Footswitch Latching And Momentary Action; Notes And Specifications - Electro-Harmonix SPRUCE GOOSE OVERDRIVE Manual

Spruce Goose employs True Bypass with a mechanical relay. The footswitch includes
a momentary action when you press and hold the switch for more than half a
second. The momentary footswitch action may also be disabled, see the section

Footswitch Latching and Momentary Action.

7. INPUT Jack Audio input jack. Impedance: 680kΩ.
8. AMP Jack Audio output Jack. Impedance: 550Ω.
9. 9VDC Power Jack An optional 9VDC, center-negative power supply can be connected
to the power jack to provide power without a battery. The Spruce Goose requires 20mA
at 9VDC on a center-negative plug. Do not exceed 12VDC at the power jack.
When using a 9V battery, plugging into the INPUT jack activates power. The input cable
should be removed when the unit is not in use to avoid running down the battery.
To change the 9-volt battery, you must remove the 4 screws on the bottom of the
Spruce Goose. Once the screws are removed, you can take off the bottom plate and
change the battery. Please do not touch the circuit board while the bottom plate is
off, or you risk damaging a component.
Footswitch Latching and Momentary Action
The soft footswitch works both like a standard latching footswitch and a momentary
footswitch. The latching action means each press and release of the footswitch will
toggle between bypass and effect modes. A momentary change between bypass and
effect occurs when you press and hold the footswitch. The Spruce Goose changes state
immediately upon pressing the footswitch. If you continue to hold the footswitch—
for more than half a second—it will return to the previous state when you release
the footswitch.
Momentary hold action can be disabled completely by performing the following
procedure:
1. Power down the Spruce Goose.
2. Press and hold the footswitch.
3. While holding down the footswitch, apply power to the Spruce Goose.
4. Continue to hold down the footswitch. After about 2 seconds, the LED blinks.
A slow blink means momentary footswitch holds are disabled. A fast blink
means momentary footswitch holds are enabled.
5. Release the footswitch.
The momentary footswitch hold setting is remembered through power-cycles so you
can set it and forget it.
Audio input impedance at INPUT jack: 680kΩ
Audio output impedance at AMP jack: 550Ω
Current draw: 20mA at 9VDC
Power Supply: 9VDC, Center-negative polarity
True bypass switching

Notes and Specifications

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