Laptop Motherboard Repair Forum | Laptop schematic download website | Mobile schematics download website
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Hi, have you got any guides or steps to troubleshoot laptop motherboards post here please, help each other.
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Laptop's SMD Components
this section is about to tell you the components used on a laptop and identification the components.
What is Shunt Resistor A shunt is a resistor connected in parallel with an ammeter as a shunt in order to expand the current measurement range. Recently, resistors for current detection that...
PWM IC | Pulse Width Modulation There are some components on the motherboard of a laptop that use the technology PWM (Pulse Width Modulation) or Pulse Width Modulation to regulate that is...
SUPER IO | SIO | Embedded Controller | EC On the motherboard of a notebook you will find several ICs (Integrated Circuits), the biggest one is the Super I/O. It is the IC responsible for...
Integrated Circuits are usually called ICs or chips. They are complex circuits which have been etched onto tiny chips of semiconductor (silicon). IC (Integrated Circuit) is Component active...
Off-On Switches Laptop power button: Switches allow electric current to flow by closing the circuit, or stop electric current from flowing by opening the circuit. There are several types of...
Every motherboard will have at least one quartz crystal. This generates the basic timing signal that is used to produce the various frequencies required by the different parts of the system bus...
The CMOS battery also known as coin cell battery, is not there to provide power to the laptop when it is in operation, it is there to maintain a small amount of power to the CMOS when the laptop...
What is a MOSFET? MOSFET or Metal Oxide Semiconductor Field Effect Transistor also called as voltage controlled device acts as an amplifier and a switch. It amplifies only DC voltage and not AC...
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A transistor is a semiconductor, meaning that sometimes it conducts electricity, and sometimes it doesn’t. Its internal resistance varies, depending on the power that you apply to its base. NPN...
A coil is conductor wire such as copper in a cylindrical form around an iron core that creates an inductor or electromagnet to store magnetic energy. Coils are often used to remove power spikes...
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Diodes force the current to flow in only one direction, like a one-way valve, general function of diode is for rectifier and alternating current protection. Diodes have a negative lead (-) and...
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Basically, capacitors are components that store charge, a bit like a mobile battery, but not much charge. Capacitors can store that charge and then, release it very quickly. Capacitors are mainly...
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A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust...
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Fuse Serves as a Security, if there is a shorting circuit, this component will be broken. On older laptops, the cause of the totally dead laptop is this component on the DC IN circuit. It is...
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The component form is divided into 2, they are standard component and SMD or mini component, and of its characteristic are also divided into 2, active and passive components. The active component...