Yamaha F-20B manual

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A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Yamaha F-20B, 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 Yamaha F-20B 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 Yamaha F-20B. 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 Yamaha F-20B should contain:
- informations concerning technical data of Yamaha F-20B
- name of the manufacturer and a year of construction of the Yamaha F-20B item
- rules of operation, control and maintenance of the Yamaha F-20B 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 Yamaha F-20B 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 Yamaha F-20B, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Yamaha 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 Yamaha F-20B.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Yamaha F-20B 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

  • Page 1

    Thank you for purchasing a Yamaha F-20B Bass Amplifier. To get the best results and longest life out of your F-20B, we recommend that you carefully read this manual, and keep it in a safe place for future reference. ● To avoid possible damage do not expose the unit to: • direct sunlight • very high or low temperature/humidity • sand or exce[...]

  • Page 2

    WARNING- When using any electrical or electronic product, basic precautions should always be followed. These precautions include, but are not limited to, the following: 1 . Read all Safety Instructions, Installation Instructions, Special Mes- sage Section items, and any Assembly Instructions found in this manual BEFORE making any connections, inclu[...]

  • Page 3

    ● Pour éviter toutes possibilités de dommage, ne soumettez pas l’appareil aux conditions suivantes : • en plein soleil • température/humidité extrêmement élevée ou basse • sable ou poussière excessive * La temp é rature peut s ’é lever excessivement à l ’ int é rieur d ’ un v é hicule ferm é : Ne laissez pas le F-20B d[...]

  • Page 4

    ● Um mögliche Beschädigungen zu verhüten, schützen Sie das Gerät bitte vor: • direkter Sonnenbestrahlung • sehr hoher bzw. niedriger Temperatur/Luftfeuchtigkeit • Sand und extremer Staubeinwirkung * Insbesondere in einem geschlossenen Fahrzeug kann die Temperatur extrem ansteigen. Lassen Sie den F-20B an einem sonnigen Tag nicht in Ihr[...]

  • Page 5

    ● Para evitar posibles daños, no exponga el aparato a: • la luz directa del sol • temperaturas o humedad muy altas o bajas • la arena o al polvo excesivo * Las temperaturas, especialmente dentro de los veh í culos, pueden subir excesivamente; no deje el F-20B dentro de un veh í culo estacionado bajo el sol. ● Antes de conectar o descon[...]

  • Page 6

    ● Per evitare possibili danni, non esporre l’unità a: • luce solare diretta • temperature e umidità molto alte o molto basse • sabbia o polvere eccessive * alle temperature altissime che si generano in una vettura parcheggiata all ’ aperto, particolarmente d ’ estate: non lasciare il F- 20B in automobile! ● Prima di collegare o sc[...]

  • Page 7

    ● Om mogelijke schade te voorkomen mag u het toestel niet blootstellen aan: • direct zonlicht • zeer hoge of lage temperaturen/vochtigheid • zand of te veel stof * In het bijzonder binnenin een voertuig kan de temperatuur te hoog oplopen - Laat de F-20B niet achter in uw auto op een zonnige dag! ● Voor u de kabels aansluit/losmaakt of het[...]