Yamaha Druid Digital Percussion DD-55 User Manual download pdf (Page 32)

Appendix

Troubleshooting.......................................................................

In many cases, problems or malfunctions that occur during use can be remedied easily.

Please check the following list before deciding that your DD-55 is damaged.

If the suggested remedy is ineffective, take the DD-55 to an authorized Yamaha dealer

for proper diagnosis and repair. Do not attempt to repair this digital instrument by

yourself as serious damage may occur.

Problem Cause/Solution

A buzz or click occurs momentarily when the

DD-55 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. When the

pads are struck, the display is dark and returns

to “000”.

The batteries are low and should be replaced with a com-

plete set of six new batteries immediately. Ideally, an

optional AC adaptor PA-5C should be used to power the

DD-55 (see page 5).

The custom pad voice assignments have disap-

peared or defaulted.

No sound comes from the speakers. • The volume is set too low. Adjust the volume (see page 8).

• A plug is inserted into the PHONES/OUTPUT jack and

should be taken out (see page 7).

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

OFF to ON (see page 26).

• You are in the MIDI/Utility mode. Exit the MIDI/Utility

mode (see page 25).

Striking two pads simultaneously results in one

of the pads not sounding.

Refer to “Adjusting the Pad’s Sensitivity ” to resolve the

problem (see page 13).

Striking a pad results in other pads also sound-

ing, though they were not struck.

The selected voice does not sound when the

pad is struck.

The desired voice has not been assigned to the pad.

Use the PAD ASSIGN function to program the desired voice

to the appropriate pad (see page 11).

The song or Demo does not start playback. The MIDI clock has been set to “E” (external).

Change the MIDI clock setting to “I” (internal) (see page

25).

“C|r” appears in the display when the

POWER switch is turned ON, and backed up

data has been erased.

Backed up data is initialized if batteries are not installed or

AC adaptor is disconnected while the power is turned off

(see page 31).

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