Yamaha DD-75 Owner's Manual download pdf (Page 42)

DD-75 Owner’s Manual

Troubleshooting

Problem

Cause/Solution

Power suddenly and unexpectedly turns off. This is normal and the Auto Power Off function may

have been activated (page 14). If desired, disable the

Auto Power Off function.

When the instrument is turned on, power is turned

off suddenly and unexpectedly.

The protection circuit has been activated due to over

current. This may occur when an AC adaptor other than

the one specified is used, or an AC adaptor is damaged.

Use the specified adaptor (page 54) only. If it should

appear to be malfunctioning, discontinue use immedi-

ately and have it inspected by qualified Yamaha service

personnel.

A buzz or click occurs momentarily when the

instrument is turned ON or OFF

This is a normal power surge noise that occurs when

the POWER switch is operated.

The LED display is completely dark. The batteries are low and should be replaced with a

complete set of six new batteries immediately. Ideally,

an optional AC adaptor should be used to power the

instrument.

When the pads are struck (or pedals are pressed),

the display is dark and returns to “1”.

The Custom Kit voice assignments or sensitivity

settings of each pads and pedals have disap-

peared or defaulted.

When using a mobile phone, noise is produced. Using a mobile phone in close proximity to the instru-

ment may produce interference. To prevent this, turn off

the mobile phone or use it further away from the instru-

ment.

Noise is heard from the instrument’s speakers or

headphones when using the instrument with the

application on iPhone/iPad.

When you use the instrument along with the application

on your iPhone/iPad, we recommend that you set “Air-

plane Mode” to “ON” on your iPhone/iPad in order to

avoid noise caused by communication.

No sound comes from the instrument. • The volume is set too low. Adjust the volume (page

29).

• A plug is inserted into the [PHONES/OUTPUT] jack

and should be taken out (page 14).

• The LOCAL ON/OFF is set to OFF. Set the LOCAL

ON/OFF to ON (page 40).

Suddenly “FUL” appears and recording is stopped. The amount of recorded data has exceeded the limit of

7,000 notes per song.

Song is automatically started when pad is struck

(or pedal is pressed).

Pad Start is set to ON. Set Pad Start to OFF (page 30).

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Yamaha DD-75 Owner's Manual Page 42

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