The Yamaha PSR-15 PortaTone is a portable electronic instrument powered by internal batteries or optional household/car adaptors. The document details how to insert batteries, attach the music rest, and select between battery, mains, or car power sources.
Key operating instructions include switching on the device (noting a required delay after shutdown), selecting from six built-in orchestra voices using the Orchestra Voice Selector, and adjusting volume via the Master Volume control. The manual also covers the use of the built-in metronome, auto bass/chord functions, and external jacks.
| Power Source | Internal batteries, household current, or car battery |
|---|---|
| Battery Type | Six 1.5V SUM-1, "D" size, R-20, or alkaline |
| Household Adaptor Models | PA-4 or PA-1 |
| Car Battery Adaptor Model | CA-1 |
| Number of Voices | Six |
The instrument will not function because the built-in microcomputer requires a longer interval before receiving power again.
If the lamp glows only faintly when using battery power, the batteries are depleted and need to be changed.
Only Power Adaptor PA-4 or PA-1 is usable for household current.