Yamaha DD-20S Owner's Manual - Page 12

Troubleshooting Specifications In many cases, seemingly big problems or malfunctions can be remedied easily. Please check the following list before deciding that your DD-20 is broken. If the problem is not listed here or the suggested remedy is ineffective, take the DD-20 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 DD20 is turned ON or OFF. ❏ This is a normal power surge noise that occurs when the STANDBY/ON 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 STANDBY/ON switch has been turned STANDBY 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 STANDBY/ON 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 Supply AC power adaptor YAMAHA PA-3B or PA-3C (sold separately) Batteries Six "AA" size, 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 * Specifications and descriptions in this owner's manual are for information purposes only. Yamaha Corp. reserves the right to change or modify products or specifications at any time without prior notice. Since specifications, equipment or options may not be the same in every locale, please check with your Yamaha dealer. 12