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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Celestron 76, 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 Celestron 76 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 Celestron 76. 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 Celestron 76 should contain:
- informations concerning technical data of Celestron 76
- name of the manufacturer and a year of construction of the Celestron 76 item
- rules of operation, control and maintenance of the Celestron 76 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 Celestron 76 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 Celestron 76, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Celestron 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 Celestron 76.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Celestron 76 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
P P o o w w e e r r S S e e e e k k e e r r 7 7 6 6 I I N N S S T T R R U U C C T T I I O O N N M M A A N N U U A A L L #21044[...]
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Page 2
2 INTRODUCTIO N Congra tulati ons on your pur chase a nd welco me to the Celestron w orld of am ateur as tronom y . Som e of t he term s and parts described in these instructions m ay be new to y ou, so a few com m only u sed terms y ou’ll w an t to be fam iliar w ith are defined below . Altazim uth m ount - the sim plest type of m ount, w ith tw[...]
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Page 3
3 Q Q u u i i c c k k S S e e t t u u p p[...]
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Page 4
4 T T H H E E P P O O W W E E R R S S E E E E K K E E R R 7 7 6 6 R R e e f f l l e e c c t t o o r r The PowerSeek er is a Newton ian reflecting telescope that comes on an altazim uth m ount. This section instru cts you on the proper as sem bly and u se of y our PowerSeek er telescope, which is sh ipped in one box, containing all the parts you n e[...]
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Page 5
5 3. Your telescope also com es w ith a 3x Barlow lens w hich triples the m agn ify ing pow er of each ey epiece (see Magnifica tion section of the man ual). To use the barlow len s, insert the barlow lens directly into the focu ser. Then start by usin g the low pow er ey epiece such as the 20m m , and ins ert it directly in to the barlow lens. A A[...]
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Page 6
6 Magnific atio n thro ugh any tele scop e has it s limits. T hes e limits ar e de ter mined by the l aws of opt ics and the na ture o f the hu man eye. Mos t of y our vi ew ing w ill be don e in the rang e of 35x to 120x. High er pow ers are used m ain ly f or lunar and som etimes plan etary observin g w here y ou can g reatly enlarg e the im age [...]
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Page 7
7 2. Adjustments to the collim ation of the telescope can be m ade by turnin g the collim ation adjustment screws (5) located at the rear of th e optical tube. 3. If y our telescope is out of collim ation, the best way to re- collimate it is w ith a good collim ation tool. Celes tron offers a Newt onian Collim ation Tool (#94183) w ith detailed ins[...]
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Page 8
8 O O p p t t i i o o n n a a l l A A c c c c e e s s s s o o r r i i e e s s Celestron offers a f ull line of optional access ories for y our telescope. Please refer to th e Celestron Accessory Catalog (#93685) for a com plete des cription , or logon t o our w eb si te at www.ce le st ron .com . Eyepieces – An assortm ent of 1¼” eyepieces are[...]
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Page 9
CELESTRON TWO YEAR WARRANTY a. Celestron warran ts th is telescop e to be free from defects in materi als and workmansh ip for t wo ye ars. Celestron will repa ir or repl ace such product or part there of which, upo n inspe ction by Cel es tron, is found to be de fe ctive in m ater ials o r w or kmanship . A s a condition to the o blig ation of Cel[...]