Yamaha DD-75 DD-75 Owners Manual - Page 12

Setting Up Setting Up Be sure to do the following operations BEFORE turning on the power. Power Requirements Although the instrument will run either from an AC adaptor or batteries, Yamaha recommends use of an AC adaptor whenever possible. An AC adaptor is more environmentally friendly than batteries and does not deplete resources. Using an AC Adaptor Make sure that the [ ] (Standby/On) switch is off, then connect the AC adaptor in the order shown in the illustration. Using Batteries This instrument requires C size, Alkaline (LR14)/Manganese (R14) batteries, or rechargeable nickel-metal hydride batteries (rechargeable Ni-MH batteries). The Alkaline batteries or rechargeable Ni-MH batteries are recommended for this instrument, since other types may result in poorer battery performance. 1 Make sure that the power of the instrument is off. 2 Open the battery compartment cover located on the instrument's bottom panel. DC IN jack (page 11) 1 AC adaptor 2 AC outlet WARNING • Use only the specified AC adaptor (page 54). Using the wrong AC adaptor can result in damage to the instrument or overheating. • When using the AC adaptor with a removable plug, make sure to keep the plug attached to the AC adaptor. Using the plug alone can cause electric shock or fire. • Never touch the metallic section when attaching the plug. To avoid electric shock, short circuit or damage, also be careful that there is no dust between the AC adaptor and plug. Plug Slide the plug as indicated. The shape of the plug differs depending on your area. CAUTION • When setting up the product, make sure that the AC outlet you are using is easily accessible. If some trouble or malfunction occurs, immediately turn the power off and disconnect the plug from the outlet. NOTE • Follow the order shown above in reverse when disconnecting the AC adaptor/power cord. 3 Insert the six new batteries, being careful to follow the polarity markings on the inside of the compartment. 4 Replace the compartment cover, making sure that it locks firmly in place. NOTICE • Connecting or disconnecting the power adaptor with batteries installed may turn the power off, resulting in loss of data being recorded or transferred at the time. • Make sure to set the battery type correctly (page 13). • When battery power becomes too low for proper operation, the volume may be reduced, the sound may be distorted, and other problems may occur. When this happens, make sure to replace all batteries with new ones or already recharged ones. NOTE • This instrument cannot charge the batteries. Use only an appropriate charger device when charging. • Power will be automatically drawn from the AC adaptor if an AC adaptor is connected while batteries are installed in the instrument. 12 DD-75 Owner's Manual