| 摘要 |
PROBLEM TO BE SOLVED: To facilitate to attach and detach a memory pack to/from a panel rear face of the panel. SOLUTION: A pair of guide pieces 25 guiding a memory pack 20 toward a connector 18 provided in a circuit board 24, a pair of pressing pawls 27 which is respectively erected from the guide pieces 25 and are engaged with the upper edge parts of the pack 20 to prevent backlash and a fixing pawl 26 which presses the rear end of the memory pack, prevents the memory pack from dropping out and fixes it are provided on the rear face side of a panel, and the pack 20 is attached and detached without needing a tool such as a driver.
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