Line system for reducing interference to front VGA cable
A line and cable technology, applied in the field of line systems to reduce interference of front VGA cables, can solve problems such as crosstalk of VGA signals into interference signals, weak conductivity of the front small board shell, failure of radiation interference tests, etc. The effect of transmission quality, maintaining the stability of normal work, and reducing the risk of affecting the normal work of the motherboard
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[0024] The circuit system for reducing the interference of the front VGA cable described in this embodiment, on the basis of Embodiment 1, a "π" type filter circuit is set on the front small board of the front panel of the chassis, and the "π" type filter circuit is a capacitor -Inductance-capacitance mode, which can effectively filter out the interference signal from other lines on the main board crosstalking into the VGA line, and at the same time effectively filter out the interference line number from crosstalking into the internal cable in the chassis. In addition, the interference signal crosstalked into the external cable by the external space of the chassis will be filtered out by the "π" type filter circuit when it is "fed back" to the front small board.
[0025] In the circuit system of embodiment 2, the shell of the front small board at the front panel of the chassis is set as a metal shell; the metal shell of the front small board and the metal shell of the chassis ...
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