Yamaha EZ-220 Owner's Manual - Page 10

Playing the Keyboard Setting Up Power requirements Although the instrument will run either from an optional 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 Power Adaptor 1 Make sure that the power of the instrument is off (display is blank, except for notation staff). WARNING • Use the specified adaptor (page 54) only. Using the wrong adaptor can result in damage to the instrument or overheating. 2 Connect the AC adaptor to the DC IN 12V jack. 3 Plug the AC adaptor into an AC outlet. 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 off the power switch and disconnect the plug from the outlet. Even when the power switch is turned off, electricity is still flowing to the product at the minimum level. When you are not using the product for a long time, make sure to unplug the power cord from the wall AC outlet. 2 Set the [BATTERY TYPE] switch on the rear panel to "Ni-MH" or "ALKALINE" depending on the battery type you are using. • Rechargeable Ni-MH batteries • Alkaline batteries • Manganese batter- ies NOTICE • The rechargeable battery may be damaged or the battery life may be shortened if you set the [BATTERY TYPE] switch to a position different from the actual battery type. 3 Open the battery compartment cover located on the instrument's bottom panel. 2 AC power adaptor 3 AC outlet  Using Batteries This instrument requires six "AA" size, Alkaline (LR6)/Manganese (R6) batteries, or rechargeable nickel-metal hydride batteries (rechargeable Ni-MH batteries). The Alkaline batteries or rechargeable NiMH batteries are recommended for this instrument, since other types may result in poorer battery performance. WARNING • When using Ni-MH batteries, follow the instructions that came with the batteries. Use only the specified charger device when charging. 1 Make sure that the power of the instrument is off (display is blank, except for notation staff). 10 EZ-220 Owner's Manual 4 Insert the six new batteries, being careful to follow the polarity markings on the side of the compartment. 5 Replace the compartment cover, making sure that it locks firmly in place. NOTICE • Never connect or disconnect the AC power adaptor when the batteries are installed and the power is on. Doing so will turn the power off, and may cause the settings to be initialized.