Yamaha PSR-540 Owner's Manual - Page 12
Setting Up, Power supply connections
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Setting Up This section contains information about setting up your PSR-540 and preparing to play. Be sure to go through this section carefully before turning the power on. Power supply connections Although the PSR-540 will run either from an optional AC adaptor or batteries, Yamaha recommends use of the more environmentally safe AC adaptor. Follow the instructions below according to the power source you intend to use. s Using An Optional AC Power Adaptor 1 Make sure that the STANDBY/ON switch of the PSR-540 is set to STANDBY. 2 Connect the AC adaptor (PA-6 or other adaptor specifically recommended by Yamaha) to the power supply jack. 3 Plug the AC adaptor into an AC outlet. When turning the power OFF, simply reverse the procedure. CAUTION • Never interrupt the power supply (e.g. remove the batteries or unplug the AC adaptor) during any PSR540 record operation! Doing so can result in a loss of data. WARNING • Use ONLY a Yamaha PA-6 AC Power Adaptor (or other adaptor specifically recommended by Yamaha) to power your instrument from the AC mains. The use of other adaptors may result in irreparable damage to both the adaptor and the PSR-540. • Unplug the AC Power Adaptor when not using the PSR-540, or during electrical storms. s Using Batteries For battery operation the PSR-540 requires six 1.5V SUM-1, "D" size, R-20 or equivalent batteries. When the batteries need to be replaced, "Battery Low" may appear on top of the display, the volume may be reduced, the sound may be distorted, and other problems may occur. When this happens, turn the power off and replace the batteries. Replace the batteries as follows: 1 Open the battery compartment cover located on the instrument's bottom panel. 2 Insert the six new batteries, being careful to follow the polarity markings on the inside of the compartment. 3 Replace the compartment cover, making sure that it locks firmly in place. CAUTION • 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. • Plugging or unplugging the AC power adaptor while the batteries are installed will reset the PSR-540 to the defaults. 12 10