1
WARNING: Your CLOCKWORKS comes equipped with an Electro-Harmonix
18VDC-500mA power supply. The CLOCKWORKS requires up to 300mA at
18VDC with a center POSITIVE plug. The CLOCKWORKS does not take
batteries. Using the wrong adapter/power supply may damage your unit and
void the warranty.
CLOCKWORKS
Rhythm Generator / Synthesizer
Congratulations on your purchase of the Electro-Harmonix
CLOCKWORKS! The CLOCKWORKS is perfect as a master clock for
sequencers and drum machines as well as for triggering electronic
percussion, classic EHX drum synths such as the Crash Pad or any other
electronic device that can be triggered by pulses. Best of all, it is a
faithful reissue of the much sought-after classic first released by ElectroHarmonix in 1980.
CLOCKWORKS does not create sound on its own but instead generates
pulses to trigger other devices. The pulse trigger can set the tempo for a
drum machine or sequencer such as an EHX 8 Step. CLOCKWORKS’
pulses might directly play a device by triggering a sound or note in the
external device. The great thing about the CLOCKWORKS is you have
four separate clock channels so you can connect four devices which will
all play rhythmically with each other.
The CLOCKWORKS may look complicated but what it does is actually
pretty simple: it takes a master clock and divides down its frequency by
a whole number between 1 and 8, outputting a pulse at the new
frequency created by the divider. There are 4 clock dividers or channels,
each driven from the same master clock, so creating polyrhythms is fun
and easy! Each channel has its own clock divider control, output level
control and output jack. The master clock can be generated internally by
the CLOCKWORKS or may come from an outside source. Although the
CLOCKWORKS looks very much like a digital product, it is actually fully
analog, not that there is anything wrong with digital products.
2
- CONTROLS, INDICATORS & I/O-
The following descriptions detail all of the sliders, switches, LEDs (lights)
and I/O jacks on the CLOCKWORKS:
CH 1-4 DIVISOR Sliders & LEDS
Each channel has its own independent DIVISOR slider control. Set a
given channel’s clock divider by moving the center of its DIVISOR slider
to the number you wish to divide by. For example, if you want Channel 2
to divide the master clock by 3, set the CH 2 DIVISOR to 3, centering the
slider on the mark for 3.
Above each DIVISOR slider is an LED. The LED blinks each time the
channel sends out its clock pulse.
CH 1-4 LEVEL Sliders
Each channel has its own independent output LEVEL control. The LEVEL
slider sets a given channel’s output pulse amplitude or level. The
maximum output pulse level is 10Vpp. The pulse waveform ranges from
0V to +10V, it does not go below 0V. As you bring the LEVEL sliders
down, the amplitude decreases to 0V.
HOW TO SET THE LEVEL CONTROL:
Start with the LEVEL control at its bottom position. Move the LEVEL
control upwards while listening to or watching the slave device to which
the channel is connected. At lower LEVEL settings the slave device might
not be triggered at all or by only every other pulse from the Clockworks.
Push the LEVEL control up until each pulse from the Clockworks triggers
the slave. Once you reach this position, push LEVEL up a little bit more
and then stop. The LEVEL control is now set.
OUT 1 - OUT 4 Output Jacks
Each clock divider channel has its own independent output jack. CH 1
connects to OUT 1, CH 2 to OUT 2, etc. The level of the pulse at each
output jack is controlled by its channel’s LEVEL slider. These jacks are
mono/TS ¼” jacks; insert any standard patch or instrument cable into
the jacks.
3
CLOCK TEMPO Slider
The TEMPO slider located in the CLOCK section of the Clockworks
adjusts the master tempo or speed of the internal clock generator. When
the CLOCK toggle switch is set to INT (for internal), the TEMPO slider
sets the tempo that all four clock channels follow. TEMPO slider range: in
BPM: 50BPM – 2,400BPM; in Hz: 0.85Hz - 40Hz.
CLOCK LEVEL Slider
The LEVEL slider located in the CLOCK section of the Clockworks adjusts
the output level of the internal master clock sent to the CLOCK IN/OUT
jack. The maximum output pulse is 14Vpp. The pulse waveform ranges
from 0V to +14V, it does not go below 0V. As you bring the LEVEL slider
down, the amplitude decreases to 0V. See the section on the previous
page entitled HOW TO SET THE LEVEL CONTROL for help setting the
CLOCK LEVEL control.
CLOCK INT/EXT Switch
The CLOCK switch determines the source for the master clock sent to
the four individual channels. When set to INT, the master clock is
generated internally by the Clockworks (and set by the TEMPO slider).
The internal clock is also sent out the CLOCK IN/OUT jack when set to
INT.
When the CLOCK switch is set to EXT (for external), the internal clock is
shut off and the Clockworks connects the external clock present at the
CLOCK IN/OUT jack to the four clock divider channels. If no clock is
connected to the CLOCK IN/OUT jack, the Clockworks TEMPO LED does
not blink, it remains in a static state. When set to EXT, the CLOCK LEVEL
slider is inactive. The CLOCK TEMPO slider adjusts the amplitude of the
external clock. We recommend you set TEMPO anywhere between its
maximum and middle slider positions when using external clock. The
acceptable input amplitude range for the external clock signal is 4Vpp to
15Vpp for a clock that swings positive only or +/-2 Vpp to +/-7.5 Vpp for
a bi-polar clock. The maximum acceptable external clock frequency that
yields full pulse amplitude out of all four channels is 65 Hz. The output
pulses drop in amplitude as the clock frequency rises above 65 Hz.
CLOCK LED
The LED above the TEMPO slider blinks at the same rate as the master
clock signal whether the clock is generated internally or externally.
4
CLOCK IN/OUT Jack
When set to INT mode, the CLOCK IN/OUT jack is an output, the
internally generated clock pulses will be output from this jack. When set
to EXT mode, CLOCK IN/OUT is an input, connect your externally
generated clock to this jack.
18V Power Jack
Insert the output plug from the supplied 18VDC/500mA AC Adapter that
came with your Clockworks into the 18V power jack located at the front
of your Clockworks. The Clockworks’ power jack is center positive,
requiring 18VDC with a minimum current rating of 300mA. The
Clockworks can be powered from a voltage as low as 15VDC but the
maximum output pulse amplitude will decrease and the maximum
divisor, at the slider’s lowest position, may increase to 9 or 10. We do
not recommend powering the Clockworks with voltages below 15VDC
which may yield unpredictable results.
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
workmanship 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 EHX Customer Service at 718-937-8300 or info@ehx.com for a
Return Authorization Number. Along with your pedal, please include a brief description of
the problem as well as your name, address, telephone number, copy of your receipt, and a
check or money order.
United States - $12
Canada - $15
Europe and outside countries - $25
Ship to:
Electro-Harmonix
C/O New Sensor Corporation
55-01 2nd Street
Long Island City, NY, 11101
Attn: Service Department
Please make checks/money orders payable to New Sensor Corporation.
To hear demos on all EHX pedals visit us on the web at www.ehx.com.
Email us at info@ehx.com.
Loading...