| 摘要 |
PURPOSE: To execute an electric test for the function of each module independently of other modules by fixing respective modules such as a power controller, an IF amplifier and a VCO for a radio transceiver on a circuit board by plural connection elements. CONSTITUTION: The radio transciever 10 is divided into plural modules such as a power control module 32, an IF amplifier module 50, a notch filter module 42, a VCO module 24, and a PLL/voltage adjuster (loop filter) module 22. Respective modules are fixed on the circuit board by plural connection elements and respective modules and connection elements are electrically and physically arranged so as to execute an electric test for the function of each module independently of other modules. Consequently a test system can be automated, the necessity of a trained engineer can be omitted, a circuit board failed in a test can easily be repaired, and production cost can be reduced. |
