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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-35 is damaged.
If the suggested remedy is ineffective, take the DD-35 to an authorized Yamaha
dealer for proper diagnosis and repair. Do not attempt to repair this digital instru-
ment by yourself as serious damage may occur.
Problem Cause/Solution
A buzz or click occurs momentarily when
the DD-35 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 “00”.
The batteries are low and should be replaced with a complete set
of six new batteries immediately. Ideally, an optional AC adaptor
PA-3B should be used to power the DD-35 (see page 5).
The custom pad voice assignments have
disappeared 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 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 drum pads suddenly light. If you are not touching or playing the DD-35, the pads will light
automatically.