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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Microplane 201, 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 Microplane 201 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 Microplane 201. 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 Microplane 201 should contain:
- informations concerning technical data of Microplane 201
- name of the manufacturer and a year of construction of the Microplane 201 item
- rules of operation, control and maintenance of the Microplane 201 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 Microplane 201 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 Microplane 201, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Microplane 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 Microplane 201.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Microplane 201 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
OWNERS MANUAL MODEL 201 MICROPHONE PREAMPLIFIER PO Box 204 Boulder, CO. 80306 303.443.7454 fax: 303.444.4634 Revision C March, 2000 © Copyright 1996, Lunatec LLC[...]
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I. OPERATIO N ............................................... 2 .... A. FRONT PANEL CONTROL S .......................................... 2 ...... 1. GAIN CONTRO L .................................................. 2 ...... 2. TRIM CONTRO L .................................................. 2 ...... 3. PHANTOM POWE R ................................[...]
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Thank you for purchasing the Grace design model 201 microphone preamplifier. It is built to be completely reliable and easy to use. However, there are some important instructions included in this manual. Please take the time to familiarize yourself with the installation and operation of the unit and most problems will be avoided. Regardless of what[...]
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off, the LED will illuminate if voltage is being fed from an external source. (i.e. when using a direct split in a remote recording application.) 4 . PHASE REVERSE The phase reverse switch (labeled ∅ ∅ ) reverses the absolute polarity of the music signal at the input of the preamplifier. The switch illuminates green and provides power for a sea[...]
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level before the trim control, preamplifier overload can be avoided. It is best to leave the trim control fully clockwise for normal recording operations. II. INSTALLATION A . AUDIO TERMINATIONS 1 . Input connections are made via female XLR connectors with pin 2 positive, pin 3 negative and pin 1 ground. 48V phantom power is supplied on pins 2 and [...]
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PREAMP END 1 3 2 1 3 2 301 RECORDER END Figure 2. 600 Ω BALANCED CABLE TERMINATION B . POWER TERMINATION 1 . A standard AC power cable is included. For safety, it is recommended that the cord be connected to a grounded outlet. In the event of noise from a ground loop, the audio ground can be isolated from the chassis ground by throwing the AUDIO [...]
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screws that hold each rack ear in place. After removing the rack ears replace the two lower screws on each side of the preamplifier. III. MAINTENANCE A . The model 201 was designed to be maintenance free for many years. It is highly unlikely that your unit will require service. However, there are two adjustments that may need to be made from time t[...]
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iv . Apply power to the generator, preamplifier, then the level meter. v . Adjust the generator output level so that the preamplifier output level is at the desired red threshold. If the proper level can't be reached, adjust the preamplifier gain control. vi . Locate VR1 on the channel 1 audio circuit board. (See figure 7) Adjust VR1 until the[...]
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1 . EQUIPMENT NEEDED i . Oscilloscope with a DC coupled 10mV input range. ii . Unbalanced output cable. (see Figure 1.) iii . Plastic alignment tool or a small screwdriver. iv . #2 Phillips screwdriver 2 . PROCEDURE i . Remove the 12 #6-32 flat head screws from the top lid but leave the lid in place. ii . Set all of the preamplifier gain controls t[...]
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IV . SPECIFICATIONS FREQUENCY RESPONSE @ 40dB gain /± 0.2dB 20Hz-300kHz @ 40dB gain /± 3dB 4.5Hz-1.0MHz THD+N @ 40dB gain +20dbu out <.0015% INTERMODULATION DISTORTION @40dB gain +25dBu out <.0025% NOISE - REFERRED TO INPUT @60dB gain 50 Ω source -130dB PHASE DEVIATION 50-20kHz <2° CROSSTALK @40dB gain -109dB CMRR @60dB gain, 3.5Vcm, [...]