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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Philips TDA1020, 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 TDA1020 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 TDA1020. 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 TDA1020 should contain:
- informations concerning technical data of Philips TDA1020
- name of the manufacturer and a year of construction of the Philips TDA1020 item
- rules of operation, control and maintenance of the Philips TDA1020 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 TDA1020 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 TDA1020, 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 TDA1020.
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 TDA1020 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 File under Integrated Circuits, IC01 November 1982 INTEGRA TED CIRCUITS TDA1020 12 W car radio power amplifier[...]
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Page 2
November 1982 2 Preliminary Specification Philips Semiconductors Product specification 12 W car radio power amplifier TDA1020 The TDA1020 is a monolithic integrated 12 W audio amplifier in a 9-lead single in-line (SIL) plastic package. The device is primarily developed as a car radio amplifier. At a supply voltage of V P = 14,4 V, an output power[...]
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Page 3
November 1982 3 Preliminary Specification Philips Semiconductors Product specification 12 W car radio power amplifier TDA1020 PINNING 1. Negative supply (substrate) 2. Output power stage 3. Positive supply (V P ) 4. Bootstrap 5. Ripple rejection filter 6. Input power stage 7. Output preamplifier 8. Input preamplifier 9. Negative supply Fig.1 Inte[...]
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Page 4
November 1982 4 Preliminary Specification Philips Semiconductors Product specification 12 W car radio power amplifier TDA1020 RA TINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Supply voltage; operating (pin 3) V P max. 18 V Supply voltage; non-operating V P max. 28 V Supply voltage; load dump V P max. 45 V Non-repe[...]
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Page 5
November 1982 5 Preliminary Specification Philips Semiconductors Product specification 12 W car radio power amplifier TDA1020 HEA TSINK DESIGN EXAMPLE The derating of 8 K/W of the encapsulation requires the following external heatsink (for sine-wave drive): 10 W in 2 Ω at V P = 14,4 V maximum sine-wave dissipation: 5,2 W T amb = 60 ° C maximum[...]
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Page 6
November 1982 6 Preliminary Specification Philips Semiconductors Product specification 12 W car radio power amplifier TDA1020 Notes 1. Measured with an ideal coupling capacitor to the speaker load. 2. Measured with a load resistor of 40 k Ω. 3. Measured according to IEC curve-A. 4. Maximum ripple amplitude is 2 V; input is short-circuited. 5. T[...]
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Page 7
November 1982 7 Preliminary Specification Philips Semiconductors Product specification 12 W car radio power amplifier TDA1020 Fig.3 Test circuit. (1) With R L = 2 Ω , preferred value of C8 = 2200 µ F.[...]
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Page 8
November 1982 8 Preliminary Specification Philips Semiconductors Product specification 12 W car radio power amplifier TDA1020 P ACKAGE OUTLINE UNIT A A max. 2 A 3 b 1 D 1 b 2 bc D (1) E (1) Z max. (1) eL P P 1 q 1 q 2 q REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC EIAJ mm 18.5 17.8 3.7 8.7 8.0 A 4 15.8 15.4 1.40 1.14 0.67 0[...]
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Page 9
November 1982 9 Preliminary Specification Philips Semiconductors Product specification 12 W car radio power amplifier TDA1020 SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wav[...]