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How to repair the aluminum substrate?
30 września 2019
Nastrój: Szczęśliwa

First, the aluminum substrate board observation: First of all, the aluminum substrate card board observation, board observation is also a preliminary study, the purpose is to understand what input and output interfaces of the board, what are the functions of the board, the various control parts of the board Distribution and other information.
Second, the aluminum substrate line test: After completing the fault understanding, board observation, according to the actual situation, the board is initially tested, the line test may not be able to find the fault point of the board, but the experienced circuit board repair Personnel can eliminate a wide range of faults by testing to pave the way for subsequent repairs.
Third, the detection of aluminum substrate components: the inspection of components, most of them need to pass the soldering iron to the components from the top of the circuit board, and then from the professional equipment testing, this process will cause damage to the external integrity of the circuit board, so generally In the case of maintenance personnel will not arbitrarily remove components.
Fourth, aluminum substrate fault repair: through line testing, component testing and other work, find out the fault handling, including line repair, component replacement, transformation and other work.
Fifth, the machine test on the aluminum substrate: the board that completes the maintenance work needs to conduct the line test again, and after confirming that there is no fault, it can be tested on the machine.
Most of the LED circuit board repairs are looking for the cause of the fault. Only when the fault is found can the fault be solved effectively.

https://www.lhd-pcb.com/multilayer-pcb.html

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