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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Pyramid Car Audio PSV-300, 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 Pyramid Car Audio PSV-300 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 Pyramid Car Audio PSV-300. 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 Pyramid Car Audio PSV-300 should contain:
- informations concerning technical data of Pyramid Car Audio PSV-300
- name of the manufacturer and a year of construction of the Pyramid Car Audio PSV-300 item
- rules of operation, control and maintenance of the Pyramid Car Audio PSV-300 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 Pyramid Car Audio PSV-300 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 Pyramid Car Audio PSV-300, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Pyramid Car Audio 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 Pyramid Car Audio PSV-300.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Pyramid Car Audio PSV-300 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
www .p yramidcaraudio .com ® OWNER'S MANUAL Model: PSV-300 30-AMP SWITCHING DC POWER SUPPL Y[...]
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Page 2
FEA TURES Y our PYRAMID Hea vy-Duty 30-Amp Switching DC P ow er Supply is designed to use A C power-to-po wer equipment that requires 12V DC automotive po wer . The power supply con v er ts standard 120V A C household power to 13.8V DC power and can supply up to 30 amps of contin uous power . Note: Y our vehicle's electrical system provides 13[...]
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Page 3
IMPORT ANT SAFETY INSTRUCTIONS D ANGER: T O REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, CAREFULL Y FOLLO W THESE INSTR UCTIONS. W ARNING: This unit should not be directly connected to a batter y f or charging or f or batter y bac k-up. Battery charging and batter y bac k-up may be undertaken only when the batter y is connected through suitab le e xt[...]
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Page 4
Caution: T o reduce the risk of damage: • Do not e xpose the power supply to rain or e xcessive moisture. • Do not operate the pow er supply if it has been dropped or damaged in any wa y . T ake it to a qualified service technician for repair . • Slots and openings on the back and bottom of the po wer supply's cabinet are f or ventilatio[...]
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Page 5
CONNECTIONS Caution : Make all other connections before you connect the power supply standard AC power . 1. T urn off the device requiring power . 2. Set the power supply's PO WER switch to OFF . 3. T urn the sleev es of the red and blac k binding output posts counterclockwise to e xpose the wire hole. 4. Inser t the de vice's positive wi[...]
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Page 6
OPERA TION T o use the power supply after y ou connect the de vice to it, set POWER to turn it on with the red led light illuminated. If the power supply's PO WER switch does not light, check all connections and confirm the wall AC outlet has po wer . If the outlet has power , set POWER to OFF , reduce the load (by using a de vice that does no[...]
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Page 7
SPECIFICA TIONS I nput V oltage .......................................................................110 to 120V AC Input F requency ................................................ .................................60 Hz Output V oltage .............................................................13.8V DC ±0.5 V olts Output Current .............[...]