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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of JBL Northridge E Series E150P, 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 JBL Northridge E Series E150P 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 JBL Northridge E Series E150P. 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 JBL Northridge E Series E150P should contain:
- informations concerning technical data of JBL Northridge E Series E150P
- name of the manufacturer and a year of construction of the JBL Northridge E Series E150P item
- rules of operation, control and maintenance of the JBL Northridge E Series E150P 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 JBL Northridge E Series E150P 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 JBL Northridge E Series E150P, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the JBL 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 JBL Northridge E Series E150P.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the JBL Northridge E Series E150P 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
English OWNER’S GUIDE ® E1 50P , E250P (230V) NORTHRIDGE ™ E SERIES[...]
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Page 2
English READ FIRST! Important Safety Precautions! 1. Read Instructions. All the safety and operating instructions should be read before the product is operated. 2. Retain Instructions. The safety and oper- ating instructions should be retained for future reference. 3. Heed Warnings. All warnings on the product and in the operating instructions shou[...]
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Page 3
English SPEAKER PLACEMENT • As a general rule, bass response increases as a sub- woofer is placed closer to a wall. Therefore, bass output is maximized when the sub- woofer is placed in a corner . • It is also recommended that the subwoofer be positioned along the same wall as the front loudspeakers. Low-frequency sounds are nor- mally omnidire[...]
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Page 4
English ANALOG RECEIVER/PROCESSOR – LINE LEVEL CONNECTIONS Use this installation method with an analog receiver/ processor that does not have digital processing or bass management, and is equipped with a full-range subwoofer out- put or a volume-controlled pre- amp (line-) level output: Use RCA-type patch cords to connect the line-level sub- woof[...]
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Page 5
English DIGIT AL RECEIVER/PROCESSOR – LFE CONNECTION Use this installation method for Dolby Digital, DTS ® or other digi- tal surround processors that have bass-management programming, or for analog receivers/processors that have a filtered subwoofer output: IMPORT ANT : Make sure that the LFE toggle switch on the sub- woofer is in the “LFE”[...]
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Page 6
English OPERA TION When the unit is plugged in and the power switch is on and no signal is received, the LEDs on the front of the unit will turn red. When a signal is present, the LEDs will turn green. Note: It will take several min- utes for the LEDs to turn from green to red after the input sig- nal to the subwoofer is removed. Due to JBL ’ s u[...]
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Page 7
English TROUBLESHOO TING If you used the high-level (speaker) inputs and there is no sound from any of the speakers: • Check that receiver/amplifier is on and a source is playing. • Check that powered subwoofer is plugged into an active electrical outlet and is switched on. • Check all wires and connec- tions between receiver/ amplifier and s[...]
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Page 8
English Declaration of Conf ormity We, Harman Consumer International 2, route de Tours 72500 Chateau-du-Loir France declare in own responsibility, that the products described in this owner’s manual are in compliance with technical stan- dards: EN 60065:1998 EN 55013:A14/1999 EN 55020/A14:1999 EN 61000-3-2/A14:1999 EN 61000-3-3/1.1995 Gary Mardell[...]