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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Sennheiser HEV70, 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 Sennheiser HEV70 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 Sennheiser HEV70. 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 Sennheiser HEV70 should contain: 
							 - informations concerning technical data of Sennheiser HEV70 
							 - name of the manufacturer and a year of construction of the Sennheiser HEV70 item 
							 - rules of operation, control and maintenance of the Sennheiser HEV70 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 Sennheiser HEV70 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 Sennheiser HEV70, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Sennheiser 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 Sennheiser HEV70.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Sennheiser HEV70 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 1HEV 70 HIGH VOLTAGE ON PEAK M I M A X N L R HEV 70 GEBRAUCHSANLEITUNG INSTRUCTIONS FOR USE NOTICE D‘EMPLOI ISTRUZIONI PER L‘USO INSTRUCCIONES PARA EL USO GEBRUIKSAANWIJZING[...] 
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                            Page 22 10-20.000 Hz < 0,01 % 750 g HE 60 앸 HEV 70 Chinch ≥ 90 dB L I N E R L B Y P A S S O U T H E V 7 0 L R N U R V O N A U T H O R I S I E R T E M F A C H P E R S O N A L Z U Ö F F N E N ! V O R S I C H T H O C H S P A N N U N G ! T O B E O P E N E D B Y A U T H O R I Z E D P E R S O N S O N L Y ! D A N G E R , H I G H V O L T A G E I N S I D [...] 
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                            Page 33  Line-Ein- und Ausgänge ("Bypass"), intern durchgeschleift. Vergoldete  Cinchbuchsen. Kennzeichnung L (links) und R (rechts) beachten. Verbinden Sie einen Line-Ausgang Ihrer HIFi-Komponente mit dem Line- Eingang des Verstärkers HEV 70. Geräte, die bislang am Line-Ausgang Ihrer HiFi-Komponente angeschlossen waren, werden nunmehr[...] 
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                            Page 4HEV 70 HIGH VOLTAGE ON PEAK M I M A X N L R HEV 70 GEBRAUCHSANLEITUNG INSTRUCTIONS FOR USE NOTICE D‘EMPLOI ISTRUZIONI PER L‘USO INSTRUCCIONES PARA EL USO GEBRUIKSAANWIJZING[...] 
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                            Page 54 10-20.000 Hz < 0,01 % 750 g HE 60 앸 HEV 70 Chinch ≥ 90 dB L I N E R L B Y P A S S O U T H E V 7 0 L R N U R V O N A U T H O R I S I E R T E M F A C H P E R S O N A L Z U Ö F F N E N ! V O R S I C H T H O C H S P A N N U N G ! T O B E O P E N E D B Y A U T H O R I Z E D P E R S O N S O N L Y ! D A N G E R , H I G H V O L T A G E I N S I D [...] 
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                            Page 65  Line inputs and outputs („Bypass“), internally looped through. Gold-  plated Cinch sockets. Pay attention to the markings L (left) and R (right). Connect one line output of your hifi component with the line input of the amplifier HEV 70. Devices which until now were connected to the line output of your hifi component are now connected [...] 
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                            Page 7HEV 70 HIGH VOLTAGE ON PEAK M I M A X N L R HEV 70 GEBRAUCHSANLEITUNG INSTRUCTIONS FOR USE NOTICE D‘EMPLOI ISTRUZIONI PER L‘USO INSTRUCCIONES PARA EL USO GEBRUIKSAANWIJZING[...] 
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                            Page 86 10-20.000 Hz < 0,01 % 750 g HE 60 앸 HEV 70 Chinch ≥ 90 dB L I N E R L B Y P A S S O U T H E V 7 0 L R N U R V O N A U T H O R I S I E R T E M F A C H P E R S O N A L Z U Ö F F N E N ! V O R S I C H T H O C H S P A N N U N G ! T O B E O P E N E D B Y A U T H O R I Z E D P E R S O N S O N L Y ! D A N G E R , H I G H V O L T A G E I N S I D [...] 
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                            Page 97  Entrées et sorties Line („Bypass“), bouclage interne. Douilles Cinch plaquées  d’or. Attention aux marquages L (gauche) et R (droite). Raccordez une sortie Line de votre appareil hifi avec l’entrée de l’amplificateur HEV 70. Des appareils ayant été raccordés jusqu’à maintenant à la sortie Line de votre appareil hifi son[...] 
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                            Page 10HEV 70 HIGH VOLTAGE ON PEAK M I M A X N L R HEV 70 GEBRAUCHSANLEITUNG INSTRUCTIONS FOR USE NOTICE D‘EMPLOI ISTRUZIONI PER L‘USO INSTRUCCIONES PARA EL USO GEBRUIKSAANWIJZING[...] 
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                            Page 1110 10-20.000 Hz < 0,01 % 750 g HE 60 앸 HEV 70 Chinch ≥ 90 dB L I N E R L B Y P A S S O U T H E V 7 0 L R N U R V O N A U T H O R I S I E R T E M F A C H P E R S O N A L Z U Ö F F N E N ! V O R S I C H T H O C H S P A N N U N G ! T O B E O P E N E D B Y A U T H O R I Z E D P E R S O N S O N L Y ! D A N G E R , H I G H V O L T A G E I N S I D[...] 
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                            Page 1211  Entradas y salidas de línea („bypass“), interconectadas internamente. Hembrillas de  enchufe doradas. Tener en cuenta las marcas L (para izquierda) y R (para derecha). Conecte una salida de línea de su componente de alta fidelidad con una entrada de línea del amplificador HEV 70. Los aparatos que estaban conectados hasta entonces a[...] 
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                            Page 13HEV 70 HIGH VOLTAGE ON PEAK M I M A X N L R HEV 70 GEBRAUCHSANLEITUNG INSTRUCTIONS FOR USE NOTICE D‘EMPLOI ISTRUZIONI PER L‘USO INSTRUCCIONES PARA EL USO GEBRUIKSAANWIJZING[...] 
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                            Page 148 10-20.000 Hz < 0,01 % 750 g HE 60 앸 HEV 70 Chinch ≥ 90 dB L I N E R L B Y P A S S O U T H E V 7 0 L R N U R V O N A U T H O R I S I E R T E M F A C H P E R S O N A L Z U Ö F F N E N ! V O R S I C H T H O C H S P A N N U N G ! T O B E O P E N E D B Y A U T H O R I Z E D P E R S O N S O N L Y ! D A N G E R , H I G H V O L T A G E I N S I D [...] 
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                            Page 159  Entrate e uscite line („by-pass“), a circuito interno. Prese chinch dorate.  Osservare il contrassegno L (a sinistra) e R (a destra). Collegare una uscita line del Vostro componente HiFi con l’entrata line nell’amplificatore HEV 70. Gli apparecchi che erano finora collegati all’uscita line del Vostro componente HiFi vengono ora c[...] 
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                            Page 16HEV 70 HIGH VOLTAGE ON PEAK M I M A X N L R HEV 70 GEBRAUCHSANLEITUNG INSTRUCTIONS FOR USE NOTICE D‘EMPLOI ISTRUZIONI PER L‘USO INSTRUCCIONES PARA EL USO GEBRUIKSAANWIJZING[...] 
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                            Page 1712 10-20.000 Hz < 0,01 % 750 g HE 60 앸 HEV 70 Chinch ≥ 90 dB L I N E R L B Y P A S S O U T H E V 7 0 L R N U R V O N A U T H O R I S I E R T E M F A C H P E R S O N A L Z U Ö F F N E N ! V O R S I C H T H O C H S P A N N U N G ! T O B E O P E N E D B Y A U T H O R I Z E D P E R S O N S O N L Y ! D A N G E R , H I G H V O L T A G E I N S I D[...] 
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                            Page 1813  Line-in- en uitgangen („Bypass“), met interne lus. Vergulde cinchbussen. Op  markeringen L (links) en R (rechts) letten. Verbindt een Line-uitgang van uw HiFi-component met de Line-uitgang van de versterker HEV 70. Apparaten die tot nu toe aangesloten waren aan de Line-uitgang van uw HiFi-component worden nu met de uitgang van de HEV [...] 
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                            Page 19Sennheiser elektronic GmbH & Co. KG Telefon: 05130/600-0 D-30900 Wedemark Telefax: 05130/6312 Printed in Germany Publ. 9/96 51815 / A02 Füße feets pieds[...] 

