Hp Desktop Motherboard Schematic Diagram Pdf
Laurene Arrison
Mnay many Thanks for sharing this, I really appreciate it. But the Promedia speakers that i own, comes with a SMPS and not a transformer. Could you please share the Schematic diagram of the New SMPS version of the Promedia 2.1 Speaker System. Your help will be much appreciated.
Is it possible to connect the promedia 2.1 subwoofer to a home theatre? If I use a DIY repair cable and connect the orange wire (SUB) and shield wire (GND) to an RCA then into the SUB input on my receiver, will this work?
I have a Promedia 2.1 I bought in 2000 and the subwoofer recently went out. The well-known cause is due to the current flowing through two resistors on the subwoofer board which overheat and affect the solder joints (C16-17).
Interestingly the schematic above shows 1000 ohm 2W resistors in these spots with a sidenote that 1W versions are used in early models. Mine came with 800 ohm 1W resistors (gray-blk-brn-gold) which measured about 910 ohms which is 15% out of spec. I'm going to replace them with 800 ohm 2W versions. If I sense any problems I'll upgrade them to 1K.
Attached is a photo of my scorched board in the process of also rebuilding with new capacitors, showing the original resistors. A fun project.
Hi! I'm pretty much a newbie when it comes to troubleshooting electronics, so I'm hoping y'all can help me! Recently, the LED on my control pod went out, and I thought the speakers did as well. Then I discovered that they're just very very quiet - with the volume know maxed, I can just barely hear the music.
The pinout is on the inside of the box on the board at the soldering joints. Id include a pic but i think i have to register for that. Just unscrew it and each soldering joint at each in connector is labeled but just in case I'll read off labels and colors for you....
GREEN = "SGND" (and judging from the circuit path im guessing "signal gnd" is coupled with the main PS/overall modulated ground. That is to say its the negative side of your signal. But i cant be sure til i do some testing. Im converting my unit to a standalone speaker tower with a BT reciever so ill let ya know when i get done)
A schematic, or schematic diagram, is a designed representation of the elements of a system using abstract, graphic symbols rather than realistic pictures. A schematic usually omits all details that are not relevant to the key information the schematic is intended to convey, and may include oversimplified elements in order to make this essential meaning easier to grasp, as well as additional organization of the information.
For example, a subway map intended for passengers may represent a subway station with a dot. The dot is not intended to resemble the actual station at all but aims to give the viewer information without unnecessary visual clutter. A schematic diagram of a chemical process uses symbols in place of detailed representations of the vessels, piping, valves, pumps, and other equipment that compose the system, thus emphasizing the functions of the individual elements and the interconnections among them and suppresses their physical details. In an electronic circuit diagram, the layout of the symbols may not look anything like the circuit as it appears in the physical world: instead of representing the way the circuit looks, the schematic aims to capture, on a more general level, the way it works. This may be contrasted with a wiring diagram, which preserves the spatial relationships between each of its components.
A semi-schematic diagram combines some of the abstraction of a purely schematic diagram with other elements displayed as realistically as possible, for various reasons. It is a compromise between a purely abstract diagram (e.g. the schematic of the Washington Metro) and an exclusively realistic representation (e.g. the corresponding aerial view of Washington).
In electrical and electronic industry, a schematic diagram is often used to describe the design of equipment. Schematic diagrams are often used for the maintenance and repair of electronic and electromechanical systems.[1] While schematics were traditionally drawn by hand, using standardized templates or pre-printed adhesive symbols, today electronic design automation software (EDA or "electrical CAD") is often used.
In electronic design automation, until the 1980s schematics were virtually the only formal representation for circuits. More recently, with the progress of computer technology, other representations were introduced and specialized computer languages were developed, since with the explosive growth of the complexity of electronic circuits, traditional schematics are becoming less practical. For example, hardware description languages are indispensable for modern digital circuit design.
Schematics for electronic circuits are prepared by designers using EDA (electronic design automation) tools called schematic capture tools or schematic entry tools. These tools go beyond simple drawing of devices and connections. Usually they are integrated into the whole design flow and linked to other EDA tools for verification and simulation of the circuit under design.
In electric power systems design, a schematic drawing called a one-line diagram is frequently used to represent substations, distribution systems or even whole electrical power grids. These diagrams simplify and compress the details that would be repeated on each phase of a three-phase system, showing only one element instead of three. Electrical diagrams for switchgear often have common device functions designate by standard function numbers. Another type of diagram used for power systems is a three-line diagram.
For analysis purposes of a power system, from the one-line diagram, if the system is balanced, an equivalent per-phase (or single-phase) schematic diagram can be obtained. If all of the parameters are represented as impedances and voltage sources, the equivalent per-phase schematic diagram is called an impedance diagram. If all of the parameters are represented as admittances and current sources, the equivalent per-phase schematic diagram is called an admittance diagram.
If the power system is unbalanced, but it is linear (or can be approximated by a linear system), then Fortescue's theorem (symmetrical components) can be applied. In this way, from the one-line diagram, three different per-phase schematic diagrams are obtained, known as sequence diagrams: positive sequence diagram, negative sequence diagram, and zero sequence diagram. Each of these diagrams can be represented as an impedance diagram or as an admittance diagram.
Schematic diagrams are used extensively in repair manuals to help users understand the interconnections of parts, and to provide graphical instruction to assist in dismantling and rebuilding mechanical assemblies. Many automotive and motorcycle repair manuals devote a significant number of pages to schematic diagrams.
Most of the diagrams are presented both in PDF format and in Boardview format - this is a file(s) containing information about a certain printed circuit board: the components located on it, the signals used, test points, etc. BoardViewer is a program designed to view many different boardview formats.
Elitegroup Computer Systems, commonly known as ECS, is a Taiwanese computer hardware manufacturer that produces motherboards, desktop computers, laptops and other electronic products. Founded in 1987, ECS has grown into a global company with a strong presence in Asia, Europe and North America. Few may know about this company, since the decline of the production of consumer motherboards happened quite a long time ago.
In recent years, ECS has focused on expanding its business beyond computer hardware, investing in emerging technologies such as artificial intelligence and the Internet of Things. The company has also partnered with other technology companies Amazon Web Services and Qualcomm to develop new products and services.
To download the user manual, go to the category of your equipment, select the brand of your equipment, then click on the model you are interested in. The manual is automatically downloaded to the desktop or to the download files of your computer.
The level of abstraction is the level of complexity to which an electronic system or computer program is created. At the lowest level of abstraction, every individual component is identifiable. As the level of abstraction increases, few details related to the system can be identified. At the highest level of abstraction, only the entire system is identifiable. Within programming, the ideal is to determine the most appropriate level of abstraction at which to incorporate the appropriate collection of blocks of code within modules stored within libraries to facilitate more general-level writing of code.
Specific to electronics, an analog signal is any continuous electric pulse of varying amplitude. If we view a tone playing from a speaker as a sine wave, an increase in amplitude is equivalent to a louder sound from the speaker. An increase in the number of waves within certain period of time is equivalent to a higher pitched tone (perhaps from a middle C note to a middle E note). In these graphs of two different sine waves, the left sine wave plot shows increasing amplitude of the same tone while the right sine wave plot shows a relatively tone held at the same amplitude.