Yamaha PSR-78 Owner's Manual - Page 12

5. Stop the Song. Press the START/STOP button. If playback was started by pressing the START/STOP button, the selected Song stops automatically at the end. If Minus One is on, the selected Song repeats playback indefinitiely. Also, if you start Song playback with the DEMO button, all Songs play back repeatedly in succession from the song number 01, indefinitely. One Touch Setting in the Song Mode The One Touch Setting function works with the Minus One function and automatically selects an appropriate Voice for playing the melody along with the Song you select. To turn on the One Touch Setting function, press the ONE TOUCH SETTING button. (The OTS icon appears in the display.) Minus One Minus One, as its name implies, takes away the melody part of the Song, allowing you to play that part yourself. You can turn Minus One on before starting a Song, or do it even while a Song is playing. To help you play the "missing" melody, scores for all Songs have been provided; see pages 11. To use the Minus One function with the selected Song, press the MINUS ONE button. (The Minus One icon appears in the display.) OTS ONE TOUCH SETTING button OTS icon in display To turn the function off, press the button again. Keep in mind that even with the One Touch Setting function on, there are some Songs which change the selected Voice in the middle of the Song. MINUS ONE button MINUS ONE icon in display Troubleshooting Problem Possible Cause and Solution When the PortaTone is turned on or off, a buzzing sound is This is normal and indicates that the PortaTone is receiving electrical power. temporarily produced. The sound of the Voices or rhythms seems unusual or strange. The PSR-190/78 is suddently reset to the default status. The battery power is too low. Replace the batteries. (See page 2) Not all notes are heard when playing a number of notes simultaneously. Too many keys are pressed at the same time. The PortaTone is polyphonic up to a maximum of 12 notes. (See the note on page 4) The sound of the Voice changes from note to note. The AWM tone generation method uses multiple recordings (samples) of an instrument across the range of the keyboard; thus, the actual sound of the Voice may be slightly different from note to note. There is no sound even when the keyboard is played or when a Song is being played back. Check that nothing is connected to the PHONES/AUX OUT jack on the rear panel. When a set of headphones is plugged into this jack, no sound is output. 10