| 摘要 |
A shielded modular tuner is horizontally mounted onto a chassis printed circuit board and is provided, through an aperture in the shield, with lead connections from the edge of the tuner printed circuit board to the chassis printed circuit board, for power supply, control signals, outputting a processed signal, etc. The RF signal is coupled to the tuner via a conductive pin/lead extending from an RF signal conducting path on the chassis printed circuit board, passing through a second aperture in the shield, directly to the point on the tuner printed circuit board where the signal is to be inputted for tuner processing. In this way, the RF signal is injected directly into the tuner precisely where it is needed without being led along a longer and possibly meandering path from the edge of the tuner printed circuit board, and without a shielded coaxial cable and accompanying connectors.
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