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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Philips BGD712, 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 Philips BGD712 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 BGD712. 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 BGD712 should contain:
- informations concerning technical data of Philips BGD712
- name of the manufacturer and a year of construction of the Philips BGD712 item
- rules of operation, control and maintenance of the Philips BGD712 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 BGD712 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 BGD712, 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 BGD712.
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 BGD712 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
DA T A SH EET Product specification Supersedes data of 2001 Oct 29 2001 Nov 02 DISCRETE SEMICONDUCT ORS BGD712 750 MHz, 18.5 dB gain power doubler amplifier b ook, halfpage M3D252[...]
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Page 2
2001 Nov 02 2 Philips Semiconductors Product specification 750 MHz, 18.5 dB gain power doub ler amplifier BGD712 FEA TURES • Excellent linearity • Extremely low noise • Excellent return loss properties • Silicon nitride passivation • Rugged construction • Gold metallization ensures excellent reliability. APPLICA TIONS • CATV systems[...]
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Page 3
2001 Nov 02 3 Philips Semiconductors Product specification 750 MHz, 18.5 dB gain pow er doubler amplifier BGD712 CHARA CTERISTICS Bandwidth 40 to 750 MHz; V B = 24 V ; T mb =3 5 ° C; Z S =Z L =7 5 Ω SYMBOL P ARAMETER CONDITIONS MIN. TYP . MAX. UNIT G p power gain f = 45 MHz 18.2 18.5 18.8 dB f = 750 MHz 19 19.5 20 dB SL slope straight line f =[...]
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Page 4
2001 Nov 02 4 Philips Semiconductors Product specification 750 MHz, 18.5 dB gain pow er doubler amplifier BGD712 Notes 1. Slope straight line is defined as gain at 750 MHz − gain at 45 MHz. 2. Tilt = 7.3 dB (55 to 547 MHz). 3. f p = 55.25 MHz; V p = 44 dBmV; f q = 691.25 MHz; V q = 44 dBmV; measured at f p +f q = 746.5 MHz. 4. Measured accordin[...]
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Page 5
2001 Nov 02 5 Philips Semiconductors Product specification 750 MHz, 18.5 dB gain pow er doubler amplifier BGD712 handbook, halfpage 200 0 400 800 600 MCD842 f (MHz) CTB (dB) − 50 − 60 − 80 − 90 − 70 56 52 44 40 48 (1) (2) (3) (4) V o (dBmV) Fig.2 Composite triple beat as a function of frequency under tilted conditions. (1) V o . (2) Typ[...]
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Page 6
2001 Nov 02 6 Philips Semiconductors Product specification 750 MHz, 18.5 dB gain pow er doubler amplifier BGD712 P ACKA GE OUTLINE UNIT A 2 max. c ee 1 q Q max. q 1 q 2 U 1 max. U 2 W REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC EIAJ mm 20.8 9.1 0.51 0.38 0.25 27.2 2.54 13.75 2.54 5.08 12.7 8.8 4.15 3.85 2.4 38.1 25.4 10.2 [...]
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Page 7
2001 Nov 02 7 Philips Semiconductors Product specification 750 MHz, 18.5 dB gain pow er doubler amplifier BGD712 D A T A SHEET ST A TUS Notes 1. Please consult the most recently issued data sheet before initiating or completing a design. 2. The product status of the device(s) described in this data sheet may have changed since this data sheet was[...]
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Page 8
© Koninklijke Philips Electronics N.V. 2001 SCA73 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No[...]