Casio CPS-300 - User Manual

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The Casio CPS-300 is an electronic musical instrument, specifically a digital piano, designed for a wide range of users from beginners to more experienced musicians. It features a 61-key keyboard with touch response, allowing for expressive playing dynamics from pianissimo to fortissimo.

Function Description:

The CPS-300 offers five built-in preset tones: Piano, Harpsichord, Vibraphone, Electric Piano, and Pipe Organ. These tones are generated using an advanced PCM sound source with 12-bit sampling technology, aiming for crystal clear and true-to-life sound. The Piano, Vibraphone, and Electric Piano tones specifically incorporate touch response, which controls both volume and timbre based on the initial touch pressure. The keyboard supports 16-note polyphonic performance, allowing multiple notes to sound simultaneously.

A notable feature is the Music Library, which contains 36 built-in demonstration tunes ranging from classical etudes to sonatas by composers like Beethoven, Bach, and Chopin. These tunes can be played individually or sequentially. During playback of Music Library tunes, the user can change the tone, though it will reset to the piano tone when a new tune starts. The Auto Power Off function is inoperative during demonstration tune playback.

The instrument also boasts MIDI (Musical Instrument Digital Interface) compatibility, allowing it to connect with other MIDI instruments, sound sources, and devices for synchronized performance. It includes MIDI IN and OUT terminals for receiving and sending MIDI messages. The MIDI Basic Channel can be set by holding down the PIANO tone selector while turning the power on and then pressing a specific key on the keyboard corresponding to the desired channel number (1-16). The default MIDI Basic Channel is 1.

Important Technical Specifications:

Model: CPS-300
Number of keys: 61 keys, initial touch
Polyphony: 16-note polyphonic
Preset tones: 5 (Piano, Harpsichord, Vibraphone, Elec Piano, Pipe Organ)
Demonstration tunes: 36
Tuning control: A4 = 442Hz +/- 30 cents, adjustable within +/- 30 cents from the standard pitch.
Built-in speakers: 12 cm diameter x 2 (output: 2W + 2W)
Auto power off function: Automatically cuts off power approximately 6 minutes after the last operation. Can be canceled by holding the HARPSICHORD tone selector while turning the power ON.
Power source: 3-way AC/DC power source.
- AC: 100, 117, 220 or 240V (+/-10V), 50/60 Hz, with optional AC adaptor AD-5.
- DC: 6 D size manganese dry batteries (standard battery life approximately 8 hours).
Power consumption: 7.7W
Dimensions: 938(W) x 320(D) x 92(H) mm (36 7/8(W) x 12 5/8(D) x 3 5/8(H) inches)
Weight: 6.7Kg (14.7 lbs) including batteries
Terminals:
- Line out (Output impedance: 3kΩ, Output voltage: 1V (RMS) MAX)
- Headphone jack
- Damper pedal jack (for optional sustain pedal SP-10/SP-2)
- AC adaptor jack (DC 9V)
- MIDI (IN/OUT)
Standard accessories: 6 "D" size batteries, Music Library Piano Scores, Dust cover, Score stand.

Usage Features:

The CPS-300 is designed for ease of use with clearly labeled tone selectors for quick sound changes. The volume control allows for adjustment of the overall output. The Music Library offers both a "DEMO start/reset" button to play all tunes sequentially and a "MUSIC select" button to choose specific tunes by pressing corresponding white keys on the keyboard. The tuning control on the rear panel allows for fine adjustment of the keyboard's overall pitch. For private practice, a headphone jack is available, which automatically mutes the built-in speakers when headphones are connected. The unit can be powered by either an AC adaptor or six D-size batteries, offering flexibility for both home and portable use.

Maintenance Features:

Power Management: An Auto Power Off function conserves battery life by automatically shutting down the unit after 6 minutes of inactivity. This function can be disabled for continuous use.
Battery Care: It is recommended to remove batteries from the compartment when the unit is not used for extended periods to prevent leakage and damage. Only genuine CASIO adaptors should be used to avoid damage.
Cleaning: The keyboard should be cleaned with a soft cloth dampened with a mild detergent solution and squeezed until almost dry. Harsh chemicals like lacquer thinner should be avoided.
Environmental Protection: The unit should be protected from heat, humidity, and direct sunlight. It should not be placed near heaters or in areas subject to high temperatures.
Physical Protection: Avoid severe impacts and dropping the unit. When transporting, the keyboard and buttons should be protected with a soft cloth.
Internal Components: Do not attempt to modify any part of the unit, as it contains sophisticated electronic parts. Any tampering can cause malfunction and serious damage.
Troubleshooting: A dedicated section in the manual provides guidance for common issues such as no sound, occasional interference, or no sound when connected to an external amplifier, along with suggested remedies. For persistent malfunctions, users are advised to contact the retailer or a dealer rather than attempting self-repair.