Jack Deville Electronics dark echo Manual - Operation & Bypass
Operation & Bypass
The footswitch controls the state of the Dark echo. Firmly depress the footswitch to engage or disengage the
Dark Echo. The Dark Echo employs true-bypass switching, so your tone is unaffected when the effect is
bypassed.
PLEASE NOTE: The echo circuit is operating at all times, even when the effect is bypassed; hence, it is not
“self-clearing.” As a result, you can store your oscillations in the Dark Echo (they will continue to
grow/degrade/be affected by the controls) while the unit is in bypass mode, and they are available to
you upon re-engagement.
LED Indicator
The indicator LED alerts the operator of the Dark Echo’s state.
LED active indicates that signal is flowing through the Dark Echo.
LED extiguished indicates that signal is bypassing the Dark Echo.
Level Control
An internal output level trim has been included providing -2db to +6db gain from the Dark Echo.
It is accesible by removing the back cover and is located at the lower right corner of the PCB.
Power Requirements
The Dark Echo has been designed to operate at 9VDC, and can be powered by an internal 9V battery
or an external 9VDC power supply. A power jack is supplied on the right side of the enclosure, this jack
follows the conventional negative center-pin polarity scheme. Please observe these requirements when
powering the unit by an external power source. Failure to follow these requirements may damage/destroy
your Dark Echo and/or your power supply.
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