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Optimus MD-1150 - User Manual

Optimus MD-1150
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Cat. No. 42-4039
OWNER’S MANUAL
Please read before using this equipment.
Electronic Keyboard
MD-1150
A
42-4039.fm Page 1 Friday, March 3, 2000 8:55 AM

Table of Contents

Questions and Answers

  • M
    Michael ContrerasJul 26, 2025
    How to fix an Optimus Electronic Keyboard with no sound?
    • J
      Jean BartlettJul 26, 2025
      If your Optimus Electronic Keyboard isn't producing sound even when you press the keys, here's what to check: * Ensure the keyboard is powered on by setting the POWER/MODE to OFF and then ON again. * Increase the volume by repeatedly pressing the MAIN VOLUME button. * Disconnect any headphones that are plugged in. * Verify the power supply: Check if the battery symbols (+/–) are correctly aligned, ensure the batteries are fresh, and confirm the AC adapter is properly connected. * If POWER/MODE is set to FINGERED, switch it to NORMAL or CONCERT CHORD. Alternatively, press 3 or 4 keys to form a chord while in FINGERED mode.
  • K
    Kenneth FordJul 30, 2025
    What to do if my Optimus Electronic Keyboard has no sound when connected to an external amplifier?
    • L
      Lisa ParkerJul 30, 2025
      If your Optimus Electronic Keyboard doesn't produce sound when connected to an external amplifier, try the following: * Increase the volume by repeatedly pressing the MAIN VOLUME button. * Replace the connection cord, as it may be defective.
  • M
    Mark MasseyAug 5, 2025
    Why does the key or tuning not match on my Optimus MD-1150 when playing with another MIDI instrument?
    • M
      Matthew LongAug 5, 2025
      If the key or tuning doesn't match when playing your Optimus Electronic Keyboard along with another MIDI instrument, set the tuning or transpose to 0 or 00.
  • K
    Kara MontgomeryAug 10, 2025
    What to do if there is no sound when receiving and playing MIDI data on my Optimus MD-1150?
    • M
      mercedesvaldezAug 10, 2025
      If you're not getting any sound when receiving and playing MIDI data on your Optimus Electronic Keyboard, check the MIDI cable connections to ensure they are properly connected.
  • J
    John CastroAug 14, 2025
    Why are bass notes one octave lower on my Optimus MD-1150?
    • Y
      ysantosAug 14, 2025
      If bass notes in General MIDI data are being sent out one octave lower on your Optimus Electronic Keyboard, set the tone map parameter to G.
  • C
    Crystal SantiagoAug 20, 2025
    How to fix incorrect sounds sent to another MIDI device by my Optimus MD-1150?
    • A
      angelalloydAug 20, 2025
      If sounds sent to another MIDI device by your Optimus Electronic Keyboard don't sound correct, turn off the MIDI THRU function on the other device.

Summary

Safety and Regulatory Information

FCC Compliance Statement

Explains compliance with FCC rules for radio and TV interference.

Safety Precautions

Advises on reducing risks of fire, shock, and proper handling.

Keyboard Features Overview

61 Full-Size Keys with Touch Response

Keys vary volume based on touch force for expressive playing.

Backlit Liquid Crystal Display

Provides clear visibility of notes, chords, and settings, even in darkness.

16-Note Polyphonic Sound

Allows playing up to 16 notes simultaneously for complex music creation.

100 Tones and 100 Auto-Rhythms

Offers diverse instrument sounds and rhythmic patterns for musical accompaniment.

Transpose and MIDI Capabilities

Features for changing key and connecting to other MIDI devices.

Additional Keyboard Functions

Tempo, Tune, and Rhythm Controls

Controls for adjusting tempo, pitch, and inserting rhythmic variations.

Accompaniment and Chord Book

Features for auto accompaniment patterns and a reference for chord fingerings.

Power Options and Speaker System

Details on powering the keyboard and its built-in speakers.

Preparation and Connections

Connecting Power Sources

Instructions for connecting AC adapter and using batteries for power.

Using Batteries

Details on installing and handling D-type batteries for keyboard operation.

Power and Audio Connections

Using AC Power

Guide for powering the keyboard using a 9-volt AC adapter and Adaptaplug.

Connecting Headphones and Listening Safely

How to connect headphones and guidelines for safe listening volume.

Audio Output and Accessories

Connecting an External Amplifier

Steps to connect the keyboard to an external amplifier for louder sound.

Using the Music Stand

Instructions for attaching and using the included music stand for sheet music.

Basic Operation

Keyboard Power and Volume Control

How to turn on/off the keyboard and adjust the main volume.

Cancelling Auto Power Off

Method to disable the automatic power-off feature.

Playing Prerecorded Tunes

Selecting and Playing Tunes

Guide to selecting, playing, and navigating prerecorded tunes on the keyboard.

Tune Display Information

Explains the various indicators shown on the display during tune playback.

Controlling Prerecorded Tune Playback

Tempo and Volume Adjustment

How to change tempo and volume for prerecorded tunes.

Navigating and Stopping Tunes

Using rewind, fast-forward, and stop functions for tune playback.

Interactive Playback and Tones

Playing Along with Prerecorded Tunes

Instructions on playing the keyboard while a prerecorded tune plays.

Applause Control and Consecutive Playback

Managing applause sound and playing all prerecorded tunes sequentially.

Using Preset Tones

How to select and use the 100 different instrument sounds available on the keyboard.

Selecting and Utilizing Preset Tones

Selecting Individual Preset Tones

Step-by-step guide to choosing and playing specific instrument sounds.

Keyboard Split Tones Feature

How to play two different sounds simultaneously on separate halves of the keyboard.

Sound and Rhythm Features

Percussion Sounds and Layered Tones

Explains 39 percussion sounds and 10 layered tones for diverse musical expression.

Using Preset Auto-Rhythms

Guide to selecting and playing 100 different auto-rhythm patterns for backing music.

Managing Auto-Rhythms

Selecting and Playing Auto-Rhythms

How to choose and activate the 100 available auto-rhythm patterns.

Tempo and Synchronization

Adjusting rhythm tempo and synchronizing rhythm start with playing.

Advanced Rhythm and Accompaniment

Synchronizing and Filling In Rhythms

Using SYNCHRO for beat sync and FILL-IN for rhythmic variations.

Using Auto Accompaniment

How to use accompaniment keys for chord-based backing music.

Accompaniment Controls and Chord Methods

Adjusting Accompaniment Volume

How to set the volume level for the auto-accompaniment feature.

Concert Chord Method

Explains how to play chords using the Concert Chord accompaniment style.

Concert Chord Auto Accompaniment

Starting and Playing with Concert Chord

Steps to initiate and play along with the Concert Chord accompaniment.

Standard Fingering Accompaniment

Standard Fingering Chord Charts

Visual charts showing left-hand fingerings for various chords.

Using Standard Fingering and Chord Book

Standard Fingering Steps

Step-by-step instructions for using the Standard Fingering accompaniment.

Using the Chord Book Feature

Guide on how to access and use the keyboard's chord book for learning chords.

Chord Book Functionality

Displaying and Sounding Chords

How to display chord information and hear them played.

Special Features: Key and Tuning

Changing Musical Keys (Transpose)

How to transpose the keyboard to different musical keys.

Tuning the Keyboard

Instructions for adjusting the keyboard's pitch to match other instruments.

Performance and Control Features

Using Touch Response

How to use touch response to adjust musical tone volume based on key pressure.

Using a Sustain Pedal

Guide for connecting and using an optional sustain pedal.

MIDI Connectivity and Basics

Introduction to MIDI

Explains what MIDI is and its applications for electronic musical instruments.

Making MIDI Connections

Steps for connecting the keyboard to other MIDI-equipped devices.

Understanding MIDI Data

MIDI Data Transmission and Reception

Details on sending and receiving MIDI data like notes, tones, and controls.

Types of MIDI Data

Explanation of Note On/Off, Program Change, Pitch Bend, and Control Change messages.

Configuring MIDI Settings

MIDI Data Control Numbers

Lists control numbers for modulation, volume, pan, and sustain.

Changing MIDI Channel and Tone Map

How to adjust MIDI channel and tone map settings for compatibility.

MIDI Implementation Chart Details

Understanding MIDI Chart Notes

Explains the meaning of O, X, and notes within the MIDI Implementation Chart.

Key MIDI Data Parameters

Details on Basic Channel, Mode, Note Number, Velocity, Pitch Bender, and Control Change.

Troubleshooting Common Issues

No Sound or Incorrect Sound

Solutions for problems like no sound, low volume, or headphone interference.

MIDI and Connection Problems

Remedies for issues with MIDI data, external amplifiers, tuning, and connections.

Troubleshooting Advanced Issues

MIDI THRU Function Issues

How to resolve problems where MIDI data does not sound correct due to MIDI THRU.

Standard Fingering Chord Reference

Chord Charts for Accompaniment

Visual charts showing left-hand fingerings for various chords.

Additional Fingering Chord Charts

Augmented, Suspended, and Other Chords

Provides fingerings for less common chord types like augmented and suspended.

Note and Tone Reference Tables

Note Table for Keyboard Play

Details on note ranges, polyphony, and MIDI data mapping for various tones.

MIDI Implementation Chart

Function Transmitted and Recognized

A detailed chart showing MIDI functions the keyboard supports.

MIDI Mode Descriptions

Understanding MIDI Modes (1-4)

Explains the different MIDI modes like OMNI ON/OFF and POLY/MONO.

Care and Maintenance Guidelines

General Care Instructions

Advice on keeping the keyboard dry, clean, and protected from damage.

Battery and Cleaning Precautions

Cautions regarding battery handling, cleaning agents, and modifications.

Technical Specifications

Keyboard and Audio Specifications

Details on keys, polyphony, speakers, terminals, and power supply.

MIDI and Physical Specifications

Information on MIDI capabilities, dimensions, weight, and included accessories.

Warranty Information

Limited One-Year Warranty Details

Outlines the terms, conditions, and exclusions of the product warranty.

Optimus MD-1150 Specifications

General IconGeneral
BrandOptimus
ModelMD-1150
CategoryElectronic Keyboard
LanguageEnglish

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