Yamaha ACD1 - page 22

ACD1 Reference Manual

Appendix

Troubleshooting

Symptom Possible causes Response

All scene data saved in

the ACD1 has disap-

peared

The power was turned off while the

ACD1’s data was being saved

Once again synchronize the unit with Amp Editor to transmit

the settings from Amp Editor.

The internal battery has run down Go to “5. Utility” ➝ “Battery” to check the battery status. If the

indication is “Low Battery” or “No Battery,” contact your

Yamaha dealer listed at the end of the ACD1 owner’s manual

to have the battery replaced.

Cannot edit parameters Panel Lock is enabled Change the “5. Utility” ➝ “Panel Operation” setting to Normal,

or use Amp Editor to defeat Panel Operation.

You are attempting to edit a parameter of

an ampliﬁer that is not connected

Connect the ampliﬁer whose settings you want to change.

The corresponding ampliﬁer is not pow-

ered-on

Power-on the ampliﬁer whose settings you want to change.

Power will not turn on,

display will not light

The power cable is not connected prop-

erly

Connect the power cable properly.

The POWER switch is not turned on Turn the POWER switch on.

The backlight setting is “Auto OFF” If you want the LCD backlight to stay lit, turn the “5. Utility” ➝

“LCD Backlight” setting “ON.”

Can’t synchronize with

Amp Editor

A cable is disconnected or broken Check whether a cable might be disconnected or broken.

Ampliﬁer does not oper-

ate as speciﬁed

The ampliﬁer was powered-on before the

ACD1

Power-on the equipment so that the ACD1 starts-up before

the ampliﬁers connected to the ACD1.

Can’t monitor/control an

ampliﬁer

A cable is disconnected or broken Check whether a cable might be disconnected or broken.

A cable exceeds the allowable length Make sure that the cable connected to the [MONITOR/

REMOTE] connector is no longer than 50 meters.

Make sure that the cable connected to the [DATA PORT] con-

nector extends no longer than a total of 500 meters to its last

point.

Make sure that each individual cable between your computer

and the ACD1 is no longer than 100 meters.

In the middle of a daisy-chain there is an

ampliﬁer whose T-switch is ON

Tu rn off the T-switch for all ampliﬁers other than the last ampli-

ﬁer.

Speciﬁcations

Scene Memory 50 scenes per ampliﬁer

Number of ampliﬁers

that can be connected

Via the DATA PORT connector Up to 32 units

Via the MONITOR/REMOTE

connector

Up to 8 units

Display 16 characters × 2 lines backlit LCD

Power Requirements 100 V, 50 Hz/60 Hz

Power Consumption 15 W

Dimensions (W × H × D) 480 × 44 × 362 mm

Weight 4.0 kg

Operating temperature range 0 °C–40 °C

Storage temperature range -20 °C–60 °C

AC Cable Length 250 cm

Accessories

AC power cord, Euroblock plug (16P), Owner’s Manual, Rubber feet × 4