Why does a static shock on a device on a separate circuit result in the blinking of a PC keyboard backlight?

A static shock on a device connected to a different circuit can induce electrical interference or voltage fluctuations in the surrounding environment.

This interference can propagate through the electrical wiring and affect sensitive electronic devices, such as a PC keyboard with backlighting.


The blinking of the keyboard backlight may occur as a result of the transient voltage spike caused by the static shock, disrupting the normal operation of the keyboard's lighting system.


To mitigate this issue, consider implementing measures such as using surge protectors or grounding devices to reduce the risk of static discharge and minimize the impact of electrical interference on electronic equipment.
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