| 摘要 |
A circuit board (30) is provided with a first substrate (31) whereupon a wiring pattern (32) for detection is formed, and a plurality of connectors (35A-35C) mounted on the first substrate (31). A plurality of pins (36a-36h) respectively arranged on the connectors (35A-35C) include a pair of detecting pins electrically connected to each other through the wiring pattern (32). |
