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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Altec Lansing CF108-4TWG, 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 Altec Lansing CF108-4TWG 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 Altec Lansing CF108-4TWG. 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 Altec Lansing CF108-4TWG should contain:
- informations concerning technical data of Altec Lansing CF108-4TWG
- name of the manufacturer and a year of construction of the Altec Lansing CF108-4TWG item
- rules of operation, control and maintenance of the Altec Lansing CF108-4TWG 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 Altec Lansing CF108-4TWG 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 Altec Lansing CF108-4TWG, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Altec Lansing 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 Altec Lansing CF108-4TWG.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Altec Lansing CF108-4TWG 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
CF108-4T CF108-4TWG CF108-4T-71 CF108-4TWG-71 8” Ceiling Speakers SPECIFICA TION Frequency Response 82 – 17,000 Hz +/- 5dB Low frequency limit (-10 dB) 65 Hz Power Handling 8 W EIA, 32 W peak Sensitivity (SPL - 1 W 1 m) 98 dB Maximum Output (Maximum SPL) 113 dB Magnet Weight 0.63 lb (0.29 kg) Impedance Nominal - 8 Ohms Minimal - 8.7 Ohms Dime n[...]
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Page 2
ARCHITECTS & ENGINEERS SPECIFICA TION The loudspeaker shall be an Altec Lansing Professional CF108-4T / CF108-4TWG with an 8 inch (200 mm) full-range speaker with acoustically isolated free-edge HF cone and corrosion-resistant frame. The speaker shall have a power rating of 8 W EIA / 32 W peak. The frequency response shall be 82 to 17,000 Hz +/[...]
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Page 3
As we are continually striving to improve Altec Lansing products, specifications are subject to change without notice. 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz One Octave Polar Response Charts 6 dB/Division[...]
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Page 4
CF108-SS REV05 TRANSFORMER CHAR T WIRING DIAGRAM (CF108-4T/CF108-4TWG) CF108 VIOLET WHITE LEAD GRA Y LEAD COMMON 8 Ω BLUE GREEN YELLOW ORANGE RED BROWN COMMON + - WIRING DIAGRAM (CF108-4T 71/CF108-4TWG-71) YELLOW 0.5 dB 1.0 dB 8 Ω ORANGE RED BROWN COMMON BLACK/WHITE BLACK LEAD COMMON + - Utility 4 W Utility 8 W 25 V 70 V 100 V Tr a n sformer T [...]