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When running the unit on battery power, connect an instrument cable into the OUT L jack to automati-
cally switch the power on. To prevent damage to your speakers or other connected devices, always turn
down the volume and turn off all devices before making any connections. Once all of your equipments
has been connected, start powering up your devices.
Note: It is important to remember the Golden Rule of audio… “LAST ON, FIRST OFF.” Translated, this
means that when turning on your system, you should always turn your amplifier on LAST, and when turn-
ing your system off, turn your amp off FIRST. This helps avoid any loud pops caused by inrush current at
power up, or down, which can sometimes damage loudspeakers.
Note: The HL77 will take a few seconds to run a self-test and the display will read “SC” when powering
on. Once completed, the HL77 will be ready to operate.
Install a standard 9-volt battery by removing the battery door and attaching the battery to the terminal
connector. Fit the battery into the compartment and reinstall the battery door.
We recommend using an adaptor to power the HL77. You can power the pedal using a 9V power supply.
Simply plug the power adapter into the DC inlet and then, plug the power adapter into a standard AC
power outlet.
Powering the HL77
Installing a Battery
Using a AC/DC Power Adapter
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