Yamaha PSR-73 Owner's Manual (image) - Page 3

Getting Started Power Requirements Your PortaTone can run either on batteries (sold separately) or on normal household current by using the optional Yamaha PA-3/4/40 Power Adaptor. Using an AC Power Adaptor To connect your PortaTone to a wall socket, you will need the optionally available Yamaha PA-3/4/40 Power Adaptor. Use of other AC adaptors could result in damage to the instrument, so be sure to ask for the right kind. Plug the adaptor into a convenient wall outlet and its connector into the DC 10-12V IN jack on the back of your PortaTone. Using Batteries Inserting Batteries Turn the instrument upside-down and remove the battery compartment lid. Insert six 1.5-volt size "D" batteries as shown in the illustration, making sure that the positive and negative terminals are properly aligned. Replace the lid. Accessory Jacks Using Headphones For private practicing and playing without disturbing others, connect a set of stereo headphones to the rear panel HEADPHONES/AUX OUT jack. Sound from the built-in speaker system is automatically cut off when you insert a headphone plug into this jack. HEADPHONES/ AUX OUT DC IN 10-12V Connecting a Keyboard Amplifier or Stereo System After making sure the PortaTone and any external devices are turned off, connect one end of a stereo audio cable to the LINE IN or AUX. IN jack(s) of the other device and the other end to the HEADPHONES/AUX OUT jack of the PortaTone. The Music Stand Insert the bottom edge of the music stand into the slot located at the top rear of the PSR-73 control panel. When the Batteries Run Down When the batteries run low and the battery voltage drops below a certain level, the PortaTone may not sound or function properly. As soon as this happens, replace them with a complete set of six new batteries. Never mix old and new or different types of batteries (e.g., alkaline and manganese). Auto Power OFF The PSR-73 features an Auto Power OFF function that automatically turns the power OFF if the instrument is not used for approximately 30 minutes. This functions whether batteries or the AC power adaptor is used. 2