Troubleshooting; Specifications - Yamaha ACD1 Reference Manual

Appendix

Troubleshooting

Symptom
All scene data saved in
the ACD1 has disap-
peared
Cannot edit parameters
Power will not turn on,
display will not light
Can't synchronize with
Amp Editor
Amplifier does not oper-
ate as specified
Can't monitor/control an
amplifier
Specifications
Scene Memory
Number of amplifiers
that can be connected
Display
Power Requirements
Power Consumption
Dimensions (W × H × D)
Weight
Operating temperature range
Storage temperature range
AC Cable Length
Accessories
22
ACD1 Reference Manual
Possible causes
The power was turned off while the
ACD1's data was being saved
The internal battery has run down
Panel Lock is enabled
You are attempting to edit a parameter of
an amplifier that is not connected
The corresponding amplifier is not pow-
ered-on
The power cable is not connected prop-
erly
The POWER switch is not turned on
The backlight setting is "Auto OFF"
A cable is disconnected or broken
The amplifier was powered-on before the
ACD1
A cable is disconnected or broken
A cable exceeds the allowable length
In the middle of a daisy-chain there is an
amplifier whose T-switch is ON
Via the DATA PORT connector
Via the MONITOR/REMOTE
connector
Once again synchronize the unit with Amp Editor to transmit
the settings from Amp Editor.
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.
Change the "5. Utility" ➝ "Panel Operation" setting to Normal,
or use Amp Editor to defeat Panel Operation.
Connect the amplifier whose settings you want to change.
Power-on the amplifier whose settings you want to change.
Connect the power cable properly.
Turn the POWER switch on.
If you want the LCD backlight to stay lit, turn the "5. Utility" ➝
"LCD Backlight" setting "ON."
Check whether a cable might be disconnected or broken.
Power-on the equipment so that the ACD1 starts-up before
the amplifiers connected to the ACD1.
Check whether a cable might be disconnected or broken.
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.
Turn off the T-switch for all amplifiers other than the last ampli-
fier.
50 scenes per amplifier
Up to 32 units
Up to 8 units
16 characters × 2 lines backlit LCD
100 V–240 V, 50 Hz/60 Hz
15 W
480 × 44 × 362 mm
4.0 kg
0 °C–40 °C
-20 °C–60 °C
250 cm
AC power cord, Euroblock plug (16P), Owner's Manual, Rubber feet × 4
Response