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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Philips BGY87, 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 BGY87 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 BGY87. 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 BGY87 should contain:
- informations concerning technical data of Philips BGY87
- name of the manufacturer and a year of construction of the Philips BGY87 item
- rules of operation, control and maintenance of the Philips BGY87 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 BGY87 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 BGY87, 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 BGY87.
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 BGY87 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 February 1994 1999 Mar 25 DISCRETE SEMICONDUCT ORS BGY86; BGY87 CATV amplifier modules b ook, halfpage M3D252[...]
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Page 2
1999 Mar 25 2 Philips Semiconductors Product specification CA TV amplifier modules BGY86; BGY87 FEA TURES • Excellent linearity • Extremely low noise • Silicon nitride passivation • Rugged construction • TiPtAu metallized crystals ensure optimal reliability. DESCRIPTION Hybrid amplifier modules for CATV systems operating over a frequenc[...]
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Page 3
1999 Mar 25 3 Philips Semiconductors Product specification CA TV amplifier modules BGY86; BGY87 CHARACTERISTICS Bandwidth 40 to 450 MHz; V B = 24 V ; T mb =3 0 ° C; Z S =Z L =7 5 Ω Notes 1. f p = 55.25 MHz; V p = 46 dBmV; f q = 391.25 MHz; V q = 46 dBmV; measured at f p +f q = 446.5 MHz. 2. Measured according to DIN45004B: f p = 440.25 MHz; V [...]
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Page 4
1999 Mar 25 4 Philips Semiconductors Product specification CA TV amplifier modules BGY86; BGY87 P ACKAGE 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 4.2 44.75 8 0.25 0[...]
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Page 5
1999 Mar 25 5 Philips Semiconductors Product specification CA TV amplifier modules BGY86; BGY87 DEFINITIONS LIFE SUPPORT APPLICA TIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selli[...]
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Page 6
1999 Mar 25 6 Philips Semiconductors Product specification CA TV amplifier modules BGY86; BGY87 NOTES[...]
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Page 7
1999 Mar 25 7 Philips Semiconductors Product specification CA TV amplifier modules BGY86; BGY87 NOTES[...]
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Page 8
Internet: http://www.semiconductors.philips.com Philips Semiconductors – a worldwide company © Philips Electronics N.V. 1999 SCA63 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 cont[...]