Instruction/ maintenance manual of the product DB-700 Roland
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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).
2 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.
3 USING THE UNIT SAFELY USING THE UNIT SAFELY 001 • Before using this unit, make sure to read the instructions below, and the Owner’s Manual. .........................................................................................................
4 USING THE UNIT SAFELY 014 • Protect the unit from strong impact. (Do not drop it!) .......................................................................................................... 015 • Do not force the unit’s power-supply cord to share an outlet with an unreasonable number of other devices.
5 IMPORTANT NOTES In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on pages 2–4, please read and observe the following: Power Supply 301 • Do not use this unit on the same power circuit with any device that will generate line noise (such as an electric motor or variable lighting system).
6 Introduction Main Features - Thanks to FFP technology, this DSP (Digital Signal Processing) bass amplifier offers superior performance regardless of its compact and lightweight body. - Benefits of FFP Technology 1) FFP technology makes it possible to achieve dynamic, high-powered sound that surpasses the output spec.
7 Button Names and Functions Front panel fig. 1 (control panel) 1. Control Buttons You can store the settings of the controls in memory A or memory B. For more information, take a look at “The Memory Function” (p.
8 Button Names and Functions 6. D-Chorus Thanks to dynamic band-splitting processing according to input signals, you can perform with a chorus effect with no loss in bass-range response. INTENSITY Knob This adjusts the amount of chorus that’s applied.
9 Button Names and Functions 11. Foot Switch By connecting a foot switch such as the FS-5L (sold separately), you can control a variety of such as with your feet. TIP:A/B and RING:MANUAL Jack You can use a foot switch to switch between memory A and memory B or switch the Manual function on and off.
10 Connect your DB-700 Refer to the following diagram and connect the DB-700 to the external eqipment you are using. fig. 5 (connection with an external instrument) * To prevent malfunction and/or damage to speakers or other devices, always turn down the volume, and turn off the power on all devices before making any connections.
11 The Memory Function Calling Up Memory 1. Press the MEMORY A or MEMORY B button to choose the memory you want. For more on the factory-default settings for memory A and memory B, see “Factory-default Settings” (p. 13). You can also choose a memory using the foot switch.
12 How to handle the Casters Attaching and Removing the Casters You can attach or remove casters as shown in the following figure. Be sure to remove all casters when accidental movement may be dangerous such as when setting up the DB-700 on stage or when transporting it in a vehicle.
13 Appendixes Block diagram fig. 7 (block diagram of jack locations) Factory-default Settings Memory A: Slap Bass Typical slap sound used in studios. Adjust the COMPRESSION knob to your taste. fig. 8 (setting 1) Memory B: Rock Drive Heavy rock sound. The amount of distortion can be adjusted with the GAIN knob .
14 Appendixes Samle Settings In addition to the default settings, the following sample settings (which are geared toward specific styles of playing) are also provided. Once you call up the following sample settings, any settings you’ve stored at Memory A and B will be lost.
15 Appendixes Sample 2 Hold down the MEMORY B button while you switch on the power. Then, select either the MEMORY A button or the MEMORY B button . MEMORY A: Chorus Bass Transparent chorus sound suited for slapping or flat-picking. The modulation amount can be controlled with the D-CHORUS INTENSITY knob .
16 Appendixes Specifications Rated Power Output 250 W / 8 ohms Nominal Input Level (@1KHz) INPUT HIGH -30 dBm/1 M ohms INPUT LOW -20 dBm/300 k ohms (AMP TYPE: SOLID STATE) INSERT RETURN +4 dBm Nominal Output Level BALANCED DI +4 dBm INSERT SEND +4 dBm LINE OUT (XLR type) +4 dBm LINE OUT (PHONE type) +4 dBm *0 dBm=0.
17 Appendixes.
Information When you need repair service, call your nearest Roland Service Center or authorized Roland distributor in your country as shown below. As of June 11, 1999 ARGENTINA Instrumentos Musicales S.A. Florida 656 2nd Floor Office Number 206A Buenos Aires ARGENTINA, CP1005 TEL: (54-11) 4- 393-6057 BRAZIL Roland Brasil Ltda.
For the USA FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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An important point after buying a device Roland DB-700 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Roland DB-700 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Roland DB-700 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Roland DB-700 you will learn all the available features of the product, as well as information on its operation. The information that you get Roland DB-700 will certainly help you make a decision on the purchase.
If you already are a holder of Roland DB-700, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Roland DB-700.
However, one of the most important roles played by the user manual is to help in solving problems with Roland DB-700. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Roland DB-700 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
