Preparation - Yamaha ACD1 Owner's Manual

Amplifier control device

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Preparation

Connecting the AC power cable

• Be sure to turn all devices OFF before connecting AC mains power.

CAUTION

First plug the female-connector end of the included AC cable into the [AC IN] socket on the rear panel of the ACD1, then

plug the male plug into an appropriate AC outlet. Be sure to use an AC outlet of the voltage speciﬁed for the device.

Turning the power on and off

• To prevent the initial power-on surge from generating a large noise spike or damaging your speaker system, turn the

devices on in the following order: audio sources, mixer (such as M7CL or PM5D), ACD1, and ﬁnally power ampliﬁ-

CAUTION

ers. Reverse this order when turning power off.

• If you power-on the ampliﬁer before the ACD1, the ampliﬁer may be ready before the mute or level setting of the

ACD1 becomes effective, resulting in an unexpected loud sound.

• If you power-off the ACD1 before your XP/XM/XH series ampliﬁers, the ampliﬁer's settings will return to their default

state.

Press the [POWER] switch to power-on the ACD1.

Press the [POWER] switch again to turn off the power.

• The settings at the time you powered-off are remembered. When you turn on the power again, the unit will start up

NOTE

with the same settings. You can use the "Last Mem. Resume" setting to set up the unit so that at startup it will recall

the scene number selected before you turned off the power to the device.

• Do not power-off the unit while its LCD indicates "Do not turn off!" Otherwise, a malfunction may occur.

CAUTION

• A small amount of current is ﬂowing even when the power switch is off. If you will not be using this device for an

extended period of time, be sure to disconnect the power plug from the AC outlet.

CAUTION

ACD1 Owner's Manual

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