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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Musical Fidelity M250, 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 Musical Fidelity M250 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 Musical Fidelity M250. 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 Musical Fidelity M250 should contain:
- informations concerning technical data of Musical Fidelity M250
- name of the manufacturer and a year of construction of the Musical Fidelity M250 item
- rules of operation, control and maintenance of the Musical Fidelity M250 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 Musical Fidelity M250 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 Musical Fidelity M250, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Musical Fidelity 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 Musical Fidelity M250.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Musical Fidelity M250 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
M250 Amplifier Instructions for Use Page 1 of 8 Issue 4: May 2002 O PERA TE PO W ER MU S I CA L FI DE L I TY M250 MONOBLOC AMPLIFIER INSTRUCTIONS FOR USE Thank you for pur chasing the Musical Fidelity M250 monobloc power amplifier . Used pr operly and car efully , it should give you many years of outstanding musical r epr oduction. Dust r egularly [...]
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M250 Amplifier Instructions for Use Page 2 of 8 Issue 4: May 2002 SAFETY INFORMA TION IMPOR T ANT! (U.K. only) This unit is supplied in the U.K. with a mains lead fitted with a moulded 13 amp plug. If, for any reason, you need to cut off this plug, please remove the fuse holder and dispose of the plug safely , out of reach of children. It must not [...]
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M250 Amplifier Instructions for Use Page 3 of 8 Issue 4: May 2002 GENERAL ADVICE INST ALLA TION PRECAUTIONS and USER INFORMA TION Y our new M250 power amplifier is designed and built to provide trouble-free performance, but as with all electronic devices it is necessary to observe a few precautions: Heed all warnings shown on the back of the pr odu[...]
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M250 Amplifier Instructions for Use Page 4 of 8 Issue 4: May 2002 CONNECTIONS AND F ACILITIES MA D E I N EN G L A N D BY MU S I CA L FI DE L I TY POWE R CONSUM PTION 400W SERI AL NUM B E R 50/ 60H z PO W E R UN I TS 15- 17 OL Y MP I C TRA D I NG ESTATE FU L TO N RO A D W EM BL EY MI D D L ESEX HA9 O TF EN G L A N D I MP OR T A N T SPEA K ER OU T P [...]
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M250 Amplifier Instructions for Use Page 5 of 8 Issue 4: May 2002 CONNECTIONS T aking the left channel connections, the pre-amp’ s left output is connected to the- first M250’ s LINE INPUT (used for the woofer , or low frequencies), and then the first M250’ s LOOP OUTPUT is connect- ed to the LINE INPUT of the second M250 (used for the tweete[...]
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M250 Amplifier Instructions for Use Page 6 of 8 OPERA TION Issue 4: May 2002 OPERA TION Press the POWER rocker switch on the rear panel - the orange POWER LED on the front panel will light confirming that the unit is ready for use. Audio Sense Mode The M250 is now in “audio sense” mode, and will turn on when an input signal is detected. When an[...]
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M250 Amplifier Instructions for Use Page 7 of 8 Issue 4: May 2002 TROUBLESHOOTING Basic problem-solving with an amplifier is similar to troubleshooting any other electrical or electronic equipment. Always check the most obvious possible causes first. T o give you a few ideas of what to look for , check the following: If none of these actions effect[...]
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M250 Amplifier Instructions for Use Page 8 of 8 Issue 4: May 2002 SPECIFICA TIONS : Output voltage, RMS 45 V olts 20Hz to 20kHz peak 127 V olts Power output 250 W atts into 8 Ohms (24dBW) 450 W atts into 4 Ohms Peak-to-peak output current 72 Amps Damping factor 180 Output devices per channel 6 T otal Harmonic Distortion + noise 0 . 006% at 1kHz up [...]