| 摘要 |
PROBLEM TO BE SOLVED: To finish a test so as to invalidate testing so far when a connector for testing is out of a circuit board during testing. SOLUTION: An electronic circuit unit having the connector for testing comprises the printed circuit board 1, a JTAG testable integrated circuit 2, and the connector 3 for testing mounted on the board 1. The circuit 2 has a controller 2c for controlling the JTAG test. The connector 3 has at least a reset terminal 3d to externally input a reset signal for previously resetting the controller 2c prior to the JTAG test. The terminal 3d is grounded by a pull-down resistor 4.
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