
default glissando rate is 60ms.
SAVING NEW GLISSANDO RATE SETTING FOR PITCH FORK FOOTSWITCH
1) Set LATCH mode button to the Momentary or up position.
2) Connect expression pedal or CV device to EXP jac .
3) Press and release Pitch For ’s footswitch while adjusting expression pedal or CV
device until you hear desired glissando rate. Leave external device in current
setting.
4) Press and hold down the Pitch For ’s footswitch.
5) Press LATCH button so it changes to Latch mode. LED flashes to confirm.
6) Release the footswitch.
7) The new glissando rate is now saved. Remove plug inserted into EXP jac ,
change bac to Momentary mode and use footswitch to confirm new rate.
RESTORING FACTORY DEFAULT FOR GLISSANDO RATE
1) Ma e sure nothing is plugged into EXP jac .
2) Set LATCH button to Latch mode, the down position.
3) Press footswitch so that Pitch For is in Bypass.
4) Press and hold down the Pitch For ’s footswitch.
5) Press LATCH button so it changes to Momentary mode. LED flashes to confirm.
6) Release the footswitch.
OUTPUT JACK
Outputs the wet/dry mix set by the BLEND nob.
CHANGING BETWEEN LATCH AND MOMENTARY WHEN EXPRESSION PEDAL
IS CONNECTED
When in Latch mode and you switch to Momentary mode the expression pedal
position is ignored. The stored glissando rate will ta e precedence until the
expression pedal is moved from current position.
LED ON STARTUP
The LED will blin 4 times then hold on the 5
th
if in latch mode or toggle off if in
momentary. This happens when AC power is applied or you plug into the input jac
with a fresh battery installed. If battery power is too low, the LED blin s dimly, every
other second.
CHANGING THE BATTERY
To change the 9-volt battery, you must remove the 4 screws on the bottom of the
Pitch For . Once the screws are removed, you can ta e off the bottom plate and
change the battery. Please do not touch the circuit board while the bottom plate is off
or you ris damaging a component. To extend battery life, disconnect the INPUT jac
when the Pitch For is not in use.
NOTES AND SPECIFICATIONS
•PITCH FORK has high quality buffered bypass.
•Input impedance is 2.2MΩ.
•Output impedance is 680Ω
•Current draw of the PITCH FORK is 30mA.