Description
Product details:
6637517A1 660-MISC-3311 Circuit boards according to the number of layers to be divided into single panel, double panel, and multilayer circuit boards three large classification.
The first is the single panel. On the most basic PCB, the parts are concentrated on one side and the wires on the other. This type of PCB is called a single-sided circuit board because the wires appear on only one side. Single panels are usually simple and inexpensive to make, but the disadvantage is that they cannot be used on complex products.
Dual panel is an extension of single panel, when single-layer wiring can not meet the needs of electronic products, dual panel will be used. Both sides are covered with copper and have a route, and the line between the two layers can be guided through the hole, so that it forms the required network connection.
6637517A1 660-MISC-3311 circuit board repair is a new repair industry. The degree of automation of industrial equipment is getting higher and higher, so the number of industrial control board in various industries is also increasing. After the industrial control board is damaged, the high cost required to replace the circuit board (at least thousands of yuan, more than tens of thousands or hundreds of thousands of yuan) has become a very headache for the enterprises. In fact, the vast majority of these damaged circuit boards can be repaired in China, and the cost is only 20%-30% of the purchase of a new board, the time used is much shorter than the foreign fixed board. The following introduces the basic knowledge of circuit board maintenance.
Almost all circuit board maintenance without drawing materials, so many people are skeptical about circuit board maintenance, although various circuit boards vary, but the same is that each circuit board is composed of a variety of integrated blocks, resistors, capacitors and other devices, so the circuit board damage must be caused by one or some of the device damage, The idea of circuit board maintenance is established based on the above factors. Circuit board maintenance is divided into two parts: inspection and maintenance, among which inspection occupies a very important position. The basic knowledge of each device on the circuit board is repaired and tested until the bad parts are found and replaced, so a circuit board is repaired.
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