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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Philips SA741C, 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.
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The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Philips SA741C 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 Philips SA741C. 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 Philips SA741C should contain:
- informations concerning technical data of Philips SA741C
- name of the manufacturer and a year of construction of the Philips SA741C item
- rules of operation, control and maintenance of the Philips SA741C 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 Philips SA741C 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 Philips SA741C, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Philips 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 Philips SA741C.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Philips SA741C 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
Philips Semiconductors Product specification µ A741/ µ A741C/SA741C General purpose operational amplifier 1 1994 Aug 31 853-0903 13721 DESCRIPTION The µ A741 is a high performance operational amplifier with high open-loop gain, internal compensation, high common mode range and exceptional temperature stability . The µ A741 is short-circuit-prot[...]
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Page 2
Philips Semiconductors Product specification µ A741/ µ A741C/SA741C General purpose operational amplifier 1994 Aug 31 2 DC ELECTRICAL CHARACTERISTICS T A = 25 ° C, V S = ± 15V , unless otherwise specified. SYMBOL P ARAMETER TEST CONDITIONS µ A741 µ A741C UNIT SYMBOL P ARAMETER TEST CONDITIONS Min T yp Max Min T yp Max UNIT V OS Offset voltage[...]
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Page 3
Philips Semiconductors Product specification µ A741/ µ A741C/SA741C General purpose operational amplifier 1994 Aug 31 3 DC ELECTRICAL CHARACTERISTICS T A = 25 ° C, V S = ± 15V , unless otherwise specified. SYMBOL P ARAMETER TEST CONDITIONS SA741C UNIT SYMBOL P ARAMETER TEST CONDITIONS Min T yp Max UNIT V OS R S =10k Ω 2.0 6.0 mV Offset voltag[...]
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Page 4
Philips Semiconductors Product specification µ A741/ µ A741C/SA741C General purpose operational amplifier 1994 Aug 31 4 EQUIV ALENT SCHEMA TIC NON–INVERTING INPUT Q1 Q8 Q2 Q3 Q4 Q7 Q5 Q6 R1 1K Ω R3 50K Ω R2 1K Ω Q9 Q13 R5 39K Ω Q10 Q1 1 Q22 V+ Q14 R9 25 Ω OUTPUT R10 50 Ω Q20 Q16 Q17 Q18 Q15 V– R1 1 50 Ω R12 50k Ω R7 4.5 Ω R8[...]
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Page 5
Philips Semiconductors Product specification µ A741/ µ A741C/SA741C General purpose operational amplifier 1994 Aug 31 5 TYPICAL PERFORMANCE CHARACTERISTICS –55 o C < T A < +125 o C R L > 2k Ω 40 36 32 28 24 20 16 12 8 4 0 5 10 15 20 SUPPL Y VOL T AGE — + V PEAK TO PEAK OUTPUT SWING — V –55 o C < T A < +125 o C 16 14 12 10[...]
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Page 6
Philips Semiconductors Product specification µ A741/ µ A741C/SA741C General purpose operational amplifier 1994 Aug 31 6 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) MEAN SQUARE VOL T AGE — A /Hz 2 10–1kHz 35 30 25 20 15 10 –60 –20 20 60 100 140 TEMPERA TURE — o C SHORT CIRCUIT CURRENT — mA V S = + 15V T A = 25 o C 10 –13 10 –14[...]
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Page 7
Philips Semiconductors Product specification µ A741/ µ A741C/SA741C General purpose operational amplifier 1994 Aug 31 7 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) V OUTPUT VOL T AGE (Vp–p) OUT 28 24 20 16 12 8 4 0 10 100 1K 10K 100K (VOL T AGE FOLLOWER) + 15 VOL T SUPPLIES THD < 5% FREQUENCY — Hz Power Bandwidth (Large–Signal Swing [...]