| 摘要 |
PROBLEM TO BE SOLVED: To provide a substrate unit capable of detecting an incomplete fitting state of a connector.SOLUTION: A substrate unit comprises: a master substrate 10; a card edge connector 11 arranged on the master substrate 10 and having a plurality of terminals 111, 112 including a plurality of detection terminals 111, 112, 111, and 112for detecting a fitting state; a slave substrate 30 having a card edge connector part 37 on which a plurality of electrodes 38 including a plurality of detection electrodes 38-38for detecting a fitting state that are connected with the plurality of detection terminals are formed; and a voltage output circuit 15 arranged on the slave substrate 30 so as to have a plurality of resistors connected with the plurality of detection electrodes, supplied with a power from a power supply IC 12 from the master substrate 10 side via the terminal 112 and the electrodes 38, and outputting a voltage different depending on a connection state between the plurality of detection terminals and the plurality of detection electrodes that is based on the fitting state of the card edge connector part 37 to the card edge connector 11. |
