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The rules should oblige the seller to give the purchaser an operating instrucion of JBL PS120, 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 PS120 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 PS120. 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 PS120 should contain:
- informations concerning technical data of JBL PS120
- name of the manufacturer and a year of construction of the JBL PS120 item
- rules of operation, control and maintenance of the JBL PS120 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 PS120 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 PS120, 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 PS120.
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 PS120 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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PS PS SERIES POWERED SUBWOOFERS OWNER’S MANUAL PS 1 00 PS 1 20 PS60 PS manual[P].qXp2 7/27/98 3:24 PM Page 2[...]
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2 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE AMPLIFIER BACK. NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dange[...]
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3 INTRODUCTION Congratulations on choosing JBL loudspeakers. Their highly accurate, uncolored and balanced sound character will greatly increase your enjoyment of recorded music. We build JBL speakers with careful attention to detail, using only the highest quality materials. They will provide many years of excellent performance. Our PS Series riva[...]
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"Speaker Level Input (from amplifier)" - Use these inputs when connecting to the speaker out (speaker mains) of your receiver/T.V./source amplifier. Run speaker wires from the speaker output terminals (usually coded red and black) on the rear of your receiver/T.V./source amplifier to the red and black input terminals labeled "Speaker[...]
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5 Speaker Level Output (to external speakers) + R + R L + L + L R Crossover Frequency Level Min Max 50 200 (Hz) Polarity Reverse Normal Speaker Level Input (from amplifier) Line Input PS Subwoofer L R + - + - Receiver, TV, or Amplifie L R FIG. 1: Line Level Input Connectio RCA Phono Cables PS manual[P].qXp2 7/27/98 3:24 PM Page 10[...]
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6 Speaker Level Output (to external speakers) + R + R L + L + L R Crossover Frequency Level Min Max 50 200 (Hz) Polarity Reverse Normal Speaker Level Input (from amplifier) Line Input PS Subwoofer L R + - + - Receiver, TV, or Amplifie L R FIG. 2: Speaker Level Input Connecti Speaker Wire PS manual[P].qXp2 7/27/98 3:24 PM Page 11[...]
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your receiver/T.V. / source amplifier to produce the low bass while passing the unaltered signal source to the external speakers. "Speaker Level Output (to external speakers)" - Hook up the external speakers using two- conductor insulated wire following the same procedure described under Speaker Level Input. Connect the red (+) terminal o[...]
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Speaker Level Output (to external speakers) + R + R L + L + L R Crossover Frequency Level Min Max 50 200 (Hz) Polarity Reverse Normal Speaker Level Input (from amplifier) Line Input PS Subwoofer L R - + + - Receiver, TV, or Amplifie L R FIG. 3: Speaker Level Output Connecti External Speakers + - - + Speaker Wire 8 PS manual[P].qXp2 7/27/98 3:24 PM [...]
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9 begins to play. The LED turns green. After approximately 3 minutes of non-use (no signal being received), your PS subwoofer goes into the auto shut- off mode. The LED turns RED to signify this stand-by condition. AMBER - The LED turns amber briefly when the amplifier is in the protection mode. This occurs when the subwoofer power switch is turned[...]
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Use the POLARITY switch to maintain proper acoustic summation with the main speakers. Listen to your PS subwoofer and main speakers with the switch on "Normal" then listen to the same material with the switch on "Reverse" . Decide which way sounds better and leave the switch in this position. You should repeat this procedure if [...]
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Specifications PS60 PS100 PS120 Amplifier Power (RMS)* 50 Watts 50 Watts 100 Watts Low Frequency 6-1/2" 10" 12" Voice Coil Diameter 1" 2" 2" Cone Material Polypropylene High High Polymer Polymer Laminate Laminate Inputs Line Level Line Level Line Level & Speaker & Speaker & Speaker Level Level Level Outputs[...]
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P PO PS60 JBL Consumer Products, Inc. 240 Crossways Park West Woodbury, NY 11797 8500 Balboa Blvd. Northridge, CA 91329 800 645 7484 A Harman International Company Part No. 75758 PS manual[P].qXp2 7/27/98 3:24 PM Page 1[...]