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The EM-305/303 is a synthesizer keyboard that lets you enjoy playing ensembles with very little effort. To help you get the most out of your keyboard, and enjoy years of trouble-free service, please read your manual thoroughly. Main Features 1. Lots of tones available for play The EM-305/303 has 128 tones covering a wide range of instruments, including piano, violin, and trumpet. It's easy to select these tones, making it a snap to play a rich array of instrumental sounds. There are also many drum tones available for rhythmic expression. 2. Sophisticated ensembles can be played Whether it be rock, bossa nova, samba, or whatever, the built-in Arranger lets you play music in a wide range of styles. Just select the music style you want, and the synthesizer automatically plays a full accompaniment. 3. High-quality stereo sound with just the synthesizer The EM-305/303's built-in amp and speakers produce high-quality sound — without having to hook up a keyboard amp or other external device. Copyright © 1993 by ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the permission of ROLAND CORPORATION. Important Notes When using an AC adaptor, be sure that it is one supplied by the manufacturer. Use of any other power adaptor could result in damage, malfunction, or electric shock. (Power Supply) •When making any connections with other devices, always turn off the power to all equipment first; this will ....................■ ""-'■'help'prevenrdamage or malfunction.......................— — — •Do not use this unit on the same power circuit with any device that will generate line noise, such as a motor or variable lighting system. •The power supply required for this unit is shown on its nameplate. Ensure that the line voltage of your installation meets this requirement. •Avoid damaging the power cord; do not step on it, place heavy objects on it etc. •When disconnecting the AC adaptor from the outlet, grasp the plug itself; never pull on the cord. •If the unit is to remain unused for a long period of time, unplug the power cord. •The use of an AC adaptor is recommended as the unit's power consumption is relatively high. However, when using batteries, please use the alkaline type. •When replacing batteries, be sure to follow the instructions in "Changing Batteries" (see page 6). (Placement) •Do not subject the unit to temperature extremes (eg. direct sunlight in an enclosed vehicle). Avoid using or storing the unit in dusty or humid areas or areas that are subject to high vibration levels. •Using the unit near power amplifiers (or other equipment containing large transformers) may induce hum. •This unit may interfere with radio and television reception. Do not use this unit in the vicinity of such receivers. •Do not expose this unit to temperature extremes (eg. direct sunlight in an enclosed vehicle can deform or discolor the unit) or install it near devices that radiate heat. (Maintenance) •For everyday cleaning wipe the unit with a soft, dry cloth (or one that has been slightly dampened with water). To remove stubborn dirt, use a mild neutral detergent. Afterwards, be sure to wipe the unit thoroughly with a soft, dry cloth. •Never use benzene, thinners, alcohol or solvents of any kind, to avoid the risk of discoloration and/or deformation. (Changing Batteries) •Avoid using new batteries together with old ones. Also avoid mixing different types of batteries (eg. regular carbon and alkaline batteries). •When replacing batteries, be sure to maintain correct polarity. •Remove the batteries whenever the unit is not going to be used for an extended period of time. (Additional Precautions) •Protect the unit from strong impact. •Do not allow objects or liquids of any kind to penetrate the unit. In the event of such an occurrence, discontinue use immediately. Contact qualified service personnel as soon as possible. • Never strike or apply strong pressure to the display. •Should a malfunction occur (or if you suspect there is a problem) discontinue use immediately. Contact qualified service personnel as soon as possible. •To prevent the risk of electric shock, do not open the unit or its AC adaptor. 2 Contents Before You Begin....................................................................................................................................1 Main Features.........................................................................................................................................1 Important Notes......................................................................................................................................2 Part Names and Description..................................................................................................................4 Making the Connections...............................................................................6 Plugging in the AC Adaptor.............