What to do if the Yamaha Electronic Keyboard volume is too soft or the sound quality is poor?
If the volume is too soft, the sound quality is poor, the Style/Tabla/Song/Arpeggio stops unexpectedly, the recorded data does not play correctly, or the LCD display goes dark with settings reset, the batteries may be low or dead. Replace all six batteries with completely new or completely recharged ones, or use the AC power adapter.
How to fix no sound on my Yamaha PSR-I455?
If no sound is produced when playing the Yamaha Electronic Keyboard, check if headphones or an audio cable are connected to the PHONES/OUTPUT jack; if so, no sound will come from the instrument's speaker. Also, check the Local Control status (page 49) and ensure it is set to ON.
Why is the sustain pedal reversed on my Yamaha Electronic Keyboard?
If the footswitch on your Yamaha Electronic Keyboard is producing the opposite effect (e.g., pressing cuts off sound), the polarity of the footswitch may be reversed. Ensure the footswitch plug is properly connected to the SUSTAIN jack before turning on the power.
Why does the right hand side of my Yamaha Electronic Keyboard make no sound?
If no sound is produced when playing keys in the right hand area, although chords played in the left hand area are recognized on your Yamaha Electronic Keyboard, check if the Dictionary function (page 45) is in use. If it is, this is normal.
Why is there no sound except rhythm on my Yamaha Electronic Keyboard?
If only the Rhythm part of a Style produces sound on your Yamaha Electronic Keyboard, check the ACMP status (page 22) and ensure that ACMP is turned on.
Why does my Yamaha Electronic Keyboard make noise when I use my mobile phone?
If you are getting noise when using a mobile phone close to the Yamaha Electronic Keyboard, it may be due to interference. Turn off the mobile phone or move it further away from the instrument.
What to do if my Yamaha PSR-I455 sounds wrong?
If your Yamaha Electronic Keyboard produces an unexpected sound that you can't restore, it may be due to the Knobs. Change the Voice, Style, Tabla/Tanpura, or Song, or press the [PORTABLE GRAND] button to reset the panel settings to their original state.
Why are some sounds missing on my Yamaha PSR-I455?
If some Voices don't sound or are cut off while playing your Yamaha Electronic Keyboard, it's likely that you've exceeded the maximum polyphony of 32 simultaneous notes. If the Main, Dual, and Split Voices are used along with Arpeggio, Style, Tabla/Tanpura, or Song playback, some notes/sounds may be omitted.
Why won't my Yamaha PSR-I455 Style/Song start?
If the Style, Tabla/Tanpura, or Song won't start when pressing [START/STOP] or the Arpeggio won't start when a note is pressed on your Yamaha Electronic Keyboard, check the External Clock status (page 50). Normally, this parameter should be set to OFF.
Why is there no rhythm sound in Styles 194-206 on my Yamaha PSR-I455?
If Styles 194ā206 on your Yamaha Electronic Keyboard produce no rhythm drum sound, this is normal. These styles have no rhythm parts. Turn ACMP on and specify a chord in the left hand area to play other Style parts.
Guidelines for safe use of power adapters, preventing electrical hazards, and handling the instrument.
Instructions for safe battery installation, use, charging, and disposal.
Actions to take for instrument malfunctions like unusual smells, smoke, or sound loss.
Advice on using AC adaptors, accessible outlets, and safe component connections.
Precautions for instrument placement, physical force, and volume levels to prevent injury.
Tips for instrument care, avoiding noise interference, and operating within temperature limits.
Identification of main controls on the front panel like volume, pitch bend, and live controls.
Controls for managing instrument voices including Split, Dual, Harmony, and Arpeggio.
Buttons for controlling Demo, Lesson, Recording, Metronome, and Tempo functions.
Details on rear panel connections including USB, Sustain, Phones/Output, and Power.
Buttons used to toggle individual song tracks on or off during playback.
Instructions for connecting and safely operating the instrument with an AC power adaptor.
Guide to installing batteries and selecting the correct battery type.
Steps for powering the instrument on, off, and managing the master volume.
Steps to choose an auto-accompaniment style and start playback.
Explanation of Listen, Timing, and Waiting modes for learning songs.
How to select a song, turn off parts, and start the lesson playback.
Utilizing the Repeat & Learn feature to practice difficult song sections.
Data maintained when power is off, including user songs and settings.
How to restore factory default settings via Backup Clear or Flash Clear.
Understanding and using Intro, Main, Auto Fill, and Ending sections within styles.
Step-by-step guide to navigating and changing instrument functions.
Reference to detailed parameters available within the instrument's functions.
Important safety and handling guidelines for USB devices.
Overview of saving and loading data like user songs and settings.
Steps to connect a USB flash memory device to the instrument.
Guide to preparing a USB flash memory for use with the instrument.
How to save user songs, styles, and registration settings to a USB drive.
Converting and saving user songs in Standard MIDI File (SMF) format.
Restoring user songs, styles, and settings from a USB drive to the instrument.
Importing style files from USB to use with the instrument.
Removing user files (.usr) from the connected USB flash memory.
Removing Standard MIDI Files (.smf) from the USB flash memory.
General| Display | Custom LCD |
|---|---|
| Amplifiers | 2.5W + 2.5W |
| Speakers | 12 cm x 2 |
| One Touch Setting (OTS) | Yes |
| Reverb | 9 types |
| Chorus | 4 types |
| Master EQ | 6 types |
| Harmony | 26 types |
| Featured Voices | Indian Voices |
| Styles | 206 styles |
| Featured Styles | Indian Styles |
| Songs | 30 |
| Functions | Dual, Split, Metronome, Transpose, Tuning |
| Recording | 5 Songs |
| Connectivity | USB to Host |
| Power Supply | PA-150 or equivalent |
| Connectors | DC IN 12V, Headphones/Output, Sustain Pedal |
| Keyboard Type | 61-key Touch Response Keyboard |
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