Tuner circuit substrate having a jack attachment plate electrically connected with an earth pattern
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United States of America Patent
Stats
-
Aug 1, 1995
Grant Date -
N/A
app pub date -
Oct 27, 1993
filing date -
Oct 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a tuner for converting antenna input signal into audio signals, tuner circuit components are mounted on a tuner circuit substrate. Of the tuner circuit components, FM wave front end circuit components constituting a high-frequency amplifying circuit, a mixing circuit and a local oscillating circuit are surrounded by a shield case. An antenna jack including an earth tube and a signal terminal insulated from the earth tube is mounted on the tuner circuit substrate. The signal terminal of the antenna jack is connected to an antenna input signal pattern of the tuner circuit substrate. The earth tube of the antenna jack is forced in and supported by a jack attachment plate that is an extension of the shield case.
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