| 摘要 |
In a video disc player, a stylus arm, having a track-following stylus at one end thereof, has its other end secured to a pickup cartridge by means of a compliant member. A conductive flylead disposed in the cartridge provides an electrical connection between an electrode incorporated in the stylus and a terminal disposed in the cartridge. The pickup cartridge is removably received in an arm carriage which is translated along a path disposed radially of the disc record during playback. Reception of the cartridge on the carriage establishes an electrical contact between the cartridge terminal and signal pickup circuits in the player. The pickup circuits additionally serve to sense a stylus position representative capacitance formed between the flylead and a second electrode mounted on the cartridge adjacent thereto.
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