History of Mathematics Essay Example for Free

History of Mathematics Essay If D is between A and B, then AD + DB = AB (Segment Addition Postulate). And segment AB has exactly one midpoint which is D (Midpoint Postulate). The midsegment of a triangle is a segment that connects the midpoints of two sides of a triangle. Midsegment Theorem states that the segment that joins the midpoints of two sides of a triangle is parallel to the third side and has a length equal to half the length of the third side. In the figure show above (and below), DE will always be equal to half of BC. Given ? ABC with point D the midpoint of AB and point E the midpoint of AC and point F is the midpoint of BC, the following can be concluded: Since the tangent of circle is perpendicular to the radius drawn to the tangency point, both radii of the two orthogonal circles A and B drawn to the point of intersection and the line segment connecting the centres form a right triangle. If and are the equations of the two circles A and B, then by Pythagorean theorem, is the condition of the orthogonality of the circles. A Saccheri quadrilateral is a quadrilateral that has one set of opposite sides called the legs that are congruent, the other set of opposite sides called the bases that are disjointly parallel, and, at one of the bases, both angles are right angles. It is named after Giovanni Gerolamo Saccheri, an Italian Jesuit priest and mathematician, who attempted to prove Euclids Fifth Postulate from the other axioms by the use of a reductio ad absurdum argument by assuming the negation of the Fifth Postulate. In hyperbolic geometry, since the angle sum of a triangle is strictly less than radians, then the angle sum of a quadrilateral in hyperbolic geometry is strictly less than radians. Thus, in any Saccheri quadrilateral, the angles that are not right angles must be acute. Some examples of Saccheri quadrilaterals in various models are shown below. In each example, the Saccheri quadrilateral is labelled as ABCD, and the common perpendicular line to the bases is drawn in blue. For hundreds of years mathematicians tried without success to prove the postulate as a theorem, that is, to deduce it from Euclid’s other four postulates. It was not until the last century or two that four mathematicians, Bolyai, Gauss, Lobachevsky, and Riemann, working independently, discovered that Euclid’s parallel postulate could not be proven from his other postulates. Their discovery paved the way for the development of other kinds of geometry, called non-Euclidean geometries. Non-Euclidean geometries differ from Euclidean geometry only in their rejection of the parallel postulate but this single alteration at the axiomatic foundation of the geometry has profound effects in its logical consequences. The Lobachevsky geometry is therefore consists of these statements: ? There are lines that are parallel which are everywhere equidistant. ? In any triangle the sum of the three angles is two right angles which is 180 degrees. ? Straight lines parallel to the same line are parallel to each other. ? There exist geometric figures similar with same shape but of different size to other geometric figures. ? Given three points, there is a circle that passes through all three. ? If three angles of a quadrilateral are right angles, then the fourth angle is a right angle. ? There is no triangle in which all three angles are as small as we please. ? There exist squares or equilateral quadrilaterals with four right angles.

The importance of socialization

The importance of socialization Socialization 1 Running Head:   The Importance of Socialization The Importance of Socialization Socialization is the process of learning how to become part of a culture.   Through socialization one learns the cultures language, their role in life, and what is expected from them.   Socialization is a very important process in the forming of personality.   Socialization occurs when one interacts with other people.   Socialization allows all individuals in a community to develop very similar values, norms, and beliefs (ONeil, 2009).   Socialization is a lifelong process, though the early stages of socialization are crucial (Shepard, 2009, p. 90).   Without Socialization a person will develop different physical and mental disabilities.   Socialization is a very important life process. The socialization of young children is very important. During the first few years of childrens live, children interacts only with a few different people, mostly family.   Everything children see and hear leaves an impression on them.   In this time children learn to walk, learn talk, develop the ability to have a relationship, and start developing personality.   A very important part of socialization is role taking.   The first step in role taking is the preparatory stage.   The Preparatory stage is also known as the imitation stage.   This stage begins shortly after the first year of life.   In this stage children imitate things happening around them, including sounds and physical movement, but do not understand what they are imitating. Around age three or four children begin the play stage.   In the play stage children start to take the role of one person at a time (Chapter 4: Socialization). Children pretend to be a mother, father, police officer, firefighter, teac her, doctor, or someone the children know or see; most likely someone the children look up to.   In this stage children imitate being someone else by doing things they think that person would do. The third and final stage of developing role taking is the game stage.   The game stage generally starts around age six.   In the game stage children imitate the roles of several others at the same time.   In the game stage the children learns to play sports and participate in group activities that require them to have some idea of what other people expect from them.   In this stage the children understands the roles of multiple people at the same time.   Role taking allows people to be part of a group (Shepard, 2009, p.96).   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Another part of the process of socialization is cognitive development.   Cognitive development refers to the development of thinking, knowing, perceiving, judging, and reasoning.   Children develop these abilities through things occurring around them.   According to Piagets theory Cognitive intelligence develops in stages. In Piagets theory there are four stages; the sensorimotor stage, the preoperational stage, the concrete operational stage, and the formal operational stage (Huitt and Hummel, 2003).   The sensorimotor stage begins at birth and ends around age two.   During this stage the children learns how to coordinate body movements with thoughts.   They learn that they are separate from other objects, and can cause things to happen.  Ã‚   The second stage is the preoperational stage.   This stage starts around age two and ends around age seven.   In this stage the children learns to associate symbols and lan guage with objects.   Children see everything through their own view point.   During this stage children are very self-centered.   The third stage, the stage of concrete operations, starts around age eight and ends around age twelve.   In this stage children learn to solve problems and reason using physical objects.   The fourth and final stage is the Formal operation stage.   This stage begins around age thirteen and continues into adulthood.   In this stage individuals begin to reason without using physical objects or symbols.   They learn to make a hypothesis to solve a problem.   All of these stages make up cognitive development (Shepard, 2009, p.95, 96).   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   There are three major Sources of Socialization that affect Children; family, school, mass media.   The Family is one of the most important parts of socialization for children, because, their first contact is with family, and for the first few years of life children interact mostly with family.   Children learn their values, norms, and beliefs from their family.   Their family is a large factor in what other people think about individuals.   In School children are in the hands of adults other than parents.   In school children learn to be less dependent on their parents.   In school children learn discipline, order, cooperation, and conformity.   In schools children socialize with friends.   Mass media includes television, radio, newspapers, magazines, movies, books, and the internet.   This form of socialization can be positive or negative.   Children learn how different social statuses are expected to behave.   Sometimes mass media distorts reality, and makes things appear more exciting than it really is.   These things have a great influence on children and are a very important part of socialization (Shepard, 2009, p.102-106). Without socialization children will not develop skills necessary for living.   They are not able to learn to talk, walk, eat, use the bathroom, read, write, and many other things.   There are some documented observations of children who have been socially isolated.   Three of these are Anna, Isabelle, and Genie (shepard, 2009, p.91). Anna was the second child to her unmarried mother.   They lived with Annas grandfather.   Annas mother thought that if her father would see Anna he would be angered.   Because of this, Anna was forced to live in a room that was much like an attic.   She was never given food, she lived solely on milk.   When she was discovered at age five, she could not walk, talk, and she showed no sign of intelligence.   Shortly after she was discovered, she was placed in a country home for children.   Within a year and a half at the country home she learned to understand simple commands, eat, keep herself clean, and walk.   Her speech made some improvement, but her speech was still the equivalent of a one-year-old.   After the year and a half at the country home, she was transferred to a school for retarded children.   At the school she made some progress in her speech, it was equivalent to the speech of a two-year-old.   She learned to do lots of very basic things, such as bo unce and catch a ball, eat normally, use the bathroom, dress herself, build with blocks, identify a few colors, and brush her teeth.   She died at age ten (Shepard, 2009, p.91, 92). Isabelle was the daughter of a single mother.   Her mother was a deaf-mute.   Isabelle was kept in dark room with her mother.   She was found at age six.   Her legs were bowed, she could not talk, and she was scared of strangers.   She was put into an intensive program of rehabilitation, she had a slow start, but then she progressed very quickly.   In two years she acquired the skills of a six-year-old.   When she was eight, her education was equivalent to the children her own age.   Her progress may be linked to the presence of her mother when she was isolated (Shepard, 2009, p.92). Genie was locked in a room from the time she was two till she was discovered, at age thirteen.   She was completely silent, because her father punished her for making any vocal sounds.   She could not chew food, because she had never been given solid food.   She could not stand strait, or straiten her arms.   Genie was not successful in her four years of rehabilitation.   After her rehabilitation she could not read, could only speak in short phrases, and she just started to control her feelings and behavior (Shepard, 2009, p.92). Socialization among children is very important.   Children must learn to walk, talk, eat, and lots of other life skills.   Without socialization individuals can not develop intelligence, and never learn how to perform basic daily functions.   Children must know the values, beliefs, and norms of the surrounding culture, so that they will be able to know what is expected from them. The process of socialization and the sources of socialization are very important in the developing of children. Socialization is a very Important Process throughout life, but it the most important in young children.   Works Cited Chapter 4:   Socialization. (n.d.). Retrieved October 5, 2009, from http://www.latech.edu/tech/liberal-arts/sociology/white/3socialization.htm Huitt, W., Hummel, J. (n.d.). Piagets theory of cognitive development. Valdosta, GA: Valdosta State University, Retrieved October 5, 2009, from http://chiron.valdosta.edu/whuitt/col/cogsys/piaget.html ONeil, D. (2009, January 3). socialization. Retrieved September 28, 2009, from anthro.palomar.edu/social/soc_1.htm Shepard, J. M. (2009). Sociology (Cengage Advantage Books). Belmont, CA: Wadsworth Publishing Company.

Michael Porters Theory Of National Competitive Advantage Economics Essay

Michael Porters Theory Of National Competitive Advantage Economics Essay Porters Diamond suggests that the national home base of a firm plays an important role in shaping the extent a nation can create new advanced factors such as skilled labour, advanced technology and knowledge base, government support, and culture. Government and chance are two elements are not included in the four basic ones that form the diamond but integral nonetheless as either-or can influence the entire diamond. It is with these six forces and their interactions were studied for 100 industry case studies (Porter, 1990 26-27). The importance of this model is integral on these elements support or hinder these firms from developing advantages in the global arena, specifically from a firm-based perspective. Factor conditions pertain to the situation in a nation regarding various production factors, both man-made and inherited. These national factors directly affect the industries that subsequently develop. Demand conditions reflect the state of home market demand for products produced within the country, encompassing customer needs/wants, their scope and growth rate, and the mechanisms that transmit domestic preferences to foreign markets. Relating and supporting industries are key in determining a firms success, as the existence or non-existence of internationally competitive inputs reinforce and firms ability to innovate and remain competitive in the global arena. Firm Strategy, Structure, and Rivalry pertain to the conditions in a country that influence a firms establishment, its organization and managemen t, as well as the characteristics of domestic competitors. Porter argues that domestic rivalry and subsequent quest for competitive advantage help provide the elements for repeating those same results in the global marketplace. In applying a real-world example, Porters Diamond will be used to offer explanation as to why the internet market is dominated by firms from the United States of America. Factor Conditions: An industry requires an appropriate supply of factors in its home base if it is to be successful. In the United States there are many specialized factors which apply to the internet industry in addition to generalized advantages that span across domestic industries. A high national income in unison with a large population meant expensive computer hardware and monthly internet fees could be obtained by millions and millions of U.S citizens. It is not selective factor disadvantages, but rather an abundant supply of capital, entrepreneurial orientation, and world-class educational infrastructure (computer technology included) that explain the industries dominance. Demand Conditions: The internet has been rapidly adopted by consumers and businesses alike. The United States has a high penetration of internet access. Virtually every major firm has a website. High disposable income means American consumers can afford to purchase a variety of goods online. This climate has created a rich environment for online only firms to develop and prosper within the U.S. Notable examples include worldwide heavyweight Google, Amazon.com, Ebay, Yahoo, Facebook, Twitter, and Netflix. Related + supporting industries: The United States benefits from local suppliers eager to help prosper by helping industries production, marketing, and distribution needs. Notable is Silicon Valley for its incredibly dense population of high-technology firms; creating an ideal climate with input suppliers closely and the human capital necessary. A culture that fosters entrepreneurship means many individuals are not afraid to risk capital in creating a new venture Firm Strategy, Structure, and rivalry: Following the tech-bubble of the new millennium, which saw the NASDAQ ** technology firms never truly recovered from their reputation as an industry that is volatile, ultra-competative, and ever changing. Many firms have sprung up with impressive growth only to crash-and-burn. This competitive environment however is key to understanding the nature of the industry. Obtaining and sustaining a competitive advantage can be enormously profitable for firms, but by being forced to closely monitor costs, raise productivity, boost product quality, and develop innovative products U.S based internet firms have been able to transfer these advantages only at a costs much lower. Having already obtained the advantage in their home market, they can enter the international marketplace with additional leverage in areas such as Research and Development, quality control, human capital, and overall management. In order to truly understand Porters Diamond theory, the International aspect is integral in forming the platform for which this trade takes place. In The Competitive Advantage of Nations, Porters fundamental objective from the start was to uncover why some social groups, economic institutions and nations advance and prosper (Porter, 1990, p. xi). In todays business environment with Globalization playing and ever more important role, Porter suggests that the competitive advantage of a nations industries is determined by the configuration of the four aforementioned elements forming the Diamond: factor conditions; related and supporting industries; and firm strategy, structure, and rivalry. Foreign subsidiaries with strong internal capabilities and the ability to capitalize on host country opportunities may take strategic initiatives that areas important to a firm or industry as home country determinants(Morrison and Crookell. 1991). Although the domestic environment in which firms compete shapes their ability to compete in international markets, there is likely other circumstances beyond facing vigorous competition domestically in terms of continuously striving to improve their products that influence and offer insight into Firm based National Advantage. National policy and economics considerably influence firms ultimate ability to compete in the global marketplace; while Porter notes national policies may also affect firms international strategies and opportunities in more subtle ways, merely portraying various cultural influences, the geography, religion, climate, and political factors that greatly influence firm-based national advantage by acknowledging they affect each element of the Diamond is not adequate. Porters insisted that a firms ability to compete depends largely upon the strength of the diamond within its home national and the assertion that national economic performance depends on this. Both of these can be critiqued for relevance at a time when the world economy has become increasingly globally oriented, and the multinational corporation increasingly important. ***Dunning (1993, pp. 9-10) points out that in the 1990s an increasing proportion of the assets of firms in a particular country are either acquired from or are located in, another country. Despite this, many firms have a large proportion of their operations away from their home base and it is debatable to suggest that their competitive position rests uniquely upon the strength of diamonds in their home base. It is important not to confuse this with their initial move abroad which it may have initially been the catalyst. In questioning the Clarity of Porters Diamond, Daly (1993) for instance claimed to have significant reason to reject Porters claim that exchange rates and wages are not integral to determining competitiveness. He was able to demostrate that export growth and export shares are impacted by variations in exchange rate as well as labour costs. Despite this, Porters definition of competitiveness is more focused on national productivity compared to export shares. In asserting that competitiveness cannot be meaningfully defined in terms of low labour costs and favourable exchange rates (CAN, p. 7). claim Porters case studies lack a homogenous analytical tool to determine the importance and precise impact of each determinant on the industries competitive position (Rugman, A. M., Verbeke, A. 1993). They that it is extremely difficult to operationalize Porters diamond when putting theory into practice such as what a consultant or strategic planner would attempt I would argue that Michael Porters Theory of National Competitive Advantage is in fact important and a useful tool in understanding the factors affecting firm-based trade-theory, while still offering some analysis as to how country-based specifics influence firms actions and products and ultimately national advantage. As per Porter the determinants of national advantage reinforce each other and proliferate over time in fostering competitive advantage in an industry, thus nations achieve success in international competition where they possess advantages (Porter, 1990). Porter portrays that domestic rivalry as the major spur to innovation and hence success in international competition. It is clear no theory can single-handedly all trade flows in international trade but Porters Diamond is more relevant in understanding intra-industry trade of differentiated goods. This pertains in particular to competitive and dynamic industries where each element in Porters Diamond would be very releva nt in influencing product change while other country-based specifics play a minimal role. Rugman, A. M., Verbeke, A. (1993). How to Operationalize Porters Diamond of International Competitiveness. International Executive, 35(4), 283-299. Retrieved from EBSCOhost. Dunning. John H. (October 1990) Dunning on Porter. paper to the Annual Meeting of the Academy of International Business, Toronto. Morrison, Alan and Crookell, Harold (1991) Free Trade: The Impact on Canadian Subsidiary Strategy. in Earl H. Fry and Lee H. Radebaugh (eds.). Investment in the North American Free Trade Area: Opportunities and Challenges, Provo, Utah: Brigham Young University.

insurance law Essay -- essays research papers

The Nature of Insurance came about to offset any loss that an individual or those engaged in business may suffer through the occurrence of some unforeseen event. To offset this loss the commercial world developed the contract of insurance. In return for a fee the individual, or the business enterprise, would be indemnified for the loss suffered on the occurrence of the event insured against. Contracts of insurance cover a wide field such as life assurance, personal accident public liability, damage to property and general liability insurance. A contract of insurance is a contract whereby one party, called the insurer, agrees in return for a payment called the premium to pay a sum of money to another, called the insured, on the occurrence of a certain event, or to indemnify the insured against the loss caused by the risk which is insured against. Policies of insurance are of two broad types: life assurance, which insures against an event that must happen, namely, death; and liability insurance, which insures against events that may happen. A contract of insurance may be in any form, such as by deed, in writing, or verbal. In practice such a contract is embodied in a written document called a policy, which expressly states all the terms of the contract. Three elements are essential to an insurance contract: (a)  Ã‚  Ã‚  Ã‚  Ã‚  consideration must pass to the Insurer. This usually takes the form of periodic payments, called premiums; (b)  Ã‚  Ã‚  Ã‚  Ã‚  there must be some degree of uncertainty as to whether the event insured against will happen, or if it is bound to happen, as to when it will happen (c)  Ã‚  Ã‚  Ã‚  Ã‚  the event, if or when it happens, must be adverse to the interest of the insured. Insurance business in Ireland is carried on principally by registered friendly societies, which deal in life assurance and are governed by the Friendly Societies Acts 1909-1989. Both statutes attempt to provide some supervision by the state so as to safeguard the interest of policy holders. Insurance companies must hold a licence, maintain a bond with the High court and make annual returns. The usual procedure for a party seeking insurance is to first complete a proposal form and submit it to the insurers. Where the proposal form is rejected that is the end of the matter and there is no contract. The insurer is not ... ...Dodgem Insurance are therefore only required to pay Chandler at most  £150,000 even though the cost might be more. The policy taken out by Joey will in no way effect the policy Chandler has taking out with Dodgem Insurance Ltd. The two Insurance companies will be required to each pay an appropriate percentage of the claim. Chandler is not entitled to any contribution from Central Perk Insurance as this policy was taking out by Dodgem Ltd and is a general contents policy. Dodgem Insurance will receive a relevant payout for any damage done to the general contents on their section of Castle View i.e. the ground floor. Even though Chandler neglected to mention that Castle View has a thatched roof, he is covered by Section 18 (3) of the Marine Insurance Act 1906 (b) i.e. Any circumstance that is known or presumed known to the insurer. The insurer is presumed to know matters or common notoriety or knowledge, and matters, which an insurer in the ordinary course of his business as such ought to know. Chandler may have presumed that because Dodgem Insurance Ltd are located in the same building that he is insuring that they will have taking the fact that it has a thatched roof into account.

Graduation Speech: Always Follow Your Dreams :: Graduation Speech, Commencement Address

I'd like to start out by saying that I am truly honored to speak here today and thank you to my class for choosing me. From the day I first stepped into the learning world of Mrs. Jacobson's kindergarten class spotting tons of building blocks and crayons until the day I walked out of Mr. Fulton's class with memories of burning gummy bears and rubber corks stuck in his ceiling, the majority of my life has been consumed by school. I thought it would never end. Do you know how long we've been in school? Thirteen years and 181 days for each year. That's 2,353 days or 14,118 hours or 847,080 minutes or 50,824,800 seconds. Good lord!!! That's a long time. Why would anyone do this? And half our class probably has scoliosis from teachers loading our backpacks with 75 pounds of books. That's hard to do. I think modern schooling is trying to rise a generation of Quazi Motos. But these 12 years of schooling have provided all of us with memories. Growing up in the community of Murry we are left with a variety of good times and bad times. In intermediate school, you thought it was the end of the world if you were beat by a girl in tetherball or you'd start crying when you lost all your pogs in an intense pog tournament at one of our three recesses. The times that have left positive feelings towards my many years of schooling would have to include watching Mr. Patterson singing the Fig Newton jingle, or watching our Falcon football team destroy Lakewood this year in our Homecoming football game. Or what about the time when Coach Davis, our head basketball coach, went a whole game with his zipper being undone? But my fondest memory of Murry is remembering Mr. Johnson on my first day of freshman year. He had such a lovely full head of hair, but since the class of 2003 has came through, it has gotten a little thinner and a little grayer. These types of memories have shaped us and made us grow into the powerful young adults we are today. Now we're sitting here ready to tackle the challenges of the real world. Graduation is not an end, but more of a rendezvous point from where we go our separate ways. The only thing that lies ahead is the future. Dreams and goals are what push us to be better and what have gotten us here.

Reaction Paper Related on Business Communication Essay

Further, to fully use new pedagogical possibilities offered by ICT, profound changes in managers’ conceptions of learning and knowledge are required. Technical expertise alone is not sufficient for exploiting new pedagogical possibilities provided by ICT; insofar as ICT is used in the educational system as a purely technical innovation, it is not likely that significant pedagogical progress will be achieved. Several cognitive researchers (e. g. , Salomon, 1997; Salomon ; Perkins, 1996; Scardamalia ; Bereiter, 1994) have pointed out that many applications of educational technology support only lower-level processing of knowledge. Yet new pedagogical models of using educational technology, and particularly computer-supported collaborative learning environments, promise to provide new opportunities for solving pedagogical problems in the schools. Scardamalia and Bereiter (1994; in press), and others, have proposed that to meet the future challenges, schools be transformed into communities where productive working for advancing communal knowledge is a primary goal of both students and managers. Knowledge building refers to a process of advancing understanding by setting up, articulating, and answering research questions, searching and exploring information, and generating and evaluating explanations. In the present study, the sustained processes of advancing and building of knowledge characteristic of scientific inquiry and knowledge-creating organizations are called â€Å"progressive inquiry. † Several, concurrent, cognitive research projects share a common goal of fostering such research-like processes of inquiry in education.

Schematics

SCHEMATIC DIAGRAMS FLAT COLOUR TELEVISION 6 2005 YA270 AV-21MT15/P, AV-21MP15/T, AV-21MT35/P, AV-21VA15/P CD-ROM No. SML200507 BASIC CHASSIS CW2 COLOR EXIT CLOSED CAPTION 100+ VNR ECO CINEMA SURROUND BASS RM-C1287 COPYRIGHT  © 2005 Victor Company of Japan, Limited No. YA270 2005/7 AV-21MT15/P, AV-21MP15/T, AV-21MT35/P, AV-21VA15/P STANDARD CIRCUIT DIAGRAM NOTE ON USING CIRCUIT DIAGRAMS 1. SAFETY The components identified by the symbol and shading are critical for safety. For continued safety replace safety ciritical components only with manufactures recommended parts. Type No indication MM PP MPP MF TF BP TAN (3)Coils No unit Others : Original setting position when shipped : DC 20k? /V :H :V : Othters (5)Voltage values 20 µs / div 5ms / div Sweeping time is specified (4)Power Supply : B1 : 9V Respective voltage values are indicated (5)Test point : Test point (6)Connecting method : Connector : Wrapping or soldering : Only test point display : B2 (12V) : 5V : [ µH] : As specified : Ceramic capacitor : Metalized mylar capacitor : Polypropylene capacitor : Metalized polypropylene capacitor : Metalized film capacitor : Thin film capacitor : Bipolar electrolytic capacitor : Tantalum capacitor . SPECIFIED VOLTAGE AND WAVEFORM VALUES The voltage and waveform values have been measured under the following conditions. (1)Input signal (2)Setting positions of each knob/button and variable resistor (3)Internal resistance of tester (4)Oscilloscope sweeping time : Colour bar signal : All DC voltage values Since the voltage values of signal circuit vary to som e extent according to adjustments, use them as reference values. 3. INDICATION OF PARTS SYMBOL [EXAMPLE] In the PW board : R209 R209 (7)Ground symbol : LIVE side ground : ISOLATED(NEUTRAL) side ground : [? : [k? ] : [M? ] : EARTH ground : DIGITAL ground : Receptacle 4. INDICATIONS ON THE CIRCUIT DIAGRAM (1)Resistors Resistance value No unit K M Rated allowable power No indication : 1/16 [W] Others Type No indication OMR MFR MPR UNFR FR (2)Capacitors Capacitance value 1 or higher less than 1 Withstand voltage No indication Others : [pF] : [ µF] : DC50[V] : DC withstand voltage [V] : Carbon resistor : Oxide metal film resistor : Metal film resistor : Metal plate resistor : Uninflammable resistor : Fusible resistor : As specified 5. NOTE FOR REPAIRING SERVICE This model's power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : ( ) side GND and the ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be taken for the following points. (1)Do not touch the LIVE side GND or the LIVE side GND and the ISOLATED(NEUTRAL) side GND simultaneously. if the above caution is not respected, an electric shock may be caused. Therefore, make sure that the power cord is surely removed from the receptacle when, for example, the chassis is pulled out. 2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL) side GND or never measure with a measuring apparatus measure with a measuring apparatus ( oscilloscope, etc. ) the LIVE side GND and ISOLATED(NEUTRAL) side GND at the same time. If the above precaution is not respected, a fuse or any parts will be broken. Since the circuit diagram is a standard one, the circuit and circuit constants may be subject to change for improvement without an y notice. NOTE Due improvement in performance, some part numbers show in the circuit diagram may not agree with those indicated in the part list. When ordering parts, please use the numbers that appear in the Parts List. Composition resistor 1/2 [W] is specified as 1/2S or Comp. AC indicated : AC withstand voltage [V] Electrolytic Capacitors 47/50[Example]: Capacitance value [ µF]/withstand voltage[V] (No. YA270)2-1 CONTENTS SEMICONDUCTOR SHAPES †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 2-2 USING P. W. BOARD †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ -2 BLOC K DIAGRAM †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 2-3 CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM [AV-21MT15/P, AV-21MP15/T] (1/4), (2/4) †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 2-5 MAIN PWB CIRCUIT DIAGRAM [AV-21MT15/P, AV-21MP15/T] (3/4), (4/4) †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 2-7 MAIN PWB CIRCUIT DIAGRAM [AV-21MT35/P] (1/4), (2/4) †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â ‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. -9 MAIN PWB CIRCUIT DIAGRAM [AV-21MT35/P] (3/4), (4/4) †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 2-11 MAIN PWB CIRCUIT DIAGRAM [AV-21VA15/P] (1/3) †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 2-13 MAIN PWB CIRCUIT DIAGRAM [AV-21VA15/P] (2/3), (3/3) †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 2-15 PATTERN DIAGRAMS MAIN PWB PATTERN [AV-21MT15/P, AV-21MP15/T, AV-21MT35/P] †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â ‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. -17 MAIN PWB PATTERN [AV-21VA15/P] †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 2-19 VOLTAGE CHARTS †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 2-21 WAVEFORMS †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã ¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 2-22 SEMICONDUCTOR SHAPES TRANSISTOR BOTTOM VIEW FRONT VIEW TOP VIEW CHIP TR E C B ECB E CB (G)(D)(S) ECB E C B B E C IC BOTTOM VIEW FRONT VIEW TOP VIEW OUT E IN IN E OUT 1 N 1 N 1 N CHIP IC TOP VIEW 1 N 1 N USING P. W. BOARD P. W. BOARD ASS'Y NAME MAIN P. W. BOARD AV-21MT15/P SCW-1714A-H2 AV-21MP15/T SCW-1715A-H2 AV-21MT35/P SCW-1706A-H2 AV-21VA15/P SCW-1728A-H2 2-2(No. YA270) BLOCK DIAGRAM MAIN PWB IC701 MAIN MICRO COMPUTER/ IF VIDEO RGB SYNC DEF. PROCESS R 108,109 SCL SDA TU001 TUNER IC702 MAIN MEMORY 127,128 SCL1, SDA1 SCL0, SDA0 I2C BUS MICRO COMPUTER G B DIGITAL SIGNAL PROCESS R G B IC351 RGB OUT V01 98,99 IF LED 97 REMOTE 119 KEY_IN 122 SV_DET 29, 30 SIF IN I/O PORT PEAKING SCAN VELOCITY MOD. U/V DELAY SIF DETECT VIF DETECT/AGC/AFT SOUND TRAP SKIN TONE U/V TINT SATURATION ROUT GOUT BOUT OSD SELECT 85 86 87 CRT SOCKET PWB SF101 SAW FILTER SF102 SAW FILTER 24, 25 VIF IN 79 Y J801 S-VIDEO VIDEO-1 S_VIDEO INPUT V L R J802 Y VIDEO-2 COMPONENT VIDEO INPUT CB CR J803 L R SW1 Y1 C1 CVBS1 L1 R1 80 PB 78 PR 55 V2 58 Y/V1 59 C1 VIDEO SELECT B-Y R-Y VIDEO C IDENT. Y 51 V3 COLOUR DEMOD BASE-BAND DELAY LINE R G B BASS [AV-21MT35/P] J805 BASS SPEAKER OUTPUT RGB MATRIX & GAMMA V. DRIVE COMB FILTER Y DELAY ADJ. SYNC SEP. VDA,VDB 22, 23 V2/Y PB PR L2 R2 49 L1 50 R1 56 L2 57 R2 34 L3 35 R3 AUDIO SELECT H. DRIVE HOUT 67 J801 HEADPHONE SPEAKER L 20 A_L AUDIO SELECT AUDIO CONTROL A_R 60 61 9 3 OUTPUT J804 VIDEO L R V-OUT L-OUT R-OUT 48 36 37 IC601 AUDIO AMP 13 23 VOUT LOUT ROUT SPEAKER R Q983 Q984 1. 8V REG Q981 Q982 1. 8V REG 1. 8V 1 IC401 V. OUT Q522 H. OUT 5 V VIDEO-3 INPUT (FRONT) J806 VIDEO J807 AUDIO-L J808 AUDIO-R V1. 8V V3 L3 R3 REMOCON RECEIVER POWER LED D901 RECT T921 SW TRANSF. IC972 3. 3V REG IC975 5V REG IC973 12V REG H DY01 DEF YOKE 3. 3V_STB 5V 8V 12V 32V B1 T522 FBT SCREEN FOCUS TV/VIDEO VOL+ VOL- CH+ CH- MENU AC IN F901 S901 L951 POWER SW IC901 POWER REG PC901 VOLTAGE FEEDBACK IC951 ERROR AMP EHV (No. YA270)2-3 2-4(No. YA270) CIRCUIT DIAGRAMS MAIN PWB CIRCUIT DIAGRAM [AV-21MT15/P, AV-21MP15/T] (1/4), (2/4) CN00C QGA2501F1-06 MAIN PWB ASS'Y (2/4) (FRONT LED) SCW-1714A-H2 [AV-21MT15/P] SCW-1715A-H2 [AV-21MP15/T] IC302 S9648 ECO R325 0 R326 X R322 X D303 R323 X X D807 X C807 .1 Q308 X C317 10/50 C806 100/16 R822 1K R824 470 S805 QSW0619-003Z S804 QSW0619-003Z S803 QSW0619-003Z S802 QSW0619-003Z S801 QSW0619-003Z IC801 RPM7238-H5 REMOTECON RECEIVER MAIN PWB ASS'Y(4/4) (CRT SOCKET) CN10T CN00T QJL001-065631 VIDEO-3 INPUT POWER LED (RED) D808 LH22440-T16 J806 QNN0281-003 J808 QNN0282-001 J807 QNN0281-002 R324 R328 0 R329 X R327 39K 0 J809 K801 X C825 NCB31HK-152X C826 NCB31HK-152X R817 X D814 *8 R630 270 1/2W QNS0155-001 R632 270 1/2W CN00S QGA2501C5-04Z SPEAKER R823 47 1/2W Y809 X CN10A QJL001-050600-E R762 220 R763 220 220 220 R764 R765 R627 X REMOTE PW_LED ECO_IN KEYIN R628 X LC805 QQR1199-002 B_MUTE R_AOUT L_AOUT Y_GND A_GND GND GND CN00A QJL001-050600-E R3 VDO_DET PROTECT S_REDUCE A_MUTE 4. 5/OTHER 5V ECO_IN REMOTE PW_LED SDA1 KEYIN SCL1 1. 8V PW V1. 8A 1. 8V 1. 8V S_V_DET 5V 3. 58/OTHER D341 *3 D342 *3 5V V3 L3 Y810 X R821 470 R820 330 R819 220 R818 180 R626 0 R629 0 R631 1K R633 1K C615 1000/25 C616 1000/25 R816 75 SDA1 SCL1 C1_GND D343 *3 Q341 *2 C1 R344 22 R961 1. 8K V12A S_V_DET R740 15K R788 0 D714 MA8030/H/-X D D707 *3 R794 2. 2K C792 . 1 G S L713 *4 W-A1 R755 1. 2K R750 10K 5V Q706 SSM3K02F-X D349 X R753 1. 2K D344 X D345 *3 Y1/CVBS1 Y_GND LC801 QQR1199-002 Y801 X R801 75 Y819 BW C D706 MA8036-X C777 . 1 C778 47/16 R760 100 SCL0 SDA0 R761 100 Q612 *1 R787 4. 7K R342 X 3. 3K 3. 3K 220 4. 7K *3 *3 C341 100/16 L304 X R320 X R319 X C316 X IC301 X C342 X C315 X C314 X C313 X X MC C312 X C311 X L303 X 3. V C305 X MC C310 X C309 X L302 X V2/Y V Y U PB PB_GND 0 0 R315 0 S1 1/50 22/50 C772 . 22 Q708 *2 R795 100K Q707 *1 Q705 SSM3K02F-X G .22 D Y717 QUY160-075Y 5V *3 0 Y802 X D817 *8 V1 L715 *4 C771 S R783 10K R776 15K C775 . 22 R758 3. 3K C767 VCC SDA L712 SCL WP 100 R976 1K 3. 3V_STB Q791 *1 SCL0 SDA0 C793 4. 7/50 Y791 X PW R790 1K R793 D713 MA8039/H/-X R736 100 X301 X C302 X R307 X R308 X R 310 X R311 X R321 X C318 X VDO_DET L1 R802 0 C821 NCB31HK-152X R1 R803 0 C822 NCB31HK-152X Y818 0 IC702 CH CH J801 QNZ0454-002 L1 VIDEO-1 S-VIDEO INPUT C770 . 1 D709 R745 R743 C783 R741 L714 R785 D711 C768 D712 R748 2. 7K R759 3. 3K 100 1K *4 .22 R730 0 R757 4. 7K C794 X R747 VSS R777 R771 A0 A1 A2 R739 0 R742 220 R744 220 R754 220 C303 X CH CVBSO/PIP Q307 X R318 X C776 . 1 MC R752 100 R751 100 100 R749 1K R1 R309 X R312 C304 X MC CVBSO/PIP_GND GND P_ON/OFF R984 47K R983 3. 9 1/2W R982 47K Q982 *1 R738 10K R981 3. 9 1/2W POWER SDAO S_REDUCE PROT VDO_DET A_MUTE ROTATION VER_PROTECT P25/PWM4 REMOTE SCLO SDA1 PW_LED PW_LED SCL1 TIMER TIMER ECO_IN VssC3 S_V_DET VssC1+P1 KEY_IN DecV1V8 V3. 3P VssC2 V1. 8C3 V1. 8C1 4. 5/OTHER 3. 58/OTHER P12/Int2 P00/I2SDI1 V1. 8C2 Q981 2SA562TM/Y/-T L711 *4 C766 . 22 C764 . 1 C765 100/16 L710 *4 L709 *4 R313 X V1. 8A D982 UDZS2. 0B-X VssP2 VssC4 1. 8V L701 *4 L702 *4 C701 . 22 C702 . 22 V1. 8C4 V3. 3A3 VrefP_Sdac 470/16 Q306 X Q305 X V1. 8ADC VssADC V3. 3A2 V1. 8A GndA RefAd V3. 3RefAdP 1. 8V D981 UDZS2. 0B-X R314 X Y817 0 R737 0 Q704 *1 R985 4. 7K R986 4. 7K Q984 *1 Q983 2SA562TM/Y/-T C763 . 22 C761 . 1 C762 100/16 L708 *4 C760 . 22 L707 *4 C759 100/16 R735 100 Y715 QUY160-100Y MC C306 X LC802 QQR1199-002 Y803 X D810 *8 R804 75 V2/Y_GND Y804 Y805 X X CONT PW R792 33 1/2W BL_GND PW 3. 3V_STB 8V A_VCC A_GND 5V 12V 3. V NECK H_DRIVE HFB ABL EW P_ON/OFF VDRA+ VDRBPROTECT V12A 32V TU001 QAU0353-002 TUNER K103 QQR1114-001Z L001 X K101 QQR1114-001Z L703 *4 CH VrefN_Sdac C704 C790 . 1 27p VrefP_Sdac IC701 VrefN_Sdac C705 7p CH VrefP_Sdac XtalIn XtalOut VssA1 GND RefAdN V3. 3A1 C307 MC X MC C308 X C703 LC803 QQR1199-002 Y816 X R805 75 J802 QNN0349-002 8V A_VCC A_GND 5V 5V 12V 3. 3V NECK H_DRIVE HFB ABL EW P_ON/OFF VDRA+ VDRBPROTECT V12A 4. 5/OTHER L003 QQL244J-4R7Z R317 C758 . 22 Bout R734 100 Gout K301 X Y806 X D811 *8 Y825 BW R806 75 C706 7p L717 *4 CH X701 QAX0799-001Z R756 10K ANALOG Rout C757 560p BLKIN CH BCL V5P3 Gnd3 DIGITAL R733 100 R732 1K K701 QUY160-150Y Y822 X L301 X PR PR_GND Y_GND LC804 QQR1199-002 Y807 X VIDEO-2 COMPONENT VIDEO INPUT R316 Y808 X Y824 QUY160-200Y SCL1 SDA1 NECK C823 NCB31HK-152X R2 L2 NECK CONT L718 *4 D812 *8 NECK CONT R731 1K MC C756 . 1 L706 *4 D708 *3 C785 2. 2 C707 . 1 C709 . 01 C710 6800p C708 100/16 C711 2. 2/50 C712 . 22 TF C784 X V5P1 MC R701 12K MC Ph2 Ph1 Gnd1 SecPll Dec8G EW MC VDRBMC VDRA+ R704 100 Vif1 Ysync Yin/G2/Y Yout Uout/INSSW2 J803 QNN0348-001 C755 10/50 C779 10/50 C753 . 1 C752 . 1 C751 . 1 C754 . 1 D753 *8 Y705 0 MAIN MICRO COMPUTER/TELETEXT DECODE/ IF VIDEO RGB SYNC DEF. PROCESS B3/Pb G3/Y R3/Pr INSSW3 PB GND V2/Y PR PR_GND BASS J805 X A_GND 5V C824 NCB31HK-152X C713 10/50 C714 EW . 022 MC R782 1. 2K NC R729 X D751 *8 Y706 0 Y821 QUY160-050Y 3. 58/OTHER CF101 QAX0349-001 R101 68 R005 75 C002 10/50 IF NC 32V LOCK 5V BM SDA D103 SCL AS BT AGC D104 C101 . 01 MC C111 220/16 C106 . 01 MC R702 X C715 . 001 R703 100 C716 . 001 OPEN SF102 QAX0723-001 VDRBVDRA+ C110 . 1 L101 QQL244K-1R0Z 8. 2K C780 . 1 C750 . 1 R809 0 V_OUT R808 X R807 100 1/2W C804 470/16 MC C001 . 01 Y008 0 C717 SF101 X X TF C718 . 15 R705 39K Vif2 Vsc Iref C749 . 1 Uin/B2/Pb Vin/R2/Pr V5Comb VssComb R728 Ssif/RefIn/Avl/RefOut R815 75 Q801 KTA1267/YG/-T D813 *8 J804 QNN0349-001 R104 100 L002 QQL244J-4R7Z C004 470/16 R001 220 x x R003 3. 9K R102 R107 X D101 X Q101 2SC5397/CD/-T C748 . 1 C809 X C746 . 1 100 R727 R726 27K 560 S_REDUCE OFF_MUTE R_AOUT L_AOUT BASS C003 . 1 R002 220 1. 8K 22 MC C107 X X X X GndIF Sif1 Sif2 V8AudioSwitches IfVo/FmRo/DvbO C109 0 X C747 10/50 L716 *4 L_OUT C802 10/50 R810 390 Y007 R109 R110 GND R_OUT D805 X R811 82K OUTPUT D102 C719 R706 Y003 X .01 220 Hout QssO/AmO/AudeEm MC AGC MC EHT R105 R103 Q102 X Y004 X FbiSo CVBSO/PIP Audio2InR Audio2InL C720 . 001 R707 22K DecsDem Y3/Cvbs R_OUT AgcSsif V_OUT L_OUT SifAgc HP_R HP_L Gnd2 V5P2 C005 . 0022 SVM R724 R778 LC701 X Y703 X X X R722 X Q702 X R725 X C803 10/50 D806 X R812 390 Q103 X A_R A_L PllIf NC R3 R1 R2 C4 C1 V3 MC 47/25 MC .01 V2/Y R813 82K L3 L1 L2 .01 C006 33/16 27 MC R004 27K C105 X MC MC C108 X R708 10K MC C736 . 01 C744 . 1 C739 1 C781 1 C782 1 MC C727 3300p C723 C724 C732 2. 2/50 R723 X H_DRIVE IC601 AN5277 AUDIO AMP NC L_R_MUTE B_MUTE GND_B B_OUT L_OUT ROUT GND VCC STB C103 C104 R106 C102 R108 D710 *8 X D704 *8 C741 . 1 X 1 1 HFB C745 . 1 C735 . 1 C740 . 1 5V D702 *8 C737 . 1 C738 1 U V R715 390 C729 2. 2/50 C742 10/50 Y ABL R709 1M C721 X Q803 *6 Q805 *2 Q804 *6 W-A D606 X Q611 *6 R636 0 R640 1K X R721 R720 R797 X R798 X RIN Y702 X BIN LIN NC NC NC NC NC NC NC NC RF D703 *8 10/50 C730 22/50 R772 2. 2K R773 3. 9K R774 2. 2K R775 3. 9K R710 X C725 . 1 C726 10/50 C728 . 1 R711 2. 2K R712 3. 9K R713 2. 2K R714 3. 9K Y707 0 R007 X C734 L704 R786 75 R769 X R770 X CVBSO/PIP_GND C602 10/50 10K C786 L705 Y1/CVBS1 R719 CVBSO/PIP C1_GND V_OUT Y_GND R_OUT L_OUT V2/Y ABL A_L R3 R1 R2 C1 L3 8V 5V V3 L1 L2 X D S SCL1 A_R R637 5. 6K R604 10K A_R Y005 0 HP_R HP_L Q002 X R601 0 R662 X R602 0 C656 100/50 C601 10/50 R606 C604 2. 2 1/2W . 22 C603 . 22 G R618 R617 X C611 X D SDA1 C743 10/50 R717 R718 R768 100 3. 9K 2. 2K D001 X C733 R008 X G Q001 X S D602 X C605 . 22 OFF_MUTE A_MUTE B_MUTE 12V HP_R A_B A_B C655 X R605 C612 X A_VCC HP_L P_ON/OFF V12A D604 X L651 X CF702 X CF701 X C722 X R767 X D610 C662 10/50 *3 R619 X Y701 X R639 5. 6K R625 X Q701 X R607 2. 2 1/2W Q603 *6 Q604 X Q605 *6 C653 X R659 X C659 X C654 X C608 220/16 Y704 QUY160-075Y Y708 X Y709 BW Y711 QUY160-150Y Y713 X Y714 BW Y716 X Y719 0 Y720 X Y721 X C773 . 1 Y811 X Y812 X C609 33/50 R610 100K D651 X R652 X C651 X C652 R657 X X R658 X D608 x CP Q606 X MAIN PWB ASS'Y (1/4) SCW-1714A-H2 [AV-21MT15/P] SCW-1715A-H2 [AV-21MP15/T] R663 X C665 X R651 X R653 X R654 X IC651 X C660 X R664 X C657 X N D607 *3 R612 100K R613 X R614 100K R615 X R635 X D603 *3 R656 X IC651 X C607 220/16 Q601 *2 R649 1K Q602 *2 R655 X C610 220/16 N C658 X R611 10K Q609 *6 R634 0 R608 X R609 27K D609 x C661 10/50 ! CP650 ICP-N25-T Q607 *1 R623 33K R620 10K R621 2. 2K NOTE) 1. Refer to the part list for the part number of IC701 and IC702. 2. Refer to page 2-21 for voltages of this circuit diagram. 3. Refer to page 2-22 for waveforms of this circuit diagram. Y101 QUY160-075Y Y102 X Y103 X Y106 X Y107 X GND GND K102 QUY160-150Y K104 QQR1114-001Z K105 QUY160-150Y K106 QUY160-150Y K107 QUY160-150Y C112 0 GND GND R622 10K Q608 *1 C613 10/50 C617 x Y722 QUY160-150Y R616 X R624 68K GND GND Q610 X D605 X GND Y006 0 R766 X R638 X C606 . 22 5V 5V A_L CS21177 (No. YA270)2-5 2-6(No. YA270) R814 100K R006 X C731 R716 2. 2K X *4 D701 *3 3. 9K Y710 BW C614 *4 .1 .1 X MAIN PWB CIRCUIT DIAGRAM [AV-21MT15/P, AV-21MP15/T] (3/4), (4/4) P_ON/OFF PROTECT 3. 3V_STB BL_GND H_DRIVE VDRA+ A_GND A_VCC V12A VDRB- NECK HFB . 3V ABL 12V 32V 8V 5V EW PW IC351 ABL PROTECT STB TP-47G TP-47R TP-47B TDA6107AJF/N1 ! ! F901 QMF51E2-4R0-S RY901 QSK0061-002 ! PW ABL D956 *3 R963 22K HFB C966 100/16 EW VDRBVDRA+ R964 27K NECK PROTECT D957 *3 D976 X P_ON/OFF H_DRIVE P_ON/OFF HFB EW VDRBX ! R356 QRE121J-222Y CN0PW QGA7901C1-02 MAIN PWB ASS'Y(1/4) CN00T D370 150 150 150 L357 BW S901 QSW0750-001 NECK D594 X R596 X R351 100 ! VA901 QAF0060-621 R910 X ! C910 QFZ9072-224 Q955 *1 CH D595 X Q592 X R595 X Q591 X R355 QRE121J-222Y R357 QRE121J-222Y C351 1000p ! R597 X VDRA+ R358 QRZ0107-152Z R359 QRZ0107-152Z R360 QRZ0107-152Z SG351 X ! SK351 QNZ0536-001 C352 4. 7/250 X X L355 BW LF901 QQR0673-004 IC971 X CONT D593 X L356 BW ! C353 QFKC2EK-104Z AC110V-AC240V 50Hz/60Hz R352 R353 R354 Y901 X Y902 X Y903 X Y904 X GND SUB 32V VIN PROTECT 5V R421 10K Q422 *1 Q421 *1 IC401 LA78040N PROTECT D472 X THERMAL PROTECTION PUMP UP Vcc -Vcc R473 68K C422 QCS32HJ-180Z 2. 2K SG353 X SG352 X R380 R381 D351 FR105SGT-T2 12V 5V 8V C971 D354 D355 C972 C974 X C973 X X R971 X 3. 3V_STB V. OUT D591 X R592 X D592 X R593 C592 X X D356 L971 X X L351 QQL244J-220Z R594 X C593 X VO NC CN *9 *9 *9 ! SK351 QNZ0536-001 CNDEG QGZ5004C1-02 ! 22/50 CN0E1 Y906 X Y905 X Y907 X