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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Roland DS-50A, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Roland DS-50A one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Roland DS-50A. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Roland DS-50A should contain:
- informations concerning technical data of Roland DS-50A
- name of the manufacturer and a year of construction of the Roland DS-50A item
- rules of operation, control and maintenance of the Roland DS-50A item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Roland DS-50A alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Roland DS-50A, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Roland service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Roland DS-50A.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Roland DS-50A item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
Thank you for purchasing the Roland Bi-Amp Monitor DS-50A. Before using this unit, carefully read the sections entitled: “IMPORTANT SAFETY INSTRUCTIONS” (p. 2), “USING THE UNIT SAFELY” (p. 3), and “IMPORTANT NOTES” (p. 5). These sections provide important information concerning the proper operation of the unit. Additionally, in order to[...]
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Page 2
2 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 al[...]
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Page 3
3 • Before using this unit, make sure to read the instructions below, and the Owner’s Manual. .......................................................................................................... • Do not open or perform any internal modifications on the unit. ..............................................................................[...]
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4 USING THE UNIT SAFELY ...................................................................... 3 IMPORTANT NOTES ............................................................................... 5 Names of Things and What They Do .................................................... 6 Connection Examples ...............................................[...]
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Page 5
5 IMPORTANT NOTES 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). 307 • Before connecting this unit to other devices, turn off the power to all units. This will help prevent malfunctions and/or damage to speakers or other dev[...]
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6 Names of Things and What They Do HF Driver * Do not touch the diaphragm. LF Driver * Do not touch the speaker cone. Bass-reflex Ducts These are conduits for rich, bass-range repr oduction. Power Indicator Lights when power is on. Digital In Indicator This lights up when output is received fr om a connected digital device or during standby. Connec[...]
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7 Names of Things and What They Do 2 Digital Input Coaxial Input Connector (Digital Input) This is the digital input connector for coaxial cable. NOTE It cannot be used for input of analog audio signals (no sound is produced). Optical Input Connector (Digital Input) This is the digital input connector for optic-fiber cable. Use commercially availab[...]
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Page 8
8 Connection Examples Important Notes on Placement ● During setup and transport, be careful not to damage the vibrating portions (the speaker cone and diaphragm). ● Be sure to place the monitor so that the heat sink on the rear panel is not obstructed. Also, make sure the monitor does not touch any curtains or other fabrics. ● The heat sink p[...]
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9 Connection Examples Using As a Reference Monitor for the V-Studio or V-Mixer NOTE • Please be aware that not all VS/VM series units are capable of providing speaker modeling. Before making your purchase, you should confirm that the unit you are considering does indeed provide the features you desire. • Speaker Modeling is not possible using j[...]
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10 Reference There ’ s No Sound ● Make sure the Input Level control has not been turned fully counterclockwise. ● Make sure the Input Select switch has been set to the connector where the input signal is connected (Digital Input or Analog Input). ● Make sure the Digital Input select switch has been set to the connector where the input signa[...]
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Reference 11 Frequency Response -10 -20 10 20 0 -30 20 50 100 200 500 1k 2k 5k 10k 20k (dB) (Hz) Frequency Response LF: max flat HF: max flat LF: min HF: min 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 t[...]
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Page 12
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 1, 2000 (Roland) 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. R. Coronel Oc[...]