| 摘要 |
An electric apparatus has a motherboard, a control board and daughter board in a case. A front wall of the case is configured to have an opening. The motherboard is placed far behind an opening formed by removing the front wall. The control board, daughter board and extension board are inserted into the case from the opening toward the motherboard. A first connector provided at insertion ends of the control board and extension board is connected to a first receptor mounted on the motherboard. A second connector provided at an insertion end of the daughter board is connected to a second receptor mounted on the extension board. A holder which prevents the second connector being extracted from the second receptor when the daughter board is pulled out from the case, is mounted on the extension board.
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