How to Trace a PCB on a Projection TV

Traces on printed circuit boards (PCBs) are the electrical circulatory system inside a projection television. Fully functioning capacitors and resistors on a computer's circuit board may be completely functional, but fail to work correctly due to a bad trace. Repairing a bad trace is a matter of understanding what one looks like, then tackling the repair itself. Instructions 1 Locate the broken trace with a magnifying glass. The trace may also appear scorched or burned. 2 Cut repeated shallo...

PCB printed circuit board(PCB)

PCB Design Projects

Printed circuit boards (PCBs) are what usually come to mind when people think of electronic circuits. Although commercial products all use PCBs, they are comparatively rare in do-it-yourself projects. One-of-a-kind electronic circuit-makers rarely have the resources necessary to take an electronic circuit into PCB layout or produce the PCB. Some PCB projects use a microcontroller. The program code required for the microcontroller in each of these projects is available with the PCB plans. Ardu...

PCB Design Printed circuit board(PCB)

How to Control Radiated EMI Through PCB

All electronic devices, such as cell phones and televisions, contain one or more Printed Circuit Boards (PCBs). PCBs have electronic components that are connected together through thin copper traces. When such a PCB is operating, electrical currents constantly travel between different components through copper traces. These changing currents produce Electromagnetic Interference (EMI), which can affect the performance of the circuit and of any other electronic device in the vicinity of the circui...

PCB Printed Circuit Board(PCB)

Printed Circuit Board Fabrication

A printed circuit board (pcb) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. pcb's can be single sided (one copper layer), double sided (two copper layers) or multi-layer. Conductor on different layers are connected with plated-through holes called vias. Advanced PCB's may contain components - capacitors, resistors or active devices - embedded in the substr...

Printed Circuit Board(PCB) PCB fabrication

How to Replace Parts on a Circuit Board

Many problems that circuit boards have may be repaired by replacing defective parts. You do not have to be an electronics engineer to remove and replace bad parts. Parts that commonly need to be replaced include capacitors, transistors and various electronic chips. If, through visual inspection or through circuit analysis, you can identify which part is defective, you can usually repair a circuit board. Instructions 1 Identify which part you want to replace on your circuit board. On the oth...

Circuit Board printed circuit board(PCB)

Circuit Board Parts & Tools

All electronic devices, such as televisions and phones, contain one or more printed circuit boards or PCBs. A typical PCB contains a number of electronic components connected together through copper lines on the board. The components are held on the board through electrically conducting bonds between their terminals as well as by pads on the board. A number of tools are required to install and repair components on a PCB. Active Electronic ComponentsAn active electronic component is a device th...

Circuit Board printed circuit board(PCB)

How to Diagnose Circuit Board Problems

Testing a circuit for connection problems can be a difficult and timely task. It requires you to check almost every wire for conductivity of electricity. A lot of times, electronics attract dust and other particles that are harmful to the circuits. This dust can short out the circuits or corrupt the connection. Sometimes the problem area is visible, but other times it is not and you have to check seemingly undamaged connections to find the problem. Instructions 1 Examine the circuit board for ...

Circuit Board printed circuit board(PCB)

How to Deal With Harmful PCB Effects

label: Printed circuit board(PCB),PCB designs Printed circuit board(PCB) are by far the most common method of assembling modern electronic circuits. Composed of a sandwich of insulating layer (or layers) and one or more copper conductor patterns, they can introduce various forms of PCB errors into a circuit, particularly if the circuit is operating at either high precision or high speed. PCBs, then, act as “unseen” components wherever they are used in precision circuit designs. Since embed...

Printed circuit board(PCB) PCB designs

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