Yamaha DD-45 Owners Manual - Page 7
Setting Up - ydd 40 manual
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Setting Up Make all necessary settings below BEFORE turning the power on (page 9). CAUTION • Before connecting the instrument to other electronic components, turn off the power of all the components. Also, before turning any components on or off, make sure to set all volume levels to minimum (0). Otherwise, electrical shock or damage to the components may occur. Power Requirements Although the instrument will run either from an AC power 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 Power Adaptor q Connect the AC adaptor to the power supply jack. WARNING • Use the specified adaptor (page 31) only. The use of other adaptors may result in irreparable damage to both the adaptor and the instrument. w Plug the AC adaptor into an AC outlet. q w Adaptor AC outlet Using Batteries q Open the battery compartment cover located on the instrument's bottom panel. w Insert six "AA" size, LR6 or equivalent batteries, being careful to follow the polarity markings on the side of the compartment. e Replace the compartment cover, making sure that it locks firmly in place. q w CAUTION • Unplug the AC power adaptor when not using the instrument, or during electrical storms. • Even when the instrument is turned off, electricity is still flowing to the instrument at the minimum level. When you are not using the instrument for a long time, make sure you unplug the AC power adaptor from the wall AC outlet. NOTE • Connecting the AC power adaptor automatically supplies power from the adaptor and overrides battery power, even when batteries are installed. 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 batter- ies, following the precautions listed below. CAUTION • Use alkaline batteries for this instrument. Other types of batteries (including rechargeable batteries) may have sudden drops of power when battery power becomes low. • Make sure to install the batteries with the proper orientation, maintaining the correct polarity (as shown). Incorrect battery installation may result in heat, fire and/or leaking of corrosive chemicals. • When the batteries run down, replace them with a complete set of six new batteries. NEVER mix old and new batteries. Do not use different kinds of batteries (e.g. alkaline and manganese) at the same time. • If the instrument is not to be in use for a long time, remove the batteries from it, in order to prevent possible fluid leakage from the battery. DD-45/YDD-40 Owner's Manual 7