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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of JVC KD-A815, 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 JVC KD-A815 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 JVC KD-A815. 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 JVC KD-A815 should contain:
- informations concerning technical data of JVC KD-A815
- name of the manufacturer and a year of construction of the JVC KD-A815 item
- rules of operation, control and maintenance of the JVC KD-A815 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 JVC KD-A815 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 JVC KD-A815, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the JVC 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 JVC KD-A815.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the JVC KD-A815 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
1 KD-A815/KD-R810 Installation/Connection Manual Manual de instalación/conexión Manuel d’installation/raccordement ENGLISH / ESPAÑOL / FRANÇAIS 0110DTSMDTJEIN EN, SP, FR © 2010 Victor Company of Japan, Limited GET0651-002A [J] • To prevent short circuits: – Disconnect the battery’s negative terminal and make all electrical connections [...]
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Page 2
2 PRECAUTIONS on power supply and speaker connections • DO NOT connect the speaker leads of the power cord to the car battery; otherwise, the unit will be seriously damaged. • BEFORE connecting the speaker leads of the power cord to the speakers, check the speaker wiring in your car. PRECAUTIONS sur l’alimentation et la connexion des enceinte[...]
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Page 3
3 * 1 Not supplied for this unit. * 2 Connect the power cord supplied for the component separately for power supply. * 3 This model is a component of SIRIUS satellite radio System. * 4 This model is a component of XM satellite radio System. * 5 To use these components, set the external input setting correctly (see page 33 of the INSTRUCTIONS). * 1 [...]
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Page 4
4 • The fuse blows. ] Are the red and black leads connected correctly? • Power cannot be turned on. ] Is the yellow lead connected? • No sound from the speakers. ] Is the speaker output lead short- circuited? • Sound is distorted. ] Is the speaker output lead grounded? ; Are the “–” terminals of L and R speakers grounded in common? ?[...]