OWNER'S MANUAL Thank you, and congratulations on your choice of the Roland DB-700 bass amplifier. 201b Before using this unit, carefully read the sections entitled: "IMPORTANT SAFETY INSTRUCTIONS" (page 2), "USING THE UNIT SAFELY" (page 3), and "IMPORTANT NOTES" (page 5). These sections provide important information concerning the proper operation of the unit. Additionally, in order to feel assured that you have gained a good grasp of every feature provided by your new unit, OWNER'S MANUAL should be read in its entirety. The manual should be saved and kept on hand as a convenient reference. Contents IMPORTANT SAFETY INSTRUCTIONS............. 2 USING THE UNIT SAFELY ................................. 3 IMPORTANT NOTES .......................................... 5 Introduction ........................................................ 6 Main Features..................................................................................... 6 Before You Use the DB-700 .............................................................. 6 Button Names and Functions ........................... 7 Front panel.......................................................................................... 7 Rear panel ........................................................................................... 8 Connect your DB-700....................................... 10 Turn the power on and off ............................................................. 10 The Memory Function...................................... 11 Calling Up Memory ........................................................................ 11 Changing the Settings for Memory A and Memory B (Edit)............... 11 Storing the Panel Settings in Memory A and Memory B (Write) ........ 11 How to handle the Casters .............................. 12 Appendixes....................................................... 13 Block diagram .................................................................................. 13 Factory-default Settings.................................................................. 13 Returning to the Factory-default Settings.................................... 13 Sample Settings................................................................................ 14 Specifications.................................................................................... 16 202 Copyright © 2000 ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION. IMPORTANT SAFETY INSTRUCTIONS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS. IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS WARNING - When using electric products, basic precautions should always be followed, including the following: 1. Read all the instructions before using the product. 2. Do not use this product near water -- for example, near a bathtub, washbowl, kitchen sink, in a wet basement, or near a swimming pool, or the like. 3. This product should be used only with a cart or stand that is recommended by the manufacturer. 4. This product, either alone or in combination with an amplifier and headphones or speakers, may be capable of producing sound levels that could cause permanent hearing loss. Do not operate for a long period of time at a high volume level or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears, you should consult an audiologist. 5. The product should be located so that its location or position does not interfere with its proper ventilation. 6. The product should be located away from heat sources such as radiators, heat registers, or other products that produce heat. 7. The product should be connected to a power supply only of the type described in the operating instructions or as marked 8. The power-supply cord of the product should be unplugged from the outlet when left unused for a long period of time. 9. Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. 10.The product should be serviced by qualified service personnel when: A. The power-supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the product; or C. The product has been exposed to rain; or D. The product does not appear to operate normally or exhibits a marked change in performance; or E. The product has been dropped, or the enclosure damaged. 11.Do not attempt to service the product beyond that described in the user-maintenance instructions. All other servicing should be referred to qualified service personnel. For the USA This product must be grounded. If it should malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. This product is equipped with a cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances. DANGER: Improper connection of the equipment-grounding conductor can result in a risk of electric shock. Check with a qualified electrician or serviceman if you are in doubt as to whether the product is properly grounded. Do not modify the plug provided with the product -- if it will not fit the outlet, have a proper outlet installed by a qualified electrician. For the U.K. THIS APPARATUS MUST BE EARTHED WARNING: IMPORTANT: THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE. GREEN-AND-YELLOW: EARTH, BLUE: NEUTRAL, BROWN: LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured GREEN-AND-YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or coloured GREEN or GREEN-AND-YELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. GROUNDING INSTRUCTIONS The product which is equipped with a THREE WIRE GROUNDING TYPE LINE PLUG must be grounded. 2 USING THE UNIT SAFELY USING THE UNIT SAFELY Used for instructions intended to alert the user to the risk of death or severe injury should the unit be used improperly. Used for instructions intended to alert the user to the risk of injury or material damage should the unit be used improperly. * Material damage refers other adverse effects respect to the home furnishings, as well animals or pets. to damage or caused with and all its to domestic The symbol alerts the user to important instructions or warnings.The specific meaning of the symbol is determined by the design contained within the triangle. In the case of the symbol at left, it is used for general cautions, warnings, or alerts to danger. The symbol alerts the user to items that must never be carried out (are forbidden). The specific thing that must not be done is indicated by the design contained within the circle. In the case of the symbol at left, it means that the unit must never be disassembled. The symbol alerts the user to things that must be carried out. The specific thing that must be done is indicated by the design contained within the circle. In the case of the symbol at left, it means that the powercord plug must be unplugged from the outlet. 001 008a · Before using this unit, make sure to read the instructions below, and the Owner's Manual. .......................................................................................................... 002a · The unit should be connected to a power supply only of the type described in the operating instructions, or as marked on the unit. .......................................................................................................... 009 · Do not open or perform any internal modifications on the unit. .......................................................................................................... 003 · Do not attempt to repair the unit, or replace parts within it (except when this manual provides specific instructions directing you to do so). Refer all servicing to your retailer, the nearest Roland Service Center, or an authorized Roland distributor, as listed on the "Information" page. .......................................................................................................... 004 · Do not excessively twist or bend the power cord, nor place heavy objects on it. Doing so can damage the cord, producing severed elements and short circuits. Damaged cords are fire and shock hazards! .......................................................................................................... 010 · Never use or store the unit in places that are: · Subject to temperature extremes (e.g., direct sunlight in an enclosed vehicle, near a heating duct, on top of heat-generating equipment); or are · Damp (e.g., baths, washrooms, on wet floors); or are · Humid; or are · Exposed to rain; or are · Dusty; or are · Subject to high levels of vibration. .......................................................................................................... 007 · This unit, either alone or in combination with an amplifier and headphones or speakers, may be capable of producing sound levels that could cause permanent hearing loss. Do not operate for a long period of time at a high volume level, or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears, you should immediately stop using the unit, and consult an audiologist. .......................................................................................................... 011 · Do not allow any objects (e.g., flammable material, coins, pins); or liquids of any kind (water, soft drinks, etc.) to penetrate the unit. .......................................................................................................... 013 · Make sure you always have the unit placed so it is level and sure to remain stable. Never place it on stands that could wobble, or on inclined surfaces. .......................................................................................................... · In households with small children, an adult should provide supervision until the child is capable of following all the rules essential for the safe operation of the unit. .......................................................................................................... 3 USING THE UNIT SAFELY 014 101a · Protect the unit from strong impact. (Do not drop it!) .......................................................................................................... 015 · The unit should be located so that its location or position does not interfere with its proper ventilation. .......................................................................................................... 102a · Do not force the unit's power-supply cord to share an outlet with an unreasonable number of other devices. Be especially careful when using extension cords--the total power used by all devices you have connected to the extension cord's outlet must never exceed the power rating (watts/amperes) for the extension cord. Excessive loads can cause the insulation on the cord to heat up and eventually melt through. .......................................................................................................... 016 · Always grasp only the plug on the power-supply cord when plugging into, or unplugging from an outlet. .......................................................................................................... 104 · Try to prevent cords and cables from becoming entangled. Also, all cords and cables should be placed so they are out of the reach of children. .......................................................................................................... 105b · Before using the unit in a foreign country, consult with your re ...