Input power over the impact of power will often form a drive circuit driver chip damage, as well as passive components such as passive breakdown breakdown.
输入电源的过电冲击常常会形成驱动电路中驱动芯片的损坏，以及电容等被动元件发作击穿损坏。
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To the left of the chip we see the decoupling caps, the input caps (electrolytic) and input RF filter. The other electrolytic may be on the 5 volt supply.
According to the logic chip design feature, the chip work's time signal can be divided into 4 kinds: clock signal, input signal, combination output signal and register output signal.