Yamaha DD-9 Owner's Manual - Page 10
Specifications, Troubleshooting - dd 9 digital percussion
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Troubleshooting Specifications In many cases, seemingly big problems or malfunctions can be remedied easily. Please check the following list before deciding that your DD-9 is broken. If the problem is not listed here or the suggested remedy is ineffective, take the DD-9 to an authorized Yamaha dealer for proper diagnosis and repairs. Do not attempt to repair this digital percussion instrument as serious damage may occur. A buzz or click occurs momentarily when the DD-9 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 immediately. No sound comes from the speakers. ❏ The volume is turned down too low and should be adjusted up appropriately. ❏ A plug is inserted into the HEADPHONES/AUX. OUT jack and should be taken out immediately. The wrong voice plays when you strike a percussion pad. ❏ The desired voice has not been assigned to the percussion pad. Use the PAD ASSIGN function to program the desired voice to the appropriate percussion pad. The custom pad voice assignments have disappeared or defaulted. ❏ The batteries are low and should be replaced immediately. ❏ The POWER switch has been turned OFF and ON and the default voices have replaced the desired voices. Use the PAD ASSIGN function to program the desired voices again. When the percussion pads are struck, the LED display goes dark momentarily and then changes to the default reading "00". ❏ The batteries are low and should be replaced immediately. Percussion pads 4 (touch sensitive) SE pads 4 Percussion sets 9 preset + 1 custom Auto Rhythm Styles 100 Instrument and Sound Effect Voices 55 Auxiliary Functions Tap Start, Auto Roll, Auto Rhythm Style, Demonstration Song Panel Controls POWER switch, SELECTOR dial, VOLUME buttons, STYLE button, PERC. SET button, TEMPO button, TAP START button, PAD ASSIGN buttons, START/STOP button, AUTO/ ROLL button, SE SELECT button, DEMO button LED Display STYLE/PERCUSSION SET/ TEMPO and other settings Connectors DC IN 10-12V Headphones/AUX.OUT Main amplifier 3.8W (EIAJ) Speaker 10.0cm Power Source AC power adaptor YAMAHA PA-1, PA-1B, or PA-3 (sold separately) Batteries Six "AA" size, SUM-3, R-6, or equivalent batteries (sold separately) Dimensions (W x D x H) 435mm x 236mm x 160mm (17 1/8" x 9 1/4" x 6 1/3") Weight 1.4 Kg (3 lbs., 1oz.) Supplied accessories Percussion Sticks Voice List * Specifications subject to change without notice. 8